You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
4Signal: worth watching, 1 to 5
Claude API SkillArea: what it touches
ImprovementsKind: in v2.1.307,
What probably matters to youSection of the release
What
A skill is a bundle of instructions and reference files Claude can load when they are relevant. The claude-api skill that ships with Claude Code now includes shared/api-version-migration.md.
Why
Claude can now read this document while it uses the claude-api skill.