Sourced from numpy's releases.

2.4.3 (Mar 9, 2026)

NumPy 2.4.3 Release Notes

The NumPy 2.4.3 is a patch release that fixes bugs discovered after the 2.4.2 release. The most user visible fix may be a threading fix for OpenBLAS on ARM, closing issue #30816.

This release supports Python versions 3.11-3.14

Contributors

A total of 11 people contributed to this release. People with a "+" by their names contributed a patch for the first time.

• Antareep Sarkar +
• Charles Harris
• Joren Hammudoglu
• Matthieu Darbois
• Matti Picus
• Nathan Goldbaum
• Peter Hawkins
• Pieter Eendebak
• Sebastian Berg
• Warren Weckesser
• stratakis +

Pull requests merged

A total of 14 pull requests were merged for this release.

• #30759: MAINT: Prepare 2.4.x for further development
• #30827: BUG: Fix some leaks found via LeakSanitizer (#30756)
• #30841: MAINT: Synchronize 2.4.x submodules with main
• #30849: TYP: matlib: missing extended precision imports
• #30850: BUG: Fix weak hash function in np.isin(). (#30840)
• #30921: BUG: fix infinite recursion in np.ma.flatten_structured_array...
• #30922: BUG: Fix buffer overrun in CPU baseline validation (#30877)
• #30923: BUG: Fix busdaycalendar's handling of a bool array weekmask....
• #30924: BUG: Fix reference leaks and NULL pointer dereferences (#30908)
• #30925: MAINT: fix two minor issues noticed when touching the C API setup
• #30955: ENH: Test .kind not .char in np.testing.assert_equal (#30879)
• #30957: BUG: fix type issues in uses if PyDataType macros
• #30958: MAINT: Don't use vulture 2.15, it has false positives
• #30973: MAINT: update openblas (#30961)

2.4.2 (Feb 1, 2026)

NumPy 2.4.2 Release Notes

The NumPy 2.4.2 is a patch release that fixes bugs discovered after the 2.4.1 release. Highlights are:

... (truncated)

• 8bcb2e7 Merge pull request #30974 from charris/prepare-2.4.3
• 9a2b5ee REL: Prepare for the NumPy 2.4.3 release
• a822ac2 Merge pull request #30973 from charris/backport-30961
• 039bf54 MAINT: update openblas (#30961)
• 254bafa Merge pull request #30955 from charris/backport-30879
• 0cc7d38 ENH: Test .kind not .char in np.testing.assert_equal (#30879)
• 9ee571d Merge pull request #30957 from charris/backport-30918
• f302a16 Merge pull request #30958 from charris/backport-30938
• d240a09 MAINT: Don't use vulture 2.15, it has false positives
• 4fc08e9 MAINT: Don't use vulture 2.15, it has false positives
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