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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 v2.1.239

Device pairing reports hitting a session limit distinctly

You'll notice
Useful2 Signal3
Device Pairing

Device pairing now names a per-account session cap instead of failing generically.

What

Pairing a device can now fail with device_session_limit, a named error for hitting a per-account device or session cap, rather than a generic failure.

Details
  • Added to both the device-registration error list and the check for which device errors are recognised and worth naming to the user, alongside duplicate_device_id and device_name_in_use.
Evidence

device_session_limit

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 v2.1.239 →