chore: add changeset for commitlint v20 migration

.changeset/drop-node-18-20.md

@@ -2,5 +2,5 @@
 '@benhigham/commitlint-config': major
 ---
 
-- Drop support for Node.js 18 and 20 — minimum version is now 22.15.0
-- Node 18 reached EOL April 2025; Node 20 EOLs October 2026
+- Drop support for Node.js 18 and 20 — minimum version is now 22
+- Node 18 reached EOL April 2025; Node 20 EOLs April 2026

.changeset/remove-atom-parser-preset.md

@@ -9,7 +9,7 @@ parser to match Atom-style headers (`:emoji: description`), not
 conventional commits. This was a latent bug that had no visible effect
 in commitlint v19 due to fallback behaviour in the old parser.
 
-In commitlint v20.4.0, `conventional-commits-parser` was upgraded from
+In commitlint v20, `conventional-commits-parser` was upgraded from
 v5 to v6 (which uses a new `CommitParser` class with no fallback). The
 atom preset's header pattern never matches conventional commit messages,
 causing `type` and `subject` to always be empty — breaking all linting.

.changeset/v20-migration.md

@@ -0,0 +1,7 @@
+---
+'@benhigham/commitlint-config': major
+---
+
+- Bump `@commitlint/config-conventional` and `@commitlint/format` from v19 to v20
+- Bump `@commitlint/cli` peer dependency from `>=19.0.0` to `>=20.0.0`
+- Update all dependencies to latest versions

README.md

@@ -10,7 +10,7 @@ My personal [commitlint](https://commitlint.js.org) configuration based on the [
 
 - Based on `@commitlint/config-conventional`
 - Provides consistent, structured commit messages
-- Integrates with Atom-style changelogs
+- Uses `@commitlint/format` for formatted output
 - Pre-configured formatting rules
 
 ## Installation
@@ -91,8 +91,8 @@ This configuration enforces the [Conventional Commits](https://www.conventionalc
 
 ## Requirements
 
-- Node.js 22.15.x or higher
-- [commitlint](https://commitlint.js.org) 19.x
+- Node.js 22 or higher
+- [commitlint](https://commitlint.js.org) 20.x or higher
 
 ## License
 

package.json

@@ -21,9 +21,9 @@
   "exports": "./src/index.js",
   "sideEffects": false,
   "engines": {
-    "node": ">=22.15.0"
+    "node": ">=22"
   },
-  "packageManager": "pnpm@10.15.0",
+  "packageManager": "pnpm@10.32.1",
   "scripts": {
     "format": "prettier --write .",
     "format:check": "prettier --check .",