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GeezerVison is showing github.com — release v1.2.1 by methane · Pull Request #698 · msgpack/msgpack-python

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@methane

@methane methane commented Jun 18, 2026

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@methane
release v1.2.1
1cebba7
@methane
methane requested a review from Copilot June 18, 2026 15:14
Copilot started reviewing on behalf of methane June 18, 2026 15:15
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Copilot AI reviewed Jun 18, 2026
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Pull request overview

Release prep for v1.2.1 of msgpack, updating the library’s reported version and documenting the security-related behavior change around Unpacker reuse after failures.

Changes:

  • Bump msgpack version from 1.2.0 to 1.2.1.
  • Add a 1.2.1 changelog entry describing the segfault fix and reuse limitation (GHSA-6v7p-g79w-8964).
  • Update README with an IMPORTANT note about Unpacker non-reusability after certain exceptions.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File Description
README.md Adds an IMPORTANT note warning about Unpacker reuse after exceptions.
msgpack/init.py Updates version/__version__ to 1.2.1 (used for dynamic packaging version).
CHANGELOG.md Adds the 1.2.1 release notes including the segfault fix and guidance.

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Comment thread README.md Resolved

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@methane
Potential fix for pull request finding
1cd90a1 
Co-authored-by: Copilot Autofix powered by AI <[email protected]>
@methane
methane merged commit 448d43f into msgpack:main Jun 18, 2026
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@methane
methane deleted the release-v1.2.1 branch June 18, 2026 15:33
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@methane
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