fix: initial frame on frameless windows

ci: fix setCertificateVerifyProc tests (#30799 )
fix: remove extension warning that do not have any impact (#29695 )
2026-02-19 03:14:51 -05:00 · 2021-09-02 14:47:12 +02:00 · 2021-09-01 18:58:29 -04:00 · 2021-09-01 15:36:21 -07:00 · 2021-09-01 15:21:15 -07:00 · 2021-09-01 15:55:07 -04:00
1286 changed files with 35246 additions and 31221 deletions
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
--- a/.devcontainer/README.md
+++ b/.devcontainer/README.md
@@ -0,0 +1,59 @@
+# Electron Dev on Codespaces
+
+Welcome to the Codespaces Electron Developer Environment.
+
+## Quick Start
+
+Upon creation of your codespace you should have [build tools](https://github.com/electron/build-tools) installed and an initialized gclient checkout of Electron.  In order to build electron you'll need to run the following commands.
+
+```bash
+e sync -vv
+e build
+```
+
+The initial sync will take approximately ~30 minutes and the build will take ~8 minutes.  Incremental syncs and incremental builds are substantially quicker.
+
+## Directory Structure
+
+Codespaces doesn't lean very well into gclient based checkouts, the directory structure is slightly strange.  There are two locations for the `electron` checkout that both map to the same files under the hood.
+
+```graphql
+# Primary gclient checkout container
+/workspaces/gclient/*
+  └─ src/* - # Chromium checkout
+     └─ electron - # Electron checkout
+# Symlinked Electron checkout (identical to the above)
+/workspaces/electron
+```
+
+## Goma
+
+If you are a maintainer [with Goma access](../docs/development/goma.md) it should be automatically configured and authenticated when you spin up a new codespaces instance.  You can validate this by checking `e d goma_auth info` or by checking that your build-tools configuration has a goma mode of `cluster`.
+
+## Running Electron
+
+You can run Electron in a few ways.  If you just want to see if it launches:
+
+```bash
+# Enter an interactive JS prompt headlessly
+xvfb-run e start -i
+```
+
+But if you want to actually see Electron you will need to use the built-in VNC capability.  If you click "Ports" in codespaces and then open the `VNC web client` forwarded port you should see a web based VNC portal in your browser.  When you are asked for a password use `builduser`.
+
+Once in the VNC UI you can open `Applications -> System -> XTerm` which will open a VNC based terminal app and then you can run `e start` like normal and Electron will open in your VNC session.
+
+## Running Tests
+
+You run tests via build-tools and `xvfb`.
+
+```bash
+# Run all tests
+xvfb-run e test
+
+# Run the main process tests
+xvfb-run e test --runners=main
+
+# Run the old remote tests
+xvfb-run e test --runners=remote
+```
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -0,0 +1,43 @@
+{
+	"dockerComposeFile": "docker-compose.yml",
+	"service": "buildtools",
+	"onCreateCommand": ".devcontainer/on-create-command.sh",
+	"workspaceFolder": "/workspaces/gclient/src/electron",
+	"extensions": [
+		"joeleinbinder.mojom-language",
+		"rafaelmaiolla.diff",
+		"surajbarkale.ninja",
+		"ms-vscode.cpptools",
+		"mutantdino.resourcemonitor",
+		"dbaeumer.vscode-eslint",
+		"shakram02.bash-beautify",
+		"marshallofsound.gnls-electron"
+	],
+	"settings": {
+		"[gn]": {
+			"editor.formatOnSave": true
+		},
+		"editor.tabSize": 2,
+		"bashBeautify.tabSize": 2
+	},
+	"forwardPorts": [8088, 6080, 5901],
+	"portsAttributes": {
+		"8088": {
+			"label": "Goma Control Panel",
+			"onAutoForward": "silent"
+		},
+		"6080": {
+			"label": "VNC web client (noVNC)",
+			"onAutoForward": "silent"
+		},
+		"5901": {
+			"label": "VNC TCP port",
+			"onAutoForward": "silent"
+		}
+	},
+	"hostRequirements": {
+		"storage": "32gb",
+		"cpus": 8
+	},
+	"remoteUser": "builduser"
+}
--- a/.devcontainer/docker-compose.yml
+++ b/.devcontainer/docker-compose.yml
@@ -0,0 +1,19 @@
+version: '3'
+
+services:
+  buildtools:
+    image: ghcr.io/electron/devcontainer:27db4a3e3512bfd2e47f58cea69922da0835f1d9
+
+    volumes:
+      - ..:/workspaces/gclient/src/electron:cached
+
+      - /var/run/docker.sock:/var/run/docker.sock 
+
+    command: /bin/sh -c "while sleep 1000; do :; done"  
+
+    user: builduser
+
+    cap_add:
+      - SYS_PTRACE
+    security_opt:
+      - seccomp:unconfined
--- a/.devcontainer/on-create-command.sh
+++ b/.devcontainer/on-create-command.sh
@@ -0,0 +1,74 @@
+#!/bin/bash
+
+set -eo pipefail
+
+buildtools=$HOME/.electron_build_tools
+gclient_root=/workspaces/gclient
+buildtools_configs=/workspaces/buildtools-configs
+
+export PATH="$PATH:$buildtools/src"
+
+# Create the persisted buildtools config folder
+mkdir -p $buildtools_configs
+rm -f $buildtools/configs
+ln -s $buildtools_configs $buildtools/configs
+
+# Write the gclient config if it does not already exist
+if [ ! -f $gclient_root/.gclient ]; then
+  echo "solutions = [
+      { \"name\"        : \"src/electron\",
+          \"url\"         : \"https://github.com/electron/electron\",
+          \"deps_file\"   : \"DEPS\",
+          \"managed\"     : False,
+          \"custom_deps\" : {
+          },
+          \"custom_vars\": {},
+      },
+    ]
+  " >$gclient_root/.gclient
+fi
+
+# Write the default buildtools config file if it does
+# not already exist
+if [ ! -f $buildtools/configs/evm.testing.json ]; then
+  write_config() {
+    echo "
+        {
+            \"root\": \"/workspaces/gclient\",
+            \"goma\": \"$1\",
+            \"gen\": {
+                \"args\": [
+                    \"import(\\\"//electron/build/args/testing.gn\\\")\",
+                    \"import(\\\"/home/builduser/.electron_build_tools/third_party/goma.gn\\\")\"
+                ],
+                \"out\": \"Testing\"
+            },
+            \"env\": {
+                \"CHROMIUM_BUILDTOOLS_PATH\": \"/workspaces/gclient/src/buildtools\",
+                \"GIT_CACHE_PATH\": \"/workspaces/gclient/.git-cache\"
+            },
+            \"remotes\": {
+                \"electron\": {
+                    \"origin\": \"https://github.com/electron/electron.git\"
+                }
+            }
+        }
+    " >$buildtools/configs/evm.testing.json
+  }
+
+  # Start out as cache only
+  write_config cache-only
+
+  e use testing
+
+  # Attempt to auth to the goma service via codespaces tokens
+  # if it works we can use the goma cluster
+  export NOTGOMA_CODESPACES_TOKEN=$GITHUB_TOKEN
+  if e d goma_auth login; then
+    write_config cluster
+  fi
+else
+  # Even if the config file existed we still need to re-auth with the goma
+  # cluster
+  NOTGOMA_CODESPACES_TOKEN=$GITHUB_TOKEN e d goma_auth login || true
+fi
--- a/.dockerignore
+++ b/.dockerignore
@@ -1,3 +1,2 @@
 *
 !tools/xvfb-init.sh
-!build/install-build-deps.sh
--- a/.env.example
+++ b/.env.example
@@ -4,4 +4,3 @@
 APPVEYOR_CLOUD_TOKEN=
 CIRCLE_TOKEN=
 ELECTRON_GITHUB_TOKEN=
-VSTS_TOKEN=
--- a/.github/CODEOWNERS
+++ b/.github/CODEOWNERS
@@ -12,10 +12,7 @@ DEPS                                    @electron/wg-upgrades
 /script/release                         @electron/wg-releases

 # Security WG
+/lib/browser/devtools.ts                @electron/wg-security
+/lib/browser/guest-view-manager.ts      @electron/wg-security
+/lib/browser/guest-window-proxy.ts      @electron/wg-security
 /lib/browser/rpc-server.ts              @electron/wg-security
-
-# Remote Change Disliker
-/lib/browser/remote/                    @nornagon
-/lib/renderer/remote/                   @nornagon
-/lib/renderer/api/remote.ts             @nornagon
-/docs/api/remote.md                     @nornagon
--- a/.github/ISSUE_TEMPLATE/Bug_report.md
+++ b/.github/ISSUE_TEMPLATE/Bug_report.md
@@ -1,58 +0,0 @@
---
-name: Bug report
-about: Create a report to help us improve Electron
-
---
-
-<!--  As an open source project with a dedicated but small maintainer team, it can sometimes take a long time for issues to be addressed so please be patient and we will get back to you as soon as we can.
-->
-
-### Preflight Checklist
-<!-- Please ensure you've completed the following steps by replacing [ ] with [x]-->
-
-* [ ] I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/master/CONTRIBUTING.md) for this project.
-* [ ] I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/master/CODE_OF_CONDUCT.md) that this project adheres to.
-* [ ] I have searched the issue tracker for an issue that matches the one I want to file, without success.
-
-### Issue Details
-
-* **Electron Version:**
-  * <!-- (output of `node_modules/.bin/electron --version`) e.g. 4.0.3 -->
-* **Operating System:**
-  * <!-- (Platform and Version) e.g. macOS 10.13.6 / Windows 10 (1803) / Ubuntu 18.04 x64 -->
-* **Last Known Working Electron version:**
-  * <!-- (if applicable) e.g. 3.1.0 -->
-
-### Expected Behavior
-<!-- A clear and concise description of what you expected to happen. -->
-
-### Actual Behavior
-<!-- A clear and concise description of what actually happened. -->
-
-### To Reproduce
-<!--
-Your best chance of getting this bug looked at quickly is to provide an example.
-->
-
-<!--
-For bugs that can be encapsulated in a small experiment, you can use Electron Fiddle (https://github.com/electron/fiddle) to publish your example to a GitHub Gist and link it your bug report.
-->
-
-<!--
-If Fiddle is insufficient to produce an example, please provide an example REPOSITORY that can be cloned and run. You can fork electron-quick-start (https://github.com/electron/electron-quick-start) and include a link to the branch with your changes.
-->
-
-<!--
-If you provide a URL, please list the commands required to clone/setup/run your repo e.g.
-```sh
-$ git clone $YOUR_URL -b $BRANCH
-$ npm install
-$ npm start || electron .
-```
-->
-
-### Screenshots
-<!-- If applicable, add screenshots to help explain your problem. -->
-
-### Additional Information
-<!-- Add any other context about the problem here. -->
--- a/.github/ISSUE_TEMPLATE/Feature_request.md
+++ b/.github/ISSUE_TEMPLATE/Feature_request.md
@@ -1,27 +0,0 @@
---
-name: Feature request
-about: Suggest an idea for Electron
-
---
-
-<!--  As an open source project with a dedicated but small maintainer team, it can sometimes take a long time for issues to be addressed so please be patient and we will get back to you as soon as we can.
-->
-
-### Preflight Checklist
-<!-- Please ensure you've completed the following steps by replacing [ ] with [x]-->
-
-* [ ] I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/master/CONTRIBUTING.md) for this project.
-* [ ] I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/master/CODE_OF_CONDUCT.md) that this project adheres to.
-* [ ] I have searched the issue tracker for a feature request that matches the one I want to file, without success.
-
-### Problem Description
-<!-- Is your feature request related to a problem? Please add a clear and concise description of what the problem is. -->
-
-### Proposed Solution
-<!-- Describe the solution you'd like in a clear and concise manner -->
-
-### Alternatives Considered
-<!-- A clear and concise description of any alternative solutions or features you've considered. -->
-
-### Additional Information
-<!-- Add any other context about the problem here. -->
--- a/.github/ISSUE_TEMPLATE/bug_report.yml
+++ b/.github/ISSUE_TEMPLATE/bug_report.yml
@@ -0,0 +1,77 @@
+name: Bug Report
+description: Report an Electron bug
+title: "[Bug]: "
+labels: "bug :beetle:"
+body:
+- type: checkboxes
+  attributes:
+    label: Preflight Checklist
+    description: Please ensure you've completed all of the following.
+    options:
+      - label: I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/master/CONTRIBUTING.md) for this project.
+        required: true
+      - label: I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/master/CODE_OF_CONDUCT.md) that this project adheres to.
+        required: true
+      - label: I have searched the [issue tracker](https://www.github.com/electron/electron/issues) for a feature request that matches the one I want to file, without success.
+        required: true
+- type: input
+  attributes:
+    label: Electron Version
+    description: What version of Electron are you using?
+    placeholder: 12.0.0
+  validations:
+    required: true
+- type: dropdown
+  attributes:
+    label: What operating system are you using?
+    options:
+      - Windows
+      - macOS
+      - Ubuntu
+      - Other Linux
+      - Other (specify below)
+  validations:
+    required: true
+- type: input
+  attributes:
+    label: Operating System Version
+    description: What operating system version are you using? On Windows, click Start button > Settings > System > About. On macOS, click the Apple Menu > About This Mac. On Linux, use lsb_release or uname -a.
+    placeholder: "e.g. Windows 10 version 1909, macOS Catalina 10.15.7, or Ubuntu 20.04"
+  validations:
+    required: true
+- type: dropdown
+  attributes:
+    label: What arch are you using?
+    options:
+      - x64
+      - ia32
+      - arm64 (including Apple Silicon)
+      - Other (specify below)
+  validations:
+    required: true
+- type: input
+  attributes:
+    label: Last Known Working Electron version
+    description: What is the last version of Electron this worked in, if applicable?
+    placeholder: 11.0.0
+- type: textarea
+  attributes:
+    label: Expected Behavior
+    description: A clear and concise description of what you expected to happen.
+  validations:
+    required: true
+- type: textarea
+  attributes:
+    label: Actual Behavior
+    description: A clear description of what actually happens.
+  validations:
+    required: true
+- type: input
+  attributes:
+    label: Testcase Gist URL
+    description: If you can reproduce the issue in a standalone test case, please use [Electron Fiddle](https://github.com/electron/fiddle) to create one and to publish it as a [GitHub gist](https://gist.github.com) and put the gist URL here. This is **the best way** to ensure this issue is triaged quickly.
+    placeholder: https://gist.github.com/...
+- type: textarea
+  attributes:
+    label: Additional Information
+    description: If your problem needs further explanation, or if the issue you're seeing cannot be reproduced in a gist, please add more information here.
--- a/.github/ISSUE_TEMPLATE/feature_request.yml
+++ b/.github/ISSUE_TEMPLATE/feature_request.yml
@@ -0,0 +1,40 @@
+name: Feature Request
+description: Suggest an idea for Electron
+title: "[Feature Request]: "
+labels: "enhancement :sparkles:"
+body:
+- type: checkboxes
+  attributes:
+    label: Preflight Checklist
+    description: Please ensure you've completed all of the following.
+    options:
+      - label: I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/master/CONTRIBUTING.md) for this project.
+        required: true
+      - label: I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/master/CODE_OF_CONDUCT.md) that this project adheres to.
+        required: true
+      - label: I have searched the [issue tracker](https://www.github.com/electron/electron/issues) for a feature request that matches the one I want to file, without success.
+        required: true
+- type: textarea
+  attributes:
+    label: Problem Description
+    description: Please add a clear and concise description of the problem you are seeking to solve with this feature request.
+  validations:
+    required: true
+- type: textarea
+  attributes:
+    label: Proposed Solution
+    description: Describe the solution you'd like in a clear and concise manner.
+  validations:
+    required: true
+- type: textarea
+  attributes:
+    label: Alternatives Considered
+    description: A clear and concise description of any alternative solutions or features you've considered. 
+  validations:
+    required: true
+- type: textarea
+  attributes:
+    label: Additional Information
+    description: Add any other context about the problem here.
+  validations:
+    required: false
--- a/.github/ISSUE_TEMPLATE/mac_app_store_private_api_rejection.md
+++ b/.github/ISSUE_TEMPLATE/mac_app_store_private_api_rejection.md
@@ -1,25 +0,0 @@
---
-name: Mac App Store Private API Rejection
-about: Your app was rejected from the Mac App Store for using private API's
-
---
-
-<!--  As an open source project with a dedicated but small maintainer team, it can sometimes take a long time for issues to be addressed so please be patient and we will get back to you as soon as we can.
-->
-
-### Preflight Checklist
-<!-- Please ensure you've completed the following steps by replacing [ ] with [x]-->
-
-* [ ] I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/master/CONTRIBUTING.md) for this project.
-* [ ] I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/master/CODE_OF_CONDUCT.md) that this project adheres to.
-
-### Issue Details
-
-* **Electron Version:** 
-  * <!-- (output of `node_modules/.bin/electron --version`) e.g. 4.0.3 -->
-
-### Rejection Email
-<!-- Paste the contents of your rejection email here, censoring any private information such as app names.-->
-
-### Additional Information
-<!-- Add any other context about the problem here. -->
--- a/.github/ISSUE_TEMPLATE/mac_app_store_private_api_rejection.yml
+++ b/.github/ISSUE_TEMPLATE/mac_app_store_private_api_rejection.yml
@@ -0,0 +1,30 @@
+name: Report Mac App Store Private API Rejection
+description: Your app was rejected from the Mac App Store for using private API's
+title: "[MAS Rejection]: "
+body:
+- type: checkboxes
+  attributes:
+    label: Preflight Checklist
+    description: Please ensure you've completed all of the following.
+    options:
+      - label: I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/master/CONTRIBUTING.md) for this project.
+        required: true
+      - label: I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/master/CODE_OF_CONDUCT.md) that this project adheres to.
+        required: true
+- type: input
+  attributes:
+    label: Electron Version
+    description: What version of Electron are you using?
+    placeholder: 12.0.0
+  validations:
+    required: true
+- type: textarea
+  attributes:
+    label: Rejection Email
+    description: Paste the contents of your rejection email here, censoring any private information such as app names.
+  validations:
+    required: true
+- type: textarea
+  attributes:
+    label: Additional Information
+    description: Add any other context about the problem here.
--- a/.github/config.yml
+++ b/.github/config.yml
@@ -36,5 +36,6 @@ authorizedUsers:
  - loc
  - MarshallOfSound
  - miniak
+  - mlaurencin
  - nornagon
  - zcbenz
--- a/.github/semantic.yml
+++ b/.github/semantic.yml
@@ -0,0 +1,2 @@
+# Always validate the PR title, and ignore the commits
+titleOnly: true
--- a/.gitignore
+++ b/.gitignore
@@ -17,24 +17,6 @@
 *.xcodeproj
 /.idea/
 /dist/
-/external_binaries/
-/out/
-/vendor/.gclient
-/vendor/debian_jessie_mips64-sysroot/
-/vendor/debian_stretch_amd64-sysroot/
-/vendor/debian_stretch_arm-sysroot/
-/vendor/debian_stretch_arm64-sysroot/
-/vendor/debian_stretch_i386-sysroot/
-/vendor/gcc-4.8.3-d197-n64-loongson/
-/vendor/readme-gcc483-loongson.txt
-/vendor/download/
-/vendor/llvm-build/
-/vendor/llvm/
-/vendor/npm/
-/vendor/python_26/
-/vendor/native_mksnapshot
-/vendor/LICENSES.chromium.html
-/vendor/pyyaml
 node_modules/
 SHASUMS256.txt
 **/package-lock.json
@@ -44,6 +26,7 @@ compile_commands.json
 # npm package
 /npm/dist
 /npm/path.txt
+/npm/checksums.json

 .npmrc

@@ -55,7 +38,7 @@ electron.d.ts
 spec/.hash

 # Eslint Cache
-.eslintcache
+.eslintcache*

 # Generated native addon files
 /spec-main/fixtures/native-addon/echo/build/
@@ -68,4 +51,6 @@ ts-gen
 .depshash-target

 # Used to accelerate builds after sync
-patches/mtime-cache.json
+patches/mtime-cache.json
+
+spec/fixtures/logo.png
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,6 +0,0 @@
-[submodule "vendor/requests"]
-	path = vendor/requests
-	url = https://github.com/kennethreitz/requests
-[submodule "vendor/boto"]
-	path = vendor/boto
-	url = https://github.com/boto/boto.git
--- a/.husky/.gitignore
+++ b/.husky/.gitignore
@@ -0,0 +1 @@
+_
--- a/.husky/pre-commit
+++ b/.husky/pre-commit
@@ -0,0 +1,4 @@
+#!/bin/sh
+. "$(dirname "$0")/_/husky.sh"
+
+npm run precommit
--- a/.husky/pre-push
+++ b/.husky/pre-push
@@ -0,0 +1,4 @@
+#!/bin/sh
+. "$(dirname "$0")/_/husky.sh"
+
+npm run prepack
--- a/.markdownlint.autofix.json
+++ b/.markdownlint.autofix.json
@@ -0,0 +1,6 @@
+{
+  "default": false,
+  "no-trailing-spaces": {
+    "br_spaces": 0
+  }
+}
--- a/.markdownlint.json
+++ b/.markdownlint.json
@@ -0,0 +1,29 @@
+{
+  "commands-show-output": false,
+  "first-line-h1": false,
+  "header-increment": false,
+  "line-length": {
+    "code_blocks": false,
+    "tables": false,
+    "stern": true,
+    "line_length": -1
+  },
+  "no-bare-urls": false,
+  "no-blanks-blockquote": false,
+  "no-duplicate-header": {
+    "allow_different_nesting": true
+  },
+  "no-emphasis-as-header": false,
+  "no-hard-tabs": {
+    "code_blocks": false
+  },
+  "no-space-in-emphasis": false,
+  "no-trailing-punctuation": false,
+  "no-trailing-spaces": {
+    "br_spaces": 0
+  },
+  "single-h1": false,
+  "no-inline-html": {
+    "allowed_elements": ["br"]
+  }
+}
--- a/.nvmrc
+++ b/.nvmrc
@@ -0,0 +1 @@
+14
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -1,6 +1,7 @@
 import("//build/config/locales.gni")
 import("//build/config/ui.gni")
 import("//build/config/win/manifest.gni")
+import("//components/os_crypt/features.gni")
 import("//components/spellcheck/spellcheck_build_features.gni")
 import("//content/public/app/mac_helpers.gni")
 import("//extensions/buildflags/buildflags.gni")
@@ -25,6 +26,8 @@ import("electron_paks.gni")
 import("filenames.auto.gni")
 import("filenames.gni")
 import("filenames.hunspell.gni")
+import("filenames.libcxx.gni")
+import("filenames.libcxxabi.gni")

 if (is_mac) {
  import("//build/config/mac/rules.gni")
@@ -32,6 +35,10 @@ if (is_mac) {
  import("//ui/gl/features.gni")
  import("//v8/gni/v8.gni")
  import("build/rules.gni")
+
+  assert(
+      mac_deployment_target == "10.11.0",
+      "Chromium has updated the mac_deployment_target, please update this assert, update the supported versions documentation (docs/tutorial/support.md) and flag this as a breaking change")
 }

 if (is_linux) {
@@ -265,21 +272,6 @@ if (is_linux) {
  }
 }

-source_set("manifests") {
-  sources = [
-    "//electron/shell/app/manifests.cc",
-    "//electron/shell/app/manifests.h",
-  ]
-
-  include_dirs = [ "//electron" ]
-
-  deps = [
-    "//electron/shell/common/api:mojo",
-    "//printing/buildflags",
-    "//services/service_manager/public/cpp",
-  ]
-}
-
 npm_action("electron_version_args") {
  script = "generate-version-json"

@@ -305,7 +297,7 @@ templated_file("electron_version_header") {
 action("electron_fuses") {
  script = "build/fuses/build.py"

-  inputs = [ "build/fuses/fuses.json" ]
+  inputs = [ "build/fuses/fuses.json5" ]

  outputs = [
    "$target_gen_dir/fuses.h",
@@ -315,6 +307,23 @@ action("electron_fuses") {
  args = rebase_path(outputs)
 }

+action("electron_generate_node_defines") {
+  script = "build/generate_node_defines.py"
+
+  inputs = [
+    "//third_party/electron_node/src/tracing/trace_event_common.h",
+    "//third_party/electron_node/src/tracing/trace_event.h",
+    "//third_party/electron_node/src/util.h",
+  ]
+
+  outputs = [
+    "$target_gen_dir/push_and_undef_node_defines.h",
+    "$target_gen_dir/pop_node_defines.h",
+  ]
+
+  args = [ rebase_path(target_gen_dir) ] + rebase_path(inputs)
+}
+
 source_set("electron_lib") {
  configs += [ "//v8:external_startup_data" ]
  configs += [ "//third_party/electron_node:node_internals" ]
@@ -326,9 +335,9 @@ source_set("electron_lib") {

  deps = [
    ":electron_fuses",
+    ":electron_generate_node_defines",
    ":electron_js2c",
    ":electron_version_header",
-    ":manifests",
    ":resources",
    "buildflags",
    "chromium_src:chrome",
@@ -345,22 +354,22 @@ source_set("electron_lib") {
    "//components/network_hints/common:mojo_bindings",
    "//components/network_hints/renderer",
    "//components/network_session_configurator/common",
+    "//components/os_crypt",
    "//components/pref_registry",
    "//components/prefs",
+    "//components/security_state/content",
    "//components/upload_list",
    "//components/user_prefs",
    "//components/viz/host",
    "//components/viz/service",
    "//content/public/browser",
    "//content/public/child",
-    "//content/public/common:service_names",
    "//content/public/gpu",
    "//content/public/renderer",
    "//content/public/utility",
    "//device/bluetooth",
    "//device/bluetooth/public/cpp",
    "//gin",
-    "//media/blink:blink",
    "//media/capture/mojom:video_capture",
    "//media/mojo/mojom",
    "//net:extras",
@@ -377,6 +386,7 @@ source_set("electron_lib") {
    "//skia",
    "//third_party/blink/public:blink",
    "//third_party/blink/public:blink_devtools_inspector_resources",
+    "//third_party/blink/public/platform/media",
    "//third_party/boringssl",
    "//third_party/electron_node:node_lib",
    "//third_party/inspector_protocol:crdtp",
@@ -419,7 +429,10 @@ source_set("electron_lib") {
  }

  if (!is_mas_build) {
-    deps += [ "//components/crash/core/app" ]
+    deps += [
+      "//components/crash/core/app",
+      "//components/crash/core/browser",
+    ]
  }

  sources = filenames.lib_sources
@@ -451,12 +464,16 @@ source_set("electron_lib") {
  }

  if (is_linux) {
-    deps += [ "//components/crash/content/browser" ]
+    deps += [
+      "//build/config/linux/gtk:gtkprint",
+      "//components/crash/content/browser",
+    ]
  }

  if (is_mac) {
    deps += [
      "//components/remote_cocoa/app_shim",
+      "//components/remote_cocoa/browser",
      "//content/common:mac_helpers",
      "//ui/accelerated_widget_mac",
    ]
@@ -508,6 +525,7 @@ source_set("electron_lib") {
    }
  }
  if (is_linux) {
+    libs = [ "xshmfence" ]
    deps += [
      ":libnotify_loader",
      "//build/config/linux/gtk",
@@ -521,10 +539,6 @@ source_set("electron_lib") {
    ]
    if (use_x11) {
      sources += filenames.lib_sources_linux_x11
-      deps += [
-        "//ui/gfx/x",
-        "//ui/gtk/x",
-      ]
    }
    configs += [ ":gio_unix" ]
    defines += [
@@ -628,6 +642,8 @@ source_set("electron_lib") {
    sources += [
      "shell/browser/printing/print_preview_message_handler.cc",
      "shell/browser/printing/print_preview_message_handler.h",
+      "shell/browser/printing/print_view_manager_electron.cc",
+      "shell/browser/printing/print_view_manager_electron.h",
      "shell/renderer/printing/print_render_frame_helper_delegate.cc",
      "shell/renderer/printing/print_render_frame_helper_delegate.h",
    ]
@@ -635,6 +651,9 @@ source_set("electron_lib") {
      "//chrome/services/printing/public/mojom",
      "//components/printing/common:mojo_interfaces",
    ]
+    if (is_mac) {
+      deps += [ "//chrome/services/mac_notifications/public/mojom" ]
+    }
  }

  if (enable_electron_extensions) {
@@ -648,6 +667,7 @@ source_set("electron_lib") {
      "//components/zoom",
      "//extensions/browser",
      "//extensions/browser:core_api_provider",
+      "//extensions/browser/updater",
      "//extensions/common",
      "//extensions/common:core_api_provider",
      "//extensions/renderer",
@@ -664,6 +684,7 @@ source_set("electron_lib") {
  }
  if (enable_pdf_viewer) {
    deps += [
+      "//chrome/browser/resources/pdf:resources",
      "//components/pdf/browser",
      "//components/pdf/renderer",
      "//pdf:pdf_ppapi",
@@ -683,6 +704,10 @@ source_set("electron_lib") {
    ]
    libs += [ "uxtheme.lib" ]
  }
+
+  if (allow_runtime_configurable_key_storage) {
+    defines += [ "ALLOW_RUNTIME_CONFIGURABLE_KEY_STORAGE" ]
+  }
 }

 electron_paks("packed_resources") {
@@ -1007,6 +1032,9 @@ if (is_mac) {
    deps = [
      ":electron_app_framework_bundle_data",
      ":electron_app_resources",
+      ":electron_fuses",
+      "//base",
+      "//electron/buildflags",
    ]
    if (is_mas_build) {
      deps += [ ":electron_login_helper_app" ]
@@ -1121,6 +1149,7 @@ if (is_mac) {
    ]

    data = []
+    data_deps = []

    data += [ "$root_out_dir/resources.pak" ]
    data += [ "$root_out_dir/chrome_100_percent.pak" ]
@@ -1139,6 +1168,10 @@ if (is_mac) {
      public_deps = [ "//tools/v8_context_snapshot:v8_context_snapshot" ]
    }

+    if (is_linux) {
+      data_deps += [ "//components/crash/core/app:chrome_crashpad_handler" ]
+    }
+
    if (is_win) {
      sources += [
        # TODO: we should be generating our .rc files more like how chrome does
@@ -1165,9 +1198,17 @@ if (is_mac) {
        "//build/config/win:delayloads",
      ]

-      if (target_cpu == "arm64") {
-        configs -= [ "//build/config/win:cfi_linker" ]
-        ldflags += [ "/guard:cf,nolongjmp" ]
+      if (current_cpu == "x86") {
+        # Set the initial stack size to 0.5MiB, instead of the 1.5MiB needed by
+        # Chrome's main thread. This saves significant memory on threads (like
+        # those in the Windows thread pool, and others) whose stack size we can
+        # only control through this setting. Because Chrome's main thread needs
+        # a minimum 1.5 MiB stack, the main thread (in 32-bit builds only) uses
+        # fibers to switch to a 1.5 MiB stack before running any other code.
+        ldflags += [ "/STACK:0x80000" ]
+      } else {
+        # Increase the initial stack size. The default is 1MB, this is 8MB.
+        ldflags += [ "/STACK:0x800000" ]
      }

      # This is to support renaming of electron.exe. node-gyp has hard-coded
@@ -1283,13 +1324,18 @@ template("dist_zip") {
                             "testonly",
                           ])
    flatten = false
+    flatten_relative_to = false
    if (defined(invoker.flatten)) {
      flatten = invoker.flatten
+      if (defined(invoker.flatten_relative_to)) {
+        flatten_relative_to = invoker.flatten_relative_to
+      }
    }
    args = rebase_path(outputs + [ _runtime_deps_file ], root_build_dir) + [
             target_cpu,
             target_os,
             "$flatten",
+             "$flatten_relative_to",
           ]
  }
 }
@@ -1380,6 +1426,44 @@ dist_zip("hunspell_dictionaries_zip") {
  outputs = [ "$root_build_dir/hunspell_dictionaries.zip" ]
 }

+copy("libcxx_headers") {
+  sources = libcxx_headers + libcxx_licenses +
+            [ "//buildtools/third_party/libc++/__config_site" ]
+  outputs = [ "$target_gen_dir/electron_libcxx_include/{{source_root_relative_dir}}/{{source_file_part}}" ]
+}
+
+dist_zip("libcxx_headers_zip") {
+  data_deps = [ ":libcxx_headers" ]
+  flatten = true
+  flatten_relative_to = rebase_path(
+          "$target_gen_dir/electron_libcxx_include/buildtools/third_party/libc++/trunk",
+          "$root_out_dir")
+
+  outputs = [ "$root_build_dir/libcxx_headers.zip" ]
+}
+
+copy("libcxxabi_headers") {
+  sources = libcxxabi_headers + libcxxabi_licenses
+  outputs = [ "$target_gen_dir/electron_libcxxabi_include/{{source_root_relative_dir}}/{{source_file_part}}" ]
+}
+
+dist_zip("libcxxabi_headers_zip") {
+  data_deps = [ ":libcxxabi_headers" ]
+  flatten = true
+  flatten_relative_to = rebase_path(
+          "$target_gen_dir/electron_libcxxabi_include/buildtools/third_party/libc++abi/trunk",
+          "$root_out_dir")
+
+  outputs = [ "$root_build_dir/libcxxabi_headers.zip" ]
+}
+
+action("libcxx_objects_zip") {
+  deps = [ "//buildtools/third_party/libc++" ]
+  script = "build/zip_libcxx.py"
+  outputs = [ "$root_build_dir/libcxx_objects.zip" ]
+  args = rebase_path(outputs)
+}
+
 group("electron") {
  public_deps = [ ":electron_app" ]
 }
--- a/CODE_OF_CONDUCT.md
+++ b/CODE_OF_CONDUCT.md
@@ -2,8 +2,8 @@

 As a member project of the OpenJS Foundation, Electron uses [Contributor Covenant v2.0](https://contributor-covenant.org/version/2/0/code_of_conduct) as their code of conduct. The full text is included [below](#contributor-covenant-code-of-conduct) in English, and translations are available from the Contributor Covenant organisation:

- [contributor-covenant.org/translations](https://www.contributor-covenant.org/translations)
- [github.com/ContributorCovenant](https://github.com/ContributorCovenant/contributor_covenant/tree/release/content/version/2/0)
+* [contributor-covenant.org/translations](https://www.contributor-covenant.org/translations)
+* [github.com/ContributorCovenant](https://github.com/ContributorCovenant/contributor_covenant/tree/release/content/version/2/0)

 ## Contributor Covenant Code of Conduct

--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -22,14 +22,14 @@ Issues are created [here](https://github.com/electron/electron/issues/new).

 ### Issue Closure

-Bug reports will be closed if the issue has been inactive and the latest affected version no longer receives support. At the moment, Electron maintains its three latest major versions, with a new major version being released every 12 weeks. (For more information on Electron's release cadence, see [this blog post](https://electronjs.org/blog/12-week-cadence).)
+Bug reports will be closed if the issue has been inactive and the latest affected version no longer receives support. At the moment, Electron maintains its three latest major versions, with a new major version being released every 8 weeks. (For more information on Electron's release cadence, see [this blog post](https://electronjs.org/blog/8-week-cadence).)

 _If an issue has been closed and you still feel it's relevant, feel free to ping a maintainer or add a comment!_

 ### Languages

 We accept issues in *any* language.
-When an issue is posted in a language besides English, it is acceptable and encouraged to post an English-translated copy as a reply. 
+When an issue is posted in a language besides English, it is acceptable and encouraged to post an English-translated copy as a reply.
 Anyone may post the translated reply.
 In most cases, a quick pass through translation software is sufficient.
 Having the original text _as well as_ the translation can help mitigate translation errors.
@@ -66,5 +66,5 @@ See [Coding Style](https://electronjs.org/docs/development/coding-style) for inf

 ## Further Reading

-For more in-depth guides on developing Electron, see 
+For more in-depth guides on developing Electron, see
 [/docs/development](/docs/development/README.md)
--- a/50
+++ b/50
@@ -10,25 +10,27 @@ gclient_gn_args = [
  'checkout_openxr',
  'checkout_google_benchmark',
  'mac_xcode_version',
+  'generate_location_tags',
 ]

 vars = {
  'chromium_version':
-    '3a75ada69d1ac06d6903a2c981ab90a8162f1ba0',
+    '95.0.4629.0',
  'node_version':
-    'v14.15.1',
+    'v16.8.0',
  'nan_version':
-    '2c4ee8a32a299eada3cd6e468bbd0a473bfea96d',
+    # The following commit hash of NAN is v2.14.2 with *only* changes to the
+    # test suite. This should be updated to a specific tag when one becomes
+    # available.
+    '65b32af46e9d7fab2e4ff657751205b3865f4920',
  'squirrel.mac_version':
-    'a3a5b3f03b824441c014893b18f99a103b2603e9',
+    '0e5d146ba13101a1302d59ea6e6e0b3cace4ae38',

  'pyyaml_version': '3.12',
-  'requests_version': 'e4d59bedfd3c7f4f254f4f5d036587bcd8152458',

  'chromium_git': 'https://chromium.googlesource.com',
  'electron_git': 'https://github.com/electron',
  'nodejs_git': 'https://github.com/nodejs',
-  'requests_git': 'https://github.com/kennethreitz',
  'yaml_git': 'https://github.com/yaml',
  'squirrel_git': 'https://github.com/Squirrel',

@@ -50,18 +52,15 @@ vars = {
  # It's only needed to parse the native tests configurations.
  'checkout_pyyaml': False,

-  # Python "requests" module is used for releases only.
-  'checkout_requests': False,
+  'use_rts': False,

  'mac_xcode_version': 'default',

+  'generate_location_tags': False,
+
  # To allow running hooks without parsing the DEPS tree
  'process_deps': True,

-  # It is always needed for normal Electron builds,
-  # but might be impossible for custom in-house builds.
-  'download_external_binaries': True,
-
  'checkout_nacl':
    False,
  'checkout_libaom':
@@ -95,14 +94,10 @@ deps = {
    'url': (Var("nodejs_git")) + '/node.git@' + (Var("node_version")),
    'condition': 'checkout_node and process_deps',
  },
-  'src/electron/vendor/pyyaml': {
+  'src/third_party/pyyaml': {
    'url': (Var("yaml_git")) + '/pyyaml.git@' + (Var("pyyaml_version")),
    'condition': 'checkout_pyyaml and process_deps',
  },
-  'src/electron/vendor/requests': {
-    'url': Var('requests_git') + '/requests.git' + '@' +  Var('requests_version'),
-    'condition': 'checkout_requests and process_deps',
-  },
  'src/third_party/squirrel.mac': {
    'url': Var("squirrel_git") + '/Squirrel.Mac.git@' + Var("squirrel.mac_version"),
    'condition': 'process_deps',
@@ -157,32 +152,13 @@ hooks = [
      'src/electron/patches/mtime-cache.json',
    ],
  },
-  {
-    'name': 'electron_external_binaries',
-    'pattern': 'src/electron/script/update-external-binaries.py',
-    'condition': 'download_external_binaries',
-    'action': [
-      'python3',
-      'src/electron/script/update-external-binaries.py',
-    ],
-  },
  {
    'name': 'electron_npm_deps',
    'pattern': 'src/electron/package.json',
    'action': [
      'python3',
      '-c',
-      'import os, subprocess; os.chdir(os.path.join("src", "electron")); subprocess.check_call(["python", "script/lib/npx.py", "yarn@' + (Var("yarn_version")) + '", "install", "--frozen-lockfile"]);',
-    ],
-  },
-  {
-    'name': 'setup_requests',
-    'pattern': 'src/electron',
-    'condition': 'checkout_requests and process_deps',
-    'action': [
-      'python3',
-      '-c',
-      'import os, subprocess; os.chdir(os.path.join("src", "electron", "vendor", "requests")); subprocess.check_call(["python", "setup.py", "build"]);',
+      'import os, subprocess; os.chdir(os.path.join("src", "electron")); subprocess.check_call(["python3", "script/lib/npx.py", "yarn@' + (Var("yarn_version")) + '", "install", "--frozen-lockfile"]);',
    ],
  },
 ]
--- a/2
+++ b/2
@@ -1 +1 @@
-12.0.0-nightly.20201118
+16.0.0-nightly.20210901
--- a/1
+++ b/1
@@ -1,3 +1,4 @@
+Copyright (c) Electron contributors
 Copyright (c) 2013-2020 GitHub Inc.

 Permission is hereby granted, free of charge, to any person obtaining
--- a/README.md
+++ b/README.md
@@ -1,12 +1,10 @@
 [![Electron Logo](https://electronjs.org/images/electron-logo.svg)](https://electronjs.org)

-
 [![CircleCI Build Status](https://circleci.com/gh/electron/electron/tree/master.svg?style=shield)](https://circleci.com/gh/electron/electron/tree/master)
 [![AppVeyor Build Status](https://ci.appveyor.com/api/projects/status/4lggi9dpjc1qob7k/branch/master?svg=true)](https://ci.appveyor.com/project/electron-bot/electron-ljo26/branch/master)
-[![devDependency Status](https://david-dm.org/electron/electron/dev-status.svg)](https://david-dm.org/electron/electron?type=dev)
 [![Electron Discord Invite](https://img.shields.io/discord/745037351163527189?color=%237289DA&label=chat&logo=discord&logoColor=white)](https://discord.com/invite/electron)

-:memo: Available Translations: 🇨🇳 🇹🇼 🇧🇷 🇪🇸 🇰🇷 🇯🇵 🇷🇺 🇫🇷 🇹🇭 🇳🇱 🇹🇷 🇮🇩 🇺🇦 🇨🇿 🇮🇹 🇵🇱.
+:memo: Available Translations: 🇨🇳 🇧🇷 🇪🇸 🇯🇵 🇷🇺 🇫🇷 🇺🇸 🇩🇪.
 View these docs in other languages at [electron/i18n](https://github.com/electron/i18n/tree/master/content/).

 The Electron framework lets you write cross-platform desktop applications
@@ -29,15 +27,12 @@ The preferred method is to install Electron as a development dependency in your
 app:

 ```sh
-npm install electron --save-dev [--save-exact]
+npm install electron --save-dev
 ```

-The `--save-exact` flag is recommended for Electron prior to version 2, as it does not follow semantic
-versioning. As of version 2.0.0, Electron follows semver, so you don't need `--save-exact` flag. For info on how to manage Electron versions in your apps, see
-[Electron versioning](docs/tutorial/electron-versioning.md).
-
 For more installation options and troubleshooting tips, see
-[installation](docs/tutorial/installation.md).
+[installation](docs/tutorial/installation.md). For info on how to manage Electron versions in your apps, see
+[Electron versioning](docs/tutorial/electron-versioning.md).

 ## Quick start & Electron Fiddle

@@ -65,7 +60,6 @@ npm start
 - [electronjs.org/community#boilerplates](https://electronjs.org/community#boilerplates) - Sample starter apps created by the community
 - [electron/simple-samples](https://github.com/electron/simple-samples) - Small applications with ideas for taking them further
 - [electron/electron-api-demos](https://github.com/electron/electron-api-demos) - An Electron app that teaches you how to use Electron
- [hokein/electron-sample-apps](https://github.com/hokein/electron-sample-apps) - Small demo apps for the various Electron APIs

 ## Programmatic usage

--- a/SECURITY.md
+++ b/SECURITY.md
@@ -13,4 +13,5 @@ Report security bugs in third-party modules to the person or team maintaining th
 For context on Electron's security notification process, please see the [Notifications](https://github.com/electron/governance/blob/master/wg-security/membership-and-notifications.md#notifications) section of the Security WG's [Membership and Notifications](https://github.com/electron/governance/blob/master/wg-security/membership-and-notifications.md) Governance document.

 ## Learning More About Security
+
 To learn more about securing an Electron application, please see the [security tutorial](docs/tutorial/security.md).
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -36,6 +36,7 @@ environment:
  ELECTRON_ENABLE_STACK_DUMPING: 1
  MOCHA_REPORTER: mocha-multi-reporters
  MOCHA_MULTI_REPORTERS: mocha-appveyor-reporter, tap
+  GOMA_FALLBACK_ON_AUTH_FAILURE: true
 notifications:
  - provider: Webhook
    url: https://electron-mission-control.herokuapp.com/rest/appveyor-hook
@@ -67,9 +68,7 @@ build_script:
  - ps: Move-Item $env:APPVEYOR_BUILD_FOLDER -Destination src\electron
  - ps: $env:CHROMIUM_BUILDTOOLS_PATH="$pwd\src\buildtools"
  - ps: >-
-      if ($env:GN_CONFIG -eq 'release') {
-        $env:GCLIENT_EXTRA_ARGS="$env:GCLIENT_EXTRA_ARGS --custom-var=checkout_requests=True"
-      } else {
+      if ($env:GN_CONFIG -ne 'release') {
        $env:NINJA_STATUS="[%r processes, %f/%t @ %o/s : %es] "
      }
  - >-
@@ -98,8 +97,6 @@ build_script:
              $env:SAVE_GCLIENT_SRC="true"
            }
          } else {
-            # update external binaries
-            python src/electron/script/update-external-binaries.py
            # update angle
            cd src\third_party\angle
            git remote set-url origin  https://chromium.googlesource.com/angle/angle.git
@@ -115,7 +112,7 @@ build_script:
          }
        }
      }
-  - if "%RUN_GCLIENT_SYNC%"=="true" ( gclient sync --with_branch_heads --with_tags --ignore_locks)
+  - if "%RUN_GCLIENT_SYNC%"=="true" ( gclient sync )
  - ps: >-
      if ($env:SAVE_GCLIENT_SRC -eq 'true') {
        # archive current source for future use 
@@ -141,7 +138,8 @@ build_script:
  - cd build-tools
  - npm install
  - mkdir third_party
-  - node -e "require('./src/utils/goma.js').downloadAndPrepare()"
+  - ps: >-
+      node -e "require('./src/utils/goma.js').downloadAndPrepare({ gomaOneForAll: true })"
  - ps: $env:GN_GOMA_FILE = node -e "console.log(require('./src/utils/goma.js').gnFilePath)"
  - ps: $env:LOCAL_GOMA_DIR = node -e "console.log(require('./src/utils/goma.js').dir)"
  - cd ..
@@ -151,7 +149,6 @@ build_script:
  - gn gen out/Default "--args=import(\"%BUILD_CONFIG_PATH%\") import(\"%GN_GOMA_FILE%\") %GN_EXTRA_ARGS% "
  - gn check out/Default //electron:electron_lib
  - gn check out/Default //electron:electron_app
-  - gn check out/Default //electron:manifests
  - gn check out/Default //electron/shell/common/api:mojo
  - if DEFINED GN_GOMA_FILE (ninja -j 300 -C out/Default electron:electron_app) else (ninja -C out/Default electron:electron_app)
  - if "%GN_CONFIG%"=="testing" ( python C:\depot_tools\post_build_ninja_summary.py -C out\Default )
--- a/azure-pipelines-arm.yml
+++ b/azure-pipelines-arm.yml
@@ -17,6 +17,7 @@ steps:
    node script/download-circleci-artifacts.js --buildNum=$CIRCLE_BUILD_NUM --name=dist.zip --dest=$ZIP_DEST
    cd $ZIP_DEST
    unzip -o dist.zip
+    xattr -cr Electron.app    
  displayName: 'Download and unzip dist files for test'
  env:
    CIRCLE_TOKEN: $(CIRCLECI_TOKEN)
@@ -48,38 +49,44 @@ steps:
   mkdir -p $CROSS_ARCH_SNAPSHOTS
   cd src/electron
   node script/download-circleci-artifacts.js --buildNum=$CIRCLE_BUILD_NUM --name=cross-arch-snapshots/snapshot_blob.bin --dest=$CROSS_ARCH_SNAPSHOTS
-   node script/download-circleci-artifacts.js --buildNum=$CIRCLE_BUILD_NUM --name=cross-arch-snapshots/v8_context_snapshot.bin --dest=$CROSS_ARCH_SNAPSHOTS
+   node script/download-circleci-artifacts.js --buildNum=$CIRCLE_BUILD_NUM --name=cross-arch-snapshots/v8_context_snapshot.arm64.bin --dest=$CROSS_ARCH_SNAPSHOTS
  displayName: 'Download cross arch snapshot files'
  env:
    CIRCLE_TOKEN: $(CIRCLECI_TOKEN)

- bash: |
-   export NATIVE_UNITTESTS_DEST=$PWD/src/out/Default
-   cd src/electron
-   node script/download-circleci-artifacts.js --buildNum=$CIRCLE_BUILD_NUM --name=shell_browser_ui_unittests --dest=$NATIVE_UNITTESTS_DEST
-   chmod +x $NATIVE_UNITTESTS_DEST/shell_browser_ui_unittests
-  displayName: 'Download native unittest executables'
-  env:
-    CIRCLE_TOKEN: $(CIRCLECI_TOKEN)
-
 - bash: |
    cd src
    export ELECTRON_OUT_DIR=Default
-    set npm_config_arch=arm64
-    (cd electron && node script/yarn test -- --enable-logging)
-  displayName: 'Run Electron tests'
+    export npm_config_arch=arm64
+    (cd electron && node script/yarn test --enable-logging --runners main)
+  displayName: 'Run Electron main tests'
  timeoutInMinutes: 20
  env:
    ELECTRON_DISABLE_SECURITY_WARNINGS: 1
    IGNORE_YARN_INSTALL_ERROR: 1
    ELECTRON_TEST_RESULTS_DIR: junit

+- bash: |
+    cd src
+    export ELECTRON_OUT_DIR=Default
+    export npm_config_arch=arm64
+    (cd electron && node script/yarn test --enable-logging --runners remote)
+  displayName: 'Run Electron remote tests'
+  timeoutInMinutes: 20
+  condition: succeededOrFailed()
+  env:
+    ELECTRON_DISABLE_SECURITY_WARNINGS: 1
+    IGNORE_YARN_INSTALL_ERROR: 1
+    ELECTRON_TEST_RESULTS_DIR: junit
+
 - bash: |
    cd src
    python electron/script/verify-ffmpeg.py --source-root "$PWD" --build-dir out/Default --ffmpeg-path out/ffmpeg
  displayName: Verify non proprietary ffmpeg
  timeoutInMinutes: 5
  condition: succeededOrFailed()
+  env:
+    TARGET_ARCH: arm64

 - bash: |
    cd src
@@ -98,6 +105,16 @@ steps:

  condition: succeededOrFailed()

+- bash: killall Electron || echo "No Electron processes left running"
+  displayName: 'Kill processes left running from last test run'
+  condition: always()
+
+- bash: |
+    rm -rf ~/Library/Application\ Support/Electron*
+    rm -rf ~/Library/Application\ Support/electron*
+  displayName: 'Delete user app data directories'
+  condition: always()
+
 - task: mspremier.PostBuildCleanup.PostBuildCleanup-task.PostBuildCleanup@3
  displayName: 'Clean Agent Directories'

--- a/azure-pipelines-woa.yml
+++ b/azure-pipelines-woa.yml
@@ -53,6 +53,22 @@ steps:
  env:
    APPVEYOR_TOKEN: $(APPVEYOR_TOKEN)

+- powershell: |
+    try {
+      $localArtifactPath = "$pwd\src\pdb.zip"
+      $serverArtifactPath = "$env:APPVEYOR_URL/buildjobs/$env:APPVEYOR_JOB_ID/artifacts/pdb.zip"
+      Invoke-RestMethod -Method Get -Uri $serverArtifactPath -OutFile $localArtifactPath -Headers @{ "Authorization" = "Bearer $env:APPVEYOR_TOKEN" }
+      cd src
+      & "${env:ProgramFiles(x86)}\7-Zip\7z.exe" x -y pdb.zip
+    } catch {
+      Write-Host "There was an exception encountered while downloading pdb files:" $_.Exception.Message
+    } finally {
+      $global:LASTEXITCODE = 0
+    }
+  displayName: 'Download pdb files for detailed stacktraces'
+  env:
+    APPVEYOR_TOKEN: $(APPVEYOR_TOKEN)
+
 - powershell: |
    New-Item src\out\Default\gen\node_headers\Release -Type directory
    Copy-Item -path src\out\Default\electron.lib -destination src\out\Default\gen\node_headers\Release\node.lib
@@ -63,15 +79,30 @@ steps:
    set npm_config_nodedir=%cd%\out\Default\gen\node_headers
    set npm_config_arch=arm64
    cd electron
-    # CalculateNativeWinOcclusion is disabled due to https://bugs.chromium.org/p/chromium/issues/detail?id=1139022
-    node script/yarn test -- --enable-logging --verbose --disable-features=CalculateNativeWinOcclusion
-  displayName: 'Run Electron tests'
+    node script/yarn test --runners=main --runTestFilesSeperately --enable-logging --disable-features=CalculateNativeWinOcclusion
+  displayName: 'Run Electron Main process tests'
+  env:
+    ELECTRON_ENABLE_STACK_DUMPING: true
+    ELECTRON_OUT_DIR: Default
+    IGNORE_YARN_INSTALL_ERROR: 1
+    ELECTRON_TEST_RESULTS_DIR: junit
+    MOCHA_MULTI_REPORTERS: 'mocha-junit-reporter, tap'
+    MOCHA_REPORTER: mocha-multi-reporters
+
+- script: |
+    cd src
+    set npm_config_nodedir=%cd%\out\Default\gen\node_headers
+    set npm_config_arch=arm64
+    cd electron
+    node script/yarn test --runners=remote --enable-logging --disable-features=CalculateNativeWinOcclusion
+  displayName: 'Run Electron Remote based tests'
  env:
    ELECTRON_OUT_DIR: Default
    IGNORE_YARN_INSTALL_ERROR: 1
    ELECTRON_TEST_RESULTS_DIR: junit
    MOCHA_MULTI_REPORTERS: 'mocha-junit-reporter, tap'
    MOCHA_REPORTER: mocha-multi-reporters
+  condition: always()    

 - task: PublishTestResults@2
  displayName: 'Publish Test Results'
@@ -93,6 +124,6 @@ steps:
  condition: always()

 - powershell: |
-    Remove-Item -path $env:APPDATA/Electron* -Recurse
+    Remove-Item -path $env:APPDATA/Electron* -Recurse -Force -ErrorAction Ignore
  displayName: 'Delete user app data directories'
  condition: always()
--- a/build/args/all.gn
+++ b/build/args/all.gn
@@ -2,7 +2,7 @@ is_electron_build = true
 root_extra_deps = [ "//electron" ]

 # Registry of NMVs --> https://github.com/nodejs/node/blob/master/doc/abi_version_registry.json
-node_module_version = 87
+node_module_version = 89

 v8_promise_internal_field_count = 1
 v8_typed_array_max_size_in_heap = 0
@@ -19,4 +19,21 @@ enable_basic_printing = true
 angle_enable_vulkan_validation_layers = false
 dawn_enable_vulkan_validation_layers = false

+# This breaks native node modules
+libcxx_abi_unstable = false
+
+# These are disabled because they cause the zip manifest to differ between
+# testing and release builds.
+# See https://chromium-review.googlesource.com/c/chromium/src/+/2774898.
+enable_pseudolocales = false
+
 is_cfi = false
+
+# Make application name configurable at runtime for cookie crypto
+allow_runtime_configurable_key_storage = true
+
+enable_cet_shadow_stack = false
+
+# TODO(deepak1556): remove once https://bugs.chromium.org/p/chromium/issues/detail?id=1241610
+# is fixed.
+enable_blink_heap_use_v8_oilpan = false
--- a/build/dump_syms.py
+++ b/build/dump_syms.py
@@ -39,7 +39,7 @@ def main(dump_syms, binary, out_dir, stamp_file, dsym_file=None):
    args += ["-g", dsym_file]
  args += [binary]

-  symbol_data = subprocess.check_output(args)
+  symbol_data = subprocess.check_output(args).decode(sys.stdout.encoding)
  symbol_path = os.path.join(out_dir, get_symbol_path(symbol_data))
  mkdir_p(os.path.dirname(symbol_path))

--- a/build/fuses/build.py
+++ b/build/fuses/build.py
@@ -1,5 +1,6 @@
 #!/usr/bin/env python3

+from collections import OrderedDict
 import json
 import os
 import sys
@@ -49,8 +50,8 @@ const volatile char kFuseWire[] = { /* sentinel */ {sentinel}, /* fuse_version *
 }
 """

-with open(os.path.join(dir_path, "fuses.json"), 'r') as f:
-  fuse_defaults = json.load(f)
+with open(os.path.join(dir_path, "fuses.json5"), 'r') as f:
+  fuse_defaults = json.loads(''.join(line for line in f.readlines() if not line.strip()[0] == "/"), object_pairs_hook=OrderedDict)

 fuse_version = fuse_defaults['_version']
 del fuse_defaults['_version']
--- a/build/fuses/fuses.json5
+++ b/build/fuses/fuses.json5
@@ -2,5 +2,8 @@
  "_comment": "Modifying the fuse schema in any breaking way should result in the _version prop being incremented.  NEVER remove a fuse or change its meaning, instead mark it as removed with 'r'",
  "_schema": "0 == off, 1 == on, r == removed fuse",
  "_version": 1,
-  "run_as_node": "1"
+  "run_as_node": "1",
+  "cookie_encryption": "0",
+  "node_options": "1",
+  "node_cli_inspect": "1"
 }
--- a/build/generate_node_defines.py
+++ b/build/generate_node_defines.py
@@ -0,0 +1,34 @@
+import os
+import re
+import sys
+
+DEFINE_EXTRACT_REGEX = re.compile('^ *# *define (\w*)', re.MULTILINE)
+
+def main(outDir, headers):
+  defines = []
+  for filename in headers:
+    with open(filename, 'r') as f:
+      content = f.read()
+      defines += read_defines(content)
+
+  push_and_undef = ''
+  for define in defines:
+    push_and_undef += '#pragma push_macro("%s")\n' % define
+    push_and_undef += '#undef %s\n' % define
+  with open(os.path.join(outDir, 'push_and_undef_node_defines.h'), 'w') as o:
+    o.write(push_and_undef)
+
+  pop = ''
+  for define in defines:
+    pop += '#pragma pop_macro("%s")\n' % define
+  with open(os.path.join(outDir, 'pop_node_defines.h'), 'w') as o:
+    o.write(pop)
+
+def read_defines(content):
+  defines = []
+  for match in DEFINE_EXTRACT_REGEX.finditer(content):
+    defines.append(match.group(1))
+  return defines
+
+if __name__ == '__main__':
+  main(sys.argv[1], sys.argv[2:])
--- a/build/install-build-deps.sh
+++ b/build/install-build-deps.sh
@@ -1,653 +0,0 @@
-#!/bin/bash -e
-# Copyright (c) 2012 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-# Script to install everything needed to build chromium (well, ideally, anyway)
-# See https://chromium.googlesource.com/chromium/src/+/master/docs/linux_build_instructions.md
-usage() {
-  echo "Usage: $0 [--options]"
-  echo "Options:"
-  echo "--[no-]syms: enable or disable installation of debugging symbols"
-  echo "--lib32: enable installation of 32-bit libraries, e.g. for V8 snapshot"
-  echo "--[no-]arm: enable or disable installation of arm cross toolchain"
-  echo "--[no-]chromeos-fonts: enable or disable installation of Chrome OS"\
-       "fonts"
-  echo "--[no-]nacl: enable or disable installation of prerequisites for"\
-       "building standalone NaCl and all its toolchains"
-  echo "--[no-]backwards-compatible: enable or disable installation of packages
-        that are no longer currently needed and have been removed from this
-        script.  Useful for bisection."
-  echo "--no-prompt: silently select standard options/defaults"
-  echo "--quick-check: quickly try to determine if dependencies are installed"
-  echo "               (this avoids interactive prompts and sudo commands,"
-  echo "               so might not be 100% accurate)"
-  echo "--unsupported: attempt installation even on unsupported systems"
-  echo "Script will prompt interactively if options not given."
-  exit 1
-}
-# Checks whether a particular package is available in the repos.
-# USAGE: $ package_exists <package name>
-package_exists() {
-  # 'apt-cache search' takes a regex string, so eg. the +'s in packages like
-  # "libstdc++" need to be escaped.
-  local escaped="$(echo $1 | sed 's/[\~\+\.\:-]/\\&/g')"
-  [ ! -z "$(apt-cache search --names-only "${escaped}" | \
-            awk '$1 == "'$1'" { print $1; }')" ]
-}
-# These default to on because (some) bots need them and it keeps things
-# simple for the bot setup if all bots just run the script in its default
-# mode.  Developers who don't want stuff they don't need installed on their
-# own workstations can pass --no-arm --no-nacl when running the script.
-do_inst_arm=1
-do_inst_nacl=1
-while [ "$1" != "" ]
-do
-  case "$1" in
-  --syms)                    do_inst_syms=1;;
-  --no-syms)                 do_inst_syms=0;;
-  --lib32)                   do_inst_lib32=1;;
-  --arm)                     do_inst_arm=1;;
-  --no-arm)                  do_inst_arm=0;;
-  --chromeos-fonts)          do_inst_chromeos_fonts=1;;
-  --no-chromeos-fonts)       do_inst_chromeos_fonts=0;;
-  --nacl)                    do_inst_nacl=1;;
-  --no-nacl)                 do_inst_nacl=0;;
-  --backwards-compatible)    do_inst_backwards_compatible=1;;
-  --no-backwards-compatible) do_inst_backwards_compatible=0;;
-  --add-cross-tool-repo)     add_cross_tool_repo=1;;
-  --no-prompt)               do_default=1
-                             do_quietly="-qq --assume-yes"
-    ;;
-  --quick-check)             do_quick_check=1;;
-  --unsupported)             do_unsupported=1;;
-  *) usage;;
-  esac
-  shift
-done
-if [ "$do_inst_arm" = "1" ]; then
-  do_inst_lib32=1
-fi
-# Check for lsb_release command in $PATH
-if ! which lsb_release > /dev/null; then
-  echo "ERROR: lsb_release not found in \$PATH" >&2
-  exit 1;
-fi
-distro_codename=$(lsb_release --codename --short)
-distro_id=$(lsb_release --id --short)
-supported_codenames="(trusty|xenial|artful|bionic)"
-supported_ids="(Debian)"
-if [ 0 -eq "${do_unsupported-0}" ] && [ 0 -eq "${do_quick_check-0}" ] ; then
-  if [[ ! $distro_codename =~ $supported_codenames &&
-        ! $distro_id =~ $supported_ids ]]; then
-    echo -e "ERROR: The only supported distros are\n" \
-      "\tUbuntu 14.04 LTS (trusty)\n" \
-      "\tUbuntu 16.04 LTS (xenial)\n" \
-      "\tUbuntu 17.10 (artful)\n" \
-      "\tUbuntu 18.04 LTS (bionic)\n" \
-      "\tDebian 8 (jessie) or later" >&2
-    exit 1
-  fi
-  if ! uname -m | egrep -q "i686|x86_64"; then
-    echo "Only x86 architectures are currently supported" >&2
-    exit
-  fi
-fi
-if [ "x$(id -u)" != x0 ] && [ 0 -eq "${do_quick_check-0}" ]; then
-  echo "Running as non-root user."
-  echo "You might have to enter your password one or more times for 'sudo'."
-  echo
-fi
-# Packages needed for chromeos only
-chromeos_dev_list="libbluetooth-dev libxkbcommon-dev"
-if package_exists realpath; then
-  chromeos_dev_list="${chromeos_dev_list} realpath"
-fi
-# Packages needed for development
-dev_list="\
-  binutils
-  bison
-  bzip2
-  cdbs
-  curl
-  dbus-x11
-  dpkg-dev
-  elfutils
-  devscripts
-  fakeroot
-  flex
-  g++
-  git-core
-  git-svn
-  gperf
-  libappindicator3-dev
-  libasound2-dev
-  libatspi2.0-dev
-  libbrlapi-dev
-  libbz2-dev
-  libcairo2-dev
-  libcap-dev
-  libcups2-dev
-  libcurl4-gnutls-dev
-  libdrm-dev
-  libelf-dev
-  libffi-dev
-  libgbm-dev
-  libglib2.0-dev
-  libglu1-mesa-dev
-  libgnome-keyring-dev
-  libgtk-3-dev
-  libkrb5-dev
-  libnspr4-dev
-  libnss3-dev
-  libpam0g-dev
-  libpci-dev
-  libpulse-dev
-  libsctp-dev
-  libspeechd-dev
-  libsqlite3-dev
-  libssl-dev
-  libudev-dev
-  libwww-perl
-  libxslt1-dev
-  libxss-dev
-  libxt-dev
-  libxtst-dev
-  locales
-  openbox
-  p7zip
-  patch
-  perl
-  pkg-config
-  python
-  python-cherrypy3
-  python-crypto
-  python-dev
-  python-numpy
-  python-opencv
-  python-openssl
-  python-psutil
-  python-yaml
-  rpm
-  ruby
-  subversion
-  uuid-dev
-  wdiff
-  x11-utils
-  xcompmgr
-  xz-utils
-  zip
-  $chromeos_dev_list
-"
-# 64-bit systems need a minimum set of 32-bit compat packages for the pre-built
-# NaCl binaries.
-if file -L /sbin/init | grep -q 'ELF 64-bit'; then
-  dev_list="${dev_list} libc6-i386 lib32gcc1 lib32stdc++6"
-fi
-# Run-time libraries required by chromeos only
-chromeos_lib_list="libpulse0 libbz2-1.0"
-# List of required run-time libraries
-common_lib_list="\
-  libappindicator3-1
-  libasound2
-  libatk1.0-0
-  libatspi2.0-0
-  libc6
-  libcairo2
-  libcap2
-  libcups2
-  libexpat1
-  libffi6
-  libfontconfig1
-  libfreetype6
-  libglib2.0-0
-  libgnome-keyring0
-  libgtk-3-0
-  libpam0g
-  libpango1.0-0
-  libpci3
-  libpcre3
-  libpixman-1-0
-  libspeechd2
-  libstdc++6
-  libsqlite3-0
-  libuuid1
-  libwayland-egl1-mesa
-  libx11-6
-  libx11-xcb1
-  libxau6
-  libxcb1
-  libxcomposite1
-  libxcursor1
-  libxdamage1
-  libxdmcp6
-  libxext6
-  libxfixes3
-  libxi6
-  libxinerama1
-  libxrandr2
-  libxrender1
-  libxtst6
-  zlib1g
-"
-# Full list of required run-time libraries
-lib_list="\
-  $common_lib_list
-  $chromeos_lib_list
-"
-# 32-bit libraries needed e.g. to compile V8 snapshot for Android or armhf
-lib32_list="linux-libc-dev:i386 libpci3:i386"
-# 32-bit libraries needed for a 32-bit build
-lib32_list="$lib32_list libx11-xcb1:i386"
-# Packages that have been removed from this script.  Regardless of configuration
-# or options passed to this script, whenever a package is removed, it should be
-# added here.
-backwards_compatible_list="\
-  7za
-  fonts-indic
-  fonts-ipafont
-  fonts-stix
-  fonts-thai-tlwg
-  fonts-tlwg-garuda
-  language-pack-da
-  language-pack-fr
-  language-pack-he
-  language-pack-zh-hant
-  libappindicator-dev
-  libappindicator1
-  libappindicator3-1:i386
-  libexif-dev
-  libexif12
-  libexif12:i386
-  libgbm-dev
-  libgl1-mesa-dev
-  libgl1-mesa-glx:i386
-  libgles2-mesa-dev
-  libgtk2.0-0
-  libgtk2.0-0:i386
-  libgtk2.0-dev
-  mesa-common-dev
-  msttcorefonts
-  ttf-dejavu-core
-  ttf-indic-fonts
-  ttf-kochi-gothic
-  ttf-kochi-mincho
-  ttf-mscorefonts-installer
-  xfonts-mathml
-"
-case $distro_codename in
-  trusty)
-    backwards_compatible_list+=" \
-      libgbm-dev-lts-trusty
-      libgl1-mesa-dev-lts-trusty
-      libgl1-mesa-glx-lts-trusty:i386
-      libgles2-mesa-dev-lts-trusty
-      mesa-common-dev-lts-trusty"
-    ;;
-  xenial)
-    backwards_compatible_list+=" \
-      libgbm-dev-lts-xenial
-      libgl1-mesa-dev-lts-xenial
-      libgl1-mesa-glx-lts-xenial:i386
-      libgles2-mesa-dev-lts-xenial
-      mesa-common-dev-lts-xenial"
-    ;;
-esac
-# arm cross toolchain packages needed to build chrome on armhf
-EM_REPO="deb http://emdebian.org/tools/debian/ jessie main"
-EM_SOURCE=$(cat <<EOF
-# Repo added by Chromium $0
-${EM_REPO}
-# deb-src http://emdebian.org/tools/debian/ jessie main
-EOF
-)
-EM_ARCHIVE_KEY_FINGER="084C6C6F39159EDB67969AA87DE089671804772E"
-GPP_ARM_PACKAGE="g++-arm-linux-gnueabihf"
-case $distro_codename in
-  jessie)
-    eval $(apt-config shell APT_SOURCESDIR 'Dir::Etc::sourceparts/d')
-    CROSSTOOLS_LIST="${APT_SOURCESDIR}/crosstools.list"
-    arm_list="libc6-dev:armhf
-              linux-libc-dev:armhf"
-    if [ "$do_inst_arm" = "1" ]; then
-      if $(dpkg-query -W ${GPP_ARM_PACKAGE} &>/dev/null); then
-        arm_list+=" ${GPP_ARM_PACKAGE}"
-      else
-        if [ "${add_cross_tool_repo}" = "1" ]; then
-          gpg --keyserver pgp.mit.edu --recv-keys ${EM_ARCHIVE_KEY_FINGER}
-          gpg -a --export ${EM_ARCHIVE_KEY_FINGER} | sudo apt-key add -
-          if ! grep "^${EM_REPO}" "${CROSSTOOLS_LIST}" &>/dev/null; then
-            echo "${EM_SOURCE}" | sudo tee -a "${CROSSTOOLS_LIST}" >/dev/null
-          fi
-          arm_list+=" ${GPP_ARM_PACKAGE}"
-        else
-          echo "The Debian Cross-toolchains repository is necessary to"
-          echo "cross-compile Chromium for arm."
-          echo "Rerun with --add-deb-cross-tool-repo to have it added for you."
-        fi
-      fi
-    fi
-    ;;
-  # All necessary ARM packages are available on the default repos on
-  # Debian 9 and later.
-  *)
-    arm_list="libc6-dev-armhf-cross
-              linux-libc-dev-armhf-cross
-              ${GPP_ARM_PACKAGE}"
-    ;;
-esac
-# Work around for dependency issue Ubuntu/Trusty: http://crbug.com/435056
-case $distro_codename in
-  trusty)
-    arm_list+=" g++-4.8-multilib-arm-linux-gnueabihf
-                gcc-4.8-multilib-arm-linux-gnueabihf"
-    ;;
-  xenial|artful|bionic)
-    arm_list+=" g++-5-multilib-arm-linux-gnueabihf
-                gcc-5-multilib-arm-linux-gnueabihf
-                gcc-arm-linux-gnueabihf"
-    ;;
-esac
-# Packages to build NaCl, its toolchains, and its ports.
-naclports_list="ant autoconf bison cmake gawk intltool xutils-dev xsltproc"
-nacl_list="\
-  g++-mingw-w64-i686
-  lib32z1-dev
-  libasound2:i386
-  libcap2:i386
-  libelf-dev:i386
-  libfontconfig1:i386
-  libglib2.0-0:i386
-  libgpm2:i386
-  libgtk-3-0:i386
-  libncurses5:i386
-  lib32ncurses5-dev
-  libnss3:i386
-  libpango1.0-0:i386
-  libssl-dev:i386
-  libtinfo-dev
-  libtinfo-dev:i386
-  libtool
-  libuuid1:i386
-  libxcomposite1:i386
-  libxcursor1:i386
-  libxdamage1:i386
-  libxi6:i386
-  libxrandr2:i386
-  libxss1:i386
-  libxtst6:i386
-  texinfo
-  xvfb
-  ${naclports_list}
-"
-if package_exists libssl1.1; then
-  nacl_list="${nacl_list} libssl1.1:i386"
-elif package_exists libssl1.0.2; then
-  nacl_list="${nacl_list} libssl1.0.2:i386"
-else
-  nacl_list="${nacl_list} libssl1.0.0:i386"
-fi
-# Some package names have changed over time
-if package_exists libpng16-16; then
-  lib_list="${lib_list} libpng16-16"
-else
-  lib_list="${lib_list} libpng12-0"
-fi
-if package_exists libnspr4; then
-  lib_list="${lib_list} libnspr4 libnss3"
-else
-  lib_list="${lib_list} libnspr4-0d libnss3-1d"
-fi
-if package_exists libjpeg-dev; then
-  dev_list="${dev_list} libjpeg-dev"
-else
-  dev_list="${dev_list} libjpeg62-dev"
-fi
-if package_exists libudev1; then
-  dev_list="${dev_list} libudev1"
-  nacl_list="${nacl_list} libudev1:i386"
-else
-  dev_list="${dev_list} libudev0"
-  nacl_list="${nacl_list} libudev0:i386"
-fi
-if package_exists libbrlapi0.6; then
-  dev_list="${dev_list} libbrlapi0.6"
-else
-  dev_list="${dev_list} libbrlapi0.5"
-fi
-if package_exists apache2.2-bin; then
-  dev_list="${dev_list} apache2.2-bin"
-else
-  dev_list="${dev_list} apache2-bin"
-fi
-if package_exists libav-tools; then
-  dev_list="${dev_list} libav-tools"
-fi
-if package_exists php7.2-cgi; then
-  dev_list="${dev_list} php7.2-cgi libapache2-mod-php7.2"
-elif package_exists php7.1-cgi; then
-  dev_list="${dev_list} php7.1-cgi libapache2-mod-php7.1"
-elif package_exists php7.0-cgi; then
-  dev_list="${dev_list} php7.0-cgi libapache2-mod-php7.0"
-else
-  dev_list="${dev_list} php5-cgi libapache2-mod-php5"
-fi
-# Some packages are only needed if the distribution actually supports
-# installing them.
-if package_exists appmenu-gtk; then
-  lib_list="$lib_list appmenu-gtk"
-fi
-# Cross-toolchain strip is needed for building the sysroots.
-if package_exists binutils-arm-linux-gnueabihf; then
-  dev_list="${dev_list} binutils-arm-linux-gnueabihf"
-fi
-if package_exists binutils-aarch64-linux-gnu; then
-  dev_list="${dev_list} binutils-aarch64-linux-gnu"
-fi
-if package_exists binutils-mipsel-linux-gnu; then
-  dev_list="${dev_list} binutils-mipsel-linux-gnu"
-fi
-if package_exists binutils-mips64el-linux-gnuabi64; then
-  dev_list="${dev_list} binutils-mips64el-linux-gnuabi64"
-fi
-# When cross building for arm/Android on 64-bit systems the host binaries
-# that are part of v8 need to be compiled with -m32 which means
-# that basic multilib support is needed.
-if file -L /sbin/init | grep -q 'ELF 64-bit'; then
-  # gcc-multilib conflicts with the arm cross compiler (at least in trusty) but
-  # g++-X.Y-multilib gives us the 32-bit support that we need. Find out the
-  # appropriate value of X and Y by seeing what version the current
-  # distribution's g++-multilib package depends on.
-  multilib_package=$(apt-cache depends g++-multilib --important | \
-      grep -E --color=never --only-matching '\bg\+\+-[0-9.]+-multilib\b')
-  lib32_list="$lib32_list $multilib_package"
-fi
-if [ "$do_inst_syms" = "1" ]; then
-  echo "Including debugging symbols."
-  # Debian is in the process of transitioning to automatic debug packages, which
-  # have the -dbgsym suffix (https://wiki.debian.org/AutomaticDebugPackages).
-  # Untransitioned packages have the -dbg suffix.  And on some systems, neither
-  # will be available, so exclude the ones that are missing.
-  dbg_package_name() {
-    if package_exists "$1-dbgsym"; then
-      echo "$1-dbgsym"
-    elif package_exists "$1-dbg"; then
-      echo "$1-dbg"
-    fi
-  }
-  for package in "${common_lib_list}"; do
-    dbg_list="$dbg_list $(dbg_package_name ${package})"
-  done
-  # Debugging symbols packages not following common naming scheme
-  if [ "$(dbg_package_name libstdc++6)" == "" ]; then
-    if package_exists libstdc++6-8-dbg; then
-      dbg_list="${dbg_list} libstdc++6-8-dbg"
-    elif package_exists libstdc++6-7-dbg; then
-      dbg_list="${dbg_list} libstdc++6-7-dbg"
-    elif package_exists libstdc++6-6-dbg; then
-      dbg_list="${dbg_list} libstdc++6-6-dbg"
-    elif package_exists libstdc++6-5-dbg; then
-      dbg_list="${dbg_list} libstdc++6-5-dbg"
-    elif package_exists libstdc++6-4.9-dbg; then
-      dbg_list="${dbg_list} libstdc++6-4.9-dbg"
-    elif package_exists libstdc++6-4.8-dbg; then
-      dbg_list="${dbg_list} libstdc++6-4.8-dbg"
-    elif package_exists libstdc++6-4.7-dbg; then
-      dbg_list="${dbg_list} libstdc++6-4.7-dbg"
-    elif package_exists libstdc++6-4.6-dbg; then
-      dbg_list="${dbg_list} libstdc++6-4.6-dbg"
-    fi
-  fi
-  if [ "$(dbg_package_name libatk1.0-0)" == "" ]; then
-    dbg_list="$dbg_list $(dbg_package_name libatk1.0)"
-  fi
-  if [ "$(dbg_package_name libpango1.0-0)" == "" ]; then
-    dbg_list="$dbg_list $(dbg_package_name libpango1.0-dev)"
-  fi
-else
-  echo "Skipping debugging symbols."
-  dbg_list=
-fi
-if [ "$do_inst_lib32" = "1" ]; then
-  echo "Including 32-bit libraries."
-else
-  echo "Skipping 32-bit libraries."
-  lib32_list=
-fi
-if [ "$do_inst_arm" = "1" ]; then
-  echo "Including ARM cross toolchain."
-else
-  echo "Skipping ARM cross toolchain."
-  arm_list=
-fi
-if [ "$do_inst_nacl" = "1" ]; then
-  echo "Including NaCl, NaCl toolchain, NaCl ports dependencies."
-else
-  echo "Skipping NaCl, NaCl toolchain, NaCl ports dependencies."
-  nacl_list=
-fi
-filtered_backwards_compatible_list=
-if [ "$do_inst_backwards_compatible" = "1" ]; then
-  echo "Including backwards compatible packages."
-  for package in ${backwards_compatible_list}; do
-    if package_exists ${package}; then
-      filtered_backwards_compatible_list+=" ${package}"
-    fi
-  done
-fi
-# The `sort -r -s -t: -k2` sorts all the :i386 packages to the front, to avoid
-# confusing dpkg-query (crbug.com/446172).
-packages="$(
-  echo "${dev_list} ${lib_list} ${dbg_list} ${lib32_list} ${arm_list}" \
-       "${nacl_list}" ${filtered_backwards_compatible_list} | tr " " "\n" | \
-       sort -u | sort -r -s -t: -k2 | tr "\n" " "
-)"
-if [ 1 -eq "${do_quick_check-0}" ] ; then
-  if ! missing_packages="$(dpkg-query -W -f ' ' ${packages} 2>&1)"; then
-    # Distinguish between packages that actually aren't available to the
-    # system (i.e. not in any repo) and packages that just aren't known to
-    # dpkg (i.e. managed by apt).
-    missing_packages="$(echo "${missing_packages}" | awk '{print $NF}')"
-    not_installed=""
-    unknown=""
-    for p in ${missing_packages}; do
-      if apt-cache show ${p} > /dev/null 2>&1; then
-        not_installed="${p}\n${not_installed}"
-      else
-        unknown="${p}\n${unknown}"
-      fi
-    done
-    if [ -n "${not_installed}" ]; then
-      echo "WARNING: The following packages are not installed:"
-      echo -e "${not_installed}" | sed -e "s/^/  /"
-    fi
-    if [ -n "${unknown}" ]; then
-      echo "WARNING: The following packages are unknown to your system"
-      echo "(maybe missing a repo or need to 'sudo apt-get update'):"
-      echo -e "${unknown}" | sed -e "s/^/  /"
-    fi
-    exit 1
-  fi
-  exit 0
-fi
-if [ "$do_inst_lib32" = "1" ] || [ "$do_inst_nacl" = "1" ]; then
-  sudo dpkg --add-architecture i386
-fi
-sudo apt-get update
-# We initially run "apt-get" with the --reinstall option and parse its output.
-# This way, we can find all the packages that need to be newly installed
-# without accidentally promoting any packages from "auto" to "manual".
-# We then re-run "apt-get" with just the list of missing packages.
-echo "Finding missing packages..."
-# Intentionally leaving $packages unquoted so it's more readable.
-echo "Packages required: " $packages
-echo
-new_list_cmd="sudo apt-get install --reinstall $(echo $packages)"
-if new_list="$(yes n | LANGUAGE=en LANG=C $new_list_cmd)"; then
-  # We probably never hit this following line.
-  echo "No missing packages, and the packages are up to date."
-elif [ $? -eq 1 ]; then
-  # We expect apt-get to have exit status of 1.
-  # This indicates that we cancelled the install with "yes n|".
-  new_list=$(echo "$new_list" |
-    sed -e '1,/The following NEW packages will be installed:/d;s/^  //;t;d')
-  new_list=$(echo "$new_list" | sed 's/ *$//')
-  if [ -z "$new_list" ] ; then
-    echo "No missing packages, and the packages are up to date."
-  else
-    echo "Installing missing packages: $new_list."
-    sudo apt-get install ${do_quietly-} ${new_list}
-  fi
-  echo
-else
-  # An apt-get exit status of 100 indicates that a real error has occurred.
-  # I am intentionally leaving out the '"'s around new_list_cmd,
-  # as this makes it easier to cut and paste the output
-  echo "The following command failed: " ${new_list_cmd}
-  echo
-  echo "It produces the following output:"
-  yes n | $new_list_cmd || true
-  echo
-  echo "You will have to install the above packages yourself."
-  echo
-  exit 100
-fi
-# Install the Chrome OS default fonts. This must go after running
-# apt-get, since install-chromeos-fonts depends on curl.
-if [ "$do_inst_chromeos_fonts" != "0" ]; then
-  echo
-  echo "Installing Chrome OS fonts."
-  dir=`echo $0 | sed -r -e 's/\/[^/]+$//'`
-  if ! sudo $dir/linux/install-chromeos-fonts.py; then
-    echo "ERROR: The installation of the Chrome OS default fonts failed."
-    if [ `stat -f -c %T $dir` == "nfs" ]; then
-      echo "The reason is that your repo is installed on a remote file system."
-    else
-      echo "This is expected if your repo is installed on a remote file system."
-    fi
-    echo "It is recommended to install your repo on a local file system."
-    echo "You can skip the installation of the Chrome OS default founts with"
-    echo "the command line option: --no-chromeos-fonts."
-    exit 1
-  fi
-else
-  echo "Skipping installation of Chrome OS fonts."
-fi
-echo "Installing locales."
-CHROMIUM_LOCALES="da_DK.UTF-8 fr_FR.UTF-8 he_IL.UTF-8 zh_TW.UTF-8"
-LOCALE_GEN=/etc/locale.gen
-if [ -e ${LOCALE_GEN} ]; then
-  OLD_LOCALE_GEN="$(cat /etc/locale.gen)"
-  for CHROMIUM_LOCALE in ${CHROMIUM_LOCALES}; do
-    sudo sed -i "s/^# ${CHROMIUM_LOCALE}/${CHROMIUM_LOCALE}/" ${LOCALE_GEN}
-  done
-  # Regenerating locales can take a while, so only do it if we need to.
-  if (echo "${OLD_LOCALE_GEN}" | cmp -s ${LOCALE_GEN}); then
-    echo "Locales already up-to-date."
-  else
-    sudo locale-gen
-  fi
-else
-  for CHROMIUM_LOCALE in ${CHROMIUM_LOCALES}; do
-    sudo locale-gen ${CHROMIUM_LOCALE}
-  done
-fi
--- a/build/mac/make_locale_dirs.py
+++ b/build/mac/make_locale_dirs.py
@@ -8,6 +8,7 @@
 # require any direct Cocoa locale support.

 import os
+import errno
 import sys


@@ -16,7 +17,7 @@ def main(args):
    try:
      os.makedirs(dirname)
    except OSError as e:
-      if e.errno == os.errno.EEXIST:
+      if e.errno == errno.EEXIST:
        # It's OK if it already exists
        pass
      else:
--- a/build/npm-run.py
+++ b/build/npm-run.py
@@ -15,12 +15,6 @@ args = [cmd, "run",
 try:
    subprocess.check_output(args, stderr=subprocess.STDOUT)
 except subprocess.CalledProcessError as e:
-    print(
-        "NPM script '"
-        + sys.argv[2]
-        + "' failed with code '"
-        + str(e.returncode)
-        + "':\n"
-        + e.output
-    )
+    error_msg = "NPM script '{}' failed with code '{}':\n".format(sys.argv[2], e.returncode)
+    print(error_msg + e.output.decode('utf8'))
    sys.exit(e.returncode)
--- a/build/npm.gni
+++ b/build/npm.gni
@@ -5,8 +5,8 @@ template("npm_action") {

  action("npm_pre_flight_" + target_name) {
    inputs = [
-      "package.json",
-      "yarn.lock",
+      "//electron/package.json",
+      "//electron/yarn.lock",
    ]
    script = "//electron/build/npm-run.py"

--- a/build/webpack/webpack.config.base.js
+++ b/build/webpack/webpack.config.base.js
@@ -61,13 +61,6 @@ module.exports = ({
      );
    }

-    if (defines.ENABLE_REMOTE_MODULE === 'false') {
-      ignoredModules.push(
-        '@electron/internal/browser/remote/server',
-        '@electron/internal/renderer/api/remote'
-      );
-    }
-
    if (defines.ENABLE_VIEWS_API === 'false') {
      ignoredModules.push(
        '@electron/internal/browser/api/views/image-view.js'
@@ -163,7 +156,7 @@ if ((globalThis.process || binding.process).argv.includes("--profile-electron-in
        setImmediate: false
      },
      optimization: {
-        minimize: true,
+        minimize: env.mode === 'production',
        minimizer: [
          new TerserPlugin({
            terserOptions: {
--- a/build/webpack/webpack.gni
+++ b/build/webpack/webpack.gni
@@ -22,6 +22,11 @@ template("webpack_build") {
               "//electron/typings/internal-electron.d.ts",
             ] + invoker.inputs

+    mode = "development"
+    if (is_official_build) {
+      mode = "production"
+    }
+
    args = [
      "--config",
      rebase_path(invoker.config_file),
@@ -29,8 +34,9 @@ template("webpack_build") {
      "--output-path=" + rebase_path(get_path_info(invoker.out_file, "dir")),
      "--env.buildflags=" +
          rebase_path("$target_gen_dir/buildflags/buildflags.h"),
+      "--env.mode=" + mode,
    ]
-    deps += [ "buildflags" ]
+    deps += [ "//electron/buildflags" ]

    outputs = [ invoker.out_file ]
  }
--- a/build/zip.py
+++ b/build/zip.py
@@ -31,14 +31,10 @@ PATHS_TO_SKIP = [
  # //chrome/browser/resources/ssl/ssl_error_assistant, but we don't need to
  # ship it.
  'pyproto',
-  # On Windows, this binary doesn't exist (the crashpad handler is built-in).
-  # On MacOS, the binary is called 'chrome_crashpad_handler' and is inside the
-  # app bundle.
-  # On Linux, we don't use crashpad, but this binary is still built for some
-  # reason. Exclude it from the zip.
-  './crashpad_handler',
  # Skip because these are outputs that we don't need.
  'resources/inspector',
+  'gen/third_party/devtools-frontend/src',
+  'gen/ui/webui'
 ]

 def skip_path(dep, dist_zip, target_cpu):
@@ -70,7 +66,7 @@ def execute(argv):
    raise e

 def main(argv):
-  dist_zip, runtime_deps, target_cpu, _, flatten_val = argv
+  dist_zip, runtime_deps, target_cpu, _, flatten_val, flatten_relative_to = argv
  should_flatten = flatten_val == "true"
  dist_files = set()
  with open(runtime_deps) as f:
@@ -97,11 +93,18 @@ def main(argv):
            if basename == 'chrome_sandbox'
            else dep
          )
+          name_to_write = arcname
+          if should_flatten:
+            if flatten_relative_to:
+              if name_to_write.startswith(flatten_relative_to):
+                name_to_write = name_to_write[len(flatten_relative_to):]
+              else:
+                name_to_write = os.path.basename(arcname)
+            else:
+              name_to_write = os.path.basename(arcname)
          z.write(
            dep,
-            os.path.basename(arcname)
-            if should_flatten
-            else arcname,
+            name_to_write,
          )

 if __name__ == '__main__':
--- a/build/zip_libcxx.py
+++ b/build/zip_libcxx.py
@@ -0,0 +1,47 @@
+#!/usr/bin/env python
+from __future__ import print_function
+import os
+import subprocess
+import sys
+import zipfile
+
+def execute(argv):
+  try:
+    output = subprocess.check_output(argv, stderr=subprocess.STDOUT)
+    return output
+  except subprocess.CalledProcessError as e:
+    print(e.output)
+    raise e
+
+def get_object_files(base_path, archive_name):
+  archive_file = os.path.join(base_path, archive_name)
+  output = execute(['nm', '-g', archive_file]).decode('ascii')
+  object_files = set()
+  lines = output.split("\n")
+  for line in lines:
+    if line.startswith(base_path):
+      object_file = line.split(":")[0]
+      object_files.add(object_file)
+    if line.startswith('nm: '):
+      object_file = line.split(":")[1].lstrip()
+      object_files.add(object_file)
+  return list(object_files) + [archive_file]
+
+def main(argv):
+  dist_zip, = argv
+  out_dir = os.path.dirname(dist_zip)
+  base_path_libcxx = os.path.join(out_dir, 'obj/buildtools/third_party/libc++')
+  base_path_libcxxabi = os.path.join(out_dir, 'obj/buildtools/third_party/libc++abi')
+  object_files_libcxx = get_object_files(base_path_libcxx, 'libc++.a')
+  object_files_libcxxabi = get_object_files(base_path_libcxxabi, 'libc++abi.a')
+  with zipfile.ZipFile(
+      dist_zip, 'w', zipfile.ZIP_DEFLATED, allowZip64=True
+    ) as z:
+      object_files_libcxx.sort()
+      for object_file in object_files_libcxx:
+        z.write(object_file, os.path.relpath(object_file, base_path_libcxx))
+      for object_file in object_files_libcxxabi:
+        z.write(object_file, os.path.relpath(object_file, base_path_libcxxabi))
+
+if __name__ == '__main__':
+  sys.exit(main(sys.argv[1:]))
--- a/buildflags/BUILD.gn
+++ b/buildflags/BUILD.gn
@@ -12,7 +12,6 @@ buildflag_header("buildflags") {
    "ENABLE_DESKTOP_CAPTURER=$enable_desktop_capturer",
    "ENABLE_RUN_AS_NODE=$enable_run_as_node",
    "ENABLE_OSR=$enable_osr",
-    "ENABLE_REMOTE_MODULE=$enable_remote_module",
    "ENABLE_VIEWS_API=$enable_views_api",
    "ENABLE_PDF_VIEWER=$enable_pdf_viewer",
    "ENABLE_TTS=$enable_tts",
--- a/buildflags/buildflags.gni
+++ b/buildflags/buildflags.gni
@@ -10,8 +10,6 @@ declare_args() {

  enable_osr = true

-  enable_remote_module = true
-
  enable_views_api = true

  enable_pdf_viewer = true
--- a/chromium_src/BUILD.gn
+++ b/chromium_src/BUILD.gn
@@ -2,6 +2,7 @@
 # Use of this source code is governed by the MIT license that can be
 # found in the LICENSE file.

+import("//build/config/ozone.gni")
 import("//build/config/ui.gni")
 import("//components/spellcheck/spellcheck_build_features.gni")
 import("//electron/buildflags/buildflags.gni")
@@ -16,12 +17,12 @@ static_library("chrome") {
    "//chrome/browser/accessibility/accessibility_ui.h",
    "//chrome/browser/browser_process.cc",
    "//chrome/browser/browser_process.h",
-    "//chrome/browser/crash_upload_list/crash_upload_list_crashpad.cc",
-    "//chrome/browser/crash_upload_list/crash_upload_list_crashpad.h",
    "//chrome/browser/devtools/devtools_contents_resizing_strategy.cc",
    "//chrome/browser/devtools/devtools_contents_resizing_strategy.h",
    "//chrome/browser/devtools/devtools_embedder_message_dispatcher.cc",
    "//chrome/browser/devtools/devtools_embedder_message_dispatcher.h",
+    "//chrome/browser/devtools/devtools_eye_dropper.cc",
+    "//chrome/browser/devtools/devtools_eye_dropper.h",
    "//chrome/browser/devtools/devtools_file_system_indexer.cc",
    "//chrome/browser/devtools/devtools_file_system_indexer.h",
    "//chrome/browser/extensions/global_shortcut_listener.cc",
@@ -36,6 +37,8 @@ static_library("chrome") {
    "//chrome/browser/net/proxy_config_monitor.h",
    "//chrome/browser/net/proxy_service_factory.cc",
    "//chrome/browser/net/proxy_service_factory.h",
+    "//chrome/browser/platform_util.cc",
+    "//chrome/browser/platform_util.h",
    "//chrome/browser/predictors/preconnect_manager.cc",
    "//chrome/browser/predictors/preconnect_manager.h",
    "//chrome/browser/predictors/predictors_features.cc",
@@ -44,11 +47,12 @@ static_library("chrome") {
    "//chrome/browser/predictors/proxy_lookup_client_impl.h",
    "//chrome/browser/predictors/resolve_host_client_impl.cc",
    "//chrome/browser/predictors/resolve_host_client_impl.h",
-    "//chrome/browser/ssl/security_state_tab_helper.cc",
-    "//chrome/browser/ssl/security_state_tab_helper.h",
-    "//chrome/browser/ssl/tls_deprecation_config.cc",
    "//chrome/browser/ui/views/autofill/autofill_popup_view_utils.cc",
    "//chrome/browser/ui/views/autofill/autofill_popup_view_utils.h",
+    "//chrome/browser/ui/views/eye_dropper/eye_dropper.cc",
+    "//chrome/browser/ui/views/eye_dropper/eye_dropper.h",
+    "//chrome/browser/ui/views/eye_dropper/eye_dropper_view.cc",
+    "//chrome/browser/ui/views/eye_dropper/eye_dropper_view.h",
    "//extensions/browser/app_window/size_constraints.cc",
    "//extensions/browser/app_window/size_constraints.h",
  ]
@@ -60,6 +64,9 @@ static_library("chrome") {
      "//chrome/browser/icon_loader_mac.mm",
      "//chrome/browser/media/webrtc/system_media_capture_permissions_mac.h",
      "//chrome/browser/media/webrtc/system_media_capture_permissions_mac.mm",
+      "//chrome/browser/media/webrtc/window_icon_util_mac.mm",
+      "//chrome/browser/ui/views/eye_dropper/eye_dropper_view_mac.h",
+      "//chrome/browser/ui/views/eye_dropper/eye_dropper_view_mac.mm",
    ]
  }

@@ -68,21 +75,37 @@ static_library("chrome") {
      "//chrome/browser/extensions/global_shortcut_listener_win.cc",
      "//chrome/browser/extensions/global_shortcut_listener_win.h",
      "//chrome/browser/icon_loader_win.cc",
+      "//chrome/browser/media/webrtc/window_icon_util_win.cc",
+      "//chrome/browser/ui/frame/window_frame_util.h",
+      "//chrome/browser/ui/view_ids.h",
      "//chrome/browser/win/chrome_process_finder.cc",
      "//chrome/browser/win/chrome_process_finder.h",
+      "//chrome/browser/win/titlebar_config.h",
      "//chrome/child/v8_crashpad_support_win.cc",
      "//chrome/child/v8_crashpad_support_win.h",
    ]
  }

+  if (is_linux) {
+    sources += [ "//chrome/browser/media/webrtc/window_icon_util_linux.cc" ]
+  }
+
+  if (use_aura) {
+    sources += [
+      "//chrome/browser/platform_util_aura.cc",
+      "//chrome/browser/ui/views/eye_dropper/eye_dropper_view_aura.cc",
+    ]
+  }
+
  public_deps = [
+    "//chrome/browser:dev_ui_browser_resources",
    "//chrome/common",
    "//chrome/common:version_header",
    "//components/keyed_service/content",
    "//components/paint_preview/buildflags",
    "//components/proxy_config",
-    "//components/security_state/content",
    "//content/public/browser",
+    "//services/strings",
  ]

  deps = [
@@ -91,14 +114,24 @@ static_library("chrome") {
    "//components/optimization_guide/proto:optimization_guide_proto",
  ]

+  if (enable_basic_printing && is_win) {
+    deps += [ "//chrome/common:cloud_print_utility_mojom" ]
+  }
+
  if (is_linux) {
    sources += [ "//chrome/browser/icon_loader_auralinux.cc" ]
+    if (use_x11 || use_ozone) {
+      sources +=
+          [ "//chrome/browser/extensions/global_shortcut_listener_linux.cc" ]
+    }
    if (use_x11) {
      sources += [
        "//chrome/browser/extensions/global_shortcut_listener_x11.cc",
        "//chrome/browser/extensions/global_shortcut_listener_x11.h",
      ]
-    } else if (use_ozone) {
+    }
+    if (use_ozone) {
+      deps += [ "//ui/ozone" ]
      sources += [
        "//chrome/browser/extensions/global_shortcut_listener_ozone.cc",
        "//chrome/browser/extensions/global_shortcut_listener_ozone.h",
@@ -137,53 +170,6 @@ static_library("chrome") {
    deps += [ "//ui/snapshot" ]
  }

-  if (enable_color_chooser) {
-    sources += [
-      "//chrome/browser/platform_util.cc",
-      "//chrome/browser/platform_util.h",
-      "//chrome/browser/ui/browser_dialogs.h",
-      "//chrome/browser/ui/color_chooser.h",
-    ]
-
-    if (use_aura) {
-      sources += [ "//chrome/browser/platform_util_aura.cc" ]
-
-      if (!is_win) {
-        sources += [
-          "//chrome/browser/ui/views/color_chooser_aura.cc",
-          "//chrome/browser/ui/views/color_chooser_aura.h",
-        ]
-      }
-
-      deps += [ "//components/feature_engagement" ]
-    }
-
-    if (is_mac) {
-      sources += [
-        "//chrome/browser/media/webrtc/window_icon_util_mac.mm",
-        "//chrome/browser/ui/cocoa/color_chooser_mac.h",
-        "//chrome/browser/ui/cocoa/color_chooser_mac.mm",
-      ]
-      deps += [
-        "//components/remote_cocoa/app_shim",
-        "//components/remote_cocoa/browser",
-      ]
-    }
-
-    if (is_win) {
-      sources += [
-        "//chrome/browser/media/webrtc/window_icon_util_win.cc",
-        "//chrome/browser/ui/views/color_chooser_dialog.cc",
-        "//chrome/browser/ui/views/color_chooser_dialog.h",
-        "//chrome/browser/ui/views/color_chooser_win.cc",
-      ]
-    }
-
-    if (is_linux) {
-      sources += [ "//chrome/browser/media/webrtc/window_icon_util_x11.cc" ]
-    }
-  }
-
  if (enable_widevine) {
    sources += [
      "//chrome/renderer/media/chrome_key_systems.cc",
@@ -204,12 +190,8 @@ static_library("chrome") {
      "//chrome/browser/printing/print_job_worker.h",
      "//chrome/browser/printing/print_view_manager_base.cc",
      "//chrome/browser/printing/print_view_manager_base.h",
-      "//chrome/browser/printing/print_view_manager_basic.cc",
-      "//chrome/browser/printing/print_view_manager_basic.h",
      "//chrome/browser/printing/printer_query.cc",
      "//chrome/browser/printing/printer_query.h",
-      "//chrome/browser/printing/printing_message_filter.cc",
-      "//chrome/browser/printing/printing_message_filter.h",
      "//chrome/browser/printing/printing_service.cc",
      "//chrome/browser/printing/printing_service.h",
    ]
@@ -244,8 +226,12 @@ static_library("chrome") {
      "//chrome/browser/picture_in_picture/picture_in_picture_window_manager.h",
      "//chrome/browser/ui/views/overlay/back_to_tab_image_button.cc",
      "//chrome/browser/ui/views/overlay/back_to_tab_image_button.h",
+      "//chrome/browser/ui/views/overlay/back_to_tab_label_button.cc",
      "//chrome/browser/ui/views/overlay/close_image_button.cc",
      "//chrome/browser/ui/views/overlay/close_image_button.h",
+      "//chrome/browser/ui/views/overlay/constants.h",
+      "//chrome/browser/ui/views/overlay/hang_up_button.cc",
+      "//chrome/browser/ui/views/overlay/hang_up_button.h",
      "//chrome/browser/ui/views/overlay/overlay_window_views.cc",
      "//chrome/browser/ui/views/overlay/overlay_window_views.h",
      "//chrome/browser/ui/views/overlay/playback_image_button.cc",
@@ -254,6 +240,10 @@ static_library("chrome") {
      "//chrome/browser/ui/views/overlay/resize_handle_button.h",
      "//chrome/browser/ui/views/overlay/skip_ad_label_button.cc",
      "//chrome/browser/ui/views/overlay/skip_ad_label_button.h",
+      "//chrome/browser/ui/views/overlay/toggle_camera_button.cc",
+      "//chrome/browser/ui/views/overlay/toggle_camera_button.h",
+      "//chrome/browser/ui/views/overlay/toggle_microphone_button.cc",
+      "//chrome/browser/ui/views/overlay/toggle_microphone_button.h",
      "//chrome/browser/ui/views/overlay/track_image_button.cc",
      "//chrome/browser/ui/views/overlay/track_image_button.h",
    ]
--- a/chromium_src/chrome/browser/certificate_manager_model.cc
+++ b/chromium_src/chrome/browser/certificate_manager_model.cc
@@ -90,7 +90,7 @@ CertificateManagerModel::~CertificateManagerModel() = default;
 int CertificateManagerModel::ImportFromPKCS12(
    PK11SlotInfo* slot_info,
    const std::string& data,
-    const base::string16& password,
+    const std::u16string& password,
    bool is_extractable,
    net::ScopedCERTCertificateList* imported_certs) {
  return cert_db_->ImportFromPKCS12(slot_info, data, password, is_extractable,
@@ -133,7 +133,7 @@ void CertificateManagerModel::DidGetCertDBOnUIThread(
    CreationCallback callback) {
  DCHECK_CURRENTLY_ON(BrowserThread::UI);

-  std::unique_ptr<CertificateManagerModel> model(
+  auto model = base::WrapUnique(
      new CertificateManagerModel(cert_db, is_user_db_available));
  std::move(callback).Run(std::move(model));
 }
@@ -157,15 +157,14 @@ void CertificateManagerModel::GetCertDBOnIOThread(
    CreationCallback callback) {
  DCHECK_CURRENTLY_ON(BrowserThread::IO);

-  auto did_get_cert_db_callback = base::AdaptCallbackForRepeating(
-      base::BindOnce(&CertificateManagerModel::DidGetCertDBOnIOThread,
-                     std::move(callback)));
+  auto split_callback = base::SplitOnceCallback(base::BindOnce(
+      &CertificateManagerModel::DidGetCertDBOnIOThread, std::move(callback)));

-  net::NSSCertDatabase* cert_db =
-      GetNSSCertDatabaseForResourceContext(context, did_get_cert_db_callback);
+  net::NSSCertDatabase* cert_db = GetNSSCertDatabaseForResourceContext(
+      context, std::move(split_callback.first));

  // If the NSS database was already available, |cert_db| is non-null and
  // |did_get_cert_db_callback| has not been called. Call it explicitly.
  if (cert_db)
-    did_get_cert_db_callback.Run(cert_db);
+    std::move(split_callback.second).Run(cert_db);
 }
--- a/chromium_src/chrome/browser/certificate_manager_model.h
+++ b/chromium_src/chrome/browser/certificate_manager_model.h
@@ -5,14 +5,12 @@
 #ifndef CHROME_BROWSER_CERTIFICATE_MANAGER_MODEL_H_
 #define CHROME_BROWSER_CERTIFICATE_MANAGER_MODEL_H_

-#include <map>
 #include <memory>
 #include <string>

 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
-#include "base/strings/string16.h"
 #include "net/cert/nss_cert_database.h"

 namespace content {
@@ -46,7 +44,7 @@ class CertificateManagerModel {
  // Returns a net error code on failure.
  int ImportFromPKCS12(PK11SlotInfo* slot_info,
                       const std::string& data,
-                       const base::string16& password,
+                       const std::u16string& password,
                       bool is_extractable,
                       net::ScopedCERTCertificateList* imported_certs);

--- a/chromium_src/chrome/browser/process_singleton.h
+++ b/chromium_src/chrome/browser/process_singleton.h
@@ -9,9 +9,6 @@
 #include <windows.h>
 #endif  // defined(OS_WIN)

-#include <set>
-#include <vector>
-
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ -127,10 +124,11 @@ class ProcessSingleton {
  NotificationCallback notification_callback_;  // Handler for notifications.

 #if defined(OS_WIN)
-  HWND remote_window_;               // The HWND_MESSAGE of another browser.
+  HWND remote_window_ = nullptr;     // The HWND_MESSAGE of another browser.
  base::win::MessageWindow window_;  // The message-only window.
-  bool is_virtualized_;  // Stuck inside Microsoft Softricity VM environment.
-  HANDLE lock_file_;
+  bool is_virtualized_ =
+      false;  // Stuck inside Microsoft Softricity VM environment.
+  HANDLE lock_file_ = INVALID_HANDLE_VALUE;
  base::FilePath user_data_dir_;
  ShouldKillRemoteProcessCallback should_kill_remote_process_callback_;
 #elif defined(OS_POSIX) && !defined(OS_ANDROID)
@@ -157,7 +155,7 @@ class ProcessSingleton {

  // Function to call when the other process is hung and needs to be killed.
  // Allows overriding for tests.
-  base::Callback<void(int)> kill_callback_;
+  base::RepeatingCallback<void(int)> kill_callback_;

  // Path in file system to the socket.
  base::FilePath socket_path_;
@@ -175,7 +173,7 @@ class ProcessSingleton {
  // because it posts messages between threads.
  class LinuxWatcher;
  scoped_refptr<LinuxWatcher> watcher_;
-  int sock_;
+  int sock_ = -1;
  bool listen_on_ready_ = false;
 #endif

--- a/chromium_src/chrome/browser/process_singleton_posix.cc
+++ b/chromium_src/chrome/browser/process_singleton_posix.cc
@@ -333,7 +333,7 @@ bool IsChromeProcess(pid_t pid) {
 // A helper class to hold onto a socket.
 class ScopedSocket {
 public:
-  ScopedSocket() : fd_(-1) { Reset(); }
+  ScopedSocket() { Reset(); }
  ~ScopedSocket() { Close(); }
  int fd() { return fd_; }
  void Reset() {
@@ -347,7 +347,7 @@ class ScopedSocket {
  }

 private:
-  int fd_;
+  int fd_ = -1;
 };

 // Returns a random string for uniquifying profile connections.
@@ -473,10 +473,7 @@ class ProcessSingleton::LinuxWatcher
    SocketReader(ProcessSingleton::LinuxWatcher* parent,
                 scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner,
                 int fd)
-        : parent_(parent),
-          ui_task_runner_(ui_task_runner),
-          fd_(fd),
-          bytes_read_(0) {
+        : parent_(parent), ui_task_runner_(ui_task_runner), fd_(fd) {
      DCHECK_CURRENTLY_ON(BrowserThread::IO);
      // Wait for reads.
      fd_watch_controller_ = base::FileDescriptorWatcher::WatchReadable(
@@ -508,20 +505,20 @@ class ProcessSingleton::LinuxWatcher
        fd_watch_controller_;

    // The ProcessSingleton::LinuxWatcher that owns us.
-    ProcessSingleton::LinuxWatcher* const parent_;
+    ProcessSingleton::LinuxWatcher* const parent_ = nullptr;

    // A reference to the UI task runner.
    scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner_;

    // The file descriptor we're reading.
-    const int fd_;
+    const int fd_ = -1;

    // Store the message in this buffer.
    char buf_[kMaxMessageLength];

    // Tracks the number of bytes we've read in case we're getting partial
    // reads.
-    size_t bytes_read_;
+    size_t bytes_read_ = 0;

    base::OneShotTimer timer_;

@@ -881,7 +878,7 @@ ProcessSingleton::NotifyResult ProcessSingleton::NotifyOtherProcessOrCreate() {
 }

 void ProcessSingleton::StartListeningOnSocket() {
-  watcher_ = new LinuxWatcher(this);
+  watcher_ = base::MakeRefCounted<LinuxWatcher>(this);
  base::PostTask(FROM_HERE, {BrowserThread::IO},
                 base::BindOnce(&ProcessSingleton::LinuxWatcher::StartListening,
                                watcher_, sock_));
--- a/chromium_src/chrome/browser/process_singleton_win.cc
+++ b/chromium_src/chrome/browser/process_singleton_win.cc
@@ -4,6 +4,7 @@

 #include "chrome/browser/process_singleton.h"

+#include <windows.h>
 #include <shellapi.h>

 #include "base/base_paths.h"
@@ -172,8 +173,6 @@ ProcessSingleton::ProcessSingleton(
    const base::FilePath& user_data_dir,
    const NotificationCallback& notification_callback)
    : notification_callback_(notification_callback),
-      is_virtualized_(false),
-      lock_file_(INVALID_HANDLE_VALUE),
      user_data_dir_(user_data_dir),
      should_kill_remote_process_callback_(
          base::BindRepeating(&TerminateAppWithError)) {
--- a/chromium_src/chrome/browser/ui/views/frame/global_menu_bar_registrar_x11.cc
+++ b/chromium_src/chrome/browser/ui/views/frame/global_menu_bar_registrar_x11.cc
@@ -38,8 +38,7 @@ void GlobalMenuBarRegistrarX11::OnWindowUnmapped(x11::Window window) {
  live_windows_.erase(window);
 }

-GlobalMenuBarRegistrarX11::GlobalMenuBarRegistrarX11()
-    : registrar_proxy_(nullptr) {
+GlobalMenuBarRegistrarX11::GlobalMenuBarRegistrarX11() {
  // libdbusmenu uses the gio version of dbus; I tried using the code in dbus/,
  // but it looks like that's isn't sharing the bus name with the gio version,
  // even when |connection_type| is set to SHARED.
--- a/chromium_src/chrome/browser/ui/views/frame/global_menu_bar_registrar_x11.h
+++ b/chromium_src/chrome/browser/ui/views/frame/global_menu_bar_registrar_x11.h
@@ -48,7 +48,7 @@ class GlobalMenuBarRegistrarX11 {
                     GObject*,
                     GParamSpec*);

-  GDBusProxy* registrar_proxy_;
+  GDBusProxy* registrar_proxy_ = nullptr;

  // x11::Window which want to be registered, but haven't yet been because
  // we're waiting for the proxy to become available.
--- a/default_app/default_app.ts
+++ b/default_app/default_app.ts
@@ -41,19 +41,18 @@ ipcMain.handle('bootstrap', (event) => {
  return isTrustedSender(event.sender) ? electronPath : null;
 });

-async function createWindow () {
+async function createWindow (backgroundColor?: string) {
  await app.whenReady();

  const options: Electron.BrowserWindowConstructorOptions = {
    width: 960,
    height: 620,
    autoHideMenuBar: true,
-    backgroundColor: '#2f3241',
+    backgroundColor,
    webPreferences: {
      preload: path.resolve(__dirname, 'preload.js'),
      contextIsolation: true,
-      sandbox: true,
-      enableRemoteModule: false
+      sandbox: true
    },
    useContentSize: true,
    show: false
@@ -96,7 +95,7 @@ export const loadURL = async (appUrl: string) => {
 };

 export const loadFile = async (appPath: string) => {
-  mainWindow = await createWindow();
+  mainWindow = await createWindow(appPath === 'index.html' ? '#2f3241' : undefined);
  mainWindow.loadFile(appPath);
  mainWindow.focus();
 };
--- a/default_app/index.html
+++ b/default_app/index.html
@@ -2,6 +2,7 @@

 <head>
  <title>Electron</title>
+  <meta http-equiv="Content-Security-Policy" content="require-trusted-types-for 'script'; trusted-types electron-default-app" />
  <meta http-equiv="Content-Security-Policy" content="default-src 'none'; script-src 'sha256-6PH54BfkNq/EMMhUY7nhHf3c+AxloOwfy7hWyT01CM8='; style-src 'self'; img-src 'self'; connect-src 'self'" />
  <link href="./styles.css" type="text/css" rel="stylesheet" />
  <link href="./octicon/build.css" type="text/css" rel="stylesheet" />
--- a/default_app/main.ts
+++ b/default_app/main.ts
@@ -109,7 +109,7 @@ function loadApplicationPackage (packagePath: string) {

    try {
      const filePath = Module._resolveFilename(packagePath, module, true);
-      app._setDefaultAppPaths(appPath || path.dirname(filePath));
+      app.setAppPath(appPath || path.dirname(filePath));
    } catch (e) {
      showErrorMessage(`Unable to find Electron app at ${packagePath}\n\n${e.message}`);
      return;
--- a/default_app/preload.ts
+++ b/default_app/preload.ts
@@ -1,10 +1,15 @@
 import { ipcRenderer, contextBridge } from 'electron';

+const policy = window.trustedTypes.createPolicy('electron-default-app', {
+  // we trust the SVG contents
+  createHTML: input => input
+});
+
 async function getOcticonSvg (name: string) {
  try {
    const response = await fetch(`octicon/${name}.svg`);
    const div = document.createElement('div');
-    div.innerHTML = await response.text();
+    div.innerHTML = policy.createHTML(await response.text());
    return div;
  } catch {
    return null;
--- a/docs/README.md
+++ b/docs/README.md
@@ -18,20 +18,14 @@ an issue:

 ## Guides and Tutorials

-### Quickstart
+### Getting started

-* [Quick Start Guide](tutorial/quick-start.md)
-  * [Prerequisites](tutorial/quick-start.md#prerequisites)
-  * [Create a basic application](tutorial/quick-start.md#create-a-basic-application)
-  * [Run your application](tutorial/quick-start.md#run-your-application)
-  * [Package and distribute the application](tutorial/quick-start.md#package-and-distribute-the-application)
+* [Introduction](tutorial/introduction.md)
+* [Quick Start](tutorial/quick-start.md)
+* [Process Model](tutorial/process-model.md)

 ### Learning the basics

-* [Electron's Process Model](tutorial/quick-start.md#application-architecture)
-  * [Main and Renderer Processes](tutorial/quick-start.md#main-and-renderer-processes)
-  * [Electron API](tutorial/quick-start.md#electron-api)
-  * [Node.js API](tutorial/quick-start.md#nodejs-api)
 * Adding Features to Your App
  * [Notifications](tutorial/notifications.md)
  * [Recent Documents](tutorial/recent-documents.md)
@@ -59,6 +53,7 @@ an issue:
  * [Using Native Node.js Modules](tutorial/using-native-node-modules.md)
  * [Performance Strategies](tutorial/performance.md)
  * [Security Strategies](tutorial/security.md)
+  * [Process Sandboxing](tutorial/sandbox.md)
 * [Accessibility](tutorial/accessibility.md)
  * [Manually Enabling Accessibility Features](tutorial/accessibility.md#manually-enabling-accessibility-features)
 * [Testing and Debugging](tutorial/application-debugging.md)
@@ -68,6 +63,7 @@ an issue:
  * [Testing on Headless CI Systems (Travis, Jenkins)](tutorial/testing-on-headless-ci.md)
  * [DevTools Extension](tutorial/devtools-extension.md)
  * [Automated Testing with a Custom Driver](tutorial/automated-testing-with-a-custom-driver.md)
+  * [REPL](tutorial/repl.md)
 * [Distribution](tutorial/application-distribution.md)
  * [Supported Platforms](tutorial/support.md#supported-platforms)
  * [Code Signing](tutorial/code-signing.md)
@@ -91,11 +87,6 @@ These individual tutorials expand on topics discussed in the guide above.
 * Electron Releases & Developer Feedback
  * [Versioning Policy](tutorial/electron-versioning.md)
  * [Release Timelines](tutorial/electron-timelines.md)
-* [Packaging App Source Code with asar](tutorial/application-packaging.md)
-  * [Generating asar Archives](tutorial/application-packaging.md#generating-asar-archives)
-  * [Using asar Archives](tutorial/application-packaging.md#using-asar-archives)
-  * [Limitations](tutorial/application-packaging.md#limitations-of-the-node-api)
-  * [Adding Unpacked Files to asar Archives](tutorial/application-packaging.md#adding-unpacked-files-to-asar-archives)
 * [Testing Widevine CDM](tutorial/testing-widevine-cdm.md)

 ---
@@ -131,6 +122,8 @@ These individual tutorials expand on topics discussed in the guide above.
 * [ipcMain](api/ipc-main.md)
 * [Menu](api/menu.md)
 * [MenuItem](api/menu-item.md)
+* [MessageChannelMain](api/message-channel-main.md)
+* [MessagePortMain](api/message-port-main.md)
 * [net](api/net.md)
 * [netLog](api/net-log.md)
 * [nativeTheme](api/native-theme.md)
@@ -140,6 +133,7 @@ These individual tutorials expand on topics discussed in the guide above.
 * [protocol](api/protocol.md)
 * [screen](api/screen.md)
 * [session](api/session.md)
+* [ShareMenu](api/share-menu.md)
 * [systemPreferences](api/system-preferences.md)
 * [TouchBar](api/touch-bar.md)
 * [Tray](api/tray.md)
@@ -148,15 +142,15 @@ These individual tutorials expand on topics discussed in the guide above.

 ### Modules for the Renderer Process (Web Page):

-* [desktopCapturer](api/desktop-capturer.md)
+* [contextBridge](api/context-bridge.md)
 * [ipcRenderer](api/ipc-renderer.md)
-* [remote](api/remote.md)
 * [webFrame](api/web-frame.md)

 ### Modules for Both Processes:

 * [clipboard](api/clipboard.md)
 * [crashReporter](api/crash-reporter.md)
+* [desktopCapturer](api/desktop-capturer.md)
 * [nativeImage](api/native-image.md)
 * [shell](api/shell.md)

--- a/docs/api/accelerator.md
+++ b/docs/api/accelerator.md
@@ -35,7 +35,7 @@ Linux and Windows to define some accelerators.
 Use `Alt` instead of `Option`. The `Option` key only exists on macOS, whereas
 the `Alt` key is available on all platforms.

-The `Super` key is mapped to the `Windows` key on Windows and Linux and
+The `Super` (or `Meta`) key is mapped to the `Windows` key on Windows and Linux and
 `Cmd` on macOS.

 ## Available modifiers
@@ -48,6 +48,7 @@ The `Super` key is mapped to the `Windows` key on Windows and Linux and
 * `AltGr`
 * `Shift`
 * `Super`
+* `Meta`

 ## Available key codes

--- a/docs/api/app.md
+++ b/docs/api/app.md
@@ -161,6 +161,8 @@ Returns:
  [`NSUserActivity.activityType`][activity-type].
 * `userInfo` unknown - Contains app-specific state stored by the activity on
  another device.
+* `details` Object
+  * `webpageURL` String (optional) - A string identifying the URL of the webpage accessed by the activity on another device, if available.

 Emitted during [Handoff][handoff] when an activity from a different device wants
 to be resumed. You should call `event.preventDefault()` if you want to handle
@@ -391,7 +393,7 @@ which contains more information about why the render process disappeared. It
 isn't always because it crashed.  The `killed` boolean can be replaced by
 checking `reason === 'killed'` when you switch to that event.

-#### Event: 'render-process-gone'
+### Event: 'render-process-gone'

 Returns:

@@ -406,11 +408,14 @@ Returns:
    * `oom` - Process ran out of memory
    * `launch-failed` - Process never successfully launched
    * `integrity-failure` - Windows code integrity checks failed
+  * `exitCode` Integer - The exit code of the process, unless `reason` is
+    `launch-failed`, in which case `exitCode` will be a platform-specific
+    launch failure error code.

 Emitted when the renderer process unexpectedly disappears.  This is normally
 because it was crashed or killed.

-#### Event: 'child-process-gone'
+### Event: 'child-process-gone'

 Returns:

@@ -504,64 +509,6 @@ Returns:
 Emitted when `desktopCapturer.getSources()` is called in the renderer process of `webContents`.
 Calling `event.preventDefault()` will make it return empty sources.

-### Event: 'remote-require' _Deprecated_
-
-Returns:
-
-* `event` Event
-* `webContents` [WebContents](web-contents.md)
-* `moduleName` String
-
-Emitted when `remote.require()` is called in the renderer process of `webContents`.
-Calling `event.preventDefault()` will prevent the module from being returned.
-Custom value can be returned by setting `event.returnValue`.
-
-### Event: 'remote-get-global' _Deprecated_
-
-Returns:
-
-* `event` Event
-* `webContents` [WebContents](web-contents.md)
-* `globalName` String
-
-Emitted when `remote.getGlobal()` is called in the renderer process of `webContents`.
-Calling `event.preventDefault()` will prevent the global from being returned.
-Custom value can be returned by setting `event.returnValue`.
-
-### Event: 'remote-get-builtin' _Deprecated_
-
-Returns:
-
-* `event` Event
-* `webContents` [WebContents](web-contents.md)
-* `moduleName` String
-
-Emitted when `remote.getBuiltin()` is called in the renderer process of `webContents`.
-Calling `event.preventDefault()` will prevent the module from being returned.
-Custom value can be returned by setting `event.returnValue`.
-
-### Event: 'remote-get-current-window' _Deprecated_
-
-Returns:
-
-* `event` Event
-* `webContents` [WebContents](web-contents.md)
-
-Emitted when `remote.getCurrentWindow()` is called in the renderer process of `webContents`.
-Calling `event.preventDefault()` will prevent the object from being returned.
-Custom value can be returned by setting `event.returnValue`.
-
-### Event: 'remote-get-current-web-contents' _Deprecated_
-
-Returns:
-
-* `event` Event
-* `webContents` [WebContents](web-contents.md)
-
-Emitted when `remote.getCurrentWebContents()` is called in the renderer process of `webContents`.
-Calling `event.preventDefault()` will prevent the object from being returned.
-Custom value can be returned by setting `event.returnValue`.
-
 ## Methods

 The `app` object has the following methods:
@@ -750,9 +697,10 @@ Overrides the current application's name.

 ### `app.getLocale()`

-Returns `String` - The current application locale. Possible return values are documented [here](locales.md).
+Returns `String` - The current application locale, fetched using Chromium's `l10n_util` library.
+Possible return values are documented [here](https://source.chromium.org/chromium/chromium/src/+/master:ui/base/l10n/l10n_util.cc).

-To set the locale, you'll want to use a command line switch at app startup, which may be found [here](https://github.com/electron/electron/blob/master/docs/api/command-line-switches.md).
+To set the locale, you'll want to use a command line switch at app startup, which may be found [here](command-line-switches.md).

 **Note:** When distributing your packaged app, you have to also ship the
 `locales` folder.
@@ -926,6 +874,10 @@ re-add a removed item to a custom category earlier than that will result in the
 entire custom category being omitted from the Jump List. The list of removed
 items can be obtained using `app.getJumpListSettings()`.

+**Note:** The maximum length of a Jump List item's `description` property is
+260 characters. Beyond this limit, the item will not be added to the Jump
+List, nor will it be displayed.
+
 Here's a very simple example of creating a custom Jump List:

 ```javascript
@@ -1109,6 +1061,61 @@ Imports the certificate in pkcs12 format into the platform certificate store.
 `callback` is called with the `result` of import operation, a value of `0`
 indicates success while any other value indicates failure according to Chromium [net_error_list](https://source.chromium.org/chromium/chromium/src/+/master:net/base/net_error_list.h).

+### `app.configureHostResolver(options)`
+
+* `options` Object
+  * `enableBuiltInResolver` Boolean (optional) - Whether the built-in host
+    resolver is used in preference to getaddrinfo. When enabled, the built-in
+    resolver will attempt to use the system's DNS settings to do DNS lookups
+    itself. Enabled by default on macOS, disabled by default on Windows and
+    Linux.
+  * `secureDnsMode` String (optional) - Can be "off", "automatic" or "secure".
+    Configures the DNS-over-HTTP mode. When "off", no DoH lookups will be
+    performed. When "automatic", DoH lookups will be peformed first if DoH is
+    available, and insecure DNS lookups will be performed as a fallback. When
+    "secure", only DoH lookups will be performed. Defaults to "automatic".
+  * `secureDnsServers` String[]&#32;(optional) - A list of DNS-over-HTTP
+    server templates. See [RFC8484 § 3][] for details on the template format.
+    Most servers support the POST method; the template for such servers is
+    simply a URI. Note that for [some DNS providers][doh-providers], the
+    resolver will automatically upgrade to DoH unless DoH is explicitly
+    disabled, even if there are no DoH servers provided in this list.
+  * `enableAdditionalDnsQueryTypes` Boolean (optional) - Controls whether additional DNS
+    query types, e.g. HTTPS (DNS type 65) will be allowed besides the
+    traditional A and AAAA queries when a request is being made via insecure
+    DNS. Has no effect on Secure DNS which always allows additional types.
+    Defaults to true.
+
+Configures host resolution (DNS and DNS-over-HTTPS). By default, the following
+resolvers will be used, in order:
+
+1. DNS-over-HTTPS, if the [DNS provider supports it][doh-providers], then
+2. the built-in resolver (enabled on macOS only by default), then
+3. the system's resolver (e.g. `getaddrinfo`).
+
+This can be configured to either restrict usage of non-encrypted DNS
+(`secureDnsMode: "secure"`), or disable DNS-over-HTTPS (`secureDnsMode:
+"off"`). It is also possible to enable or disable the built-in resolver.
+
+To disable insecure DNS, you can specify a `secureDnsMode` of `"secure"`. If you do
+so, you should make sure to provide a list of DNS-over-HTTPS servers to use, in
+case the user's DNS configuration does not include a provider that supports
+DoH.
+
+```js
+app.configureHostResolver({
+  secureDnsMode: 'secure',
+  secureDnsServers: [
+    'https://cloudflare-dns.com/dns-query'
+  ]
+})
+```
+
+This API must be called after the `ready` event is emitted.
+
+[doh-providers]: https://source.chromium.org/chromium/chromium/src/+/main:net/dns/public/doh_provider_entry.cc;l=31?q=%22DohProviderEntry::GetList()%22&ss=chromium%2Fchromium%2Fsrc
+[RFC8484 § 3]: https://datatracker.ietf.org/doc/html/rfc8484#section-3
+
 ### `app.disableHardwareAcceleration()`

 Disables hardware acceleration for current app.
@@ -1174,9 +1181,9 @@ For `infoType` equal to `basic`:

 Using `basic` should be preferred if only basic information like `vendorId` or `driverId` is needed.

-### `app.setBadgeCount(count)` _Linux_ _macOS_
+### `app.setBadgeCount([count])` _Linux_ _macOS_

-* `count` Integer
+* `count` Integer (optional) - If a value is provided, set the badge to the provided value otherwise, on macOS, display a plain white dot (e.g. unknown number of notifications). On Linux, if a value is not provided the badge will not display.

 Returns `Boolean` - Whether the call succeeded.

@@ -1185,8 +1192,8 @@ badge.

 On macOS, it shows on the dock icon. On Linux, it only works for Unity launcher.

-**Note:** Unity launcher requires the existence of a `.desktop` file to work,
-for more information please read [Desktop Environment Integration][unity-requirement].
+**Note:** Unity launcher requires a `.desktop` file to work. For more information,
+please read the [Unity integration documentation][unity-requirement].

 ### `app.getBadgeCount()` _Linux_ _macOS_

@@ -1424,8 +1431,8 @@ An `Integer` property that returns the badge count for current app. Setting the

 On macOS, setting this with any nonzero integer shows on the dock icon. On Linux, this property only works for Unity launcher.

-**Note:** Unity launcher requires the existence of a `.desktop` file to work,
-for more information please read [Desktop Environment Integration][unity-requirement].
+**Note:** Unity launcher requires a `.desktop` file to work. For more information,
+please read the [Unity integration documentation][unity-requirement].

 **Note:** On macOS, you need to ensure that your application has the permission
 to display notifications for this property to take effect.
@@ -1453,7 +1460,7 @@ A `Boolean` property that returns  `true` if the app is packaged, `false` otherw
 [LSCopyDefaultHandlerForURLScheme]: https://developer.apple.com/library/mac/documentation/Carbon/Reference/LaunchServicesReference/#//apple_ref/c/func/LSCopyDefaultHandlerForURLScheme
 [handoff]: https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/Handoff/HandoffFundamentals/HandoffFundamentals.html
 [activity-type]: https://developer.apple.com/library/ios/documentation/Foundation/Reference/NSUserActivity_Class/index.html#//apple_ref/occ/instp/NSUserActivity/activityType
-[unity-requirement]: ../tutorial/desktop-environment-integration.md#unity-launcher
+[unity-requirement]: https://help.ubuntu.com/community/UnityLaunchersAndDesktopFiles#Adding_shortcuts_to_a_launcher
 [mas-builds]: ../tutorial/mac-app-store-submission-guide.md
 [Squirrel-Windows]: https://github.com/Squirrel/Squirrel.Windows
 [JumpListBeginListMSDN]: https://msdn.microsoft.com/en-us/library/windows/desktop/dd378398(v=vs.85).aspx
@@ -1477,20 +1484,7 @@ This is the user agent that will be used when no user agent is set at the
 app has the same user agent.  Set to a custom value as early as possible
 in your app's initialization to ensure that your overridden value is used.

-### `app.allowRendererProcessReuse`
-
-A `Boolean` which when `true` disables the overrides that Electron has in place
-to ensure renderer processes are restarted on every navigation.  The current
-default value for this property is `true`.
-
-The intention is for these overrides to become disabled by default and then at
-some point in the future this property will be removed.  This property impacts
-which native modules you can use in the renderer process.  For more information
-on the direction Electron is going with renderer process restarts and usage of
-native modules in the renderer process please check out this
-[Tracking Issue](https://github.com/electron/electron/issues/18397).
-
-### `app.runningUnderRosettaTranslation` _macOS_ _Readonly_
+### `app.runningUnderRosettaTranslation` _macOS_ _Readonly_ _Deprecated_

 A `Boolean` which when `true` indicates that the app is currently running
 under the [Rosetta Translator Environment](https://en.wikipedia.org/wiki/Rosetta_(software)).
@@ -1498,3 +1492,18 @@ under the [Rosetta Translator Environment](https://en.wikipedia.org/wiki/Rosetta
 You can use this property to prompt users to download the arm64 version of
 your application when they are running the x64 version under Rosetta
 incorrectly.
+
+**Deprecated:** This property is superceded by the `runningUnderARM64Translation`
+property which detects when the app is being translated to ARM64 in both macOS
+and Windows.
+
+### `app.runningUnderARM64Translation` _Readonly_ _macOS_ _Windows_
+
+A `Boolean` which when `true` indicates that the app is currently running under
+an ARM64 translator (like the macOS
+[Rosetta Translator Environment](https://en.wikipedia.org/wiki/Rosetta_(software))
+or Windows [WOW](https://en.wikipedia.org/wiki/Windows_on_Windows)).
+
+You can use this property to prompt users to download the arm64 version of
+your application when they are running the x64 version under Rosetta
+incorrectly.
--- a/docs/api/auto-updater.md
+++ b/docs/api/auto-updater.md
@@ -118,6 +118,9 @@ Returns `String` - The current update feed URL.
 Asks the server whether there is an update. You must call `setFeedURL` before
 using this API.

+**Note:** If an update is available it will be downloaded automatically.
+Calling `autoUpdater.checkForUpdates()` twice will download the update two times.
+
 ### `autoUpdater.quitAndInstall()`

 Restarts the app and installs the update after it has been downloaded. It
--- a/docs/api/browser-view.md
+++ b/docs/api/browser-view.md
@@ -1,14 +1,16 @@
-## Class: BrowserView
-
-> Create and control views.
-
-Process: [Main](../glossary.md#main-process)
+# BrowserView

 A `BrowserView` can be used to embed additional web content into a
 [`BrowserWindow`](browser-window.md). It is like a child window, except that it is positioned
 relative to its owning window. It is meant to be an alternative to the
 `webview` tag.

+## Class: BrowserView
+
+> Create and control views.
+
+Process: [Main](../glossary.md#main-process)
+
 ### Example

 ```javascript
--- a/docs/api/browser-window-proxy.md
+++ b/docs/api/browser-window-proxy.md
@@ -2,7 +2,8 @@

 > Manipulate the child browser window

-Process: [Renderer](../glossary.md#renderer-process)
+Process: [Renderer](../glossary.md#renderer-process)<br />
+_This class is not exported from the `'electron'` module. It is only available as a return value of other methods in the Electron API._

 The `BrowserWindowProxy` object is returned from `window.open` and provides
 limited functionality with the child window.
--- a/docs/api/browser-window.md
+++ b/docs/api/browser-window.md
@@ -14,7 +14,7 @@ const win = new BrowserWindow({ width: 800, height: 600 })
 win.loadURL('https://github.com')

 // Or load a local HTML file
-win.loadURL(`file://${__dirname}/app/index.html`)
+win.loadFile('index.html')
 ```

 ## Frameless window
@@ -187,9 +187,9 @@ It creates a new `BrowserWindow` with native properties as set by the `options`.
  * `parent` BrowserWindow (optional) - Specify parent window. Default is `null`.
  * `modal` Boolean (optional) - Whether this is a modal window. This only works when the
    window is a child window. Default is `false`.
-  * `acceptFirstMouse` Boolean (optional) - Whether the web view accepts a single
-    mouse-down event that simultaneously activates the window. Default is
-    `false`.
+  * `acceptFirstMouse` Boolean (optional) - Whether clicking an inactive window will also
+  click through to the web contents. Default is `false` on macOS. This option is not
+  configurable on other platforms.
  * `disableAutoHideCursor` Boolean (optional) - Whether to hide cursor when typing.
    Default is `false`.
  * `autoHideMenuBar` Boolean (optional) - Auto hide the menu bar unless the `Alt`
@@ -213,30 +213,29 @@ It creates a new `BrowserWindow` with native properties as set by the `options`.
    * `followWindow` - The backdrop should automatically appear active when the window is active, and inactive when it is not. This is the default.
    * `active` - The backdrop should always appear active.
    * `inactive` - The backdrop should always appear inactive.
-  * `titleBarStyle` String (optional) - The style of window title bar.
+  * `titleBarStyle` String (optional) _macOS_ _Windows_ - The style of window title bar.
    Default is `default`. Possible values are:
-    * `default` - Results in the standard gray opaque Mac title
-      bar.
-    * `hidden` - Results in a hidden title bar and a full size content window, yet
-      the title bar still has the standard window controls ("traffic lights") in
-      the top left.
-    * `hiddenInset` - Results in a hidden title bar with an alternative look
+    * `default` - Results in the standard title bar for macOS or Windows respectively.
+    * `hidden` - Results in a hidden title bar and a full size content window. On macOS, the window still has the standard window controls (“traffic lights”) in the top left. On Windows, when combined with `titleBarOverlay: true` it will activate the Window Controls Overlay (see `titleBarOverlay` for more information), otherwise no window controls will be shown.
+    * `hiddenInset` - Only on macOS, results in a hidden title bar with an alternative look
      where the traffic light buttons are slightly more inset from the window edge.
-    * `customButtonsOnHover` Boolean (optional) - Draw custom close,
-      and minimize buttons on macOS frameless windows. These buttons will not display
-      unless hovered over in the top left of the window. These custom buttons prevent
-      issues with mouse events that occur with the standard window toolbar buttons.
-      **Note:** This option is currently experimental.
-  * `trafficLightPosition` [Point](structures/point.md) (optional) - Set a custom position for the traffic light buttons. Can only be used with `titleBarStyle` set to `hidden`
-  * `fullscreenWindowTitle` Boolean (optional) - Shows the title in the
-    title bar in full screen mode on macOS for all `titleBarStyle` options.
+    * `customButtonsOnHover` - Only on macOS, results in a hidden title bar and a full size
+      content window, the traffic light buttons will display when being hovered
+      over in the top left of the window.  **Note:** This option is currently
+      experimental.
+  * `trafficLightPosition` [Point](structures/point.md) (optional) - Set a
+    custom position for the traffic light buttons in frameless windows.
+  * `roundedCorners` Boolean (optional) - Whether frameless window should have
+    rounded corners on macOS. Default is `true`.
+  * `fullscreenWindowTitle` Boolean (optional) _Deprecated_ - Shows the title in
+    the title bar in full screen mode on macOS for `hiddenInset` titleBarStyle.
    Default is `false`.
  * `thickFrame` Boolean (optional) - Use `WS_THICKFRAME` style for frameless windows on
    Windows, which adds standard window frame. Setting it to `false` will remove
    window shadow and window animations. Default is `true`.
  * `vibrancy` String (optional) - Add a type of vibrancy effect to the window, only on
    macOS. Can be `appearance-based`, `light`, `dark`, `titlebar`, `selection`,
-    `menu`, `popover`, `sidebar`, `medium-light`, `ultra-dark`, `header`, `sheet`, `window`, `hud`, `fullscreen-ui`, `tooltip`, `content`, `under-window`, or `under-page`.  Please note that using `frame: false` in combination with a vibrancy value requires that you use a non-default `titleBarStyle` as well. Also note that `appearance-based`, `light`, `dark`, `medium-light`, and `ultra-dark` have been deprecated and will be removed in an upcoming version of macOS.
+    `menu`, `popover`, `sidebar`, `medium-light`, `ultra-dark`, `header`, `sheet`, `window`, `hud`, `fullscreen-ui`, `tooltip`, `content`, `under-window`, or `under-page`. Please note that `appearance-based`, `light`, `dark`, `medium-light`, and `ultra-dark` are deprecated and have been removed in macOS Catalina (10.15).
  * `zoomToPageWidth` Boolean (optional) - Controls the behavior on macOS when
    option-clicking the green stoplight button on the toolbar or by clicking the
    Window > Zoom menu item. If `true`, the window will grow to the preferred
@@ -265,14 +264,12 @@ It creates a new `BrowserWindow` with native properties as set by the `options`.
      be the absolute file path to the script.
      When node integration is turned off, the preload script can reintroduce
      Node global symbols back to the global scope. See example
-      [here](process.md#event-loaded).
+      [here](context-bridge.md#exposing-node-global-symbols).
    * `sandbox` Boolean (optional) - If set, this will sandbox the renderer
      associated with the window, making it compatible with the Chromium
      OS-level sandbox and disabling the Node.js engine. This is not the same as
      the `nodeIntegration` option and the APIs available to the preload script
-      are more limited. Read more about the option [here](sandbox-option.md).
-    * `enableRemoteModule` Boolean (optional) - Whether to enable the [`remote`](remote.md) module.
-      Default is `false`.
+      are more limited. Read more about the option [here](../tutorial/sandbox.md).
    * `session` [Session](session.md#class-session) (optional) - Sets the session used by the
      page. Instead of passing the Session object directly, you can also choose to
      use the `partition` option instead, which accepts a partition string. When
@@ -284,13 +281,6 @@ It creates a new `BrowserWindow` with native properties as set by the `options`.
      same `partition`. If there is no `persist:` prefix, the page will use an
      in-memory session. By assigning the same `partition`, multiple pages can share
      the same session. Default is the default session.
-    * `affinity` String (optional) - When specified, web pages with the same
-      `affinity` will run in the same renderer process. Note that due to reusing
-      the renderer process, certain `webPreferences` options will also be shared
-      between the web pages even when you specified different values for them,
-      including but not limited to `preload`, `sandbox` and `nodeIntegration`.
-      So it is suggested to use exact same `webPreferences` for web pages with
-      the same `affinity`. _Deprecated_
    * `zoomFactor` Number (optional) - The default zoom factor of the page, `3.0` represents
      `300%`. Default is `1.0`.
    * `javascript` Boolean (optional) - Enables JavaScript support. Default is `true`.
@@ -301,6 +291,7 @@ It creates a new `BrowserWindow` with native properties as set by the `options`.
    * `allowRunningInsecureContent` Boolean (optional) - Allow an https page to run
      JavaScript, CSS or plugins from http URLs. Default is `false`.
    * `images` Boolean (optional) - Enables image support. Default is `true`.
+    * `imageAnimationPolicy` String (optional) - Specifies how to run image animations (E.g. GIFs).  Can be `animate`, `animateOnce` or `noAnimation`.  Default is `animate`.
    * `textAreasAreResizable` Boolean (optional) - Make TextArea elements resizable. Default
      is `true`.
    * `webgl` Boolean (optional) - Enables WebGL support. Default is `true`.
@@ -337,7 +328,7 @@ It creates a new `BrowserWindow` with native properties as set by the `options`.
      more details.
    * `contextIsolation` Boolean (optional) - Whether to run Electron APIs and
      the specified `preload` script in a separate JavaScript context. Defaults
-      to `false`. The context that the `preload` script runs in will only have
+      to `true`. The context that the `preload` script runs in will only have
      access to its own dedicated `document` and `window` globals, as well as
      its own set of JavaScript builtins (`Array`, `Object`, `JSON`, etc.),
      which are all invisible to the loaded content. The Electron API will only
@@ -348,13 +339,9 @@ It creates a new `BrowserWindow` with native properties as set by the `options`.
      [Chrome Content Scripts][chrome-content-scripts].  You can access this
      context in the dev tools by selecting the 'Electron Isolated Context'
      entry in the combo box at the top of the Console tab.
-    * `worldSafeExecuteJavaScript` Boolean (optional) - If true, values returned from `webFrame.executeJavaScript` will be sanitized to ensure JS values
-      can't unsafely cross between worlds when using `contextIsolation`.  The default
-      is `false`. In Electron 12, the default will be changed to `true`. _Deprecated_
    * `nativeWindowOpen` Boolean (optional) - Whether to use native
-      `window.open()`. Defaults to `false`. Child windows will always have node
-      integration disabled unless `nodeIntegrationInSubFrames` is true. **Note:** This option is currently
-      experimental.
+      `window.open()`. Defaults to `true`. Child windows will always have node
+      integration disabled unless `nodeIntegrationInSubFrames` is true.
    * `webviewTag` Boolean (optional) - Whether to enable the [`<webview>` tag](webview-tag.md).
      Defaults to `false`. **Note:** The
      `preload` script configured for the `<webview>` will have node integration
@@ -402,6 +389,9 @@ It creates a new `BrowserWindow` with native properties as set by the `options`.
      contain the layout of the document—without requiring scrolling. Enabling
      this will cause the `preferred-size-changed` event to be emitted on the
      `WebContents` when the preferred size changes. Default is `false`.
+  * `titleBarOverlay` Object | Boolean (optional) -  When using a frameless window in conjuction with `win.setWindowButtonVisibility(true)` on macOS or using a `titleBarStyle` so that the standard window controls ("traffic lights" on macOS) are visible, this property enables the Window Controls Overlay [JavaScript APIs][overlay-javascript-apis] and [CSS Environment Variables][overlay-css-env-vars]. Specifying `true` will result in an overlay with default system colors. Default is `false`.
+    * `color` String (optional) _Windows_ - The CSS color of the Window Controls Overlay when enabled. Default is the system color.
+    * `symbolColor` String (optional) _Windows_ - The CSS color of the symbols on the Window Controls Overlay when enabled. Default is the system color.

 When setting minimum or maximum window size with `minWidth`/`maxWidth`/
 `minHeight`/`maxHeight`, it only constrains the users. It won't prevent you from
@@ -534,11 +524,20 @@ Returns:

 * `event` Event
 * `newBounds` [Rectangle](structures/rectangle.md) - Size the window is being resized to.
+* `details` Object
+  * `edge` (String) - The edge of the window being dragged for resizing. Can be `bottom`, `left`, `right`, `top-left`, `top-right`, `bottom-left` or `bottom-right`.

 Emitted before the window is resized. Calling `event.preventDefault()` will prevent the window from being resized.

 Note that this is only emitted when the window is being resized manually. Resizing the window with `setBounds`/`setSize` will not emit this event.

+The possible values and behaviors of the `edge` option are platform dependent. Possible values are:
+
+* On Windows, possible values are `bottom`, `top`, `left`, `right`, `top-left`, `top-right`, `bottom-left`, `bottom-right`.
+* On macOS, possible values are `bottom` and `right`.
+  * The value `bottom` is used to denote vertical resizing.
+  * The value `right` is used to denote horizontal resizing.
+
 #### Event: 'resize'

 Emitted after the window has been resized.
@@ -723,94 +722,6 @@ Returns `BrowserWindow | null` - The window that owns the given `browserView`. I

 Returns `BrowserWindow | null` - The window with the given `id`.

-#### `BrowserWindow.addExtension(path)` _Deprecated_
-
-* `path` String
-
-Adds Chrome extension located at `path`, and returns extension's name.
-
-The method will also not return if the extension's manifest is missing or incomplete.
-
-**Note:** This API cannot be called before the `ready` event of the `app` module
-is emitted.
-
-**Note:** This method is deprecated. Instead, use
-[`ses.loadExtension(path)`](session.md#sesloadextensionpath).
-
-#### `BrowserWindow.removeExtension(name)` _Deprecated_
-
-* `name` String
-
-Remove a Chrome extension by name.
-
-**Note:** This API cannot be called before the `ready` event of the `app` module
-is emitted.
-
-**Note:** This method is deprecated. Instead, use
-[`ses.removeExtension(extension_id)`](session.md#sesremoveextensionextensionid).
-
-#### `BrowserWindow.getExtensions()` _Deprecated_
-
-Returns `Record<String, ExtensionInfo>` - The keys are the extension names and each value is
-an Object containing `name` and `version` properties.
-
-**Note:** This API cannot be called before the `ready` event of the `app` module
-is emitted.
-
-**Note:** This method is deprecated. Instead, use
-[`ses.getAllExtensions()`](session.md#sesgetallextensions).
-
-#### `BrowserWindow.addDevToolsExtension(path)` _Deprecated_
-
-* `path` String
-
-Adds DevTools extension located at `path`, and returns extension's name.
-
-The extension will be remembered so you only need to call this API once, this
-API is not for programming use. If you try to add an extension that has already
-been loaded, this method will not return and instead log a warning to the
-console.
-
-The method will also not return if the extension's manifest is missing or incomplete.
-
-**Note:** This API cannot be called before the `ready` event of the `app` module
-is emitted.
-
-**Note:** This method is deprecated. Instead, use
-[`ses.loadExtension(path)`](session.md#sesloadextensionpath).
-
-#### `BrowserWindow.removeDevToolsExtension(name)` _Deprecated_
-
-* `name` String
-
-Remove a DevTools extension by name.
-
-**Note:** This API cannot be called before the `ready` event of the `app` module
-is emitted.
-
-**Note:** This method is deprecated. Instead, use
-[`ses.removeExtension(extension_id)`](session.md#sesremoveextensionextensionid).
-
-#### `BrowserWindow.getDevToolsExtensions()` _Deprecated_
-
-Returns `Record<string, ExtensionInfo>` - The keys are the extension names and each value is
-an Object containing `name` and `version` properties.
-
-To check if a DevTools extension is installed you can run the following:
-
-```javascript
-const { BrowserWindow } = require('electron')
-
-const installed = 'devtron' in BrowserWindow.getDevToolsExtensions()
-console.log(installed)
-```
-
-**Note:** This API cannot be called before the `ready` event of the `app` module
-is emitted.
-
-**Note:** This method is deprecated. Instead, use
-[`ses.getAllExtensions()`](session.md#sesgetallextensions).
-
 ### Instance Properties

 Objects created with `new BrowserWindow` have the following properties:
@@ -849,6 +760,10 @@ A `Boolean` property that determines whether the window is in simple (pre-Lion)

 A `Boolean` property that determines whether the window is in fullscreen mode.

+#### `win.focusable` _Windows_ _macOS_
+
+A `Boolean` property that determines whether the window is focusable.
+
 #### `win.visibleOnAllWorkspaces`

 A `Boolean` property that determines whether the window is visible on all workspaces.
@@ -1051,7 +966,7 @@ Returns `Boolean` - Whether the window is in simple (pre-Lion) fullscreen mode.

 Returns `Boolean` - Whether the window is in normal state (not maximized, not minimized, not in fullscreen mode).

-#### `win.setAspectRatio(aspectRatio[, extraSize])` _macOS_ _Linux_
+#### `win.setAspectRatio(aspectRatio[, extraSize])`

 * `aspectRatio` Float - The aspect ratio to maintain for some portion of the
 content view.
@@ -1072,6 +987,9 @@ the player itself we would call this function with arguments of 16/9 and
 are within the content view--only that they exist. Sum any extra width and
 height areas you have within the overall content view.

+The aspect ratio is not respected when window is resized programmingly with
+APIs like `win.setSize`.
+
 #### `win.setBackgroundColor(backgroundColor)`

 * `backgroundColor` String - Window's background color as a hexadecimal value,
@@ -1384,7 +1302,7 @@ can be be used to listen to changes to tablet mode.

 #### `win.getMediaSourceId()`

-Returns `String` - Window id in the format of DesktopCapturerSource's id. For example "window:1234:0".
+Returns `String` - Window id in the format of DesktopCapturerSource's id. For example "window:1324:0".

 More precisely the format is `window:id:other_id` where `id` is `HWND` on
 Windows, `CGWindowID` (`uint64_t`) on macOS and `Window` (`unsigned long`) on
@@ -1402,6 +1320,8 @@ The native type of the handle is `HWND` on Windows, `NSView*` on macOS, and

 * `message` Integer
 * `callback` Function
+  * `wParam` any - The `wParam` provided to the WndProc
+  * `lParam` any - The `lParam` provided to the WndProc

 Hooks a windows message. The `callback` is called when
 the message is received in the WndProc.
@@ -1454,7 +1374,7 @@ Returns `Boolean` - Whether the window's document has been edited.

 Returns `Promise<NativeImage>` - Resolves with a [NativeImage](native-image.md)

-Captures a snapshot of the page within `rect`. Omitting `rect` will capture the whole visible page.
+Captures a snapshot of the page within `rect`. Omitting `rect` will capture the whole visible page. If the page is not visible, `rect` may be empty.

 #### `win.loadURL(url[, options])`

@@ -1463,7 +1383,7 @@ Captures a snapshot of the page within `rect`. Omitting `rect` will capture the
  * `httpReferrer` (String | [Referrer](structures/referrer.md)) (optional) - An HTTP Referrer URL.
  * `userAgent` String (optional) - A user agent originating the request.
  * `extraHeaders` String (optional) - Extra headers separated by "\n"
-  * `postData` ([UploadRawData[]](structures/upload-raw-data.md) | [UploadFile[]](structures/upload-file.md)) (optional)
+  * `postData` ([UploadRawData](structures/upload-raw-data.md) | [UploadFile](structures/upload-file.md))[] (optional)
  * `baseURLForDataURL` String (optional) - Base URL (with trailing path separator) for files to be loaded by the data URL. This is needed only if the specified `url` is a data URL and needs to load other files.

 Returns `Promise<void>` - the promise will resolve when the page has finished loading
@@ -1681,8 +1601,6 @@ Changes window icon.

 Sets whether the window traffic light buttons should be visible.

-This cannot be called when `titleBarStyle` is set to `customButtonsOnHover`.
-
 #### `win.setAutoHideMenuBar(hide)`

 * `hide` Boolean
@@ -1711,7 +1629,14 @@ Returns `Boolean` - Whether the menu bar is visible.
 * `visible` Boolean
 * `options` Object (optional)
  * `visibleOnFullScreen` Boolean (optional) _macOS_ - Sets whether
-    the window should be visible above fullscreen windows
+    the window should be visible above fullscreen windows.
+  * `skipTransformProcessType` Boolean (optional) _macOS_ - Calling
+    setVisibleOnAllWorkspaces will by default transform the process
+    type between UIElementApplication and ForegroundApplication to
+    ensure the correct behavior. However, this will hide the window
+    and dock for a short time every time it is called. If your window
+    is already of type UIElementApplication, you can bypass this
+    transformation by passing true to skipTransformProcessType.

 Sets whether the window should be visible on all workspaces.

@@ -1757,6 +1682,10 @@ Changes whether the window can be focused.

 On macOS it does not remove the focus from the window.

+#### `win.isFocusable()` _macOS_ _Windows_
+
+Returns whether the window can be focused.
+
 #### `win.setParentWindow(parent)`

 * `parent` BrowserWindow | null
@@ -1825,12 +1754,12 @@ deprecated and will be removed in an upcoming version of macOS.

 * `position` [Point](structures/point.md)

-Set a custom position for the traffic light buttons. Can only be used with `titleBarStyle` set to `hidden`.
+Set a custom position for the traffic light buttons in frameless window.

 #### `win.getTrafficLightPosition()` _macOS_

-Returns `Point` - The current position for the traffic light buttons. Can only be used with `titleBarStyle`
-set to `hidden`.
+Returns `Point` - The custom position for the traffic light buttons in
+frameless window.

 #### `win.setTouchBar(touchBar)` _macOS_

@@ -1864,6 +1793,13 @@ Replacement API for setBrowserView supporting work with multi browser views.

 * `browserView` [BrowserView](browser-view.md)

+#### `win.setTopBrowserView(browserView)` _Experimental_
+
+* `browserView` [BrowserView](browser-view.md)
+
+Raises `browserView` above other `BrowserView`s attached to `win`.
+Throws an error if `browserView` is not attached to `win`.
+
 #### `win.getBrowserViews()` _Experimental_

 Returns `BrowserView[]` - an array of all BrowserViews that have been attached
@@ -1879,3 +1815,5 @@ removed in future Electron releases.
 [window-levels]: https://developer.apple.com/documentation/appkit/nswindow/level
 [chrome-content-scripts]: https://developer.chrome.com/extensions/content_scripts#execution-environment
 [event-emitter]: https://nodejs.org/api/events.html#events_class_eventemitter
+[overlay-javascript-apis]: https://github.com/WICG/window-controls-overlay/blob/main/explainer.md#javascript-apis
+[overlay-css-env-vars]: https://github.com/WICG/window-controls-overlay/blob/main/explainer.md#css-environment-variables
--- a/docs/api/client-request.md
+++ b/docs/api/client-request.md
@@ -2,7 +2,8 @@

 > Make HTTP/HTTPS requests.

-Process: [Main](../glossary.md#main-process)
+Process: [Main](../glossary.md#main-process)<br />
+_This class is not exported from the `'electron'` module. It is only available as a return value of other methods in the Electron API._

 `ClientRequest` implements the [Writable Stream](https://nodejs.org/api/stream.html#stream_writable_streams)
 interface and is therefore an [EventEmitter][event-emitter].
@@ -71,7 +72,7 @@ const request = net.request({

 Returns:

-* `response` IncomingMessage - An object representing the HTTP response message.
+* `response` [IncomingMessage](incoming-message.md) - An object representing the HTTP response message.

 #### Event: 'login'

--- a/docs/api/clipboard.md
+++ b/docs/api/clipboard.md
@@ -131,15 +131,15 @@ Returns `Object`:

 Returns an Object containing `title` and `url` keys representing the bookmark in
 the clipboard. The `title` and `url` values will be empty strings when the
-bookmark is unavailable.
+bookmark is unavailable.  The `title` value will always be empty on Windows.

 ### `clipboard.writeBookmark(title, url[, type])` _macOS_ _Windows_

-* `title` String
+* `title` String - Unused on Windows
 * `url` String
 * `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.

-Writes the `title` and `url` into the clipboard as a bookmark.
+Writes the `title` (macOS only) and `url` into the clipboard as a bookmark.

 **Note:** Most apps on Windows don't support pasting bookmarks into them so
 you can use `clipboard.write` to write both a bookmark and fallback text to the
@@ -199,7 +199,7 @@ const { clipboard } = require('electron')

 const hasFormat = clipboard.has('<p>selection</p>')
 console.log(hasFormat)
-// 'true' or 'false
+// 'true' or 'false'
 ```

 ### `clipboard.read(format)` _Experimental_
@@ -208,6 +208,10 @@ console.log(hasFormat)

 Returns `String` - Reads `format` type from the clipboard.

+`format` should contain valid ASCII characters and have `/` separator.
+`a/c`, `a/bc` are valid formats while `/abc`, `abc/`, `a/`, `/a`, `a`
+are not valid.
+
 ### `clipboard.readBuffer(format)` _Experimental_

 * `format` String
@@ -218,9 +222,9 @@ Returns `Buffer` - Reads `format` type from the clipboard.
 const { clipboard } = require('electron')

 const buffer = Buffer.from('this is binary', 'utf8')
-clipboard.writeBuffer('public.utf8-plain-text', buffer)
+clipboard.writeBuffer('public/utf8-plain-text', buffer)

-const ret = clipboard.readBuffer('public.utf8-plain-text')
+const ret = clipboard.readBuffer('public/utf8-plain-text')

 console.log(buffer.equals(out))
 // true
@@ -238,7 +242,7 @@ Writes the `buffer` into the clipboard as `format`.
 const { clipboard } = require('electron')

 const buffer = Buffer.from('writeBuffer', 'utf8')
-clipboard.writeBuffer('public.utf8-plain-text', buffer)
+clipboard.writeBuffer('public/utf8-plain-text', buffer)
 ```

 ### `clipboard.write(data[, type])`
--- a/docs/api/command-line-switches.md
+++ b/docs/api/command-line-switches.md
@@ -65,20 +65,30 @@ Forces the maximum disk space to be used by the disk cache, in bytes.

 Enables caller stack logging for the following APIs (filtering events):

- `desktopCapturer.getSources()` / `desktop-capturer-get-sources`
- `remote.require()` / `remote-require`
- `remote.getGlobal()` / `remote-get-builtin`
- `remote.getBuiltin()` / `remote-get-global`
- `remote.getCurrentWindow()` / `remote-get-current-window`
- `remote.getCurrentWebContents()` / `remote-get-current-web-contents`
+* `desktopCapturer.getSources()` / `desktop-capturer-get-sources`

-### --enable-logging
+### --enable-logging[=file]

-Prints Chromium's logging into console.
+Prints Chromium's logging to stderr (or a log file).

-This switch can not be used in `app.commandLine.appendSwitch` since it is parsed
-earlier than user's app is loaded, but you can set the `ELECTRON_ENABLE_LOGGING`
-environment variable to achieve the same effect.
+The `ELECTRON_ENABLE_LOGGING` environment variable has the same effect as
+passing `--enable-logging`.
+
+Passing `--enable-logging` will result in logs being printed on stderr.
+Passing `--enable-logging=file` will result in logs being saved to the file
+specified by `--log-file=...`, or to `electron_debug.log` in the user-data
+directory if `--log-file` is not specified.
+
+> **Note:** On Windows, logs from child processes cannot be sent to stderr.
+> Logging to a file is the most reliable way to collect logs on Windows.
+
+See also `--log-file`, `--log-level`, `--v`, and `--vmodule`.
+
+### --force-fieldtrials=`trials`
+
+Field trials to be forcefully enabled or disabled.
+
+For example: `WebRTC-Audio-Red-For-Opus/Enabled/`

 ### --host-rules=`rules`

@@ -125,10 +135,37 @@ See the [Node.js documentation][node-cli] or run `node --help` in your terminal

 Set a custom locale.

+### --log-file=`path`
+
+If `--enable-logging` is specified, logs will be written to the given path. The
+parent directory must exist.
+
+Setting the `ELECTRON_LOG_FILE` environment variable is equivalent to passing
+this flag. If both are present, the command-line switch takes precedence.
+
 ### --log-net-log=`path`

 Enables net log events to be saved and writes them to `path`.

+### --log-level=`N`
+
+Sets the verbosity of logging when used together with `--enable-logging`.
+`N` should be one of [Chrome's LogSeverities][severities].
+
+Note that two complimentary logging mechanisms in Chromium -- `LOG()`
+and `VLOG()` -- are controlled by different switches. `--log-level`
+controls `LOG()` messages, while `--v` and `--vmodule` control `VLOG()`
+messages. So you may want to use a combination of these three switches
+depending on the granularity you want and what logging calls are made
+by the code you're trying to watch.
+
+See [Chromium Logging source][logging] for more information on how
+`LOG()` and `VLOG()` interact. Loosely speaking, `VLOG()` can be thought
+of as sub-levels / per-module levels inside `LOG(INFO)` to control the
+firehose of `LOG(INFO)` data.
+
+See also `--enable-logging`, `--log-level`, `--v`, and `--vmodule`.
+
 ### --no-proxy-server

 Don't use a proxy server and always make direct connections. Overrides any other
@@ -136,7 +173,8 @@ proxy server flags that are passed.

 ### --no-sandbox

-Disables Chromium sandbox, which is now enabled by default.
+Disables the Chromium [sandbox](https://www.chromium.org/developers/design-documents/sandbox).
+Forces renderer process and Chromium helper processes to run un-sandboxed.
 Should only be used for testing.

 ### --proxy-bypass-list=`hosts`
@@ -179,6 +217,8 @@ positive values are used for V-logging levels.

 This switch only works when `--enable-logging` is also passed.

+See also `--enable-logging`, `--log-level`, and `--vmodule`.
+
 ### --vmodule=`pattern`

 Gives the per-module maximal V-logging levels to override the value given by
@@ -191,6 +231,8 @@ logging level for all code in the source files under a `foo/bar` directory.

 This switch only works when `--enable-logging` is also passed.

+See also `--enable-logging`, `--log-level`, and `--v`.
+
 ### --force_high_performance_gpu

 Force using discrete GPU when there are multiple GPUs available.
@@ -238,4 +280,8 @@ By default inspector websocket url is available in stderr and under /json/list e
 [ready]: app.md#event-ready
 [play-silent-audio]: https://github.com/atom/atom/pull/9485/files
 [debugging-main-process]: ../tutorial/debugging-main-process.md
+[logging]: https://source.chromium.org/chromium/chromium/src/+/master:base/logging.h
 [node-cli]: https://nodejs.org/api/cli.html
+[play-silent-audio]: https://github.com/atom/atom/pull/9485/files
+[ready]: app.md#event-ready
+[severities]: https://source.chromium.org/chromium/chromium/src/+/master:base/logging.h?q=logging::LogSeverity&ss=chromium
--- a/docs/api/command-line.md
+++ b/docs/api/command-line.md
@@ -2,7 +2,8 @@

 > Manipulate the command line arguments for your app that Chromium reads

-Process: [Main](../glossary.md#main-process)
+Process: [Main](../glossary.md#main-process)<br />
+_This class is not exported from the `'electron'` module. It is only available as a return value of other methods in the Electron API._

 The following example shows how to check if the `--disable-gpu` flag is set.

--- a/docs/api/content-tracing.md
+++ b/docs/api/content-tracing.md
@@ -16,7 +16,7 @@ const { app, contentTracing } = require('electron')
 app.whenReady().then(() => {
  (async () => {
    await contentTracing.startRecording({
-      include_categories: ['*']
+      included_categories: ['*']
    })
    console.log('Tracing started')
    await new Promise(resolve => setTimeout(resolve, 5000))
--- a/docs/api/context-bridge.md
+++ b/docs/api/context-bridge.md
@@ -33,7 +33,7 @@ page you load in your renderer executes code in this world.

 ### Isolated World

-When `contextIsolation` is enabled in your `webPreferences`, your `preload` scripts run in an
+When `contextIsolation` is enabled in your `webPreferences` (this is the default behavior since Electron 12.0.0), your `preload` scripts run in an
 "Isolated World".  You can read more about context isolation and what it affects in the
 [security](../tutorial/security.md#3-enable-context-isolation-for-remote-content) docs.

@@ -41,22 +41,22 @@ When `contextIsolation` is enabled in your `webPreferences`, your `preload` scri

 The `contextBridge` module has the following methods:

-### `contextBridge.exposeInMainWorld(apiKey, api)` _Experimental_
+### `contextBridge.exposeInMainWorld(apiKey, api)`

 * `apiKey` String - The key to inject the API onto `window` with.  The API will be accessible on `window[apiKey]`.
-* `api` Record<String, any> - Your API object, more information on what this API can be and how it works is available below.
+* `api` any - Your API, more information on what this API can be and how it works is available below.

 ## Usage

-### API Objects
+### API

-The `api` object provided to [`exposeInMainWorld`](#contextbridgeexposeinmainworldapikey-api-experimental) must be an object
+The `api` provided to [`exposeInMainWorld`](#contextbridgeexposeinmainworldapikey-api) must be a `Function`, `String`, `Number`, `Array`, `Boolean`, or an object
 whose keys are strings and values are a `Function`, `String`, `Number`, `Array`, `Boolean`, or another nested object that meets the same conditions.

 `Function` values are proxied to the other context and all other values are **copied** and **frozen**. Any data / primitives sent in
-the API object become immutable and updates on either side of the bridge do not result in an update on the other side.
+the API become immutable and updates on either side of the bridge do not result in an update on the other side.

-An example of a complex API object is shown below:
+An example of a complex API is shown below:

 ```javascript
 const { contextBridge } = require('electron')
@@ -106,6 +106,27 @@ has been included below for completeness:
 | `Promise` | Complex | ✅ | ✅ | Promises are only proxied if they are the return value or exact parameter.  Promises nested in arrays or objects will be dropped. |
 | `Function` | Complex | ✅ | ✅ | Prototype modifications are dropped.  Sending classes or constructors will not work. |
 | [Cloneable Types](https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Structured_clone_algorithm) | Simple | ✅ | ✅ | See the linked document on cloneable types |
+| `Element` | Complex | ✅ | ✅ | Prototype modifications are dropped.  Sending custom elements will not work. |
+| `Blob` | Complex | ✅ | ✅ | N/A |
 | `Symbol` | N/A | ❌ | ❌ | Symbols cannot be copied across contexts so they are dropped |

 If the type you care about is not in the above table, it is probably not supported.
+
+### Exposing Node Global Symbols
+
+The `contextBridge` can be used by the preload script to give your renderer access to Node APIs.
+The table of supported types described above also applies to Node APIs that you expose through `contextBridge`.
+Please note that many Node APIs grant access to local system resources.
+Be very cautious about which globals and APIs you expose to untrusted remote content.
+
+```javascript
+const { contextBridge } = require('electron')
+const crypto = require('crypto')
+contextBridge.exposeInMainWorld('nodeCrypto', {
+  sha256sum (data) {
+    const hash = crypto.createHash('sha256')
+    hash.update(data)
+    return hash.digest('hex')
+  }
+})
+```
--- a/docs/api/cookies.md
+++ b/docs/api/cookies.md
@@ -2,7 +2,8 @@

 > Query and modify a session's cookies.

-Process: [Main](../glossary.md#main-process)
+Process: [Main](../glossary.md#main-process)<br />
+_This class is not exported from the `'electron'` module. It is only available as a return value of other methods in the Electron API._

 Instances of the `Cookies` class are accessed by using `cookies` property of
 a `Session`.
@@ -45,6 +46,8 @@ The following events are available on instances of `Cookies`:

 #### Event: 'changed'

+Returns:
+
 * `event` Event
 * `cookie` [Cookie](structures/cookie.md) - The cookie that was changed.
 * `cause` String - The cause of the change with one of the following values:
@@ -90,7 +93,7 @@ the response.
  * `domain` String (optional) - The domain of the cookie; this will be normalized with a preceding dot so that it's also valid for subdomains. Empty by default if omitted.
  * `path` String (optional) - The path of the cookie. Empty by default if omitted.
  * `secure` Boolean (optional) - Whether the cookie should be marked as Secure. Defaults to
-    false.
+    false unless [Same Site=None](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Set-Cookie/SameSite#samesitenone_requires_secure) attribute is used.
  * `httpOnly` Boolean (optional) - Whether the cookie should be marked as HTTP only.
    Defaults to false.
  * `expirationDate` Double (optional) - The expiration date of the cookie as the number of
--- a/docs/api/crash-reporter.md
+++ b/docs/api/crash-reporter.md
@@ -19,6 +19,9 @@ following projects:
 * [socorro](https://github.com/mozilla/socorro)
 * [mini-breakpad-server](https://github.com/electron/mini-breakpad-server)

+> **Note:** Electron uses Crashpad, not Breakpad, to collect and upload
+> crashes, but for the time being, the [upload protocol is the same](https://chromium.googlesource.com/crashpad/crashpad/+/HEAD/doc/overview_design.md#Upload-to-collection-server).
+
 Or use a 3rd party hosted solution:

 * [Backtrace](https://backtrace.io/electron/)
@@ -26,49 +29,12 @@ Or use a 3rd party hosted solution:
 * [BugSplat](https://www.bugsplat.com/docs/platforms/electron)

 Crash reports are stored temporarily before being uploaded in a directory
-underneath the app's user data directory (called 'Crashpad' on Windows and Mac,
-or 'Crash Reports' on Linux). You can override this directory by calling
-`app.setPath('crashDumps', '/path/to/crashes')` before starting the crash
-reporter.
+underneath the app's user data directory, called 'Crashpad'. You can override
+this directory by calling `app.setPath('crashDumps', '/path/to/crashes')`
+before starting the crash reporter.

-On Windows and macOS, Electron uses
-[crashpad](https://chromium.googlesource.com/crashpad/crashpad/+/master/README.md)
-to monitor and report crashes. On Linux, Electron uses
-[breakpad](https://chromium.googlesource.com/breakpad/breakpad/+/master/). This
-is an implementation detail driven by Chromium, and it may change in future. In
-particular, crashpad is newer and will likely eventually replace breakpad on
-all platforms.
-
-### Note about Node child processes on Linux
-
-If you are using the Node.js `child_process` module and want to report crashes
-from those processes on Linux, there is an extra step you will need to take to
-properly initialize the crash reporter in the child process. This is not
-necessary on Mac or Windows, as those platforms use Crashpad, which
-automatically monitors child processes.
-
-Since `require('electron')` is not available in Node child processes, the
-following APIs are available on the `process` object in Node child processes.
-Note that, on Linux, each Node child process has its own separate instance of
-the breakpad crash reporter. This is dissimilar to renderer child processes,
-which have a "stub" breakpad reporter which returns information to the main
-process for reporting.
-
-#### `process.crashReporter.start(options)`
-
-See [`crashReporter.start()`](#crashreporterstartoptions).
-
-#### `process.crashReporter.getParameters()`
-
-See [`crashReporter.getParameters()`](#crashreportergetparameters).
-
-#### `process.crashReporter.addExtraParameter(key, value)`
-
-See [`crashReporter.addExtraParameter(key, value)`](#crashreporteraddextraparameterkey-value).
-
-#### `process.crashReporter.removeExtraParameter(key)`
-
-See [`crashReporter.removeExtraParameter(key)`](#crashreporterremoveextraparameterkey).
+Electron uses [crashpad](https://chromium.googlesource.com/crashpad/crashpad/+/refs/heads/main/README.md)
+to monitor and report crashes.

 ## Methods

@@ -77,7 +43,8 @@ The `crashReporter` module has the following methods:
 ### `crashReporter.start(options)`

 * `options` Object
-  * `submitURL` String - URL that crash reports will be sent to as POST.
+  * `submitURL` String (optional) - URL that crash reports will be sent to as
+    POST. Required unless `uploadToServer` is `false`.
  * `productName` String (optional) - Defaults to `app.name`.
  * `companyName` String (optional) _Deprecated_ - Deprecated alias for
    `{ globalExtra: { _companyName: ... } }`.
@@ -128,7 +95,7 @@ must be at most 39 bytes long, and values must be no longer than 127 bytes.
 Keys with names longer than the maximum will be silently ignored. Key values
 longer than the maximum length will be truncated.

-**Note:** Calling this method from the renderer process is deprecated.
+**Note:** This method is only available in the main process.

 ### `crashReporter.getLastCrashReport()`

@@ -137,7 +104,7 @@ last crash report. Only crash reports that have been uploaded will be returned;
 even if a crash report is present on disk it will not be returned until it is
 uploaded. In the case that there are no uploaded reports, `null` is returned.

-**Note:** Calling this method from the renderer process is deprecated.
+**Note:** This method is only available in the main process.

 ### `crashReporter.getUploadedReports()`

@@ -146,14 +113,14 @@ Returns [`CrashReport[]`](structures/crash-report.md):
 Returns all uploaded crash reports. Each report contains the date and uploaded
 ID.

-**Note:** Calling this method from the renderer process is deprecated.
+**Note:** This method is only available in the main process.

 ### `crashReporter.getUploadToServer()`

 Returns `Boolean` - Whether reports should be submitted to the server. Set through
 the `start` method or `setUploadToServer`.

-**Note:** Calling this method from the renderer process is deprecated.
+**Note:** This method is only available in the main process.

 ### `crashReporter.setUploadToServer(uploadToServer)`

@@ -162,13 +129,7 @@ the `start` method or `setUploadToServer`.
 This would normally be controlled by user preferences. This has no effect if
 called before `start` is called.

-**Note:** Calling this method from the renderer process is deprecated.
-
-### `crashReporter.getCrashesDirectory()` _Deprecated_
-
-Returns `String` - The directory where crashes are temporarily stored before being uploaded.
-
-**Note:** This method is deprecated, use `app.getPath('crashDumps')` instead.
+**Note:** This method is only available in the main process.

 ### `crashReporter.addExtraParameter(key, value)`

@@ -191,12 +152,6 @@ names must be no longer than 39 bytes, and values must be no longer than 20320
 bytes. Keys with names longer than the maximum will be silently ignored. Key
 values longer than the maximum length will be truncated.

-**Note:** On linux values that are longer than 127 bytes will be chunked into
-multiple keys, each 127 bytes in length.  E.g. `addExtraParameter('foo', 'a'.repeat(130))`
-will result in two chunked keys `foo__1` and `foo__2`, the first will contain
-the first 127 bytes and the second will contain the remaining 3 bytes.  On
-your crash reporting backend you should stitch together keys in this format.
-
 ### `crashReporter.removeExtraParameter(key)`

 * `key` String - Parameter key, must be no longer than 39 bytes.
@@ -208,6 +163,32 @@ will not include this parameter.

 Returns `Record<String, String>` - The current 'extra' parameters of the crash reporter.

+## In Node child processes
+
+Since `require('electron')` is not available in Node child processes, the
+following APIs are available on the `process` object in Node child processes.
+
+#### `process.crashReporter.start(options)`
+
+See [`crashReporter.start()`](#crashreporterstartoptions).
+
+Note that if the crash reporter is started in the main process, it will
+automatically monitor child processes, so it should not be started in the child
+process. Only use this method if the main process does not initialize the crash
+reporter.
+
+#### `process.crashReporter.getParameters()`
+
+See [`crashReporter.getParameters()`](#crashreportergetparameters).
+
+#### `process.crashReporter.addExtraParameter(key, value)`
+
+See [`crashReporter.addExtraParameter(key, value)`](#crashreporteraddextraparameterkey-value).
+
+#### `process.crashReporter.removeExtraParameter(key)`
+
+See [`crashReporter.removeExtraParameter(key)`](#crashreporterremoveextraparameterkey).
+
 ## Crash Report Payload

 The crash reporter will send the following data to the `submitURL` as
--- a/docs/api/debugger.md
+++ b/docs/api/debugger.md
@@ -2,7 +2,8 @@

 > An alternate transport for Chrome's remote debugging protocol.

-Process: [Main](../glossary.md#main-process)
+Process: [Main](../glossary.md#main-process)<br />
+_This class is not exported from the `'electron'` module. It is only available as a return value of other methods in the Electron API._

 Chrome Developer Tools has a [special binding][rdp] available at JavaScript
 runtime that allows interacting with pages and instrumenting them.
--- a/docs/api/dialog.md
+++ b/docs/api/dialog.md
@@ -24,7 +24,7 @@ The `dialog` module has the following methods:
  * `buttonLabel` String (optional) - Custom label for the confirmation button, when
    left empty the default label will be used.
  * `filters` [FileFilter[]](structures/file-filter.md) (optional)
-  * `properties` String[] (optional) - Contains which features the dialog should
+  * `properties` String[]&#32;(optional) - Contains which features the dialog should
    use. The following values are supported:
    * `openFile` - Allow files to be selected.
    * `openDirectory` - Allow directories to be selected.
@@ -87,7 +87,7 @@ dialog.showOpenDialogSync(mainWindow, {
  * `buttonLabel` String (optional) - Custom label for the confirmation button, when
    left empty the default label will be used.
  * `filters` [FileFilter[]](structures/file-filter.md) (optional)
-  * `properties` String[] (optional) - Contains which features the dialog should
+  * `properties` String[]&#32;(optional) - Contains which features the dialog should
    use. The following values are supported:
    * `openFile` - Allow files to be selected.
    * `openDirectory` - Allow directories to be selected.
@@ -112,7 +112,7 @@ Returns `Promise<Object>` - Resolve with an object containing the following:

 * `canceled` Boolean - whether or not the dialog was canceled.
 * `filePaths` String[] - An array of file paths chosen by the user. If the dialog is cancelled this will be an empty array.
-* `bookmarks` String[] (optional) _macOS_ _mas_ - An array matching the `filePaths` array of base64 encoded strings which contains security scoped bookmark data. `securityScopedBookmarks` must be enabled for this to be populated. (For return values, see [table here](#bookmarks-array).)
+* `bookmarks` String[]&#32;(optional) _macOS_ _mas_ - An array matching the `filePaths` array of base64 encoded strings which contains security scoped bookmark data. `securityScopedBookmarks` must be enabled for this to be populated. (For return values, see [table here](#bookmarks-array).)

 The `browserWindow` argument allows the dialog to attach itself to a parent window, making it modal.

@@ -154,7 +154,7 @@ dialog.showOpenDialog(mainWindow, {

 * `browserWindow` [BrowserWindow](browser-window.md) (optional)
 * `options` Object
-  * `title` String (optional)
+  * `title` String (optional) - The dialog title. Cannot be displayed on some _Linux_ desktop environments.
  * `defaultPath` String (optional) - Absolute directory path, absolute file
    path, or file name to use by default.
  * `buttonLabel` String (optional) - Custom label for the confirmation button, when
@@ -165,7 +165,7 @@ dialog.showOpenDialog(mainWindow, {
    displayed in front of the filename text field.
  * `showsTagField` Boolean (optional) _macOS_ - Show the tags input box,
    defaults to `true`.
-  * `properties` String[] (optional)
+  * `properties` String[]&#32;(optional)
    * `showHiddenFiles` - Show hidden files in dialog.
    * `createDirectory` _macOS_ - Allow creating new directories from dialog.
    * `treatPackageAsDirectory` _macOS_ - Treat packages, such as `.app` folders,
@@ -185,7 +185,7 @@ The `filters` specifies an array of file types that can be displayed, see

 * `browserWindow` [BrowserWindow](browser-window.md) (optional)
 * `options` Object
-  * `title` String (optional)
+  * `title` String (optional) - The dialog title. Cannot be displayed on some _Linux_ desktop environments.
  * `defaultPath` String (optional) - Absolute directory path, absolute file
    path, or file name to use by default.
  * `buttonLabel` String (optional) - Custom label for the confirmation button, when
@@ -195,7 +195,7 @@ The `filters` specifies an array of file types that can be displayed, see
  * `nameFieldLabel` String (optional) _macOS_ - Custom label for the text
    displayed in front of the filename text field.
  * `showsTagField` Boolean (optional) _macOS_ - Show the tags input box, defaults to `true`.
-  * `properties` String[] (optional)
+  * `properties` String[]&#32;(optional)
    * `showHiddenFiles` - Show hidden files in dialog.
    * `createDirectory` _macOS_ - Allow creating new directories from dialog.
    * `treatPackageAsDirectory` _macOS_ - Treat packages, such as `.app` folders,
@@ -227,16 +227,12 @@ expanding and collapsing the dialog.
  `"warning"`. On Windows, `"question"` displays the same icon as `"info"`, unless
  you set an icon using the `"icon"` option. On macOS, both `"warning"` and
  `"error"` display the same warning icon.
-  * `buttons` String[] (optional) - Array of texts for buttons. On Windows, an empty array
+  * `buttons` String[]&#32;(optional) - Array of texts for buttons. On Windows, an empty array
    will result in one button labeled "OK".
  * `defaultId` Integer (optional) - Index of the button in the buttons array which will
    be selected by default when the message box opens.
  * `title` String (optional) - Title of the message box, some platforms will not show it.
  * `detail` String (optional) - Extra information of the message.
-  * `checkboxLabel` String (optional) - If provided, the message box will
-    include a checkbox with the given label.
-  * `checkboxChecked` Boolean (optional) - Initial checked state of the
-    checkbox. `false` by default.
  * `icon` ([NativeImage](native-image.md) | String) (optional)
  * `cancelId` Integer (optional) - The index of the button to be used to cancel the dialog, via
    the `Esc` key. By default this is assigned to the first button with "cancel" or "no" as the
@@ -273,10 +269,15 @@ If `browserWindow` is not shown dialog will not be attached to it. In such case
  `"warning"`. On Windows, `"question"` displays the same icon as `"info"`, unless
  you set an icon using the `"icon"` option. On macOS, both `"warning"` and
  `"error"` display the same warning icon.
-  * `buttons` String[] (optional) - Array of texts for buttons. On Windows, an empty array
+  * `buttons` String[]&#32;(optional) - Array of texts for buttons. On Windows, an empty array
    will result in one button labeled "OK".
  * `defaultId` Integer (optional) - Index of the button in the buttons array which will
    be selected by default when the message box opens.
+  * `signal` AbortSignal (optional) - Pass an instance of [AbortSignal][] to
+    optionally close the message box, the message box will behave as if it was
+    cancelled by the user. On macOS, `signal` does not work with message boxes
+    that do not have a parent window, since those message boxes run
+    synchronously due to platform limitations.
  * `title` String (optional) - Title of the message box, some platforms will not show it.
  * `detail` String (optional) - Extra information of the message.
  * `checkboxLabel` String (optional) - If provided, the message box will
@@ -364,3 +365,5 @@ window is provided.

 You can call `BrowserWindow.getCurrentWindow().setSheetOffset(offset)` to change
 the offset from the window frame where sheets are attached.
+
+[AbortSignal]: https://nodejs.org/api/globals.html#globals_class_abortsignal
--- a/docs/api/dock.md
+++ b/docs/api/dock.md
@@ -2,7 +2,8 @@

 > Control your app in the macOS dock

-Process: [Main](../glossary.md#main-process)
+Process: [Main](../glossary.md#main-process)<br />
+_This class is not exported from the `'electron'` module. It is only available as a return value of other methods in the Electron API._

 The following example shows how to bounce your icon on the dock.

--- a/docs/api/download-item.md
+++ b/docs/api/download-item.md
@@ -2,7 +2,8 @@

 > Control file downloads from remote sources.

-Process: [Main](../glossary.md#main-process)
+Process: [Main](../glossary.md#main-process)<br />
+_This class is not exported from the `'electron'` module. It is only available as a return value of other methods in the Electron API._

 `DownloadItem` is an [EventEmitter][event-emitter] that represents a download item in Electron.
 It is used in `will-download` event of `Session` class, and allows users to
--- a/docs/api/environment-variables.md
+++ b/docs/api/environment-variables.md
@@ -118,7 +118,38 @@ debugging purposes.

 ### `ELECTRON_ENABLE_LOGGING`

-Prints Chrome's internal logging to the console.
+Prints Chromium's internal logging to the console.
+
+Setting this variable is the same as passing `--enable-logging`
+on the command line. For more info, see `--enable-logging` in [command-line
+switches](./command-line-switches.md#enable-loggingfile).
+
+### `ELECTRON_LOG_FILE`
+
+Sets the file destination for Chromium's internal logging.
+
+Setting this variable is the same as passing `--log-file`
+on the command line. For more info, see `--log-file` in [command-line
+switches](./command-line-switches.md#log-filepath).
+
+### `ELECTRON_DEBUG_DRAG_REGIONS`
+
+Adds coloration to draggable regions on [`BrowserView`](./browser-view.md)s on macOS - draggable regions will be colored
+green and non-draggable regions will be colored red to aid debugging.
+
+### `ELECTRON_DEBUG_NOTIFICATIONS`
+
+Adds extra logs to [`Notification`](./notification.md) lifecycles on macOS to aid in debugging. Extra logging will be displayed when new Notifications are created or activated. They will also be displayed when common a
+tions are taken: a notification is shown, dismissed, its button is clicked, or it is replied to.
+
+Sample output:
+
+```sh
+Notification created (com.github.Electron:notification:EAF7B87C-A113-43D7-8E76-F88EC9D73D44)
+Notification displayed (com.github.Electron:notification:EAF7B87C-A113-43D7-8E76-F88EC9D73D44)
+Notification activated (com.github.Electron:notification:EAF7B87C-A113-43D7-8E76-F88EC9D73D44)
+Notification replied to (com.github.Electron:notification:EAF7B87C-A113-43D7-8E76-F88EC9D73D44)
+```

 ### `ELECTRON_LOG_ASAR_READS`

--- a/docs/api/extensions.md
+++ b/docs/api/extensions.md
@@ -15,7 +15,7 @@ extension capabilities.

 Electron only supports loading unpacked extensions (i.e., `.crx` files do not
 work). Extensions are installed per-`session`. To load an extension, call
-[`ses.loadExtension`](session.md#sesloadextensionpath):
+[`ses.loadExtension`](session.md#sesloadextensionpath-options):

 ```js
 const { session } = require('electron')
@@ -78,6 +78,7 @@ The following methods of `chrome.runtime` are supported:
 - `chrome.runtime.getURL`
 - `chrome.runtime.connect`
 - `chrome.runtime.sendMessage`
+- `chrome.runtime.reload`

 The following events of `chrome.runtime` are supported:

@@ -99,6 +100,8 @@ The following methods of `chrome.tabs` are supported:

 - `chrome.tabs.sendMessage`
 - `chrome.tabs.executeScript`
+- `chrome.tabs.update` (partial support)
+  - supported properties: `url`, `muted`.

 > **Note:** In Chrome, passing `-1` as a tab ID signifies the "currently active
 > tab". Since Electron has no such concept, passing `-1` as a tab ID is not
@@ -115,3 +118,9 @@ The following methods of `chrome.management` are supported:
 - `chrome.management.getPermissionWarningsByManifest`
 - `chrome.management.onEnabled`
 - `chrome.management.onDisabled`
+
+### `chrome.webRequest`
+
+All features of this API are supported.
+
+> **NOTE:** Electron's [`webRequest`](web-request.md) module takes precedence over `chrome.webRequest` if there are conflicting handlers.
--- a/docs/api/frameless-window.md
+++ b/docs/api/frameless-window.md
@@ -18,17 +18,17 @@ const win = new BrowserWindow({ width: 800, height: 600, frame: false })
 win.show()
 ```

-### Alternatives on macOS
+### Alternatives

-There's an alternative way to specify a chromeless window.
+There's an alternative way to specify a chromeless window on macOS and Windows.
 Instead of setting `frame` to `false` which disables both the titlebar and window controls,
 you may want to have the title bar hidden and your content extend to the full window size,
-yet still preserve the window controls ("traffic lights") for standard window actions.
+yet still preserve the window controls ("traffic lights" on macOS) for standard window actions.
 You can do so by specifying the `titleBarStyle` option:

 #### `hidden`

-Results in a hidden title bar and a full size content window, yet the title bar still has the standard window controls (“traffic lights”) in the top left.
+Results in a hidden title bar and a full size content window. On macOS, the title bar still has the standard window controls (“traffic lights”) in the top left.

 ```javascript
 const { BrowserWindow } = require('electron')
@@ -36,6 +36,8 @@ const win = new BrowserWindow({ titleBarStyle: 'hidden' })
 win.show()
 ```

+### Alternatives on macOS
+
 #### `hiddenInset`

 Results in a hidden title bar with an alternative look where the traffic light buttons are slightly more inset from the window edge.
@@ -61,6 +63,35 @@ const win = new BrowserWindow({ titleBarStyle: 'customButtonsOnHover', frame: fa
 win.show()
 ```

+## Windows Control Overlay
+
+When using a frameless window in conjuction with `win.setWindowButtonVisibility(true)` on macOS, using one of the `titleBarStyle`s as described above so
+that the traffic lights are visible, or using `titleBarStyle: hidden` on Windows, you can access the Window Controls Overlay [JavaScript APIs][overlay-javascript-apis] and
+[CSS Environment Variables][overlay-css-env-vars] by setting the `titleBarOverlay` option to true. Specifying `true` will result in an overlay with default system colors.
+
+On Windows, you can also specify the color of the overlay and its symbols by setting `titleBarOverlay` to an object with the options `color` and `symbolColor`. If an option is not specified, the color will default to its system color for the window control buttons:
+
+```javascript
+const { BrowserWindow } = require('electron')
+const win = new BrowserWindow({
+  titleBarStyle: 'hidden',
+  titleBarOverlay: true
+})
+win.show()
+```
+
+```javascript
+const { BrowserWindow } = require('electron')
+const win = new BrowserWindow({
+  titleBarStyle: 'hidden',
+  titleBarOverlay: {
+    color: '#2f3241',
+    symbolColor: '#74b1be'
+  }
+})
+win.show()
+```
+
 ## Transparent window

 By setting the `transparent` option to `true`, you can also make the frameless
@@ -82,8 +113,11 @@ win.show()
 * The `blur` filter only applies to the web page, so there is no way to apply
  blur effect to the content below the window (i.e. other applications open on
  the user's system).
-* On Windows operating systems, transparent windows will not work when DWM is
+* The window will not be transparent when DevTools is opened.
+* On Windows operating systems,
+  * transparent windows will not work when DWM is
  disabled.
+  * transparent windows can not be maximized using the Windows system menu or by double clicking the title bar. The reasoning behind this can be seen on [this pull request](https://github.com/electron/electron/pull/28207).
 * On Linux, users have to put `--enable-transparent-visuals --disable-gpu` in
  the command line to disable GPU and allow ARGB to make transparent window,
  this is caused by an upstream bug that [alpha channel doesn't work on some
@@ -183,3 +217,5 @@ behave correctly on all platforms you should never use a custom context menu on
 draggable areas.

 [ignore-mouse-events]: browser-window.md#winsetignoremouseeventsignore-options
+[overlay-javascript-apis]: https://github.com/WICG/window-controls-overlay/blob/main/explainer.md#javascript-apis
+[overlay-css-env-vars]: https://github.com/WICG/window-controls-overlay/blob/main/explainer.md#css-environment-variables
--- a/docs/api/global-shortcut.md
+++ b/docs/api/global-shortcut.md
@@ -9,7 +9,7 @@ with the operating system so that you can customize the operations for various
 shortcuts.

 **Note:** The shortcut is global; it will work even if the app does
-not have the keyboard focus. You should not use this module until the `ready`
+not have the keyboard focus. This module cannot be used before the `ready`
 event of the app module is emitted.

 ```javascript
--- a/docs/api/incoming-message.md
+++ b/docs/api/incoming-message.md
@@ -2,7 +2,8 @@

 > Handle responses to HTTP/HTTPS requests.

-Process: [Main](../glossary.md#main-process)
+Process: [Main](../glossary.md#main-process)<br />
+_This class is not exported from the `'electron'` module. It is only available as a return value of other methods in the Electron API._

 `IncomingMessage` implements the [Readable Stream](https://nodejs.org/api/stream.html#stream_readable_streams)
 interface and is therefore an [EventEmitter][event-emitter].
--- a/docs/api/ipc-main.md
+++ b/docs/api/ipc-main.md
@@ -40,6 +40,8 @@ ipcMain.on('synchronous-message', (event, arg) => {

 ```javascript
 // In renderer process (web page).
+// NB. Electron APIs are only accessible from preload, unless contextIsolation is disabled.
+// See https://www.electronjs.org/docs/tutorial/process-model#preload-scripts for more details.
 const { ipcRenderer } = require('electron')
 console.log(ipcRenderer.sendSync('synchronous-message', 'ping')) // prints "pong"

@@ -120,6 +122,11 @@ The `event` that is passed as the first argument to the handler is the same as
 that passed to a regular event listener. It includes information about which
 WebContents is the source of the invoke request.

+Errors thrown through `handle` in the main process are not transparent as they
+are serialized and only the `message` property from the original error is
+provided to the renderer process. Please refer to
+[#24427](https://github.com/electron/electron/issues/24427) for details.
+
 ### `ipcMain.handleOnce(channel, listener)`

 * `channel` String
--- a/docs/api/ipc-renderer.md
+++ b/docs/api/ipc-renderer.md
@@ -62,10 +62,9 @@ included. Sending Functions, Promises, Symbols, WeakMaps, or WeakSets will
 throw an exception.

 > **NOTE:** Sending non-standard JavaScript types such as DOM objects or
-> special Electron objects is deprecated, and will begin throwing an exception
-> starting with Electron 9.
-
-> **NOTE:** Since the main process does not have support for DOM objects such as
+> special Electron objects will throw an exception.
+>
+> Since the main process does not have support for DOM objects such as
 > `ImageBitmap`, `File`, `DOMMatrix` and so on, such objects cannot be sent over
 > Electron's IPC to the main process, as the main process would have no way to decode
 > them. Attempting to send such objects over IPC will result in an error.
@@ -90,11 +89,10 @@ Algorithm][SCA], just like [`window.postMessage`][], so prototype chains will no
 included. Sending Functions, Promises, Symbols, WeakMaps, or WeakSets will
 throw an exception.

-> **NOTE**: Sending non-standard JavaScript types such as DOM objects or
-> special Electron objects is deprecated, and will begin throwing an exception
-> starting with Electron 9.
-
-> **NOTE:** Since the main process does not have support for DOM objects such as
+> **NOTE:** Sending non-standard JavaScript types such as DOM objects or
+> special Electron objects will throw an exception.
+>
+> Since the main process does not have support for DOM objects such as
 > `ImageBitmap`, `File`, `DOMMatrix` and so on, such objects cannot be sent over
 > Electron's IPC to the main process, as the main process would have no way to decode
 > them. Attempting to send such objects over IPC will result in an error.
@@ -134,11 +132,10 @@ Algorithm][SCA], just like [`window.postMessage`][], so prototype chains will no
 included. Sending Functions, Promises, Symbols, WeakMaps, or WeakSets will
 throw an exception.

-> **NOTE**: Sending non-standard JavaScript types such as DOM objects or
-> special Electron objects is deprecated, and will begin throwing an exception
-> starting with Electron 9.
-
-> **NOTE:** Since the main process does not have support for DOM objects such as
+> **NOTE:** Sending non-standard JavaScript types such as DOM objects or
+> special Electron objects will throw an exception.
+>
+> Since the main process does not have support for DOM objects such as
 > `ImageBitmap`, `File`, `DOMMatrix` and so on, such objects cannot be sent over
 > Electron's IPC to the main process, as the main process would have no way to decode
 > them. Attempting to send such objects over IPC will result in an error.
--- a/docs/api/locales.md
+++ b/docs/api/locales.md
@@ -1,142 +0,0 @@
-# Locales
-
-> Locale values returned by `app.getLocale()`.
-
-Electron uses Chromium's `l10n_util` library to fetch the locale. Possible
-values are listed below:
-
-| Language Code | Language Name |
-|---------------|---------------|
-| af | Afrikaans |
-| am | Amharic |
-| ar | Arabic |
-| az | Azerbaijani |
-| be | Belarusian |
-| bg | Bulgarian |
-| bh | Bihari |
-| bn | Bengali |
-| br | Breton |
-| bs | Bosnian |
-| ca | Catalan |
-| co | Corsican |
-| cs | Czech |
-| cy | Welsh |
-| da | Danish |
-| de | German |
-| de-AT | German (Austria) |
-| de-CH | German (Switzerland) |
-| de-DE | German (Germany) |
-| el | Greek |
-| en | English |
-| en-AU | English (Australia) |
-| en-CA | English (Canada) |
-| en-GB | English (UK) |
-| en-NZ | English (New Zealand) |
-| en-US | English (US) |
-| en-ZA | English (South Africa) |
-| eo | Esperanto |
-| es | Spanish |
-| es-419 | Spanish (Latin America) |
-| et | Estonian |
-| eu | Basque |
-| fa | Persian |
-| fi | Finnish |
-| fil | Filipino |
-| fo | Faroese |
-| fr | French |
-| fr-CA | French (Canada) |
-| fr-CH | French (Switzerland) |
-| fr-FR | French (France) |
-| fy | Frisian |
-| ga | Irish |
-| gd | Scots Gaelic |
-| gl | Galician |
-| gn | Guarani |
-| gu | Gujarati |
-| ha | Hausa |
-| haw | Hawaiian |
-| he | Hebrew |
-| hi | Hindi |
-| hr | Croatian |
-| hu | Hungarian |
-| hy | Armenian |
-| ia | Interlingua |
-| id | Indonesian |
-| is | Icelandic |
-| it | Italian |
-| it-CH | Italian (Switzerland) |
-| it-IT | Italian (Italy) |
-| ja | Japanese |
-| jw | Javanese |
-| ka | Georgian |
-| kk | Kazakh |
-| km | Cambodian |
-| kn | Kannada |
-| ko | Korean |
-| ku | Kurdish |
-| ky | Kyrgyz |
-| la | Latin |
-| ln | Lingala |
-| lo | Laothian |
-| lt | Lithuanian |
-| lv | Latvian |
-| mk | Macedonian |
-| ml | Malayalam |
-| mn | Mongolian |
-| mo | Moldavian |
-| mr | Marathi |
-| ms | Malay |
-| mt | Maltese |
-| nb | Norwegian (Bokmal) |
-| ne | Nepali |
-| nl | Dutch |
-| nn | Norwegian (Nynorsk) |
-| no | Norwegian |
-| oc | Occitan |
-| om | Oromo |
-| or | Oriya |
-| pa | Punjabi |
-| pl | Polish |
-| ps | Pashto |
-| pt | Portuguese |
-| pt-BR | Portuguese (Brazil) |
-| pt-PT | Portuguese (Portugal) |
-| qu | Quechua |
-| rm | Romansh |
-| ro | Romanian |
-| ru | Russian |
-| sd | Sindhi |
-| sh | Serbo-Croatian |
-| si | Sinhalese |
-| sk | Slovak |
-| sl | Slovenian |
-| sn | Shona |
-| so | Somali |
-| sq | Albanian |
-| sr | Serbian |
-| st | Sesotho |
-| su | Sundanese |
-| sv | Swedish |
-| sw | Swahili |
-| ta | Tamil |
-| te | Telugu |
-| tg | Tajik |
-| th | Thai |
-| ti | Tigrinya |
-| tk | Turkmen |
-| to | Tonga |
-| tr | Turkish |
-| tt | Tatar |
-| tw | Twi |
-| ug | Uighur |
-| uk | Ukrainian |
-| ur | Urdu |
-| uz | Uzbek |
-| vi | Vietnamese |
-| xh | Xhosa |
-| yi | Yiddish |
-| yo | Yoruba |
-| zh | Chinese |
-| zh-CN | Chinese (Simplified) |
-| zh-TW | Chinese (Traditional) |
-| zu | Zulu |
--- a/docs/api/menu-item.md
+++ b/docs/api/menu-item.md
@@ -14,7 +14,7 @@ See [`Menu`](menu.md) for examples.
    * `menuItem` MenuItem
    * `browserWindow` [BrowserWindow](browser-window.md) | undefined - This will not be defined if no window is open.
    * `event` [KeyboardEvent](structures/keyboard-event.md)
-  * `role` String (optional) - Can be `undo`, `redo`, `cut`, `copy`, `paste`, `pasteAndMatchStyle`, `delete`, `selectAll`, `reload`, `forceReload`, `toggleDevTools`, `resetZoom`, `zoomIn`, `zoomOut`, `togglefullscreen`, `window`, `minimize`, `close`, `help`, `about`, `services`, `hide`, `hideOthers`, `unhide`, `quit`, `startSpeaking`, `stopSpeaking`, `zoom`, `front`, `appMenu`, `fileMenu`, `editMenu`, `viewMenu`, `shareMenu`, `recentDocuments`, `toggleTabBar`, `selectNextTab`, `selectPreviousTab`, `mergeAllWindows`, `clearRecentDocuments`, `moveTabToNewWindow` or `windowMenu` - Define the action of the menu item, when specified the
+  * `role` String (optional) - Can be `undo`, `redo`, `cut`, `copy`, `paste`, `pasteAndMatchStyle`, `delete`, `selectAll`, `reload`, `forceReload`, `toggleDevTools`, `resetZoom`, `zoomIn`, `zoomOut`, `toggleSpellChecker`, `togglefullscreen`, `window`, `minimize`, `close`, `help`, `about`, `services`, `hide`, `hideOthers`, `unhide`, `quit`, `startSpeaking`, `stopSpeaking`, `zoom`, `front`, `appMenu`, `fileMenu`, `editMenu`, `viewMenu`, `shareMenu`, `recentDocuments`, `toggleTabBar`, `selectNextTab`, `selectPreviousTab`, `mergeAllWindows`, `clearRecentDocuments`, `moveTabToNewWindow` or `windowMenu` - Define the action of the menu item, when specified the
    `click` property will be ignored. See [roles](#roles).
  * `type` String (optional) - Can be `normal`, `separator`, `submenu`, `checkbox` or
    `radio`.
@@ -155,11 +155,17 @@ A `String` indicating the type of the item. Can be `normal`, `separator`, `subme

 #### `menuItem.role`

-A `String` (optional) indicating the item's role, if set. Can be `undo`, `redo`, `cut`, `copy`, `paste`, `pasteAndMatchStyle`, `delete`, `selectAll`, `reload`, `forceReload`, `toggleDevTools`, `resetZoom`, `zoomIn`, `zoomOut`, `togglefullscreen`, `window`, `minimize`, `close`, `help`, `about`, `services`, `hide`, `hideOthers`, `unhide`, `quit`, `startSpeaking`, `stopSpeaking`, `zoom`, `front`, `appMenu`, `fileMenu`, `editMenu`, `viewMenu`, `recentDocuments`, `toggleTabBar`, `selectNextTab`, `selectPreviousTab`, `mergeAllWindows`, `clearRecentDocuments`, `moveTabToNewWindow` or `windowMenu`
+A `String` (optional) indicating the item's role, if set. Can be `undo`, `redo`, `cut`, `copy`, `paste`, `pasteAndMatchStyle`, `delete`, `selectAll`, `reload`, `forceReload`, `toggleDevTools`, `resetZoom`, `zoomIn`, `zoomOut`, `toggleSpellChecker`, `togglefullscreen`, `window`, `minimize`, `close`, `help`, `about`, `services`, `hide`, `hideOthers`, `unhide`, `quit`, `startSpeaking`, `stopSpeaking`, `zoom`, `front`, `appMenu`, `fileMenu`, `editMenu`, `viewMenu`, `shareMenu`, `recentDocuments`, `toggleTabBar`, `selectNextTab`, `selectPreviousTab`, `mergeAllWindows`, `clearRecentDocuments`, `moveTabToNewWindow` or `windowMenu`

 #### `menuItem.accelerator`

-A `Accelerator` (optional) indicating the item's accelerator, if set.
+An `Accelerator` (optional) indicating the item's accelerator, if set.
+
+#### `menuItem.userAccelerator` _Readonly_ _macOS_
+
+An `Accelerator | null` indicating the item's [user-assigned accelerator](https://developer.apple.com/documentation/appkit/nsmenuitem/1514850-userkeyequivalent?language=objc) for the menu item.
+
+**Note:** This property is only initialized after the `MenuItem` has been added to a `Menu`. Either via `Menu.buildFromTemplate` or via `Menu.append()/insert()`.  Accessing before initialization will just return `null`.

 #### `menuItem.icon`

--- a/docs/api/menu.md
+++ b/docs/api/menu.md
@@ -1,3 +1,5 @@
+# Menu
+
 ## Class: Menu

 > Create native application menus and context menus.
@@ -22,8 +24,10 @@ Sets `menu` as the application menu on macOS. On Windows and Linux, the
 Also on Windows and Linux, you can use a `&` in the top-level item name to
 indicate which letter should get a generated accelerator. For example, using
 `&File` for the file menu would result in a generated `Alt-F` accelerator that
-opens the associated menu. The indicated character in the button label gets an
-underline. The `&` character is not displayed on the button label.
+opens the associated menu. The indicated character in the button label then gets an
+underline, and the `&` character is not displayed on the button label.
+
+In order to escape the `&` character in an item name, add a proceeding `&`. For example, `&&File` would result in `&File` displayed on the button label.

 Passing `null` will suppress the default menu. On Windows and Linux,
 this has the additional effect of removing the menu bar from the window.
@@ -158,7 +162,7 @@ const template = [
      { role: 'services' },
      { type: 'separator' },
      { role: 'hide' },
-      { role: 'hideothers' },
+      { role: 'hideOthers' },
      { role: 'unhide' },
      { type: 'separator' },
      { role: 'quit' }
@@ -401,4 +405,4 @@ Menu:
 ```

 [AboutInformationPropertyListFiles]: https://developer.apple.com/library/ios/documentation/general/Reference/InfoPlistKeyReference/Articles/AboutInformationPropertyListFiles.html
-[setMenu]: https://github.com/electron/electron/blob/master/docs/api/browser-window.md#winsetmenumenu-linux-windows
+[setMenu]: browser-window.md#winsetmenumenu-linux-windows
--- a/docs/api/message-channel-main.md
+++ b/docs/api/message-channel-main.md
@@ -9,12 +9,15 @@ channel messaging.

 ## Class: MessageChannelMain

+> Channel interface for channel messaging in the main process.
+
 Process: [Main](../glossary.md#main-process)

 Example:

 ```js
 // Main process
+const { MessageChannelMain } = require('electron')
 const { port1, port2 } = new MessageChannelMain()
 w.webContents.postMessage('port', null, [port2])
 port1.postMessage({ some: 'message' })
--- a/docs/api/message-port-main.md
+++ b/docs/api/message-port-main.md
@@ -14,7 +14,10 @@ channel messaging.

 ## Class: MessagePortMain

-Process: [Main](../glossary.md#main-process)
+> Port interface for channel messaging in the main process.
+
+Process: [Main](../glossary.md#main-process)<br />
+_This class is not exported from the `'electron'` module. It is only available as a return value of other methods in the Electron API._

 ### Instance Methods

--- a/docs/api/modernization/overview.md
+++ b/docs/api/modernization/overview.md
@@ -1,10 +0,0 @@
-## Modernization
-
-The Electron team is currently undergoing an initiative to modernize our API in a few concrete ways. These include: updating our modules to use idiomatic JS properties instead of separate `getPropertyX` and `setPropertyX`, converting callbacks to promises, and removing some other anti-patterns present in our APIs. The current status of the Promise initiative can be tracked in the [promisification](promisification.md) tracking file.
-
-As we work to perform these updates, we seek to create the least disruptive amount of change at any given time, so as many changes as possible will be introduced in a backward compatible manner and deprecated after enough time has passed to give users a chance to upgrade their API calls.
-
-This document and its child documents will be updated to reflect the latest status of our API changes.
-
-* [Promisification](promisification.md)
-* [Property Updates](property-updates.md)
--- a/docs/api/modernization/promisification.md
+++ b/docs/api/modernization/promisification.md
@@ -1,42 +0,0 @@
-## Promisification
-
-The Electron team recently underwent an initiative to convert callback-based APIs to Promise-based ones. See converted functions below:
-
- [app.getFileIcon(path[, options], callback)](https://github.com/electron/electron/blob/master/docs/api/app.md#getFileIcon)
- [contents.capturePage([rect, ]callback)](https://github.com/electron/electron/blob/master/docs/api/web-contents.md#capturePage)
- [contents.executeJavaScript(code[, userGesture, callback])](https://github.com/electron/electron/blob/master/docs/api/web-contents.md#executeJavaScript)
- [contents.printToPDF(options, callback)](https://github.com/electron/electron/blob/master/docs/api/web-contents.md#printToPDF)
- [contents.savePage(fullPath, saveType, callback)](https://github.com/electron/electron/blob/master/docs/api/web-contents.md#savePage)
- [contentTracing.getCategories(callback)](https://github.com/electron/electron/blob/master/docs/api/content-tracing.md#getCategories)
- [contentTracing.startRecording(options, callback)](https://github.com/electron/electron/blob/master/docs/api/content-tracing.md#startRecording)
- [contentTracing.stopRecording(resultFilePath, callback)](https://github.com/electron/electron/blob/master/docs/api/content-tracing.md#stopRecording)
- [contentTracing.getTraceBufferUsage(callback)](https://github.com/electron/electron/blob/master/docs/api/content-tracing.md#getTraceBufferUsage)
- [cookies.flushStore(callback)](https://github.com/electron/electron/blob/master/docs/api/cookies.md#flushStore)
- [cookies.get(filter, callback)](https://github.com/electron/electron/blob/master/docs/api/cookies.md#get)
- [cookies.remove(url, name, callback)](https://github.com/electron/electron/blob/master/docs/api/cookies.md#remove)
- [cookies.set(details, callback)](https://github.com/electron/electron/blob/master/docs/api/cookies.md#set)
- [debugger.sendCommand(method[, commandParams, callback])](https://github.com/electron/electron/blob/master/docs/api/debugger.md#sendCommand)
- [desktopCapturer.getSources(options, callback)](https://github.com/electron/electron/blob/master/docs/api/desktop-capturer.md#getSources)
- [dialog.showOpenDialog([browserWindow, ]options[, callback])](https://github.com/electron/electron/blob/master/docs/api/dialog.md#showOpenDialog)
- [dialog.showSaveDialog([browserWindow, ]options[, callback])](https://github.com/electron/electron/blob/master/docs/api/dialog.md#showSaveDialog)
- [inAppPurchase.purchaseProduct(productID, quantity, callback)](https://github.com/electron/electron/blob/master/docs/api/in-app-purchase.md#purchaseProduct)
- [inAppPurchase.getProducts(productIDs, callback)](https://github.com/electron/electron/blob/master/docs/api/in-app-purchase.md#getProducts)
- [dialog.showMessageBox([browserWindow, ]options[, callback])](https://github.com/electron/electron/blob/master/docs/api/dialog.md#showMessageBox)
- [dialog.showCertificateTrustDialog([browserWindow, ]options, callback)](https://github.com/electron/electron/blob/master/docs/api/dialog.md#showCertificateTrustDialog)
- [netLog.stopLogging([callback])](https://github.com/electron/electron/blob/master/docs/api/net-log.md#stopLogging)
- [protocol.isProtocolHandled(scheme, callback)](https://github.com/electron/electron/blob/master/docs/api/protocol.md#isProtocolHandled)
- [ses.clearHostResolverCache([callback])](https://github.com/electron/electron/blob/master/docs/api/session.md#clearHostResolverCache)
- [ses.clearStorageData([options, callback])](https://github.com/electron/electron/blob/master/docs/api/session.md#clearStorageData)
- [ses.setProxy(config, callback)](https://github.com/electron/electron/blob/master/docs/api/session.md#setProxy)
- [ses.resolveProxy(url, callback)](https://github.com/electron/electron/blob/master/docs/api/session.md#resolveProxy)
- [ses.getCacheSize(callback)](https://github.com/electron/electron/blob/master/docs/api/session.md#getCacheSize)
- [ses.clearAuthCache(options[, callback])](https://github.com/electron/electron/blob/master/docs/api/session.md#clearAuthCache)
- [ses.clearCache(callback)](https://github.com/electron/electron/blob/master/docs/api/session.md#clearCache)
- [ses.getBlobData(identifier, callback)](https://github.com/electron/electron/blob/master/docs/api/session.md#getBlobData)
- [shell.openExternal(url[, options, callback])](https://github.com/electron/electron/blob/master/docs/api/shell.md#openExternal)
- [webFrame.executeJavaScript(code[, userGesture, callback])](https://github.com/electron/electron/blob/master/docs/api/web-frame.md#executeJavaScript)
- [webFrame.executeJavaScriptInIsolatedWorld(worldId, scripts[, userGesture, callback])](https://github.com/electron/electron/blob/master/docs/api/web-frame.md#executeJavaScriptInIsolatedWorld)
- [webviewTag.capturePage([rect, ]callback)](https://github.com/electron/electron/blob/master/docs/api/webview-tag.md#capturePage)
- [webviewTag.executeJavaScript(code[, userGesture, callback])](https://github.com/electron/electron/blob/master/docs/api/webview-tag.md#executeJavaScript)
- [webviewTag.printToPDF(options, callback)](https://github.com/electron/electron/blob/master/docs/api/webview-tag.md#printToPDF)
- [win.capturePage([rect, ]callback)](https://github.com/electron/electron/blob/master/docs/api/browser-window.md#capturePage)
--- a/docs/api/modernization/property-updates.md
+++ b/docs/api/modernization/property-updates.md
@@ -1,41 +0,0 @@
-## Property Updates
-
-The Electron team is currently undergoing an initiative to convert separate getter and setter functions in Electron to bespoke properties with `get` and `set` functionality. During this transition period, both the new properties and old getters and setters of these functions will work correctly and be documented.
-
-## Candidates
-
-* `BrowserWindow`
-  * `menubarVisible`
-* `crashReporter` module
-  * `uploadToServer`
-* `webFrame` modules
-  * `zoomFactor`
-  * `zoomLevel`
-  * `audioMuted`
-* `<webview>`
-  * `zoomFactor`
-  * `zoomLevel`
-  * `audioMuted`
-
-## Converted Properties
-
-* `app` module
-  * `accessibilitySupport`
-  * `applicationMenu`
-  * `badgeCount`
-  * `name`
-* `DownloadItem` class
-  * `savePath`
-* `BrowserWindow` module
-  * `autoHideMenuBar`
-  * `resizable`
-  * `maximizable`
-  * `minimizable`
-  * `fullscreenable`
-  * `movable`
-  * `closable`
-  * `backgroundThrottling`
-* `NativeImage`
-  * `isMacTemplateImage`
-* `SystemPreferences` module
-  * `appLevelAppearance`
--- a/docs/api/native-image.md
+++ b/docs/api/native-image.md
@@ -215,7 +215,8 @@ where `SYSTEM_IMAGE_NAME` should be replaced with any value from [this list](htt

 > Natively wrap images such as tray, dock, and application icons.

-Process: [Main](../glossary.md#main-process), [Renderer](../glossary.md#renderer-process)
+Process: [Main](../glossary.md#main-process), [Renderer](../glossary.md#renderer-process)<br />
+_This class is not exported from the `'electron'` module. It is only available as a return value of other methods in the Electron API._

 ### Instance Methods

--- a/docs/api/power-monitor.md
+++ b/docs/api/power-monitor.md
@@ -8,11 +8,11 @@ Process: [Main](../glossary.md#main-process)

 The `powerMonitor` module emits the following events:

-### Event: 'suspend' _macOS_ _Windows_
+### Event: 'suspend'

 Emitted when the system is suspending.

-### Event: 'resume' _macOS_ _Windows_
+### Event: 'resume'

 Emitted when system is resuming.

--- a/docs/api/process.md
+++ b/docs/api/process.md
@@ -12,28 +12,31 @@ It adds the following events, properties, and methods:

 In sandboxed renderers the `process` object contains only a subset of the APIs:

- `crash()`
- `hang()`
- `getCreationTime()`
- `getHeapStatistics()`
- `getBlinkMemoryInfo()`
- `getProcessMemoryInfo()`
- `getSystemMemoryInfo()`
- `getSystemVersion()`
- `getCPUUsage()`
- `getIOCounters()`
- `argv`
- `execPath`
- `env`
- `pid`
- `arch`
- `platform`
- `sandboxed`
- `type`
- `version`
- `versions`
- `mas`
- `windowsStore`
+* `crash()`
+* `hang()`
+* `getCreationTime()`
+* `getHeapStatistics()`
+* `getBlinkMemoryInfo()`
+* `getProcessMemoryInfo()`
+* `getSystemMemoryInfo()`
+* `getSystemVersion()`
+* `getCPUUsage()`
+* `getIOCounters()`
+* `uptime()`
+* `argv`
+* `execPath`
+* `env`
+* `pid`
+* `arch`
+* `platform`
+* `sandboxed`
+* `contextIsolated`
+* `type`
+* `version`
+* `versions`
+* `mas`
+* `windowsStore`
+* `contextId`

 ## Events

@@ -42,19 +45,6 @@ In sandboxed renderers the `process` object contains only a subset of the APIs:
 Emitted when Electron has loaded its internal initialization script and is
 beginning to load the web page or the main script.

-It can be used by the preload script to add removed Node global symbols back to
-the global scope when node integration is turned off:
-
-```javascript
-// preload.js
-const _setImmediate = setImmediate
-const _clearImmediate = clearImmediate
-process.once('loaded', () => {
-  global.setImmediate = _setImmediate
-  global.clearImmediate = _clearImmediate
-})
-```
-
 ## Properties

 ### `process.defaultApp` _Readonly_
@@ -92,6 +82,11 @@ A `String` representing the path to the resources directory.
 A `Boolean`. When the renderer process is sandboxed, this property is `true`,
 otherwise it is `undefined`.

+### `process.contextIsolated` _Readonly_
+
+A `Boolean` that indicates whether the current renderer context has `contextIsolation` enabled.
+It is `undefined` in the main process.
+
 ### `process.throwDeprecation`

 A `Boolean` that controls whether or not deprecation warnings will be thrown as
@@ -132,6 +127,13 @@ A `String` representing Electron's version string.
 A `Boolean`. If the app is running as a Windows Store app (appx), this property is `true`,
 for otherwise it is `undefined`.

+### `process.contextId` _Readonly_
+
+A `String` (optional) representing a globally unique ID of the current JavaScript context.
+Each frame has its own JavaScript context. When contextIsolation is enabled, the isolated
+world also has a separate JavaScript context.
+This property is only available in the renderer process.
+
 ## Methods

 The `process` object has the following methods:
--- a/docs/api/remote.md
+++ b/docs/api/remote.md
@@ -1,217 +0,0 @@
-# remote
-
-> Use main process modules from the renderer process.
-
-Process: [Renderer](../glossary.md#renderer-process)
-
-> ⚠️ WARNING ⚠️
-> The `remote` module is [deprecated](https://github.com/electron/electron/issues/21408).
-> Instead of `remote`, use [`ipcRenderer`](ipc-renderer.md) and
-> [`ipcMain`](ipc-main.md).
->
-> Read more about why the `remote` module is deprecated [here](https://medium.com/@nornagon/electrons-remote-module-considered-harmful-70d69500f31).
->
-> If you still want to use `remote` despite the performance and security
-> concerns, see [@electron/remote](https://github.com/electron/remote).
-
-The `remote` module provides a simple way to do inter-process communication
-(IPC) between the renderer process (web page) and the main process.
-
-In Electron, GUI-related modules (such as `dialog`, `menu` etc.) are only
-available in the main process, not in the renderer process. In order to use them
-from the renderer process, the `ipc` module is necessary to send inter-process
-messages to the main process. With the `remote` module, you can invoke methods
-of the main process object without explicitly sending inter-process messages,
-similar to Java's [RMI][rmi]. An example of creating a browser window from a
-renderer process:
-
-```javascript
-const { BrowserWindow } = require('electron').remote
-const win = new BrowserWindow({ width: 800, height: 600 })
-win.loadURL('https://github.com')
-```
-
-**Note:** For the reverse (access the renderer process from the main process),
-you can use [webContents.executeJavaScript](web-contents.md#contentsexecutejavascriptcode-usergesture).
-
-**Note:** The remote module can be disabled for security reasons in the following contexts:
-
- [`BrowserWindow`](browser-window.md) - by setting the `enableRemoteModule` option to `false`.
- [`<webview>`](webview-tag.md) - by setting the `enableremotemodule` attribute to `false`.
-
-## Remote Objects
-
-Each object (including functions) returned by the `remote` module represents an
-object in the main process (we call it a remote object or remote function).
-When you invoke methods of a remote object, call a remote function, or create
-a new object with the remote constructor (function), you are actually sending
-synchronous inter-process messages.
-
-In the example above, both [`BrowserWindow`](browser-window.md) and `win` were remote objects and
-`new BrowserWindow` didn't create a `BrowserWindow` object in the renderer
-process. Instead, it created a `BrowserWindow` object in the main process and
-returned the corresponding remote object in the renderer process, namely the
-`win` object.
-
-**Note:** Only [enumerable properties][enumerable-properties] which are present
-when the remote object is first referenced are accessible via remote.
-
-**Note:** Arrays and Buffers are copied over IPC when accessed via the `remote`
-module. Modifying them in the renderer process does not modify them in the main
-process and vice versa.
-
-## Lifetime of Remote Objects
-
-Electron makes sure that as long as the remote object in the renderer process
-lives (in other words, has not been garbage collected), the corresponding object
-in the main process will not be released. When the remote object has been
-garbage collected, the corresponding object in the main process will be
-dereferenced.
-
-If the remote object is leaked in the renderer process (e.g. stored in a map but
-never freed), the corresponding object in the main process will also be leaked,
-so you should be very careful not to leak remote objects.
-
-Primary value types like strings and numbers, however, are sent by copy.
-
-## Passing callbacks to the main process
-
-Code in the main process can accept callbacks from the renderer - for instance
-the `remote` module - but you should be extremely careful when using this
-feature.
-
-First, in order to avoid deadlocks, the callbacks passed to the main process
-are called asynchronously. You should not expect the main process to
-get the return value of the passed callbacks.
-
-For instance you can't use a function from the renderer process in an
-`Array.map` called in the main process:
-
-```javascript
-// main process mapNumbers.js
-exports.withRendererCallback = (mapper) => {
-  return [1, 2, 3].map(mapper)
-}
-
-exports.withLocalCallback = () => {
-  return [1, 2, 3].map(x => x + 1)
-}
-```
-
-```javascript
-// renderer process
-const mapNumbers = require('electron').remote.require('./mapNumbers')
-const withRendererCb = mapNumbers.withRendererCallback(x => x + 1)
-const withLocalCb = mapNumbers.withLocalCallback()
-
-console.log(withRendererCb, withLocalCb)
-// [undefined, undefined, undefined], [2, 3, 4]
-```
-
-As you can see, the renderer callback's synchronous return value was not as
-expected, and didn't match the return value of an identical callback that lives
-in the main process.
-
-Second, the callbacks passed to the main process will persist until the
-main process garbage-collects them.
-
-For example, the following code seems innocent at first glance. It installs a
-callback for the `close` event on a remote object:
-
-```javascript
-require('electron').remote.getCurrentWindow().on('close', () => {
-  // window was closed...
-})
-```
-
-But remember the callback is referenced by the main process until you
-explicitly uninstall it. If you do not, each time you reload your window the
-callback will be installed again, leaking one callback for each restart.
-
-To make things worse, since the context of previously installed callbacks has
-been released, exceptions will be raised in the main process when the `close`
-event is emitted.
-
-To avoid this problem, ensure you clean up any references to renderer callbacks
-passed to the main process. This involves cleaning up event handlers, or
-ensuring the main process is explicitly told to dereference callbacks that came
-from a renderer process that is exiting.
-
-## Accessing built-in modules in the main process
-
-The built-in modules in the main process are added as getters in the `remote`
-module, so you can use them directly like the `electron` module.
-
-```javascript
-const app = require('electron').remote.app
-console.log(app)
-```
-
-## Methods
-
-The `remote` module has the following methods:
-
-### `remote.getCurrentWindow()`
-
-Returns [`BrowserWindow`](browser-window.md) - The window to which this web page
-belongs.
-
-**Note:** Do not use `removeAllListeners` on [`BrowserWindow`](browser-window.md).
-Use of this can remove all [`blur`](https://developer.mozilla.org/en-US/docs/Web/Events/blur)
-listeners, disable click events on touch bar buttons, and other unintended
-consequences.
-
-### `remote.getCurrentWebContents()`
-
-Returns [`WebContents`](web-contents.md) - The web contents of this web page.
-
-### `remote.getGlobal(name)`
-
-* `name` String
-
-Returns `any` - The global variable of `name` (e.g. `global[name]`) in the main
-process.
-
-## Properties
-
-### `remote.require`
-
-A `NodeJS.Require` function equivalent to `require(module)` in the main process.
-Modules specified by their relative path will resolve relative to the entrypoint
-of the main process.
-
-e.g.
-
-```sh
-project/
-├── main
-│   ├── foo.js
-│   └── index.js
-├── package.json
-└── renderer
-    └── index.js
-```
-
-```js
-// main process: main/index.js
-const { app } = require('electron')
-app.whenReady().then(() => { /* ... */ })
-```
-
-```js
-// some relative module: main/foo.js
-module.exports = 'bar'
-```
-
-```js
-// renderer process: renderer/index.js
-const foo = require('electron').remote.require('./foo') // bar
-```
-
-### `remote.process` _Readonly_
-
-A `NodeJS.Process` object.  The `process` object in the main process. This is the same as
-`remote.getGlobal('process')` but is cached.
-
-[rmi]: https://en.wikipedia.org/wiki/Java_remote_method_invocation
-[enumerable-properties]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Enumerability_and_ownership_of_properties
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