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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 v2.1.229 ·

MCP OAuth no longer re-saves a stale client secret or redirect URI

MCP sign-in no longer saves a stale client secret or redirect address back to disk.

You'll notice No documentation found Bug Fixes
JSON All of v2.1.229
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
MCPArea: what it touches
Bug FixesKind: in v2.1.229,
Bug FixesSection of the release
What

Saving OAuth client details for an MCP server now drops the client secret when the issuer is known, the client id matches the one already stored with no secret against it, and it matches the configured oauth.clientId. A previously stored redirect URI is only reused when this client is not doing the redirect itself, instead of falling back to the current one.

Details
  • Prevents a secret from a different registration being written back over a secretless entry.
Evidence

mcpOAuth

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

Read from
Names in the bundleoauth.clientId

See this entry in the whole of v2.1.229 →

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