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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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Claude Code v2.1.78

Improved Voice Mode on Linux/WSL

Voice mode now probes the arecord audio device before attempting to record on Linux, providing clearer error messages when audio hardware is unavailable. On WSL specifically, the error message now explains WSL2 with WSLg (Windows 11) requirements:

> Voice mode could not access an audio device in WSL. WSL2 with WSLg (Windows 11) provides audio via PulseAudio — if you are on Windows 10 or WSL1, run Claude Code in native Windows instead.

Evidence

Audio probe function (search for "arecord probe failed") and improved WSL message (search for "WSLg")

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

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.78 →