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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 v2.1.257 ·

Model catalog telemetry now records catalog source and does session-masking comparisons

Model catalog comparison telemetry now records which catalog the models came from and accounts for session-masked ids.

Under the hood 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
Model CatalogArea: what it touches
Internal ChangesKind: in v2.1.257,
Internal ChangesSection of the release

The tengu_model_catalog_compare telemetry event now includes a catalog_source field, and the shadow-compare logic that checks served catalogs against local ones now factors in session-masked model IDs (sessionMaskedIds) when comparing. The catalog source is also logged in the debug line.

See this entry in the whole of v2.1.257 →

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