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Sweep 10 Nov 2026 · 02:18Z Build v2.1.322 539 read Stable v2.1.311 Latest v2.1.322 Next v2.1.322 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.257 ·

New telemetry for unrecognized/unserved model spellings at startup

Startup now reports when an org's default model name is unrecognized or a requested family spelling went unserved.

Under the hood No documentation found Internal Changes
JSON All of v2.1.257
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
ModelsArea: what it touches
Internal ChangesKind: in v2.1.257,
Internal ChangesSection of the release

Startup model resolution now tracks two new conditions: whether the org's default model name is unrecognized, and whether a "family spelling" requested by the user went unserved (family_spelling_unserved). Both are now reported as telemetry outcomes.

Read from
Names in the bundlefamily_spelling_unserved

See this entry in the whole of v2.1.257 →

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