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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 v2.1.248

Device attestation statuses collapse to three values

Under the hood
Useful2 Signal3
Device Trust

Device attestation results collapse to verified, unverified or unknown, with values sanitised.

What

Raw attestation strings are now mapped to just "verified", "unverified" or "unknown", with the internal prefix stripped and the gate-verified, keyless-device and service-vouched variants all folded into "verified", absent and invalid into "unverified". A companion sanitiser truncates values to 64 characters and replaces non-printable bytes with "?".

Evidence

DEVICE_ATTESTATION_STATUS_

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 v2.1.248 →