Installation Updates Pyproj now handles all the transformations and therefore the PROJ header files are no longer explicitly required by Cartopy. Shapely 2.0 is not compatible with this release of Cartopy, and thus Shapely must be pinned 0.18 by @neutrinoceros in https://github.com/SciTools/cartopy/pull/1957 MNT: Update the natural earth test by @greglucas in https://github.com/SciTools/cartopy/pull/1962 CI: Fix min dependency build by switching to Linux by @greglucas in https://github.com/SciTools/cartopy/pull/1963 Parametrize projection test images by @QuLogic in https://github.com/SciTools/cartopy/pull/1964 FIX: Calculate bbox for pcolormesh by @greglucas in https://github.com/SciTools/cartopy/pull/1958 CI: Avoid newer openssl version due to WMTS tests by @greglucas in https://github.com/SciTools/cartopy/pull/1977 Rename master branch to main by @QuLogic in https://github.com/SciTools/cartopy/pull/1976 fix title of projections.rst by @mathause in https://github.com/SciTools/cartopy/pull/1983 FIX: Add clip limits to Nightshade floating point calculations by @greglucas in https://github.com/SciTools/cartopy/pull/1989 TST: Increase dtype of sample data calculations by @greglucas in https://github.com/SciTools/cartopy/pull/1994 ENH: Allow a single geometry in add_geometries by @greglucas in https://github.com/SciTools/cartopy/pull/1999 Minimum Python 3.8 by @greglucas in https://github.com/SciTools/cartopy/pull/1990 Flake8 updating by @greglucas in https://github.com/SciTools/cartopy/pull/1991 MNT: Remove convert_path from setup script by @greglucas in https://github.com/SciTools/cartopy/pull/2027 API: GH #2013 make regrid arguments, docstring consistent by @ellequelle in https://github.com/SciTools/cartopy/pull/2014 TST: Removing unnecessary cleanup decorator by @greglucas in https://github.com/SciTools/cartopy/pull/2023 TST: Force an orientation in the lakes shapereader test by @greglucas in https://github.com/SciTools/cartopy/pull/2028 Revert "CI: Avoid newer openssl version due to WMTS tests" by @greglucas in https://github.com/SciTools/cartopy/pull/2038 examples: define 'sample_data' for all examples by @phil-blain in https://github.com/SciTools/cartopy/pull/2044 Explicitly calling numpy asanyarray over the inputs. by @axnsantana in https://github.com/SciTools/cartopy/pull/2050 FIX: setup.py should output "... 8.0.0 or later" if proj is missing or too old by @weatherfrog in https://github.com/SciTools/cartopy/pull/1992 Remove use of setuptools_scm_git_archive by @dopplershift in https://github.com/SciTools/cartopy/pull/2057 TST: Change testing method for tolerances by @greglucas in https://github.com/SciTools/cartopy/pull/2056 Fix image tests by @dopplershift in https://github.com/SciTools/cartopy/pull/2058 Replace _autoscaleX_on with get_autoscalex_on() in GeoAxes by @holzschu in https://github.com/SciTools/cartopy/pull/2054 docs: fix simple typo, noticable -> noticeable by @timgates42 in https://github.com/SciTools/cartopy/pull/2061 Additional support for LINZ Maps Tiles by @aluthfian in https://github.com/SciTools/cartopy/pull/2048 Use contextlib.ExitStack in more places by @QuLogic in https://github.com/SciTools/cartopy/pull/2070 MNT: Change map_projection to projection for Axes creation by @greglucas in https://github.com/SciTools/cartopy/pull/1980 Pyproj geodesic trace by @greglucas in https://github.com/SciTools/cartopy/pull/2069 Fix Axes clearing with Matplotlib 3.6+ by @QuLogic in https://github.com/SciTools/cartopy/pull/2071 FIX: change deprecated map_projection in test suite by @greglucas in https://github.com/SciTools/cartopy/pull/2073 TST: Update test path search and pytest deprecations by @greglucas in https://github.com/SciTools/cartopy/pull/2075 Add functionality for correct transforms in ax.annotate by @abrammer in https://github.com/SciTools/cartopy/pull/2065 Calculate vertical coord, even if not explicitely requested by @guziy in https://github.com/SciTools/cartopy/pull/2077 FIX: Allow values less than -180 to be wrapped too by @greglucas in https://github.com/SciTools/cartopy/pull/1998 DOC: What's new for v0.21 release by @greglucas in https://github.com/SciTools/cartopy/pull/2074 New Contributors @georgemccabe made their first contribution in https://github.com/SciTools/cartopy/pull/1894 @ludwigVonKoopa made their first contribution in https://github.com/SciTools/cartopy/pull/1906 @mcuntz made their first contribution in https://github.com/SciTools/cartopy/pull/1753 @gpotter2 made their first contribution in https://github.com/SciTools/cartopy/pull/1941 @neutrinoceros made their first contribution in https://github.com/SciTools/cartopy/pull/1957 @mathause made their first contribution in https://github.com/SciTools/cartopy/pull/1983 @ellequelle made their first contribution in https://github.com/SciTools/cartopy/pull/2014 @phil-blain made their first contribution in https://github.com/SciTools/cartopy/pull/2044 @axnsantana made their first contribution in https://github.com/SciTools/cartopy/pull/2050 @weatherfrog made their first contribution in https://github.com/SciTools/cartopy/pull/1992 @holzschu made their first contribution in https://github.com/SciTools/cartopy/pull/2054 @aluthfian made their first contribution in https://github.com/SciTools/cartopy/pull/2048 @abrammer made their first contribution in https://github.com/SciTools/cartopy/pull/2065 @guziy made their first contribution in https://github.com/SciTools/cartopy/pull/2077 Full Changelog: https://github.com/SciTools/cartopy/compare/v0.20.0...v0.21.0