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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 ·

Clearer error when a working directory path is invalid

Adding a working directory now says whether the path is unresolvable, missing or malformed.

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
1Signal: worth watching, 1 to 5
PermissionsArea: what it touches
New FeaturesKind: in v2.1.251,
New FeaturesSection of the release
What

Adding a working directory now separates a path that cannot be resolved at all from one that simply does not exist, and calls out paths containing a null character with their own message.

Details
  • New invalid-path outcome alongside the existing not-found outcome.
  • Null-byte paths are reported as unusable as a working directory rather than as missing.
Evidence

contains a null character, so it can't be used as a working directory

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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