What's Changed

• Fixes to HiPS functionality by @astrofrog in #606
• Give each thread its own copy of the WCS in the dask HiPS by @astrofrog in #605

Full Changelog: v0.20.0...v0.21.0

What's Changed

New Features

• Support 32-bit floats in reproject_adaptive by @svank in #588

Bug Fixes

• Fix setting shape which is deprecated, and use reshape() instead by @astrofrog in #586
• Improve accuracy for high-resolution images in reproject_exact by @astrofrog in #589

Other Changes

• Added Python 3.14 CI jobs by @astrofrog in #576
• Add a new Montage accuracy test in ICRS by @astrofrog in #590
• Clean up private/public API by @astrofrog in #591
• Migrate to new astropy-unified theme by @Cadair in #581
• BLD: cleanup manifest template by @neutrinoceros in #599
• Upgrade PyPI CI publishing to use Trusted Publishing by @lmmx in #598
• Enable limited API builds only when building wheels for publishing by @astrofrog in #600
• Fix caplog-related failures in test_reproject_parallel_broadcasting by @astrofrog in #602

New Contributors

• @lmmx made their first contribution in #598

Full Changelog: v0.19.0...v0.20.0

What's Changed

New Features

• Add a way to do reprojection without dumping dask arrays to memory maps and switch default for reproject_interp to not write to memory maps by @astrofrog in #532

Bug Fixes

• Fixes for HiPS functionality by @astrofrog in #562
• Mark tests in TestHIPSDakArray as remote by @olebole in #563
• Fix check for JPEG file as it was too restrictive by @astrofrog in #574
• Fixes to NaN padding in HiPS by @astrofrog in #575

Full Changelog: v0.18.0...v0.19.0

What's Changed

• Refactor HiPS code to separate steps out into separate functions and support trimming of HiPS3D cubes by @astrofrog in #560
• Add brief example of north-aligning an image to quickstart by @jeffjennings in #561

New Contributors

• @jeffjennings made their first contribution in #561

Full Changelog: v0.17.0...v0.18.0

What's Changed

New Features

• Add support for generating HiPS3D data by @astrofrog in #555
• Added ability to load HiPS3D with dask by @astrofrog in #558

Other Changes

• Fix rendering issues with plots in documentation by @astrofrog in #556
• Fix formatting of authors and add @Cadair and @svank by @astrofrog in #559

Full Changelog: v0.16.0...v0.17.0

What's Changed

• Added 2-d HiPS dask array class and fix a number of bugs with HiPS generation by @astrofrog in #554

Full Changelog: v0.15.0...v0.16.0

What's Changed

New Features

• Flag out NaN weights in coadd & allow for weights to have different WCS than data by @keflavich in #474
• Add support for generating HiPS and reprojecting RGB images with AVM metadata by @astrofrog in #509
• Implement parallelization across broadcasted dimensions by @astrofrog in #376
• Allow dask arrays to not be written to memmap by @astrofrog in #543

Bug Fixes

• Fix a bug that caused big-endian dask arrays to not be reprojected correctly by @astrofrog in #487
• Force little endian input for zarr by @olebole in #492
• Support FITS files with distortion maps when given as file name by @svank in #477
• Don't mosaic empty empty slices by @lpsinger in #502
• FIx issue with co-adding with broadcasting with images that have inhomogeneous footprints by @astrofrog in #535
• Fix reprojection of compressed FITS files by @astrofrog in #540
• Fix threads=True option in reproject.hips by @astrofrog in #541
• Add a new keyword argument negative_lon_cdelt to find_optimal_celestial_wcs by @astrofrog in #528

Other Changes

• MNT: Replace ubuntu-20.04 with ubuntu-22.04 by @pllim in #490
• Add py313 and aarch64 to Actions by @Cadair in #494
• Avoid using astropy.utils.isiterable() by @eerovaher in #498
• Bump minimum version of Python to 3.11 and enable limited API builds/wheels by @astrofrog in #506
• Clean up RGB code and API by @astrofrog in #542
• Use APE-14 compliant pixel scale calculation in reproject.hips by @astrofrog in #545
• Pin more oldest dependencies by @astrofrog in #546
• Added a test to make sure that transparent PNGs generate HiPS tiles with transparency preserved by @astrofrog in #548

New Contributors

• @eerovaher made their first contribution in #498

Full Changelog: v0.14.1...v0.15.0

What's Changed

Bug Fixes

• Enforce readonly mode for memmap when reading input array by @olebole in #461
• Fix Continuous Integration folllowing changes in Sunpy 6.0.0 and 6.0.1 by @astrofrog in #472

Other Changes

• MNT: Use hash for Action workflow versions and update if needed by @pllim in #469
• Bump actions/checkout from 4.2.0 to 4.2.2 in the actions group by @dependabot in #476

Full Changelog: v0.14.0...v0.14.1

What's Changed

Bug Fixes

• Support readonly arrays in adaptive by @svank in #452
• Fix bug with artifacts in reproject_to_healpix by @astrofrog in #459

New Features

• Fix multi-threaded reprojection when using Astropy WCS by @astrofrog in #434
• Generalize reproject_and_coadd for N-dimensional data, and add option to specify blank pixel value and progress bar by @keflavich in #351
• Improve performance for large datasets and switch to multi-threading by default by @astrofrog in #443

Documentation

• Reorganized performance docs/tips by @astrofrog in #444

Other Changes

• Don't use --pre on Python 3.12 by @astrofrog in #445
• Bump minimum required version of astropy-healpix by @astrofrog in #446
• Improvements to performance when using dask.distributed by @astrofrog in #447
• Add logging calls and fix a couple of dask-related issues by @astrofrog in #450
• Fix CI following Sunpy 6.0.0 release by @astrofrog in #457
• Add a script to regenerate the aia asdf file and do so by @Cadair in #439
• Fix devdeps CI by @astrofrog in #458
• Performance improvements for interpolation with map_coordinates by @astrofrog in #448

Full Changelog: v0.13.1...v0.14.0

What's Changed

Bug Fixes

• Ensure reproject_and_coadd handles bg-matching with one input image by @svank in #412
• Fixes for mosaic output pixels not covered by inputs by @svank in #413

Documentation

• Updated docstrings for output_projection and shape_out to indicate that any APE-14 WCS is acceptable by @astrofrog in #407

Other Changes

• Add tests for full range of inputs/outputs in healpix functions by @astrofrog in #408
• Fix Cython warnings by @svank in #418
• Fix devdeps job by @astrofrog in #415
• BLD: pin extension-helpers to 1.* following upstream recommendation by @neutrinoceros in #420
• Added sp-repo-review to pre-commit by @astrofrog in #411
• Bump actions/checkout from 2 to 4 by @dependabot in #422
• Bump stefanzweifel/git-auto-commit-action from 4 to 5 by @dependabot in #423
• Add configuration for nightly wheels by @astrofrog in #417
• Fix pre-commit errors by @astrofrog in #429
• Enable testing of wheels on silicon mac by @astrofrog in #428
• Build against Numpy 2.0.0rc1 or later by @astrofrog in #436

New Contributors

• @neutrinoceros made their first contribution in #420
• @dependabot made their first contribution in #422

Full Changelog: v0.13.0...v0.13.1