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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 ·

Comments can show they were sent to Claude by someone else

Comments record who sent them to Claude, and Claude leaves someone else's thread alone.

You'll notice New Features
JSON All of v2.1.251
You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
ArtifactsArea: what it touches
New FeaturesKind: in v2.1.251,
New FeaturesSection of the release
What

Comments on an artifact now record who sent them to Claude. When a comment came from a different person's session, the attribution line says it was sent to Claude by someone else, and Claude is told to leave that thread to them unless you explicitly ask it to take over.

Details
  • Backed by a new sentByViewer field on comment records.
  • Affects both the rendered comment heading and the instructions Claude reads about how to treat the thread.
Evidence

sent to Claude by someone else

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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