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Signed-off-by: Keith Battocchi <kebatt@microsoft.com>
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Pull request overview
This PR updates the package publishing workflow to use cibuildwheel 3.x instead of being constrained to 2.x. The change addresses a build failure when creating Python 3.11 wheels for Linux, caused by incompatibility between the old Linux image used in cibuildwheel 2.x and scipy 1.17's new Linux image requirements.
Changes:
- Updated cibuildwheel version constraint from
< 3to< 4, enabling cibuildwheel 3.x - Bumped the runner Python version from 3.9 to 3.11 for the wheel building job
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fverac
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Jan 28, 2026
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Builds are currently failing because we can't produce Python 3.11 wheels for Linux; the root cause of this is that scipy 1.17 has switched to a new Linux image for its wheels, and because this is different than the (old) Linux image that we are using to create wheels we now try and fail to build from source instead.
One simple fix for this is to just use a more recent version of cibuildwheel, which will use an updated Linux image and therefore avoid this problem.