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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.251 ·

File write diffs can carry a notice line

A file write diff can now carry an explanatory notice line above it.

You'll notice Improvements
JSON All of v2.1.251
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
UIArea: what it touches
ImprovementsKind: in v2.1.251,
ImprovementsSection of the release
What

A file write diff can now show a dimmed notice line above the diff itself, for writes that need explaining. Diffs without a notice render exactly as before.

Evidence

L.notice === void 0

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

See this entry in the whole of v2.1.251 →

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