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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 v2.1.219 ·

Fast-mode availability records how it was derived

When fast mode looks unavailable, the cache now records whether that was a guess or confirmed.

Under the hood Internal Changes
JSON All of v2.1.219
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
ModelsArea: what it touches
Internal ChangesKind: in v2.1.219,
Internal ChangesSection of the release
What

The cached fast-mode availability record notes when a disabled state was guessed locally rather than confirmed by the server.

Details
  • the disabled branch now carries source: "guess" alongside the existing reason: "unknown"
Evidence

{ status: "disabled", reason: "unknown", source: "guess" }

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

See this entry in the whole of v2.1.219 →

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