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Sweep 06 Nov 2026 · 01:32Z Build v2.1.319 537 read Stable v2.1.311 Latest v2.1.318 Next v2.1.319 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.261 ·

Auto-mode classifier fallback now records a fallbackCause

Auto-mode fallback telemetry now records why a fallback model was used.

Under the hood Internal Changes
JSON All of v2.1.261
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
Auto ModeArea: what it touches
Internal ChangesKind: in v2.1.261,
Internal ChangesSection of the release

The auto-mode permission classifier telemetry event tengu_auto_mode_outcome now includes a fallbackCause field distinguishing why a fallback model was used, for example probe demotion, refusal, or capacity issues.

See this entry in the whole of v2.1.261 →

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