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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

Transcript re-stamp on exit tries the storage layer first

Under the hood
Useful1 Signal2
Sessions

On exit, the final transcript update goes through the storage layer first, falling back to a direct write.

What

On shutdown, the final transcript update is attempted asynchronously through the storage layer under a timeout, and falls back to the old synchronous write when that lapses or the layer is not in use.

Details
  • The async path only runs when the newer storage backend is pinned on; otherwise the synchronous re-stamp is used directly.
  • Timeouts are logged rather than silently swallowed.
  • Exit lines belonging to another session are tracked so they are not appended twice.
  • A new transcript record type, artifact-autoreact-ledger, is registered as always persisted with last-write-wins.
Evidence

Exit re-stamp through the storage backend did not finish within

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

See this entry in the whole of v2.1.238 →