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.. include:: ../common_links.inc
|iris_version| |build_date| [unreleased]
****************************************
This document explains the changes made to Iris for this release
(:doc:`View all changes <index>`.)
.. dropdown:: |iris_version| Release Highlights
:color: primary
:icon: info
:animate: fade-in
:open:
The highlights for this major/minor release of Iris include:
* N/A
And finally, get in touch with us on :issue:`GitHub<new/choose>` if you have
any issues or feature requests for improving Iris. Enjoy!
📢 Announcements
================
#. N/A
✨ Features
===========
#. N/A
🐛 Bugs Fixed
=============
#. N/A
#. `@rcomer`_ enabled partial collapse of multi-dimensional string coordinates,
fixing :issue:`3653`. (:pull:`5955`)
💣 Incompatible Changes
=======================
#. N/A
🚀 Performance Enhancements
===========================
#. `@bouweandela`_ made the time coordinate categorisation functions in
:mod:`~iris.coord_categorisation` faster. Anyone using
:func:`~iris.coord_categorisation.add_categorised_coord`
with cftime :class:`~cftime.datetime` objects can benefit from the same
improvement by adding a type hint to their category funcion. (:pull:`5999`)
#. `@bouweandela`_ made :meth:`iris.cube.CubeList.concatenate` faster if more
than two cubes are concatenated with equality checks on the values of
auxiliary coordinates, derived coordinates, cell measures, or ancillary
variables enabled.
In some cases, this may lead to higher memory use. This can be remedied by
reducing the number of Dask workers.
In rare cases, the new implementation could potentially be slower. This
may happen when there are very many or large auxiliary coordinates, derived
coordinates, cell measures, or ancillary variables to be checked that span
the concatenation axis. This issue can be avoided by disabling the
problematic check. (:pull:`5926`)
🔥 Deprecations
===============
#. N/A
🔗 Dependencies
===============
#. N/A
📚 Documentation
================
#. N/A
💼 Internal
===========
#. `@trexfeathers`_ improved the new ``tracemalloc`` benchmarking (introduced
in Iris v3.10.0, :pull:`5948`) to use the same statistical repeat strategy
as timing benchmarks. (:pull:`5981`)
.. comment
Whatsnew author names (@github name) in alphabetical order. Note that,
core dev names are automatically included by the common_links.inc:
.. comment
Whatsnew resources in alphabetical order: