Upgrade Notes

What changed in AI this week, for people who build with AI tools. Model releases, API breaking changes, coding-agent updates (Claude Code, Cursor, Codex, Copilot), open-weight drops, and policy that actually affects builders. Every item links to its source. Out every Thursday.

Get it every week:

• RSS: feed.xml
• Email via GitHub: on the repo, click Watch → Custom → Releases. Each issue is published as a release, so GitHub emails it to you.

Posts

• Oct 22, 2026

  Upgrade Notes #001: what changed in AI this week (Oct 15–22, 2026)

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