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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 ·

Artifact asset uploads use the streaming path

Artifact asset uploads now stream with stall detection instead of a fixed timeout.

You'll notice New Features
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
ArtifactsArea: what it touches
New FeaturesKind: in v2.1.251,
New FeaturesSection of the release
What

Uploading an artifact asset now goes through the streaming upload with stall detection, replacing the fixed request timeout that previously applied to uploads.

Details
  • Applies whenever the operation is an upload; other artifact operations keep the old timeout.
  • A completion callback flags the upload as stalled when it never progressed.
Evidence

streamUpload

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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