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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 v2.1.234 ·

Clearer and stricter checks on published artifact file paths

Invalid file paths in a published artifact now name the actual problem instead of a generic error.

You'll notice Improvements
JSON All of v2.1.234
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
ArtifactsArea: what it touches
ImprovementsKind: in v2.1.234,
ImprovementsSection of the release
What

The error for an invalid file path inside a published artifact now names the actual problem: an empty segment, a segment made only of dots and spaces, a path separator, a NUL byte, or a reserved name shape. Absolute paths that normalize into a reserved shape are rejected outright rather than accepted after normalization.

Evidence

expected a non-empty array of segments, none empty or made only of dots and spaces, with no path separator, NUL or set-aside shape

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

See this entry in the whole of v2.1.234 →

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