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| og:image:alt | Implements SEP-2577 for the 2026-07-28 spec (tracked in #2805).
Summary
The deprecation is advisory only - no wire-level changes, capability negotiation is unchanged, and every method keeps working... |
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| Deprecate roots, sampling, and logging methods per SEP-2577 | https://github.com/modelcontextprotocol/python-sdk/pull/2926/commits/86bd4f34088154056e2b240fb02368a47e4f111f |
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| Emit deprecation warnings as a visible MCPDeprecationWarning | https://github.com/modelcontextprotocol/python-sdk/pull/2926/commits/a5c1522cac46a7e3a1d1c753e751a8395aa8768c |
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View reviewed changes
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| Deprecate Connection.log for consistency with the logging capability | https://github.com/modelcontextprotocol/python-sdk/pull/2926/commits/7ee2e0d362b650092ecc6b8f425e54e2f94cfbdd |
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| List the lowlevel Context.log in the SEP-2577 deprecation note | https://github.com/modelcontextprotocol/python-sdk/pull/2926/commits/24cb7b086e282b13f7cf07e2da547aae9d189f45 |
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| Use capability-level deprecation messages for roots and sampling | https://github.com/modelcontextprotocol/python-sdk/pull/2926/commits/b3041311d6c810bbf51cb0c5a4e76a49c3628576 |
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| Absorb | https://github.com/modelcontextprotocol/python-sdk/commit/732ebc46bea1f6f949717483b39e53afa24ea9e8 |
| #2926 | https://github.com/modelcontextprotocol/python-sdk/pull/2926 |
| (SEP-2577 deprecations); fix client 4xx id-correlation | https://github.com/modelcontextprotocol/python-sdk/commit/732ebc46bea1f6f949717483b39e53afa24ea9e8 |
| 732ebc4 | https://github.com/modelcontextprotocol/python-sdk/commit/732ebc46bea1f6f949717483b39e53afa24ea9e8 |
| #2926 | https://github.com/modelcontextprotocol/python-sdk/pull/2926 |
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| (SEP-2577 deprecations); fix client 4xx id-correlation | https://github.com/modelcontextprotocol/python-sdk/commit/764650e62bdfd0cdda4b1282e24f1bf1fe7c266d |
| 764650e | https://github.com/modelcontextprotocol/python-sdk/commit/764650e62bdfd0cdda4b1282e24f1bf1fe7c266d |
| #2926 | https://github.com/modelcontextprotocol/python-sdk/pull/2926 |
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Jun 26, 2026
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Spec corrections & deprecation markers
#2904
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