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Title: Fix completed request cancellation cleanup by FU-max-boop · Pull Request #2624 · modelcontextprotocol/python-sdk · GitHub

Open Graph Title: Fix completed request cancellation cleanup by FU-max-boop · Pull Request #2624 · modelcontextprotocol/python-sdk

X Title: Fix completed request cancellation cleanup by FU-max-boop · Pull Request #2624 · modelcontextprotocol/python-sdk

Description: The official Python SDK for Model Context Protocol servers and clients - Fix completed request cancellation cleanup by FU-max-boop · Pull Request #2624 · modelcontextprotocol/python-sdk

Open Graph Description: Summary suppress the cancellation raised by CancelScope.__exit__ only after RequestResponder has already completed and sent a response keep incomplete responder cancellations propagating normally ...

X Description: Summary suppress the cancellation raised by CancelScope.__exit__ only after RequestResponder has already completed and sent a response keep incomplete responder cancellations propagating normally ...

Opengraph URL: https://github.com/modelcontextprotocol/python-sdk/pull/2624

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May 17, 2026https://github.com/modelcontextprotocol/python-sdk/pull/2624#issue-4462773165
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May 18, 2026 https://github.com/modelcontextprotocol/python-sdk/pull/2624#ref-issue-4456573446
RequestResponder.__exit__ leaks CancelledError on cancelled request, killing the stdio receive loop #2610 https://github.com/modelcontextprotocol/python-sdk/issues/2610
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May 18, 2026 https://github.com/modelcontextprotocol/python-sdk/pull/2624#ref-pullrequest-4456649173
fix: suppress completed request cancellation leak #2611 https://github.com/modelcontextprotocol/python-sdk/pull/2611
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Fix completed request cancellation cleanuphttps://github.com/modelcontextprotocol/python-sdk/pull/2624/commits/edb78c0e20c08c1c9ad08396523ee87c8db0af2a
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RequestResponder.__exit__ leaks CancelledError on cancelled request, killing the stdio receive loop https://github.com/modelcontextprotocol/python-sdk/issues/2610
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