Update dependency mcp to v1.26.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
mcp	==1.23.3 → ==1.26.0

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Release Notes

modelcontextprotocol/python-sdk (mcp)

v1.26.0

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What's Changed

• ci: add all-green job to pull-request-checks workflow by @​maxisbey in #​1929
• Backport: Support for Resource and ResourceTemplate metadata by @​maxisbey in #​1928
• [v1.x] fix: return HTTP 404 for unknown session IDs instead of 400 by @​LucaButBoring in #​1945

Full Changelog: modelcontextprotocol/python-sdk@v1.25.0...v1.26.0

v1.25.0

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Branching Update

Starting with this release, the repository has adopted a new branching strategy for v2 development:

• main — v2 development (breaking changes)
• v1.x — v1 maintenance (security and critical bug fixes only, with very rare feature additions ported from main)

Users who need to stay on v1.x should pin to mcp>=1.25,<2.

The current plan is to work through v2 and have it released some time in Q1. This also relies on the next upcoming spec release which will heavily change how the transport layer works, which in turn will guide a lot of how we architect v2.

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What's Changed

• Fix for Url Elicitation issue 1768 by @​gopitk in #​1780
• ci: add v1.x branch to main-checks workflow by @​maxisbey in #​1802

New Contributors

• @​gopitk made their first contribution in #​1780

Full Changelog: modelcontextprotocol/python-sdk@v1.24.0...v1.25.0

v1.24.0

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What's Changed

• feat: client-side support for SEP-1577 sampling with tools by @​jlowin in #​1722
• Fix JSON-RPC error response ID matching by @​crondinini-ant in #​1720
• Add streamable_http_client which accepts httpx.AsyncClient instead of httpx_client_factory by @​Kludex in #​1177
• fix: use correct python command name in test_stdio.py by @​WOnder93 in #​1782

New Contributors

• @​WOnder93 made their first contribution in #​1782

Full Changelog: modelcontextprotocol/python-sdk@v1.23.3...v1.24.0

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