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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 v2.1.242

Malformed diagnostics in a replayed attachment are dropped instead of trusted

You'll notice
Useful2 Signal2
Sessions

Resumed sessions discard malformed editor diagnostics instead of passing them along.

What

When a resumed session replays editor diagnostics, a payload that is not an array, or entries missing a string message or a numeric range start, are now discarded rather than passed through.

Details
  • The counts are logged, in the form "Dropped N malformed file(s) and M malformed diagnostic(s)".
Evidence

Dropped a

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 v2.1.242 →