🦋 Iris 3.13.x

[bjlittle]

Manager	Buddy	Milestone	Feature Branch	Project
@bjlittle	@pp-mo	v3.13	v3.13.x	🦋 Iris 3.13.0

Minor Release	Status	Date	RTD	Release	conda-forge	PyPI
v3.13.0rc0		24-07-2025	RTD	Release	conda-forge	PyPI
v3.13.0		06-08-2025	-	-	-	-

[bjlittle]

It would be kinda cool if iris 3.13 fully supported python 3.13 ...

[hsteptoe]

Wondering if I can tentatively aim for #6129 to be included in this release 🤞

[bjlittle]

@hsteptoe Awesome! Thanks for this 👍

I've added your PR to the v3.13 release milestone and GH Project.

It would be great to bank this bug-fix and make it available to the community 😃

[bjlittle]

@SciTools/iris-devs

The Iris 3.13 development sprints are completed.

Below I've curated a checklist of pull-requests/issues that require to be banked/addressed prior to publishing the Iris 3.13 candidate release.

Please add to this list any outstanding work that requires to be banked or that I should to be aware of, thanks 👍

• Extend Cube Metadata NetCDF zlib compression #6552
• Investigate and reduce benchmark changes for mesh timestamps #6549
• pypi: use trusted publishing for binary wheels #6543
• Merge FEATURE_wkt into main #6537
• Add support for multiple coord_systems #6536
• XML cube output fails for numpy < 2.3 #6542
  • Configure numpy printoptions legacy #6557
• iris.pandas.as_data_frame cannot handle scalar cubes #6419
  • support scalar cube to pandas dataframe #6567
• Whatsnew for derived-bounds  #6555
• "GRIB_PARAM" attributes are not saving to netcdf iris-grib#596
  • Generalise support for netcdf load+save of "special" attributes #6566

[bjlittle]

The iris 3.13.0rc0 candidate release is now available for testing and feedback 👍

Available on conda-forge:

> conda install -c conda-forge/label/rc_iris iris=3.13.0rc0

and PyPI:

> pip install scitools-iris==3.13.0rc0

We'll aim to perform the iris 3.13.0 release on Thu 7 Aug 2025 (2 weeks after candidate release)

[bjlittle]

Ping @pasc85

[bjlittle]

Note that we're aiming to release iris 3.13.0 on Wed 06 Aug 👍