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@trexfeathers trexfeathers commented Aug 22, 2025

v3.12 has been patched: v3.12.3. This patch should be propagated to v3.13.x, and also to main.

I created this branch using:

git checkout v3.13.x;
git merge v3.12.x --no-ff;

By propagating to v3.13.x first, we should be able to preserve the original commits and avoid the inevitable merge conflicts that come when using git cherry-pick 1. Since v3.12.x and v3.13.x share a common history, you can see that the only difference is the one we want - the commits from the new patch.

Once the patch release of v3.13 is complete, we can then finish with a normal merge-back from v3.13.x to main.

Footnotes

  1. the alternative: standard merge-back v3.12.x into main. How to then add the desired patch to v3.13.x? Must not merge main into 3.13.x since main includes many other commits that occurred post-3.13-release. Only remaining option is to cherry-pick, which gives the commit(s) new SHA(s), and they conflict when v3.13.x is merged-back into main.

trexfeathers and others added 3 commits August 21, 2025 18:13
* Protect _constraints from elementwise equality.

* Protect cube.py from elementwise equality.

* Fix dumb Constraint eq mistake.

* Protect util from elementwise equality.

* Correct return type for masked_array_equal.

* Protect _structured_array_identitication from elementwise equality.

* Fixes for saver.py

* Protect pp.py from elementwise equality.

* Protect pp_load_rules from elementwise equality.

* Revert "Protect pp.py from elementwise equality."

This reverts commit 864f0d7.

* Protect _concatenate from elementwise NOT equality.

* Protect _constraints from elementwise NOT equality.

* Protect coords.py from elementwise NOT equality.

* Protect cube.py from elementwise NOT equality.

* Protect util from elementwise NOT equality.

* Add structured array test for NumPy elementwise broadcasting error.

* Extra updates for pp_load_rules.py

* What's New entry.

* Expose users to array comparison errors when requested directly, including helpful errors.

* Back out new support for NumPy arrays in AttributeConstraint - inappropriate for patch release.

* Revert change to intersection edge_wrap - will never be comparing 2 arrays.

* Add test coverage for structured array eq with incompatible shapes.

* Test coverage for broadcasting errors in pp_load_rules.

* Common code for comparing attributes in case np arrays.

* Temporary fix for TestLicenseHeaders.

* Don't create a file when testing describe_diff.

* Final tests for attribute comparison.

* Fix any versus all confusion.

* Temporary Nox negation pin - see wntrblm/nox#961. (SciTools#6441)

---------

Co-authored-by: ukmo-ccbunney <[email protected]>
@trexfeathers trexfeathers added the Type: Merge Back Merging a feature branch back to main label Aug 22, 2025
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codecov bot commented Aug 22, 2025

Codecov Report

❌ Patch coverage is 94.87179% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 89.93%. Comparing base (5cdcc16) to head (2b09495).

Files with missing lines Patch % Lines
lib/iris/util.py 90.90% 2 Missing ⚠️
Additional details and impacted files
@@             Coverage Diff             @@
##           v3.13.x    #6669      +/-   ##
===========================================
- Coverage    90.02%   89.93%   -0.10%     
===========================================
  Files           91       91              
  Lines        24783    24411     -372     
  Branches      4710     4555     -155     
===========================================
- Hits         22312    21953     -359     
+ Misses        1700     1692       -8     
+ Partials       771      766       -5     

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