chore: v4.8.2

chore(cli-template-contracts-foundry): add prepublish script to publish foundry template

.eslintrc.json

@@ -26,5 +26,13 @@
         "no-console": ["warn", { "allow": ["info", "warn", "error"] }],
         "@typescript-eslint/lines-between-class-members": "off",
         "no-param-reassign": "off"
-    }
+    },
+    "overrides": [
+        {
+            "files": ["./scripts/*"],
+            "rules": {
+                "no-console": "off"
+            }
+        }
+    ]
 }

.github/workflows/production.yml

@@ -83,7 +83,7 @@ jobs:
                   sudo apt-get update && sudo apt-get install -y wget nlohmann-json3-dev libgmp-dev nasm g++ build-essential
 
             - name: Setup Circom
-              run: wget https://github.com/iden3/circom/releases/latest/download/circom-linux-amd64 && sudo mv ./circom-linux-amd64 /usr/bin/circom && sudo chmod +x /usr/bin/circom
+              run: sudo wget https://github.com/iden3/circom/releases/download/v2.1.9/circom-linux-amd64 -O /usr/bin/circom && sudo chmod +x /usr/bin/circom
 
             - name: Install dependencies
               run: yarn

.github/workflows/pull-requests.yml

@@ -111,7 +111,7 @@ jobs:
               run: |
                   sudo rm /etc/apt/sources.list.d/microsoft-prod.list
                   sudo apt-get update && sudo apt-get install -y wget nlohmann-json3-dev libgmp-dev nasm g++ build-essential
-                  wget https://github.com/iden3/circom/releases/latest/download/circom-linux-amd64 && sudo mv ./circom-linux-amd64 /usr/bin/circom && sudo chmod +x /usr/bin/circom
+                  sudo wget https://github.com/iden3/circom/releases/download/v2.1.9/circom-linux-amd64 -O /usr/bin/circom && sudo chmod +x /usr/bin/circom
                   yarn workspace @semaphore-protocol/group build
                   yarn workspace @semaphore-protocol/identity build
                   yarn workspace @semaphore-protocol/proof build

.github/workflows/release.yml

@@ -4,6 +4,7 @@ permissions:
     contents: write
 
 on:
+    workflow_dispatch:
     push:
         tags:
             - "v*"
@@ -17,6 +18,16 @@ jobs:
               with:
                   fetch-depth: 0
 
+            - name: Install soldeer
+              uses: taiki-e/install-action@v2
+              with:
+                  tool: soldeer
+            - name: Store soldeer login credential
+              env:
+                  SOLDEER_TOKEN: ${{ secrets.SOLDEER_TOKEN }}
+              run: |
+                  echo "$SOLDEER_TOKEN" > "$GITHUB_WORKSPACE"/soldeer_login
+
             - name: Install Node.js
               uses: actions/setup-node@v4
               with:
@@ -37,6 +48,7 @@ jobs:
               run: yarn version:publish
               env:
                   NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+                  SOLDEER_LOGIN_FILE: ${{ github.workspace }}/soldeer_login
 
             - run: yarn version:release
               env:

.gitignore

@@ -94,3 +94,5 @@ typechain-types
 
 # Other
 snark-artifacts
+
+*.zip

.soldeerignore

@@ -0,0 +1 @@
+package.json

CONTRIBUTING.md

@@ -42,7 +42,7 @@ When you submit your PR (or later change that code), a CI build will automatical
 
 We always use ESLint and Prettier. To check that your code follows the rules, simply run the npm script `yarn lint`.
 
-### Commits rules
+### Commit rules
 
 For commits it is recommended to use [Conventional Commits](https://www.conventionalcommits.org).
 

README.md

@@ -53,7 +53,7 @@
             🔎 Issues
         </a>
         <span>&nbsp;&nbsp;|&nbsp;&nbsp;</span>
-        <a href="https://semaphore.pse.dev/discord">
+        <a href="https://semaphore.pse.dev/telegram">
             🗣️ Chat &amp; Support
         </a>
         <span>&nbsp;&nbsp;|&nbsp;&nbsp;</span>
@@ -264,7 +264,7 @@ The core of the Semaphore protocol is in the [circuit logic](/packages/circuits/
                 </a>
             </td>
         </tr>
-    <tbody>
+    </tbody>
 </table>
 
 ## 🛠 Install
@@ -275,12 +275,18 @@ Clone this repository:
 git clone https://github.com/semaphore-protocol/semaphore.git
 ```
 
-And install the dependencies:
+Install the dependencies:
 
 ```bash
 cd semaphore && yarn
 ```
 
+And build the repositiory:
+
+```bash
+yarn build
+```
+
 ## 📜 Usage
 
 Copy the `.env.example` file as `.env`:
@@ -374,5 +380,5 @@ yarn version:bump <version>
 # e.g. yarn version:bump 2.0.0
 ```
 
-It will create a commit and a git tag that will need to pushed on the main branch. A workflow will be triggered and will
+It will create a commit and a git tag that will need to be pushed on the main branch. A workflow will be triggered and will
 publish the Semaphore packages on [npm](https://www.npmjs.com/) and release a new version on Github with its changelogs automatically.

apps/docs/README.md

@@ -34,7 +34,7 @@
             🔎 Issues
         </a>
         <span>&nbsp;&nbsp;|&nbsp;&nbsp;</span>
-        <a href="https://semaphore.pse.dev/discord">
+        <a href="https://semaphore.pse.dev/telegram">
             🗣️ Chat &amp; Support
         </a>
     </h4>

apps/docs/docusaurus.config.ts

@@ -67,7 +67,7 @@ const config: Config = {
         announcementBar: {
             id: "semaphore-v4-beta",
             content:
-                '<b>Semaphore V4-beta is out 🎉 <a href="/getting-started">Try it out</a> and contribute to the <a href="/trusted-setup">Trusted Setup ceremony</a>. Let us know for any feedback on <a href="https://semaphore.pse.dev/discord" target="_blank">Discord</a> or <a href="https://github.com/orgs/semaphore-protocol/discussions" target="_blank">Github</a>!</b>',
+                '<b><a href="https://github.com/semaphore-protocol/semaphore/releases/tag/v4.0.0" target="_blank">Semaphore V4</a> is out 🎉 <a href="/getting-started">Try it out</a> and let us know if you have any feedback on <a href="https://semaphore.pse.dev/telegram" target="_blank">Telegram</a> or <a href="https://github.com/orgs/semaphore-protocol/discussions" target="_blank">Github</a>!</b>',
             backgroundColor: "#dde6fc",
             textColor: "#000000"
         },

apps/docs/i18n/en/code.json

@@ -386,7 +386,7 @@
         "message": "Connect"
     },
     "footer.right.connect.link1": {
-        "message": "Discord"
+        "message": "Telegram"
     },
     "footer.right.connect.link2": {
         "message": "X (Twitter)"

apps/docs/i18n/es/code.json

@@ -42,7 +42,7 @@
         "message": "Valores públicos"
     },
     "section.identities.box2.description": {
-        "message": "Semaphore utiliza la función hash Poseidon para crear el identtity commitment a partir de los valores privados. Los identity commitments se pueden compartir públicamente, de forma similar a las direcciones Ethereum."
+        "message": "Semaphore utiliza la función hash Poseidon para crear el identity commitment a partir de los valores privados. Los identity commitments se pueden compartir públicamente, de forma similar a las direcciones Ethereum."
     },
     "section.identities.box3.title": {
         "message": "Generar identidades"
@@ -386,7 +386,7 @@
         "message": "Conecta con nosotros"
     },
     "footer.right.connect.link1": {
-        "message": "Discord"
+        "message": "Telegram"
     },
     "footer.right.connect.link2": {
         "message": "X (Twitter)"

apps/docs/i18n/es/docusaurus-plugin-content-docs/version-V1/audit.md

@@ -12,6 +12,6 @@ as well as relevant circuits in
 which the Semaphore zk-SNARK uses.
 
 The summary of the audit results can be found
-[here](https://github.com/appliedzkp/semaphore/tree/master/audit). After three
+[here](https://github.com/semaphore-protocol/semaphore/blob/main/apps/docs/versioned_docs/version-V1/audit.md). After three
 rounds of fixes, all security and performance issues were fixed, and the few
 remaining issues are minor and do not affect security.

apps/docs/i18n/es/docusaurus-plugin-content-docs/version-V2/quick-setup.md

@@ -58,7 +58,7 @@ Hardhat includes the Hardhat Network, a local Ethereum network for development.
 
 ## Install Semaphore packages
 
-Semaphore provides contracts, JavaScript libraries and an Hardhat plugin for developers building zero-knowledge applications.
+Semaphore provides contracts, JavaScript libraries and a Hardhat plugin for developers building zero-knowledge applications.
 
 -   `@semaphore-protocol/contracts` provides contracts to manage groups and verify Semaphore proofs on-chain.
 -   JavaScript libraries help developers build zero-knowledge applications.

apps/docs/i18n/es/docusaurus-plugin-content-docs/version-V3/faq.md

@@ -14,7 +14,7 @@ También proporciona un mecanismo simple para evitar la doble señalización, lo
 
 ## ¿Dónde puedo hacer preguntas sobre Semaphore?
 
-Puede hacer preguntas sobre Semaphore en [Discord](https://semaphore.pse.dev/discord) o abriendo un [Semaphore Discussion](https://github.com/semaphore-protocol/semaphore/discussions).
+Puede hacer preguntas sobre Semaphore en [Telegram](https://semaphore.pse.dev/telegram) o abriendo un [Semaphore Discussion](https://github.com/semaphore-protocol/semaphore/discussions).
 
 ## ¿Por qué las identidades requieren tanto `identity trapdoor` como `identity nullifier`?
 

apps/docs/i18n/es/docusaurus-plugin-content-docs/version-V3/troubleshooting.mdx

@@ -7,7 +7,7 @@ import TabItem from "@theme/TabItem"
 
 # Solución de problemas
 
-Si estas sugerencias no funcionan, no dude en preguntar en las [Semaphore Discussions](https://github.com/semaphore-protocol/semaphore/discussions) o en el canal `dev-chat` en el [Semaphore Discord](https://semaphore.pse.dev/discord).
+Si estas sugerencias no funcionan, no dude en preguntar en las [Semaphore Discussions](https://github.com/semaphore-protocol/semaphore/discussions) o en el canal [Semaphore Telegram](https://semaphore.pse.dev/telegram).
 
 ## Usando Semaphore en the frontend
 

apps/docs/package.json

@@ -16,10 +16,10 @@
         "format:write": "remark ./**/*.mdx --output"
     },
     "dependencies": {
-        "@docusaurus/core": "3.1.1",
-        "@docusaurus/preset-classic": "3.1.1",
+        "@docusaurus/core": "3.5.2",
+        "@docusaurus/preset-classic": "3.5.2",
         "@mdx-js/react": "^3.0.0",
-        "@semaphore-protocol/utils": "4.0.0",
+        "@semaphore-protocol/utils": "4.8.2",
         "@svgr/webpack": "^5.5.0",
         "clsx": "^1.2.1",
         "docusaurus-plugin-sass": "^0.2.5",
@@ -31,8 +31,8 @@
         "url-loader": "^4.1.1"
     },
     "devDependencies": {
-        "@docusaurus/module-type-aliases": "3.1.1",
-        "@docusaurus/tsconfig": "3.1.1",
+        "@docusaurus/module-type-aliases": "3.5.2",
+        "@docusaurus/tsconfig": "3.5.2",
         "@types/react": "^18.2.29",
         "remark-cli": "^12.0.0",
         "remark-frontmatter": "^5.0.0",

apps/docs/src/theme/Footer/index.tsx

@@ -32,7 +32,7 @@ function Footer() {
                                     id: "footer.right.connect.title"
                                 })}
                             </h3>
-                            <Link href="https://semaphore.pse.dev/discord" target="_blank">
+                            <Link href="https://semaphore.pse.dev/telegram" target="_blank">
                                 {translate({
                                     id: "footer.right.connect.link1"
                                 })}

apps/docs/versioned_docs/version-V1/audit.md

@@ -12,6 +12,6 @@ as well as relevant circuits in
 which the Semaphore zk-SNARK uses.
 
 The summary of the audit results can be found
-[here](https://github.com/appliedzkp/semaphore/tree/master/audit). After three
+[here](https://github.com/semaphore-protocol/semaphore/blob/main/apps/docs/versioned_docs/version-V1/audit.md). After three
 rounds of fixes, all security and performance issues were fixed, and the few
 remaining issues are minor and do not affect security.

apps/docs/versioned_docs/version-V1/contract-api.md

@@ -21,7 +21,7 @@ The first external nullifier will be added as an external nullifier to the
 contract, and this external nullifier will be active once the deployment
 completes.
 
-## Add, deactivate, or reactivate external nullifiiers
+## Add, deactivate, or reactivate external nullifiers
 
 **Contract ABI**:
 

apps/docs/versioned_docs/version-V1/howitworks.md

@@ -10,8 +10,8 @@ An identity is comprised of the following information:
 
 1. An [EdDSA](https://en.wikipedia.org/wiki/EdDSA) private key. Note that it is
    _not_ an Ethereum private key.
-2. An identity nullifier, whih is a random 32-byte value.
-3. An identity trapdoor, whih is a random 32-byte value.
+2. An identity nullifier, which is a random 32-byte value.
+3. An identity trapdoor, which is a random 32-byte value.
 
 An identity commitment is the Pedersen hash of:
 
@@ -121,7 +121,7 @@ authenticity of the signal and prevents front-running attacks.
 
 ## Cryptographic primitives
 
-Semaphore uses MiMC for the Merkle tree, Pedersen commmitments for the identity
+Semaphore uses MiMC for the Merkle tree, Pedersen commitments for the identity
 commitments, Blake2 for the nullifiers hash, and EdDSA for the signature.
 
 MiMC is a relatively new hash function. We use the recommended MiMC

apps/docs/versioned_docs/version-V1/libsemaphore.md

@@ -145,7 +145,7 @@ Returns `false` otherwise.
 
 **`signMsg(privKey: EddsaPrivateKey, msg: SnarkBigInt): EdDSAMiMcSpongeSignature)`**
 
-Encapsualtes `circomlib.eddsa.signMiMCSponge` to sign a message `msg` using private key `privKey`.
+Encapsulates `circomlib.eddsa.signMiMCSponge` to sign a message `msg` using private key `privKey`.
 
 **`verifySignature(msg: SnarkBigInt, signature: EdDSAMiMcSpongeSignature, pubKey: EddsaPublicKey)`: boolean**
 
@@ -190,7 +190,7 @@ const genWitness = async (
 -   `circuit` is the output of `genCircuit()`.
 -   `identity` is the `Identity` whose identity commitment you want to prove is
     in the set of registered identities.
--   `idCommitments` is an array of registered identity commmitments; i.e. the
+-   `idCommitments` is an array of registered identity commitments; i.e. the
     leaves of the tree.
 -   `treeDepth` is the number of levels which the Merkle tree used has
 -   `externalNullifier` is the current external nullifier
@@ -204,7 +204,7 @@ It returns an object as such:
 -   `msg`: The hash of the external nullifier and the signal hash
 -   `signature`: The signature on the above msg.
 -   `tree`: The Merkle tree object after it has been updated with the identity commitment
--   `identityPath`: The Merkle path to the identity commmitment
+-   `identityPath`: The Merkle path to the identity commitment
 -   `identityPathIndex`: The leaf index of the identity commitment
 -   `identityPathElements`: The elements along the above Merkle path
 
@@ -212,7 +212,7 @@ Only `witness` is essential to generate the proof; the other data is only
 useful for debugging and additional off-chain checks, such as verifying the
 signature and the Merkle tree root.
 
-**`formatForVerifierContract = (proof: SnarkProof, publicSignals: SnarkPublicSignals`**
+**`formatForVerifierContract = (proof: SnarkProof, publicSignals: SnarkPublicSignals)`**
 
 Converts the data in `proof` and `publicSignals` to strings and rearranges
 elements of `proof.pi_b` so that `snarkjs`'s `verifier.sol` will accept it.

apps/docs/versioned_docs/version-V1/usage.md

@@ -26,7 +26,7 @@ With the Client contract as the owner of the Semaphore contract, the Client
 contract may call owner-only Semaphore functions such as
 `addExternalNullifier()`.
 
-## Add, deactivate, or reactivate external nullifiiers
+## Add, deactivate, or reactivate external nullifiers
 
 These functions add, deactivate, and reactivate an external nullifier respectively.
 As each identity can only signal once to an external nullifier, and as a signal

apps/docs/versioned_docs/version-V1/what-is-semaphore.md

@@ -55,7 +55,7 @@ In sum, Semaphore provides the ability to:
 ### External nullifiers
 
 Think of an external nullifier as a voting booth where each user may only cast
-one vote. If they try to cast a second vote a the same booth, that vote is
+one vote. If they try to cast a second vote at the same booth, that vote is
 invalid.
 
 An external nullifier is any 29-byte value. Semaphore always starts with one
@@ -89,7 +89,7 @@ An anonymous voting app would be configured differently:
 | ----------------------------------- | ------------------------ |
 | The hash of the respondent's answer | The hash of the question |
 
-This allows any user to vote with an arbitary response (e.g. yes, no, or maybe)
+This allows any user to vote with an arbitrary response (e.g. yes, no, or maybe)
 to any question. The user, however, can only vote once per question.
 
 ## About the code

apps/docs/versioned_docs/version-V2/subgraph.md

@@ -9,7 +9,7 @@ Site owners publish _subgraphs_ that expose site data for anyone to query.
 Semaphore's subgraph allows you to retrieve data from the [`Semaphore.sol`](https://github.com/semaphore-protocol/semaphore/tree/v2.6.1/packages/contracts/Semaphore.sol) smart contract.
 
 :::tip
-The Graph protocol uses the [GraphQL](https://graphql.org/) query lanaguage. For examples, see the [GraphQL API documentation](https://thegraph.com/docs/developer/graphql-api). Visit the [subgraph repository](https://github.com/semaphore-protocol/subgraph) to see the list of Semaphore subgraphs.
+The Graph protocol uses the [GraphQL](https://graphql.org/) query language. For examples, see the [GraphQL API documentation](https://thegraph.com/docs/developer/graphql-api). Visit the [subgraph repository](https://github.com/semaphore-protocol/subgraph) to see the list of Semaphore subgraphs.
 :::
 
 ## Schema

apps/docs/versioned_docs/version-V3/faq.md

@@ -14,7 +14,7 @@ It also provides a simple mechanism to prevent double-signaling, which means you
 
 ## Where can I ask questions about Semaphore?
 
-You can ask questions about Semaphore on [Discord](https://semaphore.pse.dev/discord) or by opening a [Semaphore Discussion](https://github.com/semaphore-protocol/semaphore/discussions).
+You can ask questions about Semaphore on [Telegram](https://semaphore.pse.dev/telegram) or by opening a [Semaphore Discussion](https://github.com/semaphore-protocol/semaphore/discussions).
 
 ## Why do identities require both the `identity trapdoor` and the `identity nullifier`?
 

apps/docs/versioned_docs/version-V3/glossary.md

@@ -37,7 +37,7 @@ For more information, see [Merkle tree in Wikipedia](https://en.wikipedia.org/wi
 
 ## Nullifier
 
-A value used to prevent double entry or double signalling.
+A value used to prevent double entry or double signaling.
 
 See [Circuit nullifier hash](/V3/technical-reference/circuits/#nullifier-hash).
 

apps/docs/versioned_docs/version-V3/troubleshooting.mdx

@@ -7,7 +7,7 @@ import TabItem from "@theme/TabItem"
 
 # Troubleshooting
 
-If these suggestions do not work, feel free to ask in the [Semaphore Discussions](https://github.com/semaphore-protocol/semaphore/discussions) or in the `dev-chat` channel in the [Semaphore Discord](https://semaphore.pse.dev/discord).
+If these suggestions do not work, feel free to ask in the [Semaphore Discussions](https://github.com/semaphore-protocol/semaphore/discussions) or in the [Semaphore Telegram](https://semaphore.pse.dev/telegram).
 
 ## Using Semaphore in the frontend
 

apps/docs/versioned_docs/version-V4-beta/trusted-setup.md

@@ -1,50 +0,0 @@
----
-sidebar_position: 6
----
-
-# Trusted Setup
-
-gm, everyone 😎 we are excited to announce the upcoming Multi-Party Computation (MPC) Phase 2 Trusted Setup ceremony for the Semaphore V4 circuit - this is crucial for establishing a robust security foundation for the cryptographic protocol 🎉
-
-The ceremony will take place from **June 10** to **July 10**. If all goes to plan, finalization should take place on **July 15** with the announcement of the final beacon on **July 12**.
-
-## Securing Semaphore V4
-
-To contribute to this ceremony, you will just need your browser!
-
-1. Visit [ceremony.pse.dev](https://ceremony.pse.dev/projects/Semaphore%20V4%20Ceremony).
-2. Login and associate your **Github** account.
-3. Hit the `contribute` button and wait for your turn.
-
-nb. you will find your contribution certificate on your GitHub gists - and, if all goes wrong or you feel lost, there are instructions on site or post a message on Semaphore / PSE discord.
-
-## What You Need to Know About the Ceremony
-
-### Your Role
-
-Many zero-knowledge proof systems, including those based on the Groth16 scheme, require this layer of randomness, often referred to as "toxic waste” which must remain unknown to anyone to maintain the integrity of the zero-knowledge proof system. Trusted setups rely on a 1 of N honest participant assumption. As long as just one participant actually discards their “toxic waste”, the proof system will be secure. You can be that one participant by providing your unique entropy with your contribution, making the ceremony unpredictable and unbiased, safeguarding the entire process against potential vulnerabilities.
-
-### Why It Matters
-
-Trusted setups are crucial as they generate a set of parameters necessary to initiate SNARK-based systems. Through a series of computations performed by various participants. This sequence involves downloading previous contributions, adding generated randomness, and uploading the results of your contribution. These contributions are then integrated into the final artifacts crucial for proof generation/verification.
-
-### Semaphore Circuit
-
-The [Semaphore circuit](https://github.com/semaphore-protocol/semaphore/blob/main/packages/circuits/src/semaphore.circom) centered around the creation of the _Semaphore identity_ and _identity commitment_, includes verification processes, and facilitates the generation of the _nullifier_. We are going to support `MAX_DEPTH` from 1 to 32 - therefore you will have to contribute to 32 variants of the same circuit. Since the constraints will range from 2k to less than 10k with very small artifacts size (≤ 8mb x contribution), the waiting and contribution time shouldn’t be much!
-
-### Transparency and Fairness
-
-We are committed to transparency on ceremony setup, execution, finalization, and later verification. Our primary goal is to **engage as many contributors as possible** to ensure the circuit is **secure** and **production-ready**. To this end, the ceremony is designed to _maximize contributor inclusion_, monitor & troubleshoot whenever is needed, _lower the entry barriers_, _making contributiong as effortless as possible_. A key step towards achieving these goals is running the ceremony w/ [p0tion](https://github.com/privacy-scaling-explorations/p0tion): an in-house developed, open-source, battle-tested tool that is fully equipped to meet our needs.
-
-### Ceremony Settings
-
-To protect the ceremony from sybils, in order to contribute you must have a GitHub account such that you have: 1 public repository, at least 1 follower, following at least 5 other accounts and, your account is at least 1 month old. While to protect from fake contributors or people hanging due to connection/machine resources, we are going to set a 10 minutes time-window on contributions (+ 1 hour verification) - after this amount of time, you will be kicked out and will have to wait **1 day** before you can contribute again.
-
-## Troubleshooting
-
--   If you have been idle longer than expected, it may be that the current contributor has been blocked for some reason. Do not worry, the maximum wait in this case is one hour, after which you will be able to continue contributing.
-
-### Learn more about Trusted Setups
-
--   [How Do Trusted Setups Work? - Vitalik](https://vitalik.eth.limo/general/2022/03/14/trustedsetup.html)
--   [p0tion FAQs](https://p0tion.super.site/faqs#block-cebca23ebb514c2ea096ad44d4833356)

apps/docs/versioned_docs/version-V4/benchmarks.md

@@ -0,0 +1,131 @@
+---
+sidebar_position: 8
+---
+
+# Benchmarks
+
+Semaphore v4 introduces new features and performance improvements. Detailed changes are available in the [release changelog](https://github.com/semaphore-protocol/semaphore/releases/tag/v4.0.0).
+
+The primary changes in benchmark values are driven by the two major protocol updates:
+
+-   New [Identity schema](https://github.com/semaphore-protocol/semaphore/tree/main/packages/identity).
+
+-   [LeanIMT](https://github.com/privacy-scaling-explorations/zk-kit/tree/main/packages/lean-imt): New optimized IMT.
+
+## New Identity schema
+
+Semaphore v4 includes a new schema for the identities allowing the creation and verification of signatures.
+
+Although the new Identity package is slightly slower than the one in Semaphore v3 (by just a few milliseconds), the trade-off is minimal considering the included functionality.
+
+The new identity schema adds additional constraints to the Semaphore v4 circuit; however, this does not negatively impact overall performance of the protocol.
+
+## LeanIMT
+
+Semaphore v4 uses the LeanIMT data structure for group operations, an improvement over the IMT used in v3.
+
+For further details, see the [LeanIMT paper](https://github.com/privacy-scaling-explorations/zk-kit/tree/main/papers/leanimt).
+
+The LeanIMT offers dynamic depth, resulting in faster and more cost-effective group operations, across Node.js, browser and smart contracts.
+
+Semaphore v4 support tree depths from 1 to 32, while v3 supports depths from 16 to 32, both for proof generation and verification.
+
+## System Specifications and Software environment
+
+All the benchmarks were run in an environment with these properties:
+
+**System Specifications**
+
+Computer: MacBook Pro
+
+Chip: Apple M2 Pro
+
+Memory (RAM): 16 GB
+
+Operating System: macOS Sequoia version 15.0.1
+
+**Software environment**
+
+Node.js version: 20.18.0
+
+Browser: Google Chrome Version 130.0.6723.92 (Official Build) (arm64)
+
+## Running the benchmarks
+
+### Javascript and Circom
+
+GitHub repository to the run Node.js, browser and Circom benchmarks: https://github.com/vplasencia/semaphore-benchmarks
+
+### Solidity
+
+GitHub repository to run the Solidity benchmarks: https://github.com/semaphore-protocol/semaphore
+
+## Node.js benchmarks
+
+### Identities
+
+![Identities](../../assets/img-benchmarks/node/identity-node-benchmarks.png)
+
+### Create Group
+
+Create group, either empty or with initial members.
+
+![Create Group](../../assets/img-benchmarks/node/create-group-node-benchmarks.png)
+
+### Add Member
+
+Add a member to groups with different sizes.
+
+![Add Member](../../assets/img-benchmarks/node/add-member-node-benchmarks.png)
+
+### Generate Proof
+
+Generate a proof using groups with different numbers of members.
+
+![Generate Proof](../../assets/img-benchmarks/node/generate-proof-node-benchmarks.png)
+
+### Verify Proof
+
+Verify a proof using groups with different numbers of members.
+
+![Verify Proof](../../assets/img-benchmarks/node/verify-proof-node-benchmarks.png)
+
+## Browser benchmarks
+
+Main functions used in the browser.
+
+![Browser benchmarks](../../assets/img-benchmarks/browser/browser-benchmarks.png)
+
+## Circuit benchmarks
+
+### Semaphore V3
+
+<img
+src={require('../../assets/img-benchmarks/circuits/semaphore-v3-circuits-benchmarks.png').default}
+alt="Circuit benchmarks Semaphore v3"
+style={{ width: '300px', height: 'auto' }}
+/>
+
+### Semaphore V4
+
+<img
+src={require('../../assets/img-benchmarks/circuits/semaphore-v4-circuits-benchmarks.png').default}
+alt="Circuit benchmarks Semaphore v4"
+style={{ width: '300px', height: 'auto' }}
+/>
+
+## Contracts
+
+<img
+src={require('../../assets/img-benchmarks/contracts/contract-benchmarks.png').default}
+alt="Contract Benchmarks"
+style={{ width: '590px', height: 'auto' }}
+/>
+
+### Semaphore V3 gas report
+
+![Contracts benchmarks Semaphore v3](../../assets/img-benchmarks/contracts/semaphore-v3-contracts-benchmarks.png)
+
+### Semaphore V4 gas report
+
+![Contracts benchmarks Semaphore v4](../../assets/img-benchmarks/contracts/semaphore-v4-contracts-benchmarks.png)

apps/docs/versioned_docs/version-V4/credits.md

@@ -1,5 +1,5 @@
 ---
-sidebar_position: 12
+sidebar_position: 13
 ---
 
 # Credits
@@ -17,3 +17,4 @@ Semaphore is the work of several people, for a complete list of contributors you
 -   [LauNaMu](https://github.com/0xyNaMu)
 -   [0xjei](https://github.com/0xjei)
 -   [Mari Poveda](https://github.com/maripoveda)
+-   [Gauthier](https://github.com/sripwoud)

apps/docs/versioned_docs/version-V4/faq.md

@@ -1,12 +1,12 @@
 ---
-sidebar_position: 11
+sidebar_position: 12
 ---
 
 # FAQ
 
 ## Where can I ask questions about Semaphore?
 
-You can ask questions about Semaphore on [Discord](https://semaphore.pse.dev/discord) or by opening a [Semaphore Discussion](https://github.com/semaphore-protocol/semaphore/discussions). The most frequent questions will be listed below.
+You can ask questions about Semaphore on [Telegram](https://semaphore.pse.dev/telegram) or by opening a [Semaphore Discussion](https://github.com/semaphore-protocol/semaphore/discussions). The most frequent questions will be listed below.
 
 ## Why should I prevent proofs from being verified twice?
 

apps/docs/versioned_docs/version-V4/glossary.md

@@ -1,5 +1,5 @@
 ---
-sidebar_position: 8
+sidebar_position: 9
 ---
 
 # Glossary

apps/docs/versioned_docs/version-V4/guides/identities.mdx

@@ -20,7 +20,7 @@ To prevent fraud, the owner should keep their private key secret.
 
 ## Install package
 
-In your code, use the [`@semaphore-protocol/identity`](https://github.com/semaphore-protocol/semaphore/tree/main/packages/identity) package to manage Semaphore identites.
+In your code, use the [`@semaphore-protocol/identity`](https://github.com/semaphore-protocol/semaphore/tree/main/packages/identity) package to manage Semaphore identities.
 
 <Tabs
   defaultValue="npm"
@@ -109,3 +109,33 @@ After a message is signed, anyone can verify the signature using the message its
 // Static method.
 Identity.verifySignature(message, signature, identity1.publicKey)
 ```
+
+## Export and import an identity
+
+A Semaphore Identity can be exported and then imported later for reuse.
+
+### Export an identity
+
+Returns the private key encoded as a base64 string.
+
+```ts
+import { Identity } from "@semaphore-protocol/identity"
+
+const identity = new Identity()
+
+const privateKey = identity.export()
+```
+
+### Import an identity
+
+Returns a Semaphore identity based on a private key encoded as a base64 string.
+
+```ts
+import { Identity } from "@semaphore-protocol/identity"
+
+const identity = new Identity()
+
+const privateKey = identity.export()
+
+const identity2 = Identity.import(privateKey)
+```

apps/docs/versioned_docs/version-V4/guides/proofs.mdx

@@ -79,7 +79,7 @@ const group = new Group(members)
 
 Each proof requires a [scope](/glossary#scope), on which each user may only generate one valid proof. The scope, together with the user's private key, is used to generate the nullifier, which is the value you can actually use to check whether a proof with that scope has already been generated by that user. In a voting application where double-voting must be prevented, the scope could be the ballot id, or the Merkle root of the group.
 
-### 4. Generate the anomymous message
+### 4. Generate the anonymous message
 
 Finally, you can generate the proof with the anonymous message using the `generateProof` function. For example:
 

apps/docs/versioned_docs/version-V4/resources.mdx

@@ -1,5 +1,5 @@
 ---
-sidebar_position: 9
+sidebar_position: 10
 ---
 
 import Articles from '@site/src/components/Articles';

apps/docs/versioned_docs/version-V4/troubleshooting.md

@@ -1,5 +1,5 @@
 ---
-sidebar_position: 10
+sidebar_position: 11
 ---
 
 import Tabs from "@theme/Tabs"
@@ -7,13 +7,7 @@ import TabItem from "@theme/TabItem"
 
 # Troubleshooting
 
-If these suggestions do not work, feel free to ask for more help and support on [Github Discussions](https://github.com/semaphore-protocol/semaphore/discussions) or [Discord](https://semaphore.pse.dev/discord) ("dev-chat" channel).
-
-## Creating a Group
-
-When you create a group and the transaction is reverted, make sure that the group id you are using does not exist on the network you are using.
-
-To check that, you can use the [Semaphore CLI](https://github.com/semaphore-protocol/semaphore/tree/main/packages/cli) with the command `get-groups` and the network you are using and then, make sure that your group id is not part of that list. You can also use the [Semaphore explorer](https://explorer.semaphore.pse.dev/).
+If these suggestions do not work, feel free to ask for more help and support on [Github Discussions](https://github.com/semaphore-protocol/semaphore/discussions) or [Telegram](https://semaphore.pse.dev/telegram).
 
 ## Transaction reverted when using the same nullifier
 

apps/docs/versioned_docs/version-V4/what-is-semaphore.md

@@ -38,6 +38,10 @@ In addition to circuits,
 Semaphore provides [Solidity contracts](https://github.com/semaphore-protocol/semaphore/tree/main/packages/contracts)
 and [JavaScript libraries](https://github.com/semaphore-protocol/semaphore/tree/main#-packages) that allow developers to generate zero-knowledge proofs and verify them with minimal effort.
 
+## Trusted Setup Ceremony
+
+The [secure parameters](https://snark-artifacts.pse.dev) for generating valid proofs with Semaphore circuits were generated in a [Trusted Setup Ceremony](https://ceremony.pse.dev/projects/Semaphore%20V4%20Ceremony) that was completed with over 400 participants on [13 July 2024](https://etherscan.io/block/20300394).
+
 ### Audits
 
 | Version | Auditors                          | Report                                                                           | Scope                                |
@@ -46,7 +50,3 @@ and [JavaScript libraries](https://github.com/semaphore-protocol/semaphore/tree/
 | v2.5.0  | [PSE](https://pse.dev/)           | [Semaphore_2.5.0_Audit.pdf](https://semaphore.pse.dev/Semaphore_2.5.0_Audit.pdf) | `contracts`, `libraries`             |
 | v3.0.0  | [Veridise](https://veridise.com/) | [Semaphore_3.0.0_Audit.pdf](https://semaphore.pse.dev/Semaphore_3.0.0_Audit.pdf) | `circuits`, `contracts`              |
 | v4.0.0  | [PSE](https://pse.dev/)           | [Semaphore_4.0.0_Audit.pdf](https://semaphore.pse.dev/Semaphore_4.0.0_Audit.pdf) | `circuits`, `contracts`, `libraries` |
-
-:::caution
-Semaphore V4 is in early testing and might have bugs. Please, don't use it in production.
-:::

apps/docs/versions.json

@@ -1 +1 @@
-["V4-beta", "V3", "V2", "V1"]
+["V4", "V3", "V2", "V1"]

apps/subgraph/README.md

@@ -31,7 +31,7 @@
             🔎 Issues
         </a>
         <span>&nbsp;&nbsp;|&nbsp;&nbsp;</span>
-        <a href="https://semaphore.pse.dev/discord">
+        <a href="https://semaphore.pse.dev/telegram">
             🗣️ Chat &amp; Support
         </a>
     </h4>
@@ -42,15 +42,22 @@
 
 ## Networks
 
-| Semaphore version | Sepolia                                                                                           | Polygon Mumbai                                                                                           | Optimism Sepolia                                                                                                    | Arbitrum Sepolia                                                                                                    | Arbitrum One                                                                                                          | Polygon Amoy                                                                                            |
-| ----------------- | ------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------- |
-| v2.0              | N/A                                                                                               | N/A                                                                                                      | N/A                                                                                                                 | N/A                                                                                                                 | [semaphore-protocol/arbitrum](https://thegraph.com/hosted-service/subgraph/semaphore-protocol/arbitrum)               | N/A                                                                                                     |
-| v2.5              | N/A                                                                                               | N/A                                                                                                      | N/A                                                                                                                 | N/A                                                                                                                 | N/A                                                                                                                   | N/A                                                                                                     |
-| v2.6              | N/A                                                                                               | N/A                                                                                                      | N/A                                                                                                                 | N/A                                                                                                                 | [semaphore-protocol/arbitrum-86337c](https://thegraph.com/hosted-service/subgraph/semaphore-protocol/arbitrum-86337c) | N/A                                                                                                     |
-| v3.0 - v3.1       | N/A                                                                                               | N/A                                                                                                      | N/A                                                                                                                 | N/A                                                                                                                 | [semaphore-protocol/arbitrum-72dca3](https://thegraph.com/hosted-service/subgraph/semaphore-protocol/arbitrum-72dca3) | N/A                                                                                                     |
-| >= v3.2           | [semaphore-sepolia](https://api.studio.thegraph.com/query/14377/semaphore-sepolia/v3.6.1)         | [semaphore-mumbai](https://api.studio.thegraph.com/query/14377/semaphore-mumbai/v3.6.1)                  | N/A                                                                                                                 | N/A                                                                                                                 | [semaphore-arbitrum](https://api.studio.thegraph.com/query/14377/semaphore-arbitrum/v3.6.1)                           | N/A                                                                                                     |
-| v4.0.0-beta       | [semaphore-sepolia](https://api.studio.thegraph.com/query/14377/semaphore-sepolia/v4.0.0-beta)    | [semaphore-matic-mumbai](https://api.studio.thegraph.com/query/14377/semaphore-matic-mumbai/v4.0.0-beta) | [semaphore-optimism-sepolia](https://api.studio.thegraph.com/query/14377/semaphore-optimism-sepolia/v4.0.0-beta)    | [semaphore-arbitrum-sepolia](https://api.studio.thegraph.com/query/14377/semaphore-arbitrum-sepolia/v4.0.0-beta)    | N/A                                                                                                                   | N/A                                                                                                     |
-| >= v4.0.0-beta.17 | [semaphore-sepolia](https://api.studio.thegraph.com/query/14377/semaphore-sepolia/v4.0.0-beta.17) | N/A                                                                                                      | [semaphore-optimism-sepolia](https://api.studio.thegraph.com/query/14377/semaphore-optimism-sepolia/v4.0.0-beta.17) | [semaphore-arbitrum-sepolia](https://api.studio.thegraph.com/query/14377/semaphore-arbitrum-sepolia/v4.0.0-beta.17) | N/A                                                                                                                   | [semaphore-matic-amoy](https://api.studio.thegraph.com/query/14377/semaphore-matic-amoy/v4.0.0-beta.17) |
+You can access any subgraph supported by Semaphore with the following URL: `https://api.studio.thegraph.com/query/14377/semaphore-<network-name>/v4.2.0`.
+
+Supported networks:
+
+-   `sepolia`
+-   `optimism`
+-   `optimism-sepolia`
+-   `arbitrum`
+-   `arbitrum-sepolia`
+-   `matic`
+-   `matic-amoy`
+-   `base-sepolia`
+-   `base`
+-   `linea-sepolia`
+-   `linea`
+-   `scroll-sepolia`
 
 ## 🛠 Install
 

apps/subgraph/package.json

@@ -20,7 +20,7 @@
     "dependencies": {
         "@graphprotocol/graph-cli": "0.78.0",
         "@graphprotocol/graph-ts": "0.35.1",
-        "@semaphore-protocol/utils": "4.0.0"
+        "@semaphore-protocol/utils": "workspace:packages/utils"
     },
     "devDependencies": {
         "@types/mustache": "^4.2.2",

apps/subgraph/scripts/generate-subgraph.js

@@ -6,8 +6,20 @@ const network = process.argv.at(2)
 
 const template = readFileSync("./subgraph.template.yaml", "utf-8")
 
+function mapNetwork(n) {
+    if (n === "matic-amoy") {
+        return "polygon-amoy"
+    }
+
+    if (n === "arbitrum") {
+        return "arbitrum-one"
+    }
+
+    return network
+}
+
 const subgraph = Mustache.render(template, {
-    network: network === "matic-amoy" ? "polygon-amoy" : network,
+    network: mapNetwork(network),
     ...getDeployedContract(network)
 })
 

apps/website/README.md

@@ -34,7 +34,7 @@
             🔎 Issues
         </a>
         <span>&nbsp;&nbsp;|&nbsp;&nbsp;</span>
-        <a href="https://semaphore.pse.dev/discord">
+        <a href="https://semaphore.pse.dev/telegram">
             🗣️ Chat &amp; Support
         </a>
     </h4>

apps/website/src/app/build/page.tsx

@@ -26,7 +26,7 @@ export default function Build() {
             url: "https://github.com/semaphore-protocol/boilerplate",
             details: [
                 "Begin your projects with a ready-to-use example template",
-                "Create identity, join group, send anonmous feedback",
+                "Create identity, join group, send anonymous feedback",
                 "Easily modify to align with specific project goals"
             ]
         },
@@ -133,7 +133,7 @@ export default function Build() {
                     </VStack>
                 </Flex>
 
-                <Box position="relative" w={{ base: "full", xl: "727px" }} h="630" overflow="hidden">
+                <Box position="relative" w={{ base: "full", xl: "727px" }} h="630px" overflow="hidden">
                     <Image
                         src="https://semaphore.cedoor.dev/flower-shadow.jpg"
                         alt=""

apps/website/src/app/layout.tsx

@@ -32,19 +32,18 @@ export default function RootLayout({ children }: { children: React.ReactNode })
             <body suppressHydrationWarning>
                 <Providers>
                     <Banner>
-                        Semaphore V4
                         <Link
                             _hover={{
                                 textDecoration: "underline",
                                 textDecorationColor: "primary.600"
                             }}
-                            href="https://ceremony.pse.dev/projects/Semaphore%20V4%20Ceremony"
+                            href="https://github.com/semaphore-protocol/semaphore/releases/tag/v4.0.0"
                             ml="1"
                             isExternal
                         >
-                            <b>Trusted Setup</b>
+                            <b>Semaphore V4</b>
                         </Link>{" "}
-                        ceremony is open for contributions until <b>July 10</b>.
+                        has been released 🚀
                     </Banner>
                     <Navbar />
                     <Container maxW="1440px" px={{ base: "5", md: "10" }}>

apps/website/src/app/page.tsx

@@ -1,11 +1,13 @@
 import { Box, Button, Card, CardBody, HStack, Heading, Image, Link, Stack, Text, VStack } from "@chakra-ui/react"
-import NextLink from "next/link"
 import { Sora } from "next/font/google"
+import NextLink from "next/link"
 import Carousel from "../components/Carousel"
 import ProjectCard from "../components/ProjectCard"
 import events from "../data/events.json"
 import allProjects from "../data/projects.json"
-import IconDiscord from "../icons/IconDiscord"
+import IconTelegram from "../icons/IconTelegram"
+import HRoadmap from "@/components/HRoadmap"
+import VRoadmap from "@/components/VRoadmap"
 
 const sora = Sora({
     subsets: ["latin"]
@@ -220,6 +222,35 @@ export default function Home() {
                 </Card>
             </HStack>
 
+            <VStack mb="32" spacing="32">
+                <VStack w="full" maxW="1110px">
+                    <Heading fontSize={{ base: "30px", md: "44px" }} pb="90px">
+                        2024 Roadmap
+                    </Heading>
+
+                    <HStack display={{ base: "none", md: "flex" }} w="full" mt="60px">
+                        <HRoadmap />
+                    </HStack>
+
+                    <VStack display={{ base: "flex", md: "none" }}>
+                        <VRoadmap />
+                    </VStack>
+                </VStack>
+
+                <VStack maxW="650" align="center" spacing="8">
+                    <Heading fontSize={{ base: "30px", md: "44px" }}>Join the Semaphore community</Heading>
+                    <Text fontSize={{ base: "16px", md: "18px" }} textAlign="center">
+                        Ask questions, suggest ideas, stay up-to-date, and meet other people building privacy
+                        applications with Zero Knowledge.
+                    </Text>
+                    <Link href="https://semaphore.pse.dev/telegram" isExternal>
+                        <Button leftIcon={<IconTelegram />} size="lg">
+                            Telegram
+                        </Button>
+                    </Link>
+                </VStack>
+            </VStack>
+
             <VStack justify="center" spacing="40" py="32" position="relative">
                 <Box
                     zIndex="-1"
@@ -239,27 +270,16 @@ export default function Home() {
                     />
                 </Box>
 
-                <Stack direction={{ base: "column", md: "row" }} px={{ base: "0", md: "12" }} spacing="32">
-                    <VStack maxW="450" align="left" spacing="8">
-                        <Heading fontSize={{ base: "30px", md: "44px" }}>Join the Semaphore community</Heading>
-                        <Text fontSize={{ base: "16px", md: "18px" }}>
-                            Ask questions, suggest ideas, stay up-to-date, and meet other people building privacy
-                            applications with Zero Knowledge.
-                        </Text>
-                        <Link href="https://semaphore.pse.dev/discord" isExternal>
-                            <Button leftIcon={<IconDiscord />} size="lg">
-                                Discord
-                            </Button>
-                        </Link>
-                    </VStack>
+                <Stack direction={{ base: "column", md: "row" }} px={{ base: "0", md: "12" }} w="full">
+                    <Box flex="1" />
 
                     <Card
-                        bg="inherit"
+                        flex="1"
+                        bg="darkBlue"
                         color="white"
-                        backdropFilter="blur(4px)"
                         borderRadius="18px"
                         border="1px"
-                        borderColor="white"
+                        borderColor="text.900"
                         padding="50px"
                     >
                         <CardBody padding="0">
@@ -267,7 +287,7 @@ export default function Home() {
                                 Upcoming Events
                             </Heading>
 
-                            <VStack align="left" spacing="10" maxH="600" overflowY="auto">
+                            <VStack align="left" spacing="10" maxH="600px" overflowY="auto">
                                 {events.map((event) => (
                                     <Link href={event.link} key={event.name} isExternal>
                                         <VStack align="left">

apps/website/src/components/Footer.tsx

@@ -2,7 +2,7 @@ import { Divider, Heading, HStack, Link, Stack, Text, VStack } from "@chakra-ui/
 import Image from "next/image"
 import NextLink from "next/link"
 import IconArrowUpRight from "../icons/IconArrowUpRight"
-import IconDiscord from "../icons/IconDiscord"
+import IconTelegram from "../icons/IconTelegram"
 import IconThumbsUp from "../icons/IconThumbsUp"
 import IconX from "@/icons/IconX"
 
@@ -59,11 +59,11 @@ export default function Footer() {
             <Divider />
             <VStack spacing="5">
                 <HStack spacing="5">
-                    <Link href="https://semaphore.pse.dev/discord" isExternal>
+                    <Link href="https://semaphore.pse.dev/telegram" isExternal>
                         <HStack>
-                            <IconDiscord boxSize={{ base: "16px", md: "24px" }} />
+                            <IconTelegram boxSize={{ base: "16px", md: "24px" }} />
                             <Heading fontSize={{ base: "14px", md: "18px" }} fontWeight="normal">
-                                Discord
+                                Telegram
                             </Heading>
                         </HStack>
                     </Link>

apps/website/src/components/HRoadmap.tsx

@@ -0,0 +1,58 @@
+import { Box, Text } from "@chakra-ui/react"
+import roadmap from "../data/roadmap.json"
+import IconInnerCheck from "../icons/IconInnerCheck"
+
+export default function HRoadmap() {
+    return roadmap.map((milestone, i) => (
+        <Box
+            key={milestone.name}
+            borderBottomWidth={i % 2 === 0 ? "5px" : "0px"}
+            borderTopWidth={i % 2 !== 0 ? "5px" : "0px"}
+            borderLeftWidth="1px"
+            borderColor="#1E46F2"
+            transform={i % 2 === 0 ? "translateY(-74px)" : ""}
+            h="80px"
+            w="full"
+            pos="relative"
+        >
+            {milestone.done ? (
+                <IconInnerCheck
+                    pos="absolute"
+                    top={i % 2 !== 0 ? "-14px" : "inherit"}
+                    bottom={i % 2 === 0 ? "-14px" : "inherit"}
+                    left="-12px"
+                    bg="#1E46F2"
+                    borderRadius="50px"
+                    p="7px"
+                    w="24px"
+                    h="24px"
+                    color="white"
+                />
+            ) : (
+                <Box
+                    pos="absolute"
+                    top={i % 2 !== 0 ? "-14px" : "inherit"}
+                    bottom={i % 2 === 0 ? "-14px" : "inherit"}
+                    left="-12px"
+                    bg="darkBlueBg"
+                    borderWidth="5px"
+                    borderColor="#1E46F2"
+                    borderRadius="50px"
+                    w="24px"
+                    h="24px"
+                />
+            )}
+            <Text
+                pos="absolute"
+                bg="darkBlueBg"
+                fontSize="14px"
+                py="5px"
+                top={i % 2 === 0 ? "-35px" : "inherit"}
+                bottom={i % 2 !== 0 ? "-35px" : "inherit"}
+                left="-1px"
+            >
+                {milestone.name}
+            </Text>
+        </Box>
+    ))
+}

apps/website/src/components/Navbar.tsx

@@ -20,7 +20,7 @@ import {
 } from "@chakra-ui/react"
 import Image from "next/image"
 import NextLink from "next/link"
-import IconDiscord from "../icons/IconDiscord"
+import IconTelegram from "../icons/IconTelegram"
 import IconMenu from "../icons/IconMenu"
 import IconThumbsUp from "../icons/IconThumbsUp"
 import NavbarLinks from "./NavbarLinks"
@@ -71,11 +71,11 @@ export default function Navbar() {
 
                                 <VStack w="full" justify="center" spacing="5">
                                     <HStack spacing="5">
-                                        <Link href="https://semaphore.pse.dev/discord" isExternal>
+                                        <Link href="https://semaphore.pse.dev/telegram" isExternal>
                                             <HStack>
-                                                <IconDiscord boxSize={{ base: "16px", md: "24px" }} />
+                                                <IconTelegram boxSize={{ base: "16px", md: "24px" }} />
                                                 <Heading fontSize={{ base: "14px", md: "18px" }} fontWeight="normal">
-                                                    Discord
+                                                    Telegram
                                                 </Heading>
                                             </HStack>
                                         </Link>

apps/website/src/components/VRoadmap.tsx

@@ -0,0 +1,61 @@
+import { Box, Text } from "@chakra-ui/react"
+import roadmap from "../data/roadmap.json"
+import IconInnerCheck from "../icons/IconInnerCheck"
+
+export default function VRoadmap() {
+    return roadmap.map((milestone, i) => (
+        <Box
+            key={milestone.name}
+            ml="-74px"
+            borderLeftWidth={i % 2 === 0 ? "5px" : "0px"}
+            borderRightWidth={i % 2 !== 0 ? "5px" : "0px"}
+            borderTopWidth="1px"
+            borderColor="#1E46F2"
+            transform={i % 2 === 0 ? "translateX(74px)" : ""}
+            h="80px"
+            w="80px"
+            pos="relative"
+        >
+            {milestone.done ? (
+                <IconInnerCheck
+                    pos="absolute"
+                    right={i % 2 !== 0 ? "-14px" : "inherit"}
+                    left={i % 2 === 0 ? "-14px" : "inherit"}
+                    top="-12px"
+                    bg="#1E46F2"
+                    borderRadius="50px"
+                    p="7px"
+                    w="24px"
+                    h="24px"
+                    color="white"
+                />
+            ) : (
+                <Box
+                    pos="absolute"
+                    right={i % 2 !== 0 ? "-14px" : "inherit"}
+                    left={i % 2 === 0 ? "-14px" : "inherit"}
+                    top="-12px"
+                    bg="darkBlueBg"
+                    borderWidth="5px"
+                    borderColor="#1E46F2"
+                    borderRadius="50px"
+                    w="24px"
+                    h="24px"
+                />
+            )}
+            <Text
+                pos="absolute"
+                bg="darkBlueBg"
+                fontSize="14px"
+                w="140px"
+                px="16px"
+                textAlign={i % 2 === 0 ? "left" : "right"}
+                left={i % 2 === 0 ? "70px" : "inherit"}
+                right={i % 2 !== 0 ? "70px" : "inherit"}
+                top="-5px"
+            >
+                {milestone.name}
+            </Text>
+        </Box>
+    ))
+}

apps/website/src/data/events.json

@@ -1,20 +1,20 @@
 [
     {
-        "name": "Trusted Setup ceremony",
-        "date": "June 10 - July 10, 2024",
-        "description": "The Semaphore team will perform the Phase 2 MPC Trusted Setup ceremony to secure V4 circuit variants from 1 to 32 tree depths.",
-        "link": "https://docs.semaphore.pse.dev/trusted-setup"
-    },
-    {
-        "name": "ETHRome",
-        "date": "Oct 4-6, 2024",
-        "description": "Semaphore team will deliver an in-person talk and sponsor prizes for the hackathon.",
-        "link": "https://www.ethrome.org/"
+        "name": "DIF - Decentralized Identity Foundation",
+        "date": "Oct 1 - Nov 4, 2024",
+        "description": "Semaphore team will deliver a talk and sponsor prizes for the online hackathon.",
+        "link": "https://identity.foundation/"
     },
     {
         "name": "Devcon",
         "date": "Nov 12-15, 2024",
         "description": "Semaphore team will deliver an in-person talk and run workshops.",
         "link": "https://devcon.org/en/"
+    },
+    {
+        "name": "ETHIndia",
+        "date": "Dec 6-8, 2024",
+        "description": "Semaphore team will deliver an in-person talk on Semaphore and Bandada.",
+        "link": "https://ethindia.co"
     }
 ]

apps/website/src/data/projects.json

@@ -11,15 +11,14 @@
         }
     },
     {
-        "name": "Unirep",
-        "tagline": "Private and nonrepudiable reputation system based on ZKP.",
-        "categories": ["Reputation", "Identity", "Social"],
-        "pse": true,
+        "name": "Worldcoin",
+        "categories": ["Identity"],
+        "tagline": "A global digital currency offering universal access to a more inclusive financial system.",
+        "pse": false,
         "icon": "",
         "links": {
-            "website": "https://developer.unirep.io",
-            "github": "https://github.com/Unirep",
-            "discord": "https://discord.gg/VzMMDJmYc5"
+            "github": "https://github.com/worldcoin",
+            "website": "https://worldcoin.org"
         }
     },
     {
@@ -33,6 +32,26 @@
             "website": "https://bandada.pse.dev"
         }
     },
+    {
+        "name": "ZkDemocracy",
+        "categories": ["Infra", "Data"],
+        "tagline": "ZkDemocracy is a ready-to-use anonymous voting system based on Semaphore.",
+        "pse": false,
+        "icon": "",
+        "links": {
+            "github": "https://github.com/TheBojda/zkdemocracy"
+        }
+    },
+    {
+        "name": "Super Secret ZK Ballot",
+        "tagline": "A Solidity contract for anonymous voting.",
+        "categories": ["Voting"],
+        "pse": false,
+        "icon": "",
+        "links": {
+            "github": "https://github.com/dutragustavo/super-secret-zkballot"
+        }
+    },
     {
         "name": "ZK Proof of Humanity",
         "tagline": "A project that allows humans, registered in Proof of Humanity, to prove their humanity without doxing.",
@@ -106,20 +125,7 @@
         "icon": "",
         "links": {
             "website": "https://explorer.semaphore.pse.dev",
-            "github": "https://github.com/semaphore-protocol/explorer",
-            "discord": "https://semaphore.pse.dev/discord"
-        }
-    },
-    {
-        "name": "Semaphore Discord Bot",
-        "tagline": "A Discord Bot for Semaphore",
-        "categories": ["Development"],
-        "pse": true,
-        "icon": "",
-        "links": {
-            "website": "https://discord.com/api/oauth2/authorize?client_id=1082429985496772628&permissions=1024&scope=bot",
-            "github": "https://github.com/semaphore-protocol/discord-bot",
-            "discord": "https://semaphore.pse.dev/discord"
+            "github": "https://github.com/semaphore-protocol/explorer"
         }
     },
     {
@@ -487,14 +493,15 @@
         }
     },
     {
-        "name": "Worldcoin",
-        "categories": ["Identity"],
-        "tagline": "A global digital currency offering universal access to a more inclusive financial system.",
-        "pse": false,
+        "name": "Unirep",
+        "tagline": "Private and nonrepudiable reputation system based on ZKP.",
+        "categories": ["Reputation", "Identity", "Social"],
+        "pse": true,
         "icon": "",
         "links": {
-            "github": "https://github.com/worldcoin",
-            "website": "https://worldcoin.org"
+            "website": "https://developer.unirep.io",
+            "github": "https://github.com/Unirep",
+            "discord": "https://discord.gg/VzMMDJmYc5"
         }
     },
     {
@@ -537,5 +544,26 @@
             "github": "https://github.com/AsteriskDAO",
             "website": "https://ethglobal.com/showcase/asteriskdao-4hvhf"
         }
+    },
+    {
+        "name": "Pairwise",
+        "tagline": "A fun pseudonymous way to signal in Retro Funding 4.",
+        "categories": ["Retro Funding", "Public Goods", "Privacy", "Community"],
+        "pse": false,
+        "icon": "",
+        "links": {
+            "github": "https://github.com/GeneralMagicio/pairwise-RPGF4",
+            "website": "https://pairwise.vote"
+        }
+    },
+    {
+        "name": "VeilEscrow",
+        "categories": ["Privacy", "Coordination"],
+        "tagline": "Secure, private, and decentralized escrows for anonymous transactions",
+        "pse": false,
+        "icon": "",
+        "links": {
+            "github": "https://github.com/evgongora/VeilEscrow"
+        }
     }
 ]

apps/website/src/data/roadmap.json

@@ -0,0 +1,38 @@
+[
+    {
+        "name": "Launched New Website",
+        "done": true
+    },
+    {
+        "name": "V4 Audit",
+        "done": true
+    },
+    {
+        "name": "V4 Trusted Setup",
+        "done": true
+    },
+    {
+        "name": "V4 Stable Release",
+        "done": true
+    },
+    {
+        "name": "LeanIMT Paper",
+        "done": true
+    },
+    {
+        "name": "Support more Testnets/Mainnets",
+        "done": true
+    },
+    {
+        "name": "Documentation improvements",
+        "done": false
+    },
+    {
+        "name": "New Explorer",
+        "done": false
+    },
+    {
+        "name": "RLN extension",
+        "done": false
+    }
+]

apps/website/src/icons/IconInnerCheck.tsx

@@ -0,0 +1,15 @@
+import { Icon, IconProps } from "@chakra-ui/react"
+import React from "react"
+
+export default function IconInnerCheck(props: IconProps): JSX.Element {
+    return (
+        <Icon viewBox="0 0 9 7" {...props}>
+            <path
+                fillRule="evenodd"
+                clipRule="evenodd"
+                d="M7.84114 1.12297C8.23166 1.5135 8.23166 2.14666 7.84114 2.53718L3.84114 6.53718C3.45062 6.92771 2.81745 6.92771 2.42693 6.53718L0.426926 4.53718C0.0364021 4.14666 0.0364021 3.5135 0.426926 3.12297C0.817451 2.73245 1.45062 2.73245 1.84114 3.12297L3.13403 4.41586L6.42693 1.12297C6.81745 0.732447 7.45062 0.732447 7.84114 1.12297Z"
+                fill="white"
+            />
+        </Icon>
+    )
+}

apps/website/src/icons/IconTelegram.tsx

@@ -0,0 +1,13 @@
+import { Icon, IconProps } from "@chakra-ui/react"
+import React from "react"
+
+export default function IconTelegram(props: IconProps): JSX.Element {
+    return (
+        <Icon viewBox="0 0 48 48" {...props}>
+            <path
+                d="M41.4193 7.30899C41.4193 7.30899 45.3046 5.79399 44.9808 9.47328C44.8729 10.9883 43.9016 16.2908 43.1461 22.0262L40.5559 39.0159C40.5559 39.0159 40.3401 41.5048 38.3974 41.9377C36.4547 42.3705 33.5408 40.4227 33.0011 39.9898C32.5694 39.6652 24.9068 34.7955 22.2086 32.4148C21.4531 31.7655 20.5897 30.4669 22.3165 28.9519L33.6487 18.1305C34.9438 16.8319 36.2389 13.8019 30.8426 17.4812L15.7331 27.7616C15.7331 27.7616 14.0063 28.8437 10.7686 27.8698L3.75342 25.7055C3.75342 25.7055 1.16321 24.0823 5.58815 22.459C16.3807 17.3729 29.6555 12.1786 41.4193 7.30899Z"
+                fill="currentColor"
+            />
+        </Icon>
+    )
+}

package.json

@@ -9,7 +9,8 @@
     "scripts": {
         "build": "yarn build:libraries && yarn build:subgraph && yarn build:website && yarn build:docs",
         "build:libraries": "yarn workspaces foreach -Apt --no-private run build",
-        "build:subgraph": "yarn workspace semaphore-subgraph build:sepolia",
+        "clean:subgraph": "rimraf apps/subgraph/node_modules",
+        "build:subgraph": "yarn clean:subgraph && yarn workspace semaphore-subgraph build:sepolia",
         "build:website": "yarn workspace semaphore-website build",
         "build:docs": "yarn workspace semaphore-docs build",
         "compile:contracts": "yarn workspace semaphore-contracts compile",
@@ -23,12 +24,12 @@
         "format": "concurrently -c auto -g -n prettier,embark \"prettier -c .\" \"yarn workspace semaphore-docs format\"",
         "format:write": "concurrently -c auto -g -n prettier,embark \"prettier -w .\" \"yarn workspace semaphore-docs format:write\"",
         "docs": "typedoc",
-        "version:bump": "yarn workspaces foreach -A --no-private version -d ${0} && yarn version apply --all && yarn remove:stable-version-field && NO_HOOK=1 git commit -am \"chore: v${0}\" && git tag v${0}",
-        "version:publish": "yarn build:libraries && yarn clean:cli-templates && yarn workspaces foreach -A --no-private npm publish --tolerate-republish --access public",
+        "version:bump": "scripts/version.ts ${0}",
+        "version:publish": "scripts/publish.ts",
         "version:release": "changelogithub",
-        "clean": "ts-node scripts/clean-apps.ts && ts-node scripts/clean-packages.ts && yarn clean:cli-templates && rimraf node_modules",
-        "clean:cli-templates": "ts-node scripts/clean-cli-templates.ts",
-        "remove:stable-version-field": "ts-node scripts/remove-stable-version-field.ts && yarn format:write",
+        "clean": "scripts/clean-apps.ts && scripts/clean-packages.ts && yarn clean:cli-templates && rimraf node_modules",
+        "clean:cli-templates": "scripts/clean-cli-templates.ts",
+        "remove:stable-version-field": "scripts/remove-stable-version-field.ts && yarn format:write",
         "precommit": "lint-staged",
         "postinstall": "husky && git config --local core.editor cat"
     },
@@ -57,6 +58,7 @@
         "@types/glob": "^7.2.0",
         "@types/jest": "^29.5.12",
         "@types/node": "^20",
+        "@types/semver": "^7",
         "@typescript-eslint/eslint-plugin": "^7.0.2",
         "@typescript-eslint/parser": "^7.0.2",
         "changelogithub": "0.12.7",
@@ -78,6 +80,7 @@
         "lint-staged": "^15.2.2",
         "prettier": "^3.2.5",
         "rimraf": "^5.0.5",
+        "semver": "^7.6.2",
         "snarkjs": "0.7.4",
         "ts-jest": "^29.1.2",
         "ts-node": "^10.9.2",

packages/circuits/README.md

@@ -34,7 +34,7 @@
             🔎 Issues
         </a>
         <span>&nbsp;&nbsp;|&nbsp;&nbsp;</span>
-        <a href="https://semaphore.pse.dev/discord">
+        <a href="https://semaphore.pse.dev/telegram">
             🗣️ Chat &amp; Support
         </a>
     </h4>

packages/circuits/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@semaphore-protocol/circuits",
-    "version": "4.0.0",
+    "version": "4.8.2",
     "description": "Semaphore Circom circuits to generate zero-knowledge proofs.",
     "license": "MIT",
     "files": [
@@ -30,9 +30,9 @@
     "devDependencies": {
         "@semaphore-protocol/core": "workspace:^",
         "@types/mocha": "^10.0.6",
-        "@zk-kit/baby-jubjub": "1.0.1",
-        "circomkit": "^0.0.19",
+        "@zk-kit/baby-jubjub": "1.0.3",
+        "circomkit": "0.0.19",
         "mocha": "^10.2.0",
-        "poseidon-lite": "^0.2.0"
+        "poseidon-lite": "^0.3.0"
     }
 }

packages/cli-template-contracts-foundry/.editorconfig

@@ -0,0 +1,13 @@
+#root = true
+
+[*]
+indent_style = space
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+max_line_length = 120
+indent_size = 4
+
+[*.md]
+trim_trailing_whitespace = false

packages/cli-template-contracts-foundry/.env.example

@@ -0,0 +1,3 @@
+SEPOLIA_RPC_URL=
+PRIVATE_KEY=
+ETHERSCAN_API_KEY=

packages/cli-template-contracts-foundry/.gitignore

@@ -0,0 +1,43 @@
+node_modules
+.env
+
+# solidity-coverage files
+/coverage
+/coverage.json
+
+# Output of 'npm pack'
+*.tgz
+
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+.pnpm-debug.log*
+
+# Optional npm cache directory
+.npm
+.DS_Store
+
+# yarn v3
+.pnp.*
+.pnp.js
+.yarn/*
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/sdks
+!.yarn/versions
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Foundry artifact
+cache/
+out/
+
+# artifact for deploying on local Anvil node
+**/31337
+

packages/cli-template-contracts-foundry/.prettierignore

@@ -0,0 +1,30 @@
+# dependencies
+node_modules
+package-lock.json
+yarn.lock
+.yarn
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# testing
+coverage
+coverage.json
+
+# misc
+.DS_Store
+*.pem
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Foundry artifact
+cache/
+out/
+
+# artifact for deploying on local Anvil node
+**/31337

packages/cli-template-contracts-foundry/.prettierrc.json

@@ -0,0 +1,6 @@
+{
+    "semi": false,
+    "arrowParens": "always",
+    "trailingComma": "none",
+    "plugins": ["prettier-plugin-solidity"]
+}

packages/cli-template-contracts-foundry/.solhint.json

@@ -0,0 +1,6 @@
+{
+    "extends": "solhint:recommended",
+    "rules": {
+        "func-visibility": ["error", { "ignoreConstructors": true }]
+    }
+}

packages/cli-template-contracts-foundry/.yarnrc.yml

@@ -0,0 +1,7 @@
+compressionLevel: mixed
+
+enableGlobalCache: false
+
+nodeLinker: node-modules
+
+yarnPath: .yarn/releases/yarn-4.1.0.cjs

packages/cli-template-contracts-foundry/README.md

@@ -0,0 +1,113 @@
+# Semaphore Foundry Template
+
+This project demonstrates a basic Semaphore use case. It comes with a sample contract, a test for that contract and a sample script that deploys that contract.
+
+## Prerequisites
+
+This project requires [**Foundry**](https://getfoundry.sh/), and thus a [**Rust environment**](https://www.rust-lang.org/), installed in the machine.
+
+## Install
+
+### Install dependencies
+
+```bash
+yarn
+```
+
+## Usage
+
+### Compile contracts
+
+```bash
+yarn compile
+```
+
+### Test contracts
+
+```bash
+yarn test
+```
+
+You can also generate a test coverage report:
+
+```bash
+yarn test:coverage
+```
+
+Or a test gas report:
+
+```bash
+yarn test:gas-report
+```
+
+You can also start a local [Anvil node](https://book.getfoundry.sh/anvil/) with Semaphore and Feedback contracts deployed on it with:
+
+```bash
+yarn dev
+```
+
+### Code quality and formatting
+
+Run [solhint](https://github.com/protofire/solhint) to analyze the code and catch bugs:
+
+```bash
+yarn lint
+```
+
+Run [Prettier](https://prettier.io/) to check formatting rules:
+
+```bash
+yarn prettier
+```
+
+Or to automatically format the code:
+
+```bash
+yarn prettier:write
+```
+
+### Integrating with Semaphore Boilerplate
+
+You can also integrate this project with [Semaphore Boilerplate](https://github.com/semaphore-protocol/boilerplate), using this project as the contract end and connecting with Boilerplate front end.
+
+1. In `cli-template-contracts-foundry` package directory, run:
+
+    ```sh
+    yarn install
+    yarn dev
+    ```
+
+    After running `yarn dev`, notice the output of
+
+    ```sh
+    # ...
+    # ...
+
+    == Return ==
+    feedbackAddr: address 0x6f1AFCA8BCA87bF02091AF6187a5002802f9FB31
+    semaphoreAddr: address 0xb730ce6CAE3FB706e83E4E00dFA31623966570eB
+    semaphoreVerifierAddr: address 0xE2c114f548bEf410eaCe04D0390b61cc963df295
+
+    # ...
+    # ...
+    ```
+
+2. Now, with another terminal, clone Semaphore Boilerplate down:
+
+    ```sh
+    # Clone Semaphore boilerplate and build dependencies
+    git clone https://github.com/semaphore-protocol/boilerplate.git
+    cd boilerplate
+    yarn install
+
+    # Use the sample .env.example
+    cp .env.example .env
+    ```
+
+3. Open the file `apps/web-app/.env.development`. Modify the values of `NEXT_PUBLIC_FEEDBACK_CONTRACT_ADDRESS` and `NEXT_PUBLIC_SEMAPHORE_CONTRACT_ADDRESS` with **feedbackAddr** and **semaphoreAddr** values shown in step 1.
+
+4. Run the Boilerplate front end:
+
+    ```sh
+    yarn dev:web-app
+    ```

packages/cli-template-contracts-foundry/foundry.toml

@@ -0,0 +1,15 @@
+[profile.default]
+src = "src"
+out = "out"
+script = "script"
+libs = ["node_modules"]
+allow_paths = ["*", "../.."]
+
+[rpc_endpoints]
+anvil = "http://127.0.0.1:8545"
+# sepolia = "${SEPOLIA_RPC_URL}"
+
+[etherscan]
+# sepolia = { key = "${ETHERSCAN_API_KEY}" }
+
+# See more config options https://github.com/foundry-rs/foundry/blob/master/crates/config/README.md#all-options

packages/cli-template-contracts-foundry/package.json

@@ -0,0 +1,45 @@
+{
+    "name": "@semaphore-protocol/cli-template-contracts-foundry",
+    "version": "4.8.2",
+    "description": "Semaphore Foundry template.",
+    "license": "Unlicense",
+    "devDependencies": {
+        "@semaphore-protocol/contracts": "4.8.2",
+        "@zk-kit/lean-imt.sol": "2.0.0",
+        "forge-std": "github:foundry-rs/forge-std#v1.9.4",
+        "poseidon-solidity": "0.0.5",
+        "prettier": "^3.2.5",
+        "prettier-plugin-solidity": "^1.3.1",
+        "solhint": "^4.1.1",
+        "wait-on": "^8.0.1"
+    },
+    "scripts": {
+        "dev": "anvil & (wait-on tcp:8545 && forge script script/DeployFeedback.s.sol --rpc-url anvil --broadcast --sender 0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266)",
+        "compile": "forge build",
+        "clean": "forge clean",
+        "test": "forge test -vvv",
+        "test:report-gas": "forge test --gas-report",
+        "test:coverage": "forge coverage",
+        "lint": "yarn solhint \"{script,src,test}/**/*.sol\"",
+        "prettier": "prettier -c \"**/*.{json,md,svg,yml,sol}\"",
+        "prettier:write": "prettier -w \"**/*.{json,md,svg,yml,sol}\"",
+        "check": "yarn test & yarn lint & yarn prettier",
+        "prepublish": "tar -czf files.tgz .gitignore .yarn .yarnrc.yml"
+    },
+    "files": [
+        "src",
+        "test",
+        "script",
+        "package.json",
+        "foundry.toml",
+        "remappings.txt",
+        "README.md",
+        "files.tgz",
+        ".editorconfig",
+        ".env.example",
+        ".prettierignore",
+        ".prettierrc.json",
+        ".solhint.json"
+    ],
+    "packageManager": "yarn@4.1.0"
+}

packages/cli-template-contracts-foundry/remappings.txt

@@ -0,0 +1,4 @@
+@semaphore/contracts/=./node_modules/@semaphore-protocol/contracts/
+@zk-kit/lean-imt.sol/=./node_modules/@zk-kit/lean-imt.sol/
+forge-std/=./node_modules/forge-std/src/
+poseidon-solidity/=./node_modules/poseidon-solidity/

packages/cli-template-contracts-foundry/script/DeployFeedback.s.sol

@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.23;
+
+import {Feedback} from "../src/Feedback.sol";
+import {Semaphore} from "@semaphore/contracts/Semaphore.sol";
+import {SemaphoreVerifier} from "@semaphore/contracts/base/SemaphoreVerifier.sol";
+import {ISemaphoreVerifier} from "@semaphore/contracts/interfaces/ISemaphoreVerifier.sol";
+import {Script} from "forge-std/Script.sol";
+
+// Passing SALT parameter to use CREATE2 for deterministic contract address
+bytes32 constant SALT = bytes32(0);
+
+contract DeployFeedback is Script {
+    function run() external returns (address feedbackAddr, address semaphoreAddr, address semaphoreVerifierAddr) {
+        // Default to use the first test user private key of anvil node
+        uint256 deployerPrivateKey = vm.envOr(
+            "PRIVATE_KEY",
+            uint256(0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80)
+        );
+
+        vm.startBroadcast(deployerPrivateKey);
+
+        // Deploy SemaphoreVerifier
+        SemaphoreVerifier semaphoreVerifierContract = new SemaphoreVerifier{salt: SALT}();
+        semaphoreVerifierAddr = address(semaphoreVerifierContract);
+
+        // Deploy Semaphore
+        Semaphore semaphoreContract = new Semaphore{salt: SALT}(ISemaphoreVerifier(semaphoreVerifierAddr));
+        semaphoreAddr = address(semaphoreContract);
+
+        // Deploy Feedback
+        Feedback feedbackContract = new Feedback{salt: SALT}(semaphoreAddr);
+        feedbackAddr = address(feedbackContract);
+
+        vm.stopBroadcast();
+    }
+}

packages/cli-template-contracts-foundry/src/Feedback.sol

@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.23;
+
+import {ISemaphore} from "@semaphore/contracts/interfaces/ISemaphore.sol";
+
+contract Feedback {
+    ISemaphore public semaphore;
+
+    uint256 public groupId;
+
+    constructor(address semaphoreAddress) {
+        semaphore = ISemaphore(semaphoreAddress);
+
+        groupId = semaphore.createGroup();
+    }
+
+    function joinGroup(uint256 identityCommitment) external {
+        semaphore.addMember(groupId, identityCommitment);
+    }
+
+    function sendFeedback(
+        uint256 merkleTreeDepth,
+        uint256 merkleTreeRoot,
+        uint256 nullifier,
+        uint256 feedback,
+        uint256[8] calldata points
+    ) external {
+        ISemaphore.SemaphoreProof memory proof = ISemaphore.SemaphoreProof(
+            merkleTreeDepth,
+            merkleTreeRoot,
+            nullifier,
+            feedback,
+            groupId,
+            points
+        );
+
+        semaphore.validateProof(groupId, proof);
+    }
+}

packages/cli-template-contracts-foundry/test/Feedback.t.sol

@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.23;
+
+import {Test} from "forge-std/Test.sol";
+import {ISemaphore} from "@semaphore/contracts/interfaces/ISemaphore.sol";
+import {ISemaphoreGroups} from "@semaphore/contracts/interfaces/ISemaphoreGroups.sol";
+import {Feedback} from "../src/Feedback.sol";
+import {DeployFeedback} from "../script/DeployFeedback.s.sol";
+
+contract FeedbackTest is Test {
+    event MemberAdded(uint256 indexed groupId, uint256 index, uint256 identityCommitment, uint256 merkleTreeRoot);
+
+    Feedback internal feedbackContract;
+    ISemaphore internal semaphoreContract;
+    ISemaphoreGroups internal semaphoreGroups;
+    uint256 internal groupId;
+
+    function setUp() external {
+        DeployFeedback deployFeedback = new DeployFeedback();
+        (address feedbackAddress, address semaphoreAddress, ) = deployFeedback.run();
+        feedbackContract = Feedback(feedbackAddress);
+        semaphoreContract = ISemaphore(semaphoreAddress);
+        semaphoreGroups = ISemaphoreGroups(semaphoreAddress);
+        groupId = feedbackContract.groupId();
+    }
+
+    function testGroupCreatedInConstructor() public view {
+        uint256 groupCount = semaphoreContract.groupCounter();
+        assertEq(groupCount, 1);
+    }
+
+    function testJoinGroup() public {
+        // The commitment below is generated with private key of the first account in Anvil
+        uint256 identityCommitment = 15072455385723004728391568434269917452175057560864330595979104241296826134229;
+
+        // Test: expect an event emitted. Check for all event topics and data
+        vm.expectEmit(true, true, true, true);
+        emit MemberAdded(groupId, 0, identityCommitment, identityCommitment);
+
+        feedbackContract.joinGroup(identityCommitment);
+    }
+
+    function testSendFeedback() public {
+        uint256[] memory commitments = new uint256[](2);
+        commitments[0] = uint256(11005642493773047649202648265396872197147567800455247120861783398111750817516);
+        commitments[1] = uint256(14473821761500463903284857947161896352613497175238126022206384102438097355186);
+
+        for (uint256 i = 0; i < commitments.length; ++i) {
+            feedbackContract.joinGroup(commitments[i]);
+        }
+
+        uint256 merkleTreeDepth = 1;
+        uint256 merkleTreeRoot = semaphoreGroups.getMerkleTreeRoot(groupId);
+        uint256 feedback = uint256(bytes32("Hello World"));
+
+        // These values are computed by running through @semaphore-protocol/circuits
+        uint256 nullifier = 14622092170088252518938850323258916742048811914834592843410744760450844885096;
+        uint256[8] memory points = [
+            2004484873491928515306456072357737929124240734208600886081152392890959117520,
+            21291026142870585364296731900941597996672838511394659364623185352043543529323,
+            4657264777014371046112557309523098953851041383509685591373847255581509612788,
+            6904165961903336246592681066375875983213983935764940579845010085396463328555,
+            1952750241178995674697344628236393389729638396609772141225880353616301956443,
+            106937615136633409337870509099767689510837462832227699340906789167349502398,
+            13080722838047436988558418790480431472161933638137155324683844808531903905810,
+            2547578906197450986657523555784319153413167960139250957065929818900731634820
+        ];
+
+        vm.expectEmit(true, true, true, true);
+        emit ISemaphore.ProofValidated(groupId, merkleTreeDepth, merkleTreeRoot, nullifier, feedback, groupId, points);
+
+        feedbackContract.sendFeedback(merkleTreeDepth, merkleTreeRoot, nullifier, feedback, points);
+    }
+}

packages/cli-template-contracts-hardhat/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@semaphore-protocol/cli-template-contracts-hardhat",
-    "version": "4.0.0",
+    "version": "4.8.2",
     "description": "Semaphore Hardhat template.",
     "license": "Unlicense",
     "files": [
@@ -16,7 +16,8 @@
         ".prettierrc.json",
         "hardhat.config.ts",
         "tsconfig.json",
-        "README.md"
+        "README.md",
+        ".solhint.json"
     ],
     "publishConfig": {
         "access": "public"
@@ -41,9 +42,9 @@
         "@nomicfoundation/hardhat-network-helpers": "^1.0.0",
         "@nomicfoundation/hardhat-toolbox": "^4.0.0",
         "@nomicfoundation/hardhat-verify": "^2.0.0",
-        "@semaphore-protocol/core": "4.0.0",
-        "@semaphore-protocol/hardhat": "4.0.0",
-        "@semaphore-protocol/utils": "4.0.0",
+        "@semaphore-protocol/core": "4.8.2",
+        "@semaphore-protocol/hardhat": "4.8.2",
+        "@semaphore-protocol/utils": "4.8.2",
         "@typechain/ethers-v6": "^0.5.0",
         "@typechain/hardhat": "^9.0.0",
         "@types/chai": "^4.2.0",
@@ -59,7 +60,7 @@
         "eslint-config-airbnb-typescript": "^17.1.0",
         "eslint-config-prettier": "^9.1.0",
         "eslint-plugin-import": "^2.29.1",
-        "ethers": "^6.4.0",
+        "ethers": "^6.13.4",
         "hardhat": "^2.20.1",
         "hardhat-gas-reporter": "^1.0.8",
         "prettier": "^3.2.5",
@@ -71,7 +72,7 @@
         "typescript": "^5.3.3"
     },
     "dependencies": {
-        "@semaphore-protocol/contracts": "4.0.0"
+        "@semaphore-protocol/contracts": "4.8.2"
     },
     "packageManager": "yarn@4.1.0"
 }

packages/cli-template-monorepo-ethers/apps/contracts/package.json

@@ -20,9 +20,9 @@
         "@nomicfoundation/hardhat-network-helpers": "^1.0.0",
         "@nomicfoundation/hardhat-toolbox": "^4.0.0",
         "@nomicfoundation/hardhat-verify": "^2.0.0",
-        "@semaphore-protocol/core": "4.0.0",
-        "@semaphore-protocol/hardhat": "4.0.0",
-        "@semaphore-protocol/utils": "4.0.0",
+        "@semaphore-protocol/core": "4.8.2",
+        "@semaphore-protocol/hardhat": "4.8.2",
+        "@semaphore-protocol/utils": "4.8.2",
         "@typechain/ethers-v6": "^0.5.0",
         "@typechain/hardhat": "^9.0.0",
         "@types/chai": "^4.2.0",
@@ -38,7 +38,7 @@
         "eslint-config-airbnb-typescript": "^17.1.0",
         "eslint-config-prettier": "^9.1.0",
         "eslint-plugin-import": "^2.29.1",
-        "ethers": "^6.4.0",
+        "ethers": "^6.13.4",
         "hardhat": "^2.20.1",
         "hardhat-gas-reporter": "^1.0.8",
         "prettier": "^3.2.5",
@@ -50,7 +50,7 @@
         "typescript": "^5.3.3"
     },
     "dependencies": {
-        "@semaphore-protocol/contracts": "4.0.0"
+        "@semaphore-protocol/contracts": "4.8.2"
     },
     "packageManager": "yarn@4.1.0"
 }

packages/cli-template-monorepo-ethers/apps/web-app/.env.development

@@ -1,4 +1,4 @@
 NEXT_PUBLIC_DEFAULT_NETWORK=localhost
-NEXT_PUBLIC_FEEDBACK_CONTRACT_ADDRESS=0xCf7Ed3AccA5a467e9e704C703E8D87F634fB0Fc9
+NEXT_PUBLIC_FEEDBACK_CONTRACT_ADDRESS=0xcf7ed3acca5a467e9e704c703e8d87f634fb0fc9
 NEXT_PUBLIC_SEMAPHORE_CONTRACT_ADDRESS=0x9fE46736679d2D9a65F0992F2272dE9f3c7fa6e0
 NEXT_PUBLIC_GROUP_ID=0

packages/cli-template-monorepo-ethers/apps/web-app/.env.production

@@ -1,5 +1,8 @@
 NEXT_PUBLIC_DEFAULT_NETWORK=sepolia
+NEXT_PUBLIC_INFURA_API_KEY=abf67af1010b4b8d877e04244f1eac3d
 NEXT_PUBLIC_FEEDBACK_CONTRACT_ADDRESS=
 NEXT_PUBLIC_SEMAPHORE_CONTRACT_ADDRESS=0x1e0d7FF1610e480fC93BdEC510811ea2Ba6d7c2f
 NEXT_PUBLIC_OPENZEPPELIN_AUTOTASK_WEBHOOK=https://api.defender.openzeppelin.com/actions/20fce2ae-844b-4ec0-a6a2-90a3350a9d2c/runs/webhook/303216d1-fa7d-4fca-8c5b-7ba1ba544fc7/2T7i9xrkZA5j37hoaQLUuw
+NEXT_PUBLIC_GELATO_RELAYER_ENDPOINT=https://api.gelato.digital/relays/v2/sponsored-call
+NEXT_PUBLIC_GELATO_RELAYER_CHAIN_ID=11155111
 NEXT_PUBLIC_GROUP_ID=

packages/cli-template-monorepo-ethers/apps/web-app/.gitignore

@@ -1,5 +1,8 @@
 # See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
 
+# testing
+/coverage
+
 # next.js
 /.next/
 /out/
@@ -7,3 +10,18 @@
 # production
 /build
 
+# misc
+.DS_Store
+*.pem
+
+# typescript
+*.tsbuildinfo
+next-env.d.ts
+
+# Auto Generated PWA files
+public/sw.js
+public/workbox-*.js
+public/worker-*.js
+public/sw.js.map
+public/workbox-*.js.map
+public/worker-*.js.map

packages/cli-template-monorepo-ethers/apps/web-app/contract-artifacts/Feedback.json

@@ -9,11 +9,6 @@
                     "internalType": "address",
                     "name": "semaphoreAddress",
                     "type": "address"
-                },
-                {
-                    "internalType": "uint256",
-                    "name": "_groupId",
-                    "type": "uint256"
                 }
             ],
             "stateMutability": "nonpayable",
@@ -92,8 +87,8 @@
             "type": "function"
         }
     ],
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     "linkReferences": {},
     "deployedLinkReferences": {}
 }

packages/cli-template-monorepo-ethers/apps/web-app/next.config.mjs

@@ -14,7 +14,8 @@ const nextConfig = withPWA({
 })({
     env: {
         INFURA_API_KEY: process.env.INFURA_API_KEY,
-        ETHEREUM_PRIVATE_KEY: process.env.ETHEREUM_PRIVATE_KEY
+        ETHEREUM_PRIVATE_KEY: process.env.ETHEREUM_PRIVATE_KEY,
+        GELATO_RELAYER_API_KEY: process.env.GELATO_RELAYER_API_KEY
     }
 })