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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 v2.1.221 Home All releases ←olderv2.1.220 v2.1.222newer→
Claude Code v2.1.221

Version bump to 2.1.221

Under the hood
Useful1 Signal0
Elsewhere

This is build 2.1.221.

What

Build metadata across the bundle moved from 2.1.220 to 2.1.221.

Details
  • New build timestamp and git SHA accompany the version string.
Evidence

"2026-08-03T03:19:26Z"

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

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.221 →