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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 v2.1.277 ·

Auto-mode Sonnet-5 classifier probe retained, log wording unchanged but refactored

Internal refactor of the auto-mode Sonnet 5 classifier fallback, no behavior change

Under the hood Internal Changes
JSON All of v2.1.277
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
Internal ChangesKind: in v2.1.277,
Internal ChangesSection of the release
What

The internal logic that lets auto mode fall back to using Sonnet 5 as a classifier (and demotes on error) was refactored internally. The log wording stays the same.

Why

This is a code cleanup with no effect on what you see or how auto mode behaves.

See this entry in the whole of v2.1.277 →

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