diff --git a/docs/src/developers_guide/documenting/whats_new_contributions.rst b/docs/src/developers_guide/documenting/whats_new_contributions.rst index ebb553024b..576fc5f6a6 100644 --- a/docs/src/developers_guide/documenting/whats_new_contributions.rst +++ b/docs/src/developers_guide/documenting/whats_new_contributions.rst @@ -4,16 +4,21 @@ Contributing a "What's New" Entry ================================= -Iris uses a file named ``latest.rst`` to keep a draft of upcoming changes -that will form the next release. Contributions to the :ref:`iris_whatsnew` +Iris uses a file named ``dev.rst`` to keep a draft of upcoming development changes +that will form the next stable release. Contributions to the :ref:`iris_whatsnew` document are written by the developer most familiar with the change made. The contribution should be included as part of the Iris Pull Request that introduces the change. -The ``latest.rst`` and the past release notes are kept in -``docs/src/whatsnew/``. If you are writing the first contribution after -an Iris release: **create the new** ``latest.rst`` by copying the content from -``latest.rst.template`` in the same directory. +The ``dev.rst`` and the past release notes are kept in the +``docs/src/whatsnew/`` directory. If you are writing the first contribution after +an Iris release: **create the new** ``dev.rst`` by copying the content from +``dev.rst.template`` in the same directory. + +.. note:: + + Ensure that the symbolic link ``latest.rst`` references the ``dev.rst`` file + within the ``docs/src/whatsnew`` directory. Since the `Contribution categories`_ include Internal changes, **all** Iris Pull Requests should be accompanied by a "What's New" contribution. @@ -22,7 +27,7 @@ Pull Requests should be accompanied by a "What's New" contribution. Git Conflicts ============= -If changes to ``latest.rst`` are being suggested in several simultaneous +If changes to ``dev.rst`` are being suggested in several simultaneous Iris Pull Requests, Git will likely encounter merge conflicts. If this situation is thought likely (large PR, high repo activity etc.): @@ -43,7 +48,7 @@ situation is thought likely (large PR, high repo activity etc.): * PR reviewer: review the "What's New" PR, merge once acceptable -These measures should mean the suggested ``latest.rst`` changes are outstanding +These measures should mean the suggested ``dev.rst`` changes are outstanding for the minimum time, minimising conflicts and minimising the need to rebase or merge from trunk. diff --git a/docs/src/developers_guide/release.rst b/docs/src/developers_guide/release.rst index 09b884302b..f4d44781fc 100644 --- a/docs/src/developers_guide/release.rst +++ b/docs/src/developers_guide/release.rst @@ -183,9 +183,9 @@ back onto the ``SciTools/iris`` ``main`` branch. To achieve this, first cut a local branch from the latest ``main`` branch, and `git merge` the :literal:`.x` release branch into it. Ensure that the -``iris.__version__``, ``docs/src/whatsnew/index.rst`` and ``docs/src/whatsnew/latest.rst`` -are correct, before committing these changes and then proposing a pull-request -on the ``main`` branch of ``SciTools/iris``. +``iris.__version__``, ``docs/src/whatsnew/index.rst``, ``docs/src/whatsnew/dev.rst``, +and ``docs/src/whatsnew/latest.rst`` are correct, before committing these changes +and then proposing a pull-request on the ``main`` branch of ``SciTools/iris``. Point Releases @@ -218,9 +218,11 @@ Release Steps #. Update the ``iris.__init__.py`` version string e.g., to ``1.9.0`` #. Update the ``whatsnew`` for the release: - * Use ``git`` to rename ``docs/src/whatsnew/latest.rst`` to the release + * Use ``git`` to rename ``docs/src/whatsnew/dev.rst`` to the release version file ``v1.9.rst`` - * Use ``git`` to delete the ``docs/src/whatsnew/latest.rst.template`` file + * Update the symbolic link ``latest.rst`` to reference the latest + whatsnew ``v1.9.rst`` + * Use ``git`` to delete the ``docs/src/whatsnew/dev.rst.template`` file * In ``v1.9.rst`` remove the ``[unreleased]`` caption from the page title. Note that, the Iris version and release date are updated automatically when the documentation is built @@ -229,11 +231,11 @@ Release Steps dropdown at the top of the file, which provides extra detail on notable changes * Use ``git`` to add and commit all changes, including removal of - ``latest.rst.template`` + ``dev.rst.template`` and update to the ``latest.rst`` symbolic link. #. Update the ``whatsnew`` index ``docs/src/whatsnew/index.rst`` - * Remove the reference to ``latest.rst`` + * Remove the reference to ``dev.rst`` * Add a reference to ``v1.9.rst`` to the top of the list #. Check your changes by building the documentation and reviewing @@ -254,13 +256,6 @@ Post Release Steps `Read The Docs`_ to ensure that the appropriate versions are ``Active`` and/or ``Hidden``. To do this ``Edit`` the appropriate version e.g., see `Editing v3.0.0rc0`_ (must be logged into Read the Docs). -#. Copy ``docs/src/whatsnew/latest.rst.template`` to - ``docs/src/whatsnew/latest.rst``. This will reset - the file with the ``unreleased`` heading and placeholders for the - ``whatsnew`` headings -#. Add back in the reference to ``latest.rst`` to the ``whatsnew`` index - ``docs/src/whatsnew/index.rst`` -#. Update ``iris.__init__.py`` version string to show as ``1.10.dev0`` #. Merge back to ``main`` diff --git a/docs/src/index.rst b/docs/src/index.rst index d6fc5f2f7e..e6a787a220 100644 --- a/docs/src/index.rst +++ b/docs/src/index.rst @@ -98,6 +98,15 @@ For **Iris 2.4** and earlier documentation please see the generated/gallery/index +.. toctree:: + :maxdepth: 1 + :caption: What's New in Iris + :hidden: + + whatsnew/latest + Archive + + .. toctree:: :maxdepth: 1 :caption: User Guide @@ -154,6 +163,5 @@ For **Iris 2.4** and earlier documentation please see the :hidden: generated/api/iris - whatsnew/index techpapers/index copyright diff --git a/docs/src/whatsnew/dev.rst b/docs/src/whatsnew/dev.rst new file mode 100644 index 0000000000..e2d4c2bc0b --- /dev/null +++ b/docs/src/whatsnew/dev.rst @@ -0,0 +1,382 @@ +.. include:: ../common_links.inc + +|iris_version| |build_date| [unreleased] +**************************************** + +This document explains the changes made to Iris for this release +(:doc:`View all changes `.) + + +.. dropdown:: :opticon:`report` |iris_version| Release Highlights + :container: + shadow + :title: text-primary text-center font-weight-bold + :body: bg-light + :animate: fade-in + :open: + + The highlights for this minor release of Iris include: + + * We've added experimental support for + :ref:`Meshes `, which can now be loaded and + attached to a cube. Mesh support is based on the based on `CF-UGRID`_ + model. + * We've also dropped support for ``Python 3.7``. + + And finally, get in touch with us on :issue:`GitHub` if you have + any issues or feature requests for improving Iris. Enjoy! + + +📢 Announcements +================ + +#. Welcome to `@wjbenfold`_, `@tinyendian`_, `@larsbarring`_, `@bsherratt`_ and + `@aaronspring`_ who made their first contributions to Iris. The first of + many we hope! +#. Congratulations to `@wjbenfold`_ who has become a core developer for Iris! 🎉 + + +✨ Features +=========== + +#. `@bjlittle`_, `@pp-mo`_, `@trexfeathers`_ and `@stephenworsley`_ added + support for :ref:`unstructured meshes `. This involved + adding a data model (:pull:`3968`, :pull:`4014`, :pull:`4027`, :pull:`4036`, + :pull:`4053`, :pull:`4439`) and API (:pull:`4063`, :pull:`4064`), and + supporting representation (:pull:`4033`, :pull:`4054`) of data on meshes. + Most of this new API can be found in :mod:`iris.experimental.ugrid`. The key + objects introduced are :class:`iris.experimental.ugrid.mesh.Mesh`, + :class:`iris.experimental.ugrid.mesh.MeshCoord` and + :obj:`iris.experimental.ugrid.load.PARSE_UGRID_ON_LOAD`. + A :class:`~iris.experimental.ugrid.mesh.Mesh` contains a full description of a UGRID + type mesh. :class:`~iris.experimental.ugrid.mesh.MeshCoord`\ s are coordinates that + reference and represent a :class:`~iris.experimental.ugrid.mesh.Mesh` for use + on a :class:`~iris.cube.Cube`. :class:`~iris.cube.Cube`\ s are also given the + property :attr:`~iris.cube.Cube.mesh` which returns a + :class:`~iris.experimental.ugrid.mesh.Mesh` if one is attached to the + :class:`~iris.cube.Cube` via a :class:`~iris.experimental.ugrid.mesh.MeshCoord`. + +#. `@trexfeathers`_ added support for loading unstructured mesh data from netcdf data, + for files using the `CF-UGRID`_ conventions. + The context manager :obj:`~iris.experimental.ugrid.load.PARSE_UGRID_ON_LOAD` + provides a way to load UGRID files so that :class:`~iris.cube.Cube`\ s can be + returned with a :class:`~iris.experimental.ugrid.mesh.Mesh` attached. + (:pull:`4058`). + +#. `@pp-mo`_ added support to save cubes with :ref:`meshes ` to netcdf + files, using the `CF-UGRID`_ conventions. + The existing :meth:`iris.save` function now does this, when saving cubes with meshes. + A routine :meth:`iris.experimental.ugrid.save.save_mesh` allows saving + :class:`~iris.experimental.ugrid.mesh.Mesh` objects to netcdf *without* any associated data + (i.e. not attached to cubes). + (:pull:`4318` and :pull:`4339`). + +#. `@trexfeathers`_ added :meth:`iris.experimental.ugrid.mesh.Mesh.from_coords` + for inferring a :class:`~iris.experimental.ugrid.mesh.Mesh` from an + appropriate collection of :class:`iris.coords.Coord`\ s. + +#. `@larsbarring`_ updated :func:`~iris.util.equalise_attributes` to return a list of dictionaries + containing the attributes removed from each :class:`~iris.cube.Cube`. (:pull:`4357`) + +#. `@trexfeathers`_ enabled streaming of **all** lazy arrays when saving to + NetCDF files (was previously just :class:`~iris.cube.Cube` + :attr:`~iris.cube.Cube.data`). This is + important given the much greater size of + :class:`~iris.coords.AuxCoord` :attr:`~iris.coords.AuxCoord.points` and + :class:`~iris.experimental.ugrid.mesh.Connectivity` + :attr:`~iris.experimental.ugrid.mesh.Connectivity.indices` under the + :ref:`mesh model `. (:pull:`4375`) + +#. `@bsherratt`_ added a ``threshold`` parameter to + :meth:`~iris.cube.Cube.intersection` (:pull:`4363`) + +#. `@wjbenfold`_ added test data to ci benchmarks so that it is accessible to + benchmark scripts. Also added a regridding benchmark that uses this data + (:pull:`4402`) + +#. `@pp-mo`_ updated to the latest CF Standard Names Table ``v78`` (21 Sept 2021). + (:issue:`4479`, :pull:`4483`) + +#. `@SimonPeatman`_ added support for filenames in the form of a :class:`~pathlib.PurePath` + in :func:`~iris.load`, :func:`~iris.load_cube`, :func:`~iris.load_cubes`, + :func:`~iris.load_raw` and :func:`~iris.save` (:issue:`3411`, :pull:`3917`). + Support for :class:`~pathlib.PurePath` is yet to be implemented across the rest + of Iris (:issue:`4523`). + +#. `@pp-mo`_ removed broken tooling for deriving Iris metadata translations + from `Metarelate`_. From now we intend to manage phenonemon translation + in Iris itself. (:pull:`4484`) + +#. `@pp-mo`_ improved printout of various cube data component objects : + :class:`~iris.coords.Coord`, :class:`~iris.coords.CellMeasure`, + :class:`~iris.coords.AncillaryVariable`, + :class:`~iris.experimental.ugrid.mesh.MeshCoord` and + :class:`~iris.experimental.ugrid.mesh.Mesh`. + These now all provide a more controllable ``summary()`` method, and + more convenient and readable ``str()`` and ``repr()`` output in the style of + the :class:`iris.cube.Cube`. + They also no longer realise lazy data. (:pull:`4499`). + + +🐛 Bugs Fixed +============= + +#. `@rcomer`_ fixed :meth:`~iris.cube.Cube.intersection` for special cases where + one cell's bounds align with the requested maximum and negative minimum, fixing + :issue:`4221`. (:pull:`4278`) + +#. `@bsherratt`_ fixed further edge cases in + :meth:`~iris.cube.Cube.intersection`, including :issue:`3698` (:pull:`4363`) + +#. `@tinyendian`_ fixed the error message produced by :meth:`~iris.cube.CubeList.concatenate_cube` + when a cube list contains cubes with different names, which will no longer report + "Cube names differ: var1 != var1" if var1 appears multiple times in the list + (:issue:`4342`, :pull:`4345`) + +#. `@larsbarring`_ fixed :class:`~iris.coord_systems.GeoCS` to handle spherical ellipsoid + parameter inverse_flattening = 0 (:issue:`4146`, :pull:`4348`) + +#. `@pdearnshaw`_ fixed an error in the call to :class:`cftime.datetime` in + :mod:`~iris.fileformats.pp_save_rules` that prevented the saving to PP of climate + means for DJF (:pull:`4391`) + +#. `@wjbenfold`_ improved the error message for failure of :meth:`~iris.cube.CubeList.concatenate` + to indicate that the value of a scalar coordinate may be mismatched, rather than the metadata + (:issue:`4096`, :pull:`4387`) + +#. `@bsherratt`_ fixed a regression to the NAME file loader introduced in 3.0.4, + as well as some long-standing bugs with vertical coordinates and number + formats. (:pull:`4411`) + +#. `@rcomer`_ fixed :meth:`~iris.cube.Cube.subset` to alway return ``None`` if + no value match is found. (:pull:`4417`) + +#. `@wjbenfold`_ changed :meth:`iris.util.points_step` to stop it from warning + when applied to a single point (:issue:`4250`, :pull:`4367`) + +#. `@trexfeathers`_ changed :class:`~iris.coords._DimensionalMetadata` and + :class:`~iris.experimental.ugrid.Connectivity` equality methods to preserve + array laziness, allowing efficient comparisons even with larger-than-memory + objects. (:pull:`4439`) + +#. `@rcomer`_ modified :meth:`~iris.cube.Cube.aggregated_by` to calculate new + coordinate bounds using minimum and maximum for unordered coordinates, + fixing :issue:`1528`. (:pull:`4315`) + +#. `@wjbenfold`_ changed how a delayed unit conversion is performed on a cube + so that a cube with lazy data awaiting a unit conversion can be pickled. + (:issue:`4354`, :pull:`4377`) + +#. `@pp-mo`_ fixed a bug in netcdf loading, whereby *any* rotated latlon coordinate + was mistakenly interpreted as a latitude, usually resulting in two 'latitude's + instead of one latitude and one longitude. + (:issue:`4460`, :pull:`4470`) + +#. `@wjbenfold`_ stopped :meth:`iris.coord_systems.GeogCS.as_cartopy_projection` + from assuming the globe to be the Earth (:issue:`4408`, :pull:`4497`) + +#. `@rcomer`_ corrected the ``long_name`` mapping from UM stash code ``m01s09i215`` + to indicate cloud fraction greater than 7.9 oktas, rather than 7.5 + (:issue:`3305`, :pull:`4535`) + + +💣 Incompatible Changes +======================= + +#. N/A + + +🚀 Performance Enhancements +=========================== + +#. `@wjbenfold`_ resolved an issue that previously caused regridding with lazy + data to take significantly longer than with real data. Benchmark + :class:`benchmarks.HorizontalChunkedRegridding` shows a time decrease + from >10s to 625ms. (:issue:`4280`, :pull:`4400`) + +#. `@bjlittle`_ included an optimisation to :class:`~iris.cube.Cube.coord_dims` + to avoid unnecessary processing whenever a coordinate instance that already + exists within the cube is provided. (:pull:`4549`) + + +🔥 Deprecations +=============== + +#. `@wjbenfold`_ removed :mod:`iris.experimental.equalise_cubes`. In ``v3.0`` + the experimental ``equalise_attributes`` functionality was moved to the + :mod:`iris.util.equalise_attributes` function. Since then, calling the + :func:`iris.experimental.equalise_cubes.equalise_attributes` function raised + an exception. (:issue:`3528`, :pull:`4496`) + +#. `@wjbenfold`_ deprecated :func:`iris.util.approx_equal` in preference for + :func:`math.isclose`. The :func:`~iris.util.approx_equal` function will be + removed in a future release of Iris. (:pull:`4514`) + +#. `@wjbenfold`_ deprecated :mod:`iris.experimental.raster` as it is not + believed to still be in use. The deprecation warnings invite users to contact + the Iris Developers if this isn't the case. (:pull:`4525`) + +#. `@wjbenfold`_ deprecated :mod:`iris.fileformats.abf` and + :mod:`iris.fileformats.dot` as they are not believed to still be in use. The + deprecation warnings invite users to contact the Iris Developers if this + isn't the case. (:pull:`4515`) + +#. `@wjbenfold`_ removed the :func:`iris.util.as_compatible_shape` function, + which was deprecated in ``v3.0``. Instead use + :class:`iris.common.resolve.Resolve`. For example, rather than calling + ``as_compatible_shape(src_cube, target_cube)`` replace with + ``Resolve(src_cube, target_cube)(target_cube.core_data())``. (:pull:`4513`) + +#. `@wjbenfold`_ deprecated :func:`iris.analysis.maths.intersection_of_cubes` in + preference for :meth:`iris.cube.CubeList.extract_overlapping`. The + :func:`~iris.analysis.maths.intersection_of_cubes` function will be removed in + a future release of Iris. (:pull:`4541`) + +#. `@pp-mo`_ deprecated :mod:`iris.experimental.regrid_conservative`. This is + now replaced by `iris-emsf-regrid`_. (:pull:`4551`) + +#. `@pp-mo`_ deprecated everything in :mod:`iris.experimental.regrid`. + Most features have a preferred exact alternative, as suggested, *except* + :class:`iris.experimental.regrid.ProjectedUnstructuredLinear` : that has no + identical equivalent, but :class:`iris.analysis.UnstructuredNearest` is + suggested as being quite close (though possibly slower). (:pull:`4548`) + + +🔗 Dependencies +=============== + +#. `@bjlittle`_ introduced the ``cartopy >=0.20`` minimum pin. + (:pull:`4331`) + +#. `@trexfeathers`_ introduced the ``cf-units >=3`` and ``nc-time-axis >=1.3`` + minimum pins. (:pull:`4356`) + +#. `@bjlittle`_ introduced the ``numpy >=1.19`` minimum pin, in + accordance with `NEP-29`_ deprecation policy. (:pull:`4386`) + +#. `@bjlittle`_ dropped support for ``Python 3.7``, as per the `NEP-29`_ + backwards compatibility and deprecation policy schedule. (:pull:`4481`) + + +📚 Documentation +================ + +#. `@rcomer`_ updated the "Plotting Wind Direction Using Quiver" Gallery + example. (:pull:`4120`) + +#. `@trexfeathers`_ included `Iris GitHub Discussions`_ in + :ref:`get involved `. (:pull:`4307`) + +#. `@wjbenfold`_ improved readability in :ref:`userguide interpolation + section `. (:pull:`4314`) + +#. `@wjbenfold`_ added explanation about the absence of | operator for + :class:`iris.Constraint` to :ref:`userguide loading section + ` and to api reference documentation. (:pull:`4321`) + +#. `@trexfeathers`_ added more detail on making `iris-test-data`_ available + during :ref:`developer_running_tests`. (:pull:`4359`) + +#. `@lbdreyer`_ added a section to the release documentation outlining the role + of the :ref:`release_manager`. (:pull:`4413`) + +#. `@trexfeathers`_ encouraged contributors to include type hinting in code + they are working on - :ref:`code_formatting`. (:pull:`4390`) + +#. `@wjbenfold`_ updated Cartopy documentation links to point to the renamed + :class:`cartopy.mpl.geoaxes.GeoAxes`. (:pull:`4464`) + +#. `@wjbenfold`_ clarified behaviour of :func:`iris.load` in :ref:`userguide + loading section `. (:pull:`4462`) + +#. `@bjlittle`_ migrated readthedocs to use mambaforge for `faster documentation building`_. + (:pull:`4476`) + +#. `@wjbenfold`_ contributed `@alastair-gemmell`_'s :ref:`step-by-step guide to + contributing to the docs ` to the docs. + (:pull:`4461`) + +#. `@pp-mo`_ improved and corrected docstrings of + :class:`iris.analysis.PointInCell`, making it clear what is the actual + calculation performed. (:pull:`4548`) + +#. `@pp-mo`_ removed reference in docstring of + :class:`iris.analysis.UnstructuredNearest` to the obsolete (deprecated) + :class:`iris.experimental.regrid.ProjectedUnstructuredNearest`. + (:pull:`4548`) + + +💼 Internal +=========== + +#. `@trexfeathers`_ set the linkcheck to ignore + http://www.nationalarchives.gov.uk/doc/open-government-licence since this + always works locally, but never within CI. (:pull:`4307`) + +#. `@wjbenfold`_ netCDF integration tests now skip ``TestConstrainedLoad`` if + test data is missing (:pull:`4319`) + +#. `@wjbenfold`_ excluded ``Good First Issue`` labelled issues from being + marked stale. (:pull:`4317`) + +#. `@tkknight`_ added additional make targets for reducing the time of the + documentation build including ``html-noapi`` and ``html-quick``. + Useful for development purposes only. For more information see + :ref:`contributing.documentation.building` the documentation. (:pull:`4333`) + +#. `@rcomer`_ modified the ``animation`` test to prevent it throwing a warning + that sometimes interferes with unrelated tests. (:pull:`4330`) + +#. `@rcomer`_ removed a now redundant workaround in :func:`~iris.plot.contourf`. + (:pull:`4349`) + +#. `@trexfeathers`_ refactored :mod:`iris.experimental.ugrid` into sub-modules. + (:pull:`4347`). + +#. `@bjlittle`_ enabled the `sort-all`_ `pre-commit`_ hook to automatically + sort ``__all__`` entries into alphabetical order. (:pull:`4353`) + +#. `@rcomer`_ modified a NetCDF saver test to prevent it triggering a numpy + deprecation warning. (:issue:`4374`, :pull:`4376`) + +#. `@akuhnregnier`_ removed addition of period from + :func:`~iris.analysis.cartography.wrap_lons` and updated affected tests + using ``assertArrayAllClose`` following :issue:`3993`. + (:pull:`4421`) + +#. `@rcomer`_ updated some tests to work with Matplotlib v3.5. (:pull:`4428`) + +#. `@rcomer`_ applied minor fixes to some regridding tests. (:pull:`4432`) + +#. `@lbdreyer`_ corrected the license PyPI classifier. (:pull:`4435`) + +#. `@aaronspring `_ exchanged ``dask`` with + ``dask-core`` in testing environments reducing the number of dependencies + installed for testing. (:pull:`4434`) + +#. `@wjbenfold`_ prevented github action runs in forks (:issue:`4441`, + :pull:`4444`) + +#. `@wjbenfold`_ fixed tests for hybrid formulae that weren't being found by + nose (:issue:`4431`, :pull:`4450`) + +.. comment + Whatsnew author names (@github name) in alphabetical order. Note that, + core dev names are automatically included by the common_links.inc: + +.. _@aaronspring: https://github.com/aaronspring +.. _@akuhnregnier: https://github.com/akuhnregnier +.. _@bsherratt: https://github.com/bsherratt +.. _@larsbarring: https://github.com/larsbarring +.. _@pdearnshaw: https://github.com/pdearnshaw +.. _@SimonPeatman: https://github.com/SimonPeatman +.. _@tinyendian: https://github.com/tinyendian + +.. comment + Whatsnew resources in alphabetical order: + +.. _NEP-29: https://numpy.org/neps/nep-0029-deprecation_policy.html +.. _Metarelate: http://www.metarelate.net/ +.. _UGRID: http://ugrid-conventions.github.io/ugrid-conventions/ +.. _iris-emsf-regrid: https://github.com/SciTools-incubator/iris-esmf-regrid +.. _faster documentation building: https://docs.readthedocs.io/en/stable/guides/conda.html#making-builds-faster-with-mamba +.. _sort-all: https://github.com/aio-libs/sort-all diff --git a/docs/src/whatsnew/latest.rst.template b/docs/src/whatsnew/dev.rst.template similarity index 100% rename from docs/src/whatsnew/latest.rst.template rename to docs/src/whatsnew/dev.rst.template diff --git a/docs/src/whatsnew/index.rst b/docs/src/whatsnew/index.rst index fabb056484..51f03e8d8f 100644 --- a/docs/src/whatsnew/index.rst +++ b/docs/src/whatsnew/index.rst @@ -10,7 +10,7 @@ Iris versions. .. toctree:: :maxdepth: 1 - latest.rst + dev.rst 3.1.rst 3.0.rst 2.4.rst diff --git a/docs/src/whatsnew/latest.rst b/docs/src/whatsnew/latest.rst deleted file mode 100644 index e2d4c2bc0b..0000000000 --- a/docs/src/whatsnew/latest.rst +++ /dev/null @@ -1,382 +0,0 @@ -.. include:: ../common_links.inc - -|iris_version| |build_date| [unreleased] -**************************************** - -This document explains the changes made to Iris for this release -(:doc:`View all changes `.) - - -.. dropdown:: :opticon:`report` |iris_version| Release Highlights - :container: + shadow - :title: text-primary text-center font-weight-bold - :body: bg-light - :animate: fade-in - :open: - - The highlights for this minor release of Iris include: - - * We've added experimental support for - :ref:`Meshes `, which can now be loaded and - attached to a cube. Mesh support is based on the based on `CF-UGRID`_ - model. - * We've also dropped support for ``Python 3.7``. - - And finally, get in touch with us on :issue:`GitHub` if you have - any issues or feature requests for improving Iris. Enjoy! - - -📢 Announcements -================ - -#. Welcome to `@wjbenfold`_, `@tinyendian`_, `@larsbarring`_, `@bsherratt`_ and - `@aaronspring`_ who made their first contributions to Iris. The first of - many we hope! -#. Congratulations to `@wjbenfold`_ who has become a core developer for Iris! 🎉 - - -✨ Features -=========== - -#. `@bjlittle`_, `@pp-mo`_, `@trexfeathers`_ and `@stephenworsley`_ added - support for :ref:`unstructured meshes `. This involved - adding a data model (:pull:`3968`, :pull:`4014`, :pull:`4027`, :pull:`4036`, - :pull:`4053`, :pull:`4439`) and API (:pull:`4063`, :pull:`4064`), and - supporting representation (:pull:`4033`, :pull:`4054`) of data on meshes. - Most of this new API can be found in :mod:`iris.experimental.ugrid`. The key - objects introduced are :class:`iris.experimental.ugrid.mesh.Mesh`, - :class:`iris.experimental.ugrid.mesh.MeshCoord` and - :obj:`iris.experimental.ugrid.load.PARSE_UGRID_ON_LOAD`. - A :class:`~iris.experimental.ugrid.mesh.Mesh` contains a full description of a UGRID - type mesh. :class:`~iris.experimental.ugrid.mesh.MeshCoord`\ s are coordinates that - reference and represent a :class:`~iris.experimental.ugrid.mesh.Mesh` for use - on a :class:`~iris.cube.Cube`. :class:`~iris.cube.Cube`\ s are also given the - property :attr:`~iris.cube.Cube.mesh` which returns a - :class:`~iris.experimental.ugrid.mesh.Mesh` if one is attached to the - :class:`~iris.cube.Cube` via a :class:`~iris.experimental.ugrid.mesh.MeshCoord`. - -#. `@trexfeathers`_ added support for loading unstructured mesh data from netcdf data, - for files using the `CF-UGRID`_ conventions. - The context manager :obj:`~iris.experimental.ugrid.load.PARSE_UGRID_ON_LOAD` - provides a way to load UGRID files so that :class:`~iris.cube.Cube`\ s can be - returned with a :class:`~iris.experimental.ugrid.mesh.Mesh` attached. - (:pull:`4058`). - -#. `@pp-mo`_ added support to save cubes with :ref:`meshes ` to netcdf - files, using the `CF-UGRID`_ conventions. - The existing :meth:`iris.save` function now does this, when saving cubes with meshes. - A routine :meth:`iris.experimental.ugrid.save.save_mesh` allows saving - :class:`~iris.experimental.ugrid.mesh.Mesh` objects to netcdf *without* any associated data - (i.e. not attached to cubes). - (:pull:`4318` and :pull:`4339`). - -#. `@trexfeathers`_ added :meth:`iris.experimental.ugrid.mesh.Mesh.from_coords` - for inferring a :class:`~iris.experimental.ugrid.mesh.Mesh` from an - appropriate collection of :class:`iris.coords.Coord`\ s. - -#. `@larsbarring`_ updated :func:`~iris.util.equalise_attributes` to return a list of dictionaries - containing the attributes removed from each :class:`~iris.cube.Cube`. (:pull:`4357`) - -#. `@trexfeathers`_ enabled streaming of **all** lazy arrays when saving to - NetCDF files (was previously just :class:`~iris.cube.Cube` - :attr:`~iris.cube.Cube.data`). This is - important given the much greater size of - :class:`~iris.coords.AuxCoord` :attr:`~iris.coords.AuxCoord.points` and - :class:`~iris.experimental.ugrid.mesh.Connectivity` - :attr:`~iris.experimental.ugrid.mesh.Connectivity.indices` under the - :ref:`mesh model `. (:pull:`4375`) - -#. `@bsherratt`_ added a ``threshold`` parameter to - :meth:`~iris.cube.Cube.intersection` (:pull:`4363`) - -#. `@wjbenfold`_ added test data to ci benchmarks so that it is accessible to - benchmark scripts. Also added a regridding benchmark that uses this data - (:pull:`4402`) - -#. `@pp-mo`_ updated to the latest CF Standard Names Table ``v78`` (21 Sept 2021). - (:issue:`4479`, :pull:`4483`) - -#. `@SimonPeatman`_ added support for filenames in the form of a :class:`~pathlib.PurePath` - in :func:`~iris.load`, :func:`~iris.load_cube`, :func:`~iris.load_cubes`, - :func:`~iris.load_raw` and :func:`~iris.save` (:issue:`3411`, :pull:`3917`). - Support for :class:`~pathlib.PurePath` is yet to be implemented across the rest - of Iris (:issue:`4523`). - -#. `@pp-mo`_ removed broken tooling for deriving Iris metadata translations - from `Metarelate`_. From now we intend to manage phenonemon translation - in Iris itself. (:pull:`4484`) - -#. `@pp-mo`_ improved printout of various cube data component objects : - :class:`~iris.coords.Coord`, :class:`~iris.coords.CellMeasure`, - :class:`~iris.coords.AncillaryVariable`, - :class:`~iris.experimental.ugrid.mesh.MeshCoord` and - :class:`~iris.experimental.ugrid.mesh.Mesh`. - These now all provide a more controllable ``summary()`` method, and - more convenient and readable ``str()`` and ``repr()`` output in the style of - the :class:`iris.cube.Cube`. - They also no longer realise lazy data. (:pull:`4499`). - - -🐛 Bugs Fixed -============= - -#. `@rcomer`_ fixed :meth:`~iris.cube.Cube.intersection` for special cases where - one cell's bounds align with the requested maximum and negative minimum, fixing - :issue:`4221`. (:pull:`4278`) - -#. `@bsherratt`_ fixed further edge cases in - :meth:`~iris.cube.Cube.intersection`, including :issue:`3698` (:pull:`4363`) - -#. `@tinyendian`_ fixed the error message produced by :meth:`~iris.cube.CubeList.concatenate_cube` - when a cube list contains cubes with different names, which will no longer report - "Cube names differ: var1 != var1" if var1 appears multiple times in the list - (:issue:`4342`, :pull:`4345`) - -#. `@larsbarring`_ fixed :class:`~iris.coord_systems.GeoCS` to handle spherical ellipsoid - parameter inverse_flattening = 0 (:issue:`4146`, :pull:`4348`) - -#. `@pdearnshaw`_ fixed an error in the call to :class:`cftime.datetime` in - :mod:`~iris.fileformats.pp_save_rules` that prevented the saving to PP of climate - means for DJF (:pull:`4391`) - -#. `@wjbenfold`_ improved the error message for failure of :meth:`~iris.cube.CubeList.concatenate` - to indicate that the value of a scalar coordinate may be mismatched, rather than the metadata - (:issue:`4096`, :pull:`4387`) - -#. `@bsherratt`_ fixed a regression to the NAME file loader introduced in 3.0.4, - as well as some long-standing bugs with vertical coordinates and number - formats. (:pull:`4411`) - -#. `@rcomer`_ fixed :meth:`~iris.cube.Cube.subset` to alway return ``None`` if - no value match is found. (:pull:`4417`) - -#. `@wjbenfold`_ changed :meth:`iris.util.points_step` to stop it from warning - when applied to a single point (:issue:`4250`, :pull:`4367`) - -#. `@trexfeathers`_ changed :class:`~iris.coords._DimensionalMetadata` and - :class:`~iris.experimental.ugrid.Connectivity` equality methods to preserve - array laziness, allowing efficient comparisons even with larger-than-memory - objects. (:pull:`4439`) - -#. `@rcomer`_ modified :meth:`~iris.cube.Cube.aggregated_by` to calculate new - coordinate bounds using minimum and maximum for unordered coordinates, - fixing :issue:`1528`. (:pull:`4315`) - -#. `@wjbenfold`_ changed how a delayed unit conversion is performed on a cube - so that a cube with lazy data awaiting a unit conversion can be pickled. - (:issue:`4354`, :pull:`4377`) - -#. `@pp-mo`_ fixed a bug in netcdf loading, whereby *any* rotated latlon coordinate - was mistakenly interpreted as a latitude, usually resulting in two 'latitude's - instead of one latitude and one longitude. - (:issue:`4460`, :pull:`4470`) - -#. `@wjbenfold`_ stopped :meth:`iris.coord_systems.GeogCS.as_cartopy_projection` - from assuming the globe to be the Earth (:issue:`4408`, :pull:`4497`) - -#. `@rcomer`_ corrected the ``long_name`` mapping from UM stash code ``m01s09i215`` - to indicate cloud fraction greater than 7.9 oktas, rather than 7.5 - (:issue:`3305`, :pull:`4535`) - - -💣 Incompatible Changes -======================= - -#. N/A - - -🚀 Performance Enhancements -=========================== - -#. `@wjbenfold`_ resolved an issue that previously caused regridding with lazy - data to take significantly longer than with real data. Benchmark - :class:`benchmarks.HorizontalChunkedRegridding` shows a time decrease - from >10s to 625ms. (:issue:`4280`, :pull:`4400`) - -#. `@bjlittle`_ included an optimisation to :class:`~iris.cube.Cube.coord_dims` - to avoid unnecessary processing whenever a coordinate instance that already - exists within the cube is provided. (:pull:`4549`) - - -🔥 Deprecations -=============== - -#. `@wjbenfold`_ removed :mod:`iris.experimental.equalise_cubes`. In ``v3.0`` - the experimental ``equalise_attributes`` functionality was moved to the - :mod:`iris.util.equalise_attributes` function. Since then, calling the - :func:`iris.experimental.equalise_cubes.equalise_attributes` function raised - an exception. (:issue:`3528`, :pull:`4496`) - -#. `@wjbenfold`_ deprecated :func:`iris.util.approx_equal` in preference for - :func:`math.isclose`. The :func:`~iris.util.approx_equal` function will be - removed in a future release of Iris. (:pull:`4514`) - -#. `@wjbenfold`_ deprecated :mod:`iris.experimental.raster` as it is not - believed to still be in use. The deprecation warnings invite users to contact - the Iris Developers if this isn't the case. (:pull:`4525`) - -#. `@wjbenfold`_ deprecated :mod:`iris.fileformats.abf` and - :mod:`iris.fileformats.dot` as they are not believed to still be in use. The - deprecation warnings invite users to contact the Iris Developers if this - isn't the case. (:pull:`4515`) - -#. `@wjbenfold`_ removed the :func:`iris.util.as_compatible_shape` function, - which was deprecated in ``v3.0``. Instead use - :class:`iris.common.resolve.Resolve`. For example, rather than calling - ``as_compatible_shape(src_cube, target_cube)`` replace with - ``Resolve(src_cube, target_cube)(target_cube.core_data())``. (:pull:`4513`) - -#. `@wjbenfold`_ deprecated :func:`iris.analysis.maths.intersection_of_cubes` in - preference for :meth:`iris.cube.CubeList.extract_overlapping`. The - :func:`~iris.analysis.maths.intersection_of_cubes` function will be removed in - a future release of Iris. (:pull:`4541`) - -#. `@pp-mo`_ deprecated :mod:`iris.experimental.regrid_conservative`. This is - now replaced by `iris-emsf-regrid`_. (:pull:`4551`) - -#. `@pp-mo`_ deprecated everything in :mod:`iris.experimental.regrid`. - Most features have a preferred exact alternative, as suggested, *except* - :class:`iris.experimental.regrid.ProjectedUnstructuredLinear` : that has no - identical equivalent, but :class:`iris.analysis.UnstructuredNearest` is - suggested as being quite close (though possibly slower). (:pull:`4548`) - - -🔗 Dependencies -=============== - -#. `@bjlittle`_ introduced the ``cartopy >=0.20`` minimum pin. - (:pull:`4331`) - -#. `@trexfeathers`_ introduced the ``cf-units >=3`` and ``nc-time-axis >=1.3`` - minimum pins. (:pull:`4356`) - -#. `@bjlittle`_ introduced the ``numpy >=1.19`` minimum pin, in - accordance with `NEP-29`_ deprecation policy. (:pull:`4386`) - -#. `@bjlittle`_ dropped support for ``Python 3.7``, as per the `NEP-29`_ - backwards compatibility and deprecation policy schedule. (:pull:`4481`) - - -📚 Documentation -================ - -#. `@rcomer`_ updated the "Plotting Wind Direction Using Quiver" Gallery - example. (:pull:`4120`) - -#. `@trexfeathers`_ included `Iris GitHub Discussions`_ in - :ref:`get involved `. (:pull:`4307`) - -#. `@wjbenfold`_ improved readability in :ref:`userguide interpolation - section `. (:pull:`4314`) - -#. `@wjbenfold`_ added explanation about the absence of | operator for - :class:`iris.Constraint` to :ref:`userguide loading section - ` and to api reference documentation. (:pull:`4321`) - -#. `@trexfeathers`_ added more detail on making `iris-test-data`_ available - during :ref:`developer_running_tests`. (:pull:`4359`) - -#. `@lbdreyer`_ added a section to the release documentation outlining the role - of the :ref:`release_manager`. (:pull:`4413`) - -#. `@trexfeathers`_ encouraged contributors to include type hinting in code - they are working on - :ref:`code_formatting`. (:pull:`4390`) - -#. `@wjbenfold`_ updated Cartopy documentation links to point to the renamed - :class:`cartopy.mpl.geoaxes.GeoAxes`. (:pull:`4464`) - -#. `@wjbenfold`_ clarified behaviour of :func:`iris.load` in :ref:`userguide - loading section `. (:pull:`4462`) - -#. `@bjlittle`_ migrated readthedocs to use mambaforge for `faster documentation building`_. - (:pull:`4476`) - -#. `@wjbenfold`_ contributed `@alastair-gemmell`_'s :ref:`step-by-step guide to - contributing to the docs ` to the docs. - (:pull:`4461`) - -#. `@pp-mo`_ improved and corrected docstrings of - :class:`iris.analysis.PointInCell`, making it clear what is the actual - calculation performed. (:pull:`4548`) - -#. `@pp-mo`_ removed reference in docstring of - :class:`iris.analysis.UnstructuredNearest` to the obsolete (deprecated) - :class:`iris.experimental.regrid.ProjectedUnstructuredNearest`. - (:pull:`4548`) - - -💼 Internal -=========== - -#. `@trexfeathers`_ set the linkcheck to ignore - http://www.nationalarchives.gov.uk/doc/open-government-licence since this - always works locally, but never within CI. (:pull:`4307`) - -#. `@wjbenfold`_ netCDF integration tests now skip ``TestConstrainedLoad`` if - test data is missing (:pull:`4319`) - -#. `@wjbenfold`_ excluded ``Good First Issue`` labelled issues from being - marked stale. (:pull:`4317`) - -#. `@tkknight`_ added additional make targets for reducing the time of the - documentation build including ``html-noapi`` and ``html-quick``. - Useful for development purposes only. For more information see - :ref:`contributing.documentation.building` the documentation. (:pull:`4333`) - -#. `@rcomer`_ modified the ``animation`` test to prevent it throwing a warning - that sometimes interferes with unrelated tests. (:pull:`4330`) - -#. `@rcomer`_ removed a now redundant workaround in :func:`~iris.plot.contourf`. - (:pull:`4349`) - -#. `@trexfeathers`_ refactored :mod:`iris.experimental.ugrid` into sub-modules. - (:pull:`4347`). - -#. `@bjlittle`_ enabled the `sort-all`_ `pre-commit`_ hook to automatically - sort ``__all__`` entries into alphabetical order. (:pull:`4353`) - -#. `@rcomer`_ modified a NetCDF saver test to prevent it triggering a numpy - deprecation warning. (:issue:`4374`, :pull:`4376`) - -#. `@akuhnregnier`_ removed addition of period from - :func:`~iris.analysis.cartography.wrap_lons` and updated affected tests - using ``assertArrayAllClose`` following :issue:`3993`. - (:pull:`4421`) - -#. `@rcomer`_ updated some tests to work with Matplotlib v3.5. (:pull:`4428`) - -#. `@rcomer`_ applied minor fixes to some regridding tests. (:pull:`4432`) - -#. `@lbdreyer`_ corrected the license PyPI classifier. (:pull:`4435`) - -#. `@aaronspring `_ exchanged ``dask`` with - ``dask-core`` in testing environments reducing the number of dependencies - installed for testing. (:pull:`4434`) - -#. `@wjbenfold`_ prevented github action runs in forks (:issue:`4441`, - :pull:`4444`) - -#. `@wjbenfold`_ fixed tests for hybrid formulae that weren't being found by - nose (:issue:`4431`, :pull:`4450`) - -.. comment - Whatsnew author names (@github name) in alphabetical order. Note that, - core dev names are automatically included by the common_links.inc: - -.. _@aaronspring: https://github.com/aaronspring -.. _@akuhnregnier: https://github.com/akuhnregnier -.. _@bsherratt: https://github.com/bsherratt -.. _@larsbarring: https://github.com/larsbarring -.. _@pdearnshaw: https://github.com/pdearnshaw -.. _@SimonPeatman: https://github.com/SimonPeatman -.. _@tinyendian: https://github.com/tinyendian - -.. comment - Whatsnew resources in alphabetical order: - -.. _NEP-29: https://numpy.org/neps/nep-0029-deprecation_policy.html -.. _Metarelate: http://www.metarelate.net/ -.. _UGRID: http://ugrid-conventions.github.io/ugrid-conventions/ -.. _iris-emsf-regrid: https://github.com/SciTools-incubator/iris-esmf-regrid -.. _faster documentation building: https://docs.readthedocs.io/en/stable/guides/conda.html#making-builds-faster-with-mamba -.. _sort-all: https://github.com/aio-libs/sort-all diff --git a/docs/src/whatsnew/latest.rst b/docs/src/whatsnew/latest.rst new file mode 120000 index 0000000000..56aebe92dd --- /dev/null +++ b/docs/src/whatsnew/latest.rst @@ -0,0 +1 @@ +dev.rst \ No newline at end of file