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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 ·

File reads reject device paths before touching the disk

File reads reject Windows device paths before touching disk, including the Chrome extension's uploads.

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
2Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
ImprovementsKind: in v2.1.234,
ImprovementsSection of the release
What

The file-read helper and the Chrome extension's file upload now test both the raw and the normalized path for Windows NT object-namespace form and throw before any filesystem call, each with its own diagnostic string. The check is unconditional.

Evidence

read_file: NT-namespace path rejected before filesystem access

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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