Upgrade rmcp to 3.0.0-beta.3 (#35720)

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## What changed

- Update the `rmcp` model and transport integrations for `3.0.0-beta.3`.
- Preserve legacy `elicitation/create` form requests, schema defaults, metadata, and wire-format compatibility while adopting the new elicitation types.
- Harden OAuth discovery by using GET-first discovery without starting an MCP session, preventing cross-origin header redirects, validating authorization-server and callback issuers, and retaining compatibility with metadata that omits an issuer.
- Keep stored OAuth credentials readable and avoid requiring reauthorization after transient refresh failures.

## Testing

- Add coverage for legacy elicitation round trips, OAuth discovery variants, callback issuer validation, credential migration, and refresh failures.

GitOrigin-RevId: 756197d26f3fd347c28c400228f6b3d06ed493b7

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This commit is contained in:

thomas

2026-07-28 05:12:24 +00:00

committed by copyberry

parent 899539c03a

commit 61de0d8fe8

48 changed files with 1391 additions and 639 deletions

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