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GH-49772: [C++] Bump bundled mimalloc version#49801

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raulcd wants to merge 5 commits intoapache:mainfrom
raulcd:GH-49772
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GH-49772: [C++] Bump bundled mimalloc version#49801
raulcd wants to merge 5 commits intoapache:mainfrom
raulcd:GH-49772

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@raulcd
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@raulcd raulcd commented Apr 20, 2026

Rationale for this change

mimalloc 3.3.1 was released with a bunch of potentially useful improvements or fixes.

What changes are included in this PR?

Bump bundled mimalloc to 3.3.1

Are these changes tested?

Yes, via Archery

Are there any user-facing changes?

No

@raulcd raulcd added CI: Extra: C++ Run extra C++ CI CI: Extra: R Run extra R CI labels Apr 20, 2026
@pitrou
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pitrou commented Apr 20, 2026

3.3.1 was just released, FTR :)

@github-actions github-actions Bot removed the CI: Extra: C++ Run extra C++ CI label Apr 21, 2026
@raulcd raulcd marked this pull request as ready for review April 22, 2026 06:57
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