Source Intelligence

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 v2.1.236 Home All releases olderv2.1.235 v2.1.237newer
Claude Code v2.1.236

More singletons moved behind per-session lookups

Under the hood
Useful1 Signal2
Session State

More shared caches, including MCP connections and the git repo cache, became per-session.

What

The same conversion applied to another group of caches: the MCP server connection cache, the internal message bus, the git repository cache, the announcement store, the computer-use state, the plugin catalogue cache and the profiler. Two separate MCP caches collapsed into a single connections map.

Evidence

[cu-esc] registered

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 v2.1.236 →