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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 v2.1.220 Home All releases ←olderv2.1.219 v2.1.221newer→
Claude Code v2.1.220

Version bumped to 2.1.220

Under the hood
Useful2 Signal0
Build Metadata

The version shown in /status, bug reports and update checks is now 2.1.220.

/status
What

The build-time constant block embedded throughout the bundle carries a new version, timestamp and commit hash, rethreaded through roughly 55 call sites.

Details
  • VERSION 2.1.219 -> 2.1.220, with a new BUILD_TIME of 2026-07-24T22:17:45Z and a new GIT_SHA.
  • Surfaces in the /status version line, the bug-report template's Environment Info, the claude-code/<version> user agent, update-check output (Current version: ), telemetry and analytics payloads, and the npm install/view commands targeting @anthropic-ai/claude-code.
  • The BUILD_REF_NAME suffix helper still returns the empty string, and the JOSE compactDecrypt calls in the OIDC JWE path were re-minified with no behaviour change.
Evidence

VERSION: "2.1.220", BUILD_TIME: "2026-07-24T22:17:45Z"

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 v2.1.220 →