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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 v2.1.72

Nova 3 Voice Gate [In Development]

What

A feature flag tengu_cobalt_frost gates a "Nova 3" voice stream capability.

Status

Feature-flagged, not yet broadly enabled.

Details
  • Log message: "Nova 3 gate enabled (tengu_cobalt_frost)"
  • Likely an upgrade to the voice transcription model
Evidence

Feature flag (search for "tengu_cobalt_frost")

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

See this entry in the whole of v2.1.72 →