build(deps): bump miniz to 3.1.1 - #774
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`miniz/3.0.2` is no longer listed in conan-center-index's `config.yml` — only `3.0.1` and `3.1.1` remain. The published revision still resolves, so nothing is broken today, but the pin receives no further recipe revisions. 3.1.x is also where miniz resumed maintenance after a two-and-a-half year gap, under a new maintainer: it fixes a central-directory offset overflow, guards against an infinite loop in `tinfl_decompress`, and adds fuzz targets. The full suite passes unchanged against the pinned reference output, so the deflate stream we write is byte-identical.
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miniz/3.0.2has been dropped from conan-center-index'sconfig.yml— only3.0.1and3.1.1remain. The published revision still resolves from the remote,so nothing is broken today, but the pin receives no further recipe revisions.
3.1.x is also where miniz resumed maintenance after a two-and-a-half year gap
(3.0.2 was January 2023, 3.1.0 September 2025), under a new maintainer. It brings
a central-directory offset overflow fix, a guard against an infinite loop in
tinfl_decompress, CMake 4 support and new fuzz targets.Both
conanfile.pyand the oneconan.lockline are edited by hand, so nounrelated pins drift.
Verification
conan install+ a clean RelWithDebInfo build againstminiz/3.1.1.unchanged, so the deflate stream we write is byte-identical — which is the
thing a zip-backend bump could plausibly have broken.
Context: #767. The evaluation there concludes we stay on miniz, so this bump is
the whole of the dependency work.