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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 v2.1.246 ·

Storage handle threaded into client creation and MCP calls

Credential access keeps migrating onto one shared handle across client and MCP paths.

Under the hood Internal Changes
JSON All of v2.1.246
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
InternalsArea: what it touches
Internal ChangesKind: in v2.1.246,
Internal ChangesSection of the release
What

The API client factory now takes a storage handle and passes it to the pre-request auth refresh and the custom fetch builder, and the headless MCP call path passes it where it used to pass an app-state setter. Continued migration of credential access onto one handle.

Evidence

callMCPToolWithUrlElicitationRetry

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

See this entry in the whole of v2.1.246 →

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