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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 v2.1.238 Home All releases ←olderv2.1.237 v2.1.239newer→
Claude Code v2.1.238

Module-level mutable state moved into per-process holders

Under the hood
Useful1 Signal1
Session State

Various long-lived globals moved onto per-process state objects; nothing behaves differently.

What

Several long-lived variables, including the feedback-notice state, MCP auth caches, dropped-tool sequence maps, live shell command sets and the plugin marketplace memo, now live on lazily built state objects instead of loose module variables. No behaviour changes.

Evidence

Ip.feedbackNotice

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 v2.1.238 →