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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.

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Claude Code v2.1.227 10 Aug 2026

Diagnostics tracking became an object, and plugin LSP configs can come from storage

Under the hood

Useful2 Signal2

Elsewhere

Diagnostics tracking is now per-instance and plugin language-server configs can come from storage.

What

Pending and delivered diagnostics, with their deduplication, per-file and total caps and purge on file change, are now per-instance rather than shared module state. Loading a plugin's language-server config can now go through the storage backend, with separate errors for a path containing a symlink, a missing file, and a path storage cannot address.

Evidence

LSP config path contains a symbolic link that plugin storage does not follow

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

See this entry in the whole of v2.1.227 →