docs: Claude Code v2.1.309 - Message threads API beta in SDKs 2.2.0; self-hosted runner now reserves fds 4 and 5 - #1404

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/create-github-app-token@v2. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

The process '/usr/bin/git' failed with exit code 128

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