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Fix shutdown regression with BinaryFormatter - #2750
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The `ConcurrentDictionary` fields that were introduced to support free-threaded Python builds are not serializable and thus need to be rebuilt when the runtime data is unstashed.
This was referenced Oct 10, 2026
CurtHagenlocher
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Oct 12, 2026
Updated [pythonnet](https://github.com/pythonnet/pythonnet) from 3.2.0 to 3.2.1. <details> <summary>Release notes</summary> _Sourced from [pythonnet's releases](https://github.com/pythonnet/pythonnet/releases)._ ## 3.2.1 ## What's Changed * Document MONO_THREADS_SUSPEND and use throughout CI by @filmor in pythonnet/pythonnet#2747 * Fix shutdown regression with BinaryFormatter by @filmor in pythonnet/pythonnet#2750 * Bump urllib3 from 2.7.0 to 2.8.0 in the uv group across 1 directory by @dependabot[bot] in pythonnet/pythonnet#2751 **Full Changelog**: pythonnet/pythonnet@v3.2.0...v3.2.1 Commits viewable in [compare view](pythonnet/pythonnet@v3.2.0...v3.2.1). </details> [](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores) Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`. [//]: # (dependabot-automerge-start) [//]: # (dependabot-automerge-end) --- <details> <summary>Dependabot commands and options</summary> <br /> You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot show <dependency name> ignore conditions` will show all of the ignore conditions of the specified dependency - `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself) </details> Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
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What does this implement/fix? Explain your changes.
The
ConcurrentDictionaryfields that were introduced to supportfree-threaded Python builds are not serializable and thus need to be
rebuilt when the runtime data is unstashed.
Does this close any currently open issues?
#2748
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