v1.10.1

What's Changed

• Remove setting global logging config by @njbrake in #1048

New Contributors

• @njbrake made their first contribution in #1048

Full Changelog: v1.10.0...v1.10.1

v1.10.0

🚀 Implementation for Spec revision 2025-06-18

• feat: implement MCP-Protocol-Version header requirement for HTTP transport by @felixweinberger in #898
• Rename ResourceReference to ResourceTemplateReference by @ihrpr in #947
• feat: add _meta to more objects by @felixweinberger in #963
• Include context into completions by @ihrpr in #966
• Add support for Elicitation by @ihrpr in #625
• Update _meta usage guidance in types by @ihrpr in #971
• Add title to tools, resources, prompts by @felixweinberger in #972
• Add resource Link by @ihrpr in #974
• MCP server separation into Authorization Server (AS) and Resource Server (RS) roles per spec PR #338 by @ihrpr in #982
• RFC 8707 Resource Indicators Implementation by @ihrpr in #991
• Fix /.well-known/oauth-authorization-server dropping path by @ihrpr in #1014
• Make "resource" optional on earlier protocols by @dr3s in #1017
• Add schema validation to lowlevel server by @bhosmer-ant in #1005
• feat: Add structured output support for tool functions by @bhosmer-ant in #993
• Update latest protocol version to 2025-06-18 by @ihrpr in #1036

Other changes

• set timeout for sse in httpx_client_factory by @ihrpr in #943
• clean-up: removed unused ci file by @DarkDk123 in #950
• ci: add timeout on the test job by @Kludex in #955
• Fix uncaught exception in MCP server by @ddworken in #967
• Allow longer duration in test_188_concurrency by @msabramo in #969
• Add support for DNS rebinding protections by @ddworken in #861
• Fix Windows subprocess NotImplementedError (STDIO clients) by @theailanguage in #596
• Remove github from auth examples by @ihrpr in #1011
• refactor: rename DummyProcess to FallbackProcess in Windows stdio by @felixweinberger in #1015
• ci: add --frozen flag to all uv commands in workflows by @dsp-ant in #970
• unpin jsonschema version by @ihrpr in #1037

New Contributors 🙏

• @DarkDk123 made their first contribution in #950
• @msabramo made their first contribution in #969
• @theailanguage made their first contribution in #596

Full Changelog: v1.9.4...v1.10.0

v1.9.4

What's Changed

• Support Cursor OAuth client registration by @sam-tombury in #895
• feat: support audio content by @LucaButBoring in #725
• Use total_seconds instead of seconds on timeout by @Kludex in #896
• normalize string ID to int in server messages for compatibility by @wangxm345566462 in #851
• relax validation by @dr3s in #879
• Fix uncaught exception in MCP server by @ddworken in #822
• Use FileUrl on the resources/list call in the simple-resource example by @nandsha in #907
• Create issue templates by @Kludex in #935
• chore: create union for working with message content by @LucaButBoring in #939
• Allow to pass timeout as float by @Kludex in #941

New Contributors

• @vincent-pli made their first contribution in #899
• @sam-tombury made their first contribution in #895
• @LucaButBoring made their first contribution in #725
• @wangxm345566462 made their first contribution in #851
• @dr3s made their first contribution in #879
• @ddworken made their first contribution in #822
• @nandsha made their first contribution in #907

Full Changelog: v1.9.3...v1.9.4

v1.9.3

What's Changed

• improve server logging by @samuelcolvin in #867

Full Changelog: v1.9.2...v1.9.3

v1.9.2

What's Changed

• Fix ClientSessionGroup cleanup logic by @mkeid in #787
• Chatbot example: clean up servers in correct order by @clareliguori in #353
• llamallama-3.2-90b-vision-preview is deprecated by @Arash-IND in #523
• Support custom httpx client creation by @nickcoai in #752
• Python lint: Ruff rule PLW1510 -- subprocess-run-without-check by @cclauss in #794
• add support for parallel run by @lk-naath in #739
• Fix async callable object tools by @stephanlensky in #568
• [DOC] Fix example usage of get_context (plus a little more) by @hesreallyhim in #801
• Pin uv version by @Kludex in #806
• Fix building auth metadata paths by @Rodriguespn in #779
• Fix auth tests and ruff format by @ihrpr in #818
• send errors to pending requests if server closes by @mroch in #333
• RFC: Lower log levels used for connections by @nickcoai in #821
• Support for http request injection propagation to tools by @ihrpr in #816
• Prevent stdio connection hang for missing server path. by @TimChild in #401
• Fix and update OAuthAuthorizationServerProvider snippet in README.md by @alvarobartt in #830
• Client sampling and roots capabilities set to None if not implemented by @lorenzocesconetto in #802
• Support for http request injection propagation in StreamableHttp by @ihrpr in #833

New Contributors

• @clareliguori made their first contribution in #353
• @Arash-IND made their first contribution in #523
• @nickcoai made their first contribution in #752
• @lk-naath made their first contribution in #739
• @stephanlensky made their first contribution in #568
• @hesreallyhim made their first contribution in #801
• @Rodriguespn made their first contribution in #779
• @mroch made their first contribution in #333
• @TimChild made their first contribution in #401
• @alvarobartt made their first contribution in #830
• @lorenzocesconetto made their first contribution in #802

Full Changelog: v1.9.1...v1.9.2

v1.9.1

What's Changed

• Add OAuth authentication client for HTTPX by @ihrpr in #751
• fastmcp: allow passing Tool directly to FastMCP constructor by @vbarda in #699
• add auth client sse by @ihrpr in #760
• Change default binding from 0.0.0.0 to 127.0.0.1 to align with security recommendations by @ciccolo-anthropic in #738
• fix: Pass cursor parameter to server by @nbarbettini in #745

New Contributors

• @vbarda made their first contribution in #699
• @ciccolo-anthropic made their first contribution in #738

Full Changelog: v1.9.0...v1.9.1

v1.9.0

Protocol Version Update

Now the latest protocol version for Python SDK is 2025-03-26

What's Changed

• Fix typo in authentication section of README by @mopg in #676
• fix: 204 is an acceptable response to DELETEing the session by @nbarbettini in #697
• Minor tweaks to README for Streamable HTTP by @evalstate in #690
• Properly infer prefix for SSE messages by @jlowin in #659
• Simple Auth Example to use shttp in addition to sse by @ihrpr in #695
• Create ClientSessionGroup for managing multiple session connections. by @mkeid in #639
• fix typo: server has get_context attribute instead of request_context. by @shimizukawa in #446
• docs: clarify LLM API configuration in mcp_simple_chatbot README by @ddltn in #487
• fix: Add checks and better error messages on server object for mcp run by @john0312 in #297
• Fix hanging on streams when stdio_client exiting by @LionNatsu in #559
• feat: add message to ProgressNotification by @aksheyd in #435
• Update CI configuration to support multiple OS environments by @DanielAvdar in #708
• feat: add cursor pagination support to all client list methods by @jerome3o-anthropic in #718
• Add example for stateless server with JSON response by @5enxia in #704
• Include server examples folder in pyright check by @ihrpr in #667
• Set 2025-03-26 as the latest protocol version by @ihrpr in #719
• Fix example for multiple stateless servers by @ihrpr in #720
• fix: Update @mcp.resource to use function documentation as default descrip… by @jingyugao in #489
• Add progress notification callback for client by @ihrpr in #721
• Servers to accept older versions of client by @ihrpr in #722

New Contributors

• @mopg made their first contribution in #676
• @nbarbettini made their first contribution in #697
• @jlowin made their first contribution in #659
• @mkeid made their first contribution in #639
• @shimizukawa made their first contribution in #446
• @ddltn made their first contribution in #487
• @LionNatsu made their first contribution in #559
• @aksheyd made their first contribution in #435
• @DanielAvdar made their first contribution in #708
• @5enxia made their first contribution in #704
• @jingyugao made their first contribution in #489

Full Changelog: v1.8.1...v1.9.0

v1.8.1

What's Changed

• Fix streamable http sampling by @ihrpr in #693

Full Changelog: v1.8.0...v1.8.1

v1.8.0

Streamable HTTP release

This is the first release supporting the new Streamable HTTP transport from protocol version 2025-03-26, which supersedes the SSE transport from protocol version 2024-11-05. 🎉
Please report any issues at https://github.com/modelcontextprotocol/python-sdk/issues

Other Changes

• Handle SSE Disconnects Properly by @akash329d in #612
• Add mount_path support for proper SSE endpoint routing with multiple FastMCP servers by @tim-watcha in #540
• docs: fix broken link to OAuthServerProvider in Authentication section of README by @samad-yar-khan in #651
• Fix the issue of get Authorization header fails during bearer auth by @yabea in #637
• Auth SSE simple example by @ihrpr in #610
• Fix: Use absolute path to uv executable in Claude Desktop config by @arcAman07 in #440
• Introduce a function to create a standard AsyncClient with options by @ihrpr in #655

New Contributors

• @akash329d made their first contribution in #612
• @tim-watcha made their first contribution in #540
• @samad-yar-khan made their first contribution in #651
• @yabea made their first contribution in #637
• @arcAman07 made their first contribution in #440

Full Changelog: v1.7.0...v1.8.0

v1.7.1

Full Changelog: v1.7.0...v1.7.1