Source Intelligence
Follow Discord

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

Bundle-wide reformatting with no behaviour change

Under the hood
Useful1 Signal0
Build Metadata

Assorted internal code was reformatted and renamed with nothing you can perceive changing.

What

Several unrelated areas were reflowed or had their module-init closures renamed, with no semantic difference found in any of them.

Details
  • Method-chain reflows in JWT verification, PEM fingerprinting via createHash("sha1") and createHash("sha256"), MCP server-config mapping, the SDK set_model control request, QR-code rendering and several string-splitting sites.
  • Renamed module-init closures for the test and typecheck command regexes and for the git worktree path constants /worktrees/ and config.worktree.lock.
Evidence

failed to validate JWT signature

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 →