From 3f77af4f98bb3c8c2b3bab1b2b423ef90d3386c1 Mon Sep 17 00:00:00 2001
From: Georgios Konstantopoulos <me@gakonst.com>
Date: Tue, 3 Feb 2026 04:19:49 -0800
Subject: [PATCH] feat: add AI-assisted changelog generation (#21743)

Co-authored-by: Amp <amp@ampcode.com>
Co-authored-by: Emma Jamieson-Hoare <emmajam@users.noreply.github.com>
Co-authored-by: Emma Jamieson-Hoare <ejamieson19@gmail.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
---
 .changelog/config.toml          | 20 ++++++++++++++++++++
 .changelog/shy-tigers-dry.md    |  6 ++++++
 .github/workflows/changelog.yml | 22 ++++++++++++++++++++++
 3 files changed, 48 insertions(+)
 create mode 100644 .changelog/config.toml
 create mode 100644 .changelog/shy-tigers-dry.md
 create mode 100644 .github/workflows/changelog.yml

diff --git a/.changelog/config.toml b/.changelog/config.toml
new file mode 100644
index 0000000000..94209dc10b
--- /dev/null
+++ b/.changelog/config.toml
@@ -0,0 +1,20 @@
+# Changelogs configuration for reth
+# https://github.com/wevm/changelogs
+
+# How to bump packages that depend on changed packages
+dependent_bump = "patch"
+
+[changelog]
+# Generate per-crate changelogs (vs single root changelog)
+format = "per-crate"
+
+# Fixed groups: all always share the same version
+# reth binaries share version
+[[fixed]]
+members = ["reth", "op-reth"]
+
+# Packages to ignore (internal/test-only crates)
+ignore = [
+    "reth-testing-utils",
+    "reth-bench",
+]
diff --git a/.changelog/shy-tigers-dry.md b/.changelog/shy-tigers-dry.md
new file mode 100644
index 0000000000..7900dab573
--- /dev/null
+++ b/.changelog/shy-tigers-dry.md
@@ -0,0 +1,6 @@
+---
+reth: patch
+op-reth: patch
+---
+
+Added automated changelog generation infrastructure using wevm/changelogs-rs with Claude Code integration. Configured per-crate changelog format with fixed version groups for reth binaries and exclusions for internal test utilities.
diff --git a/.github/workflows/changelog.yml b/.github/workflows/changelog.yml
new file mode 100644
index 0000000000..2e8617a8de
--- /dev/null
+++ b/.github/workflows/changelog.yml
@@ -0,0 +1,22 @@
+name: Changelog
+
+on:
+  pull_request:
+    types: [opened, synchronize]
+
+jobs:
+  changelog:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          ref: ${{ github.head_ref }}
+      - run: npm install -g @anthropic-ai/claude-code
+      - uses: wevm/changelogs-rs/gen@master
+        with:
+          ai: 'claude -p'
+        env:
+          ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}