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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

All of v2.1.61 Home All releases olderv2.1.59 v2.1.62newer
Claude Code v2.1.61

Smarter client data cache updates

What

The client data cache (used for fetching configuration from the API) now performs a deep equality check before updating state, avoiding unnecessary state propagation when the fetched data hasn't changed.

Details
  • Previously, every fetch from the OAuth client data endpoint would overwrite the cache with a new object, even if the data was identical
  • Now uses isDeepStrictEqual to compare fresh data against cached data and only triggers a state update when something actually changed
  • This reduces unnecessary re-renders and state propagation in the UI
Evidence

Client data fetch function sQK() (search for "clientDataCache") — added deep equality check via $Q() before cache write at line ~69394

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.61 →