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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 v2.1.251 Home All releases ←olderv2.1.250
Claude Code v2.1.251

Snapshot commits can record extra parents

Under the hood
Useful2 Signal3
Checkpoints

Snapshots can record extra parent commits, so merge-shaped histories can be captured.

What

The internal git snapshot routine can now be given additional parent commits to record, beyond the head and basis parents it already used. Each extra id is validated as a real object id and deduplicated against the existing parents, which is what lets merge-shaped histories be snapshotted at all.

Evidence

alsoParents

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 v2.1.251 →