Pillow Versions Save

https://pillow.readthedocs.io/en/stable/releasenotes/9.1.0.html

Changes

• Add support for multiple component transformation to JPEG2000 #5500 [@scaramallion]
• Fix loading FriBiDi on Alpine #6165 [@nulano]
• Added setting for converting GIF P frames to RGB #6150 [@radarhere]
• Allow 1 mode images to be inverted #6034 [@radarhere]
• Raise ValueError when trying to save empty JPEG #6159 [@radarhere]
• Always save TIFF with contiguous planar configuration #5973 [@radarhere]
• Connected discontiguous polygon corners #5980 [@radarhere]
• Corrected memory allocation #5958 [@radarhere]
• Ensure Tkinter hook is activated for getimage() #6032 [@radarhere]
• Fixed comparison warnings #5970 [@radarhere]
• Use screencapture arguments to crop on macOS #6152 [@radarhere]
• Do not mark L mode JPEG as 1 bit in PDF #6151 [@radarhere]
• Fixed saving L mode GIF with background as WebP #6147 [@radarhere]
• Do not expand GIF during n_frames #6148 [@radarhere]
• Added support for reading I;16R TIFF images #6132 [@radarhere]
• If an error occurs after creating a file, remove the file #6134 [@radarhere]
• decode() should return -1 when finished #6130 [@radarhere]
• Fixed calling DisplayViewer or XVViewer without a title #6136 [@radarhere]
• Retain RGBA transparency when saving multiple GIF frames #6128 [@radarhere]
• Save additional ICO frames with other bit depths if supplied #6122 [@radarhere]
• Handle EXIF data truncated to just the header #6124 [@radarhere]
• Added support for reading BMP images with RLE8 compression #6102 [@radarhere]
• Support Python distributions where _tkinter is compiled in #6006 [@lukegb]
• Added WebP default duration of zero when saving #6140 [@radarhere]
• Added support for PPM arbitrary maxval #6119 [@radarhere]
• Removed unused variable #6137 [@radarhere]
• libwebp 1.2.2 fixed endian bugs #5984 [@radarhere]
• Added BigTIFF reading #6097 [@radarhere]
• GIF seek performance improvements #6077 [@radarhere]
• Removed load_prepare nearly identical to ImageFile load_prepare #6116 [@radarhere]
• When converting, clip I;16 to be unsigned, not signed #6112 [@radarhere]
• Check if self.im is not None #6108 [@radarhere]
• Fixed loading L mode GIF with transparency #6086 [@radarhere]
• Ensure cleanup() is called for PyEncoders #6096 [@radarhere]
• Various _accept changes #6092 [@radarhere]
• Improved handling of PPM header #5121 [@Piolie]
• Reset size when seeking away from "Large Thumbnail" MPO frame #6101 [@radarhere]
• Replace requirements.txt with extras #6072 [@hugovk]
• Added PyEncoder and support BLP saving #6069 [@radarhere]
• Handle TGA images with packets that cross scan lines #6087 [@radarhere]
• Added FITS reading #6056 [@radarhere]
• Added rawmode argument to Image.getpalette() #6061 [@radarhere]
• Fixed BUFR, GRIB and HDF5 stub saving #6071 [@radarhere]
• Changed quantize default dither to FLOYDSTEINBERG #6068 [@radarhere]
• Do not automatically remove temporary ImageShow files on Unix #6045 [@radarhere]
• Correctly read JPEG compressed BLP images #4685 [@Meithal]
• Merged _MODE_CONV typ into ImageMode as typestr #6057 [@radarhere]
• Consider palette size when converting and in getpalette() #6060 [@radarhere]
• Added enums #5954 [@radarhere]
• Ensure image is opaque after converting P to PA with RGB palette #6052 [@radarhere]
• Replaced absolute PIL import with relative import #6058 [@radarhere]
• Attach RGBA palettes from putpalette() when suitable #6054 [@radarhere]
• Simplified code #6053 [@radarhere]
• Clarify code and comments #6042 [@radarhere]
• Added get_photoshop_blocks() to parse Photoshop TIFF tag #6030 [@radarhere]
• Drop excess values in BITSPERSAMPLE #6041 [@mikhail-iurkov]
• Issue warning if Raqm layout is requested, but Raqm is not available #6035 [@nulano]
• Added unpacker from RGBA;15 to RGB #6031 [@radarhere]

Dependencies

• Updated freetype to 2.12 #6169 [@radarhere]
• Updated harfbuzz to 4.2.0 #6164 [@radarhere]
• Updated zlib to 1.2.12 #6160 [@radarhere]
• Updated harfbuzz to 4.1.0 #6153 [@radarhere]
• Updated harfbuzz to 4.0.1 #6125 [@radarhere]
• Updated harfbuzz to 4.0.0 #6104 [@radarhere]
• Updated harfbuzz to 3.4.0 #6048 [@radarhere]
• Updated lcms2 to 2.13.1 #6017 [@radarhere]
• Updated harfbuzz to 3.3.2 #6029 [@radarhere]
• Updated libimagequant to 4.0.0 #6014 [@radarhere]

Documentation

• Add musllinux wheels to 9.1.0 release notes #6168 [@hugovk]
• Document "keep" for JPEG save quality option #6135 [@carandraug]
• Document support for RLE8 reading in BMP #6155 [@radarhere]
• Removed period before colon #6143 [@radarhere]
• Added merging images example #6129 [@radarhere]
• decode() should return -1 when finished #6117 [@radarhere]
• Improved codec documentation #6094 [@radarhere]
• Document alternatives to accessing individual pixels #6099 [@radarhere]
• Document that histogram() uses 256 bins per channel #6106 [@radarhere]
• Added release notes for #6069 #6095 [@radarhere]
• Improved ImageShow documentation #6078 [@radarhere]
• Corrected docstring #6081 [@radarhere]
• Corrected JPEG subsampling documentation #6067 [@radarhere]
• Use --no-binary when installing from source #6066 [@radarhere]
• macOS: 'brew install openjpeg' for JPEG2000 support #6065 [@hugovk]
• Updated comment #6063 [@radarhere]
• Updated macOS tested Pillow versions #6038 [@radarhere]
• Fix return in docs #6040 [@hugovk]
• Corrected sentence #6016 [@radarhere]

Testing

• Added pytest-timeout to AppVeyor #6157 [@radarhere]
• Do not always require ctypes in tests #6141 [@radarhere]
• Updated setup-python, checkout and upload-artifact actions to v3 #6111 [@radarhere]
• pre-commit autoupdate --freeze #6109 [@radarhere]
• Updated Python for doccheck to 3.10 #6098 [@radarhere]
• Updated libjpeg-turbo to 2.1.3 #6091 [@radarhere]
• Enable heap verification without gflags #6089 [@radarhere]
• Test that n_frames and is_animated do not change GIF #6080 [@radarhere]
• Added Gentoo to Docker jobs #6088 [@radarhere]
• Removed duplicate test #6082 [@radarhere]
• Updated checks that no warnings were raised #6076 [@radarhere]
• Updated comment #6063 [@radarhere]
• Replaced test image to avoid copyrighted color space #6062 [@radarhere]
• Only skip test if libimagequant is earlier than 4 on ppc64le #6050 [@radarhere]
• Added CentOS Stream 9 #6036 [@radarhere]
• Upgraded AppVeyor Python 3.10 image to Visual Studio 2022 #6026 [@radarhere]

https://pillow.readthedocs.io/en/stable/releasenotes/9.0.1.html

Changes

• In show_file, use os.remove to remove temporary images. CVE-2022-24303 #6010 [@radarhere, @hugovk]
• Restrict builtins within lambdas for ImageMath.eval. CVE-2022-22817 #6009 [radarhere]

https://pillow.readthedocs.io/en/stable/releasenotes/9.0.0.html

Changes

• Restrict builtins for ImageMath.eval() #5923 [@radarhere]
• Ensure JpegImagePlugin stops at the end of a truncated file #5921 [@radarhere]
• Fixed ImagePath.Path array handling #5920 [@radarhere]
• Remove consecutive duplicate tiles that only differ by their offset #5919 [@radarhere]
• Removed redundant part of condition #5915 [@radarhere]
• Explicitly enable strip chopping for large uncompressed TIFFs #5517 [@kmilos]
• Use the Windows method to get TCL functions on Cygwin #5807 [@DWesl]
• Changed error type to allow for incremental WebP parsing #5404 [@radarhere]
• Improved I;16 operations on big endian #5901 [@radarhere]
• Ensure that BMP pixel data offset does not ignore palette #5899 [@radarhere]
• Limit quantized palette to number of colors #5879 [@radarhere]
• Use latin1 encoding to decode bytes #5870 [@radarhere]
• Fixed palette index for zeroed color in FASTOCTREE quantize #5869 [@radarhere]
• When saving RGBA to GIF, make use of first transparent palette entry #5859 [@radarhere]
• Pass SAMPLEFORMAT to libtiff #5848 [@radarhere]
• Added rounding when converting P and PA #5824 [@radarhere]
• Improved putdata() documentation and data handling #5910 [@radarhere]
• Exclude carriage return in PDF regex to help prevent ReDoS #5912 [@radarhere]
• Image.NONE is only used for resampling and dithers #5908 [@radarhere]
• Fixed freeing pointer in ImageDraw.Outline.transform #5909 [@radarhere]
• Add Tidelift alignment action and badge #5763 [@aclark4life]
• Replaced further direct invocations of setup.py #5906 [@radarhere]
• Added ImageShow support for xdg-open #5897 [@m-shinder]
• Fixed typo #5902 [@radarhere]
• Switched from deprecated "setup.py install" to "pip install ." #5896 [@radarhere]
• Support 16-bit grayscale ImageQt conversion #5856 [@cmbruns]
• Fixed raising OSError in _safe_read when size is greater than SAFEBLOCK #5872 [@radarhere]
• Convert subsequent GIF frames to RGB or RGBA #5857 [@radarhere]
• WebP: Fix memory leak during decoding on failure #5798 [@ilai-deutel]
• Do not prematurely return in ImageFile when saving to stdout #5665 [@infmagic2047]
• Added support for top right and bottom right TGA orientations #5829 [@radarhere]
• Corrected ICNS file length in header #5845 [@radarhere]
• Block tile TIFF tags when saving #5839 [@radarhere]
• Added line width argument to ImageDraw polygon #5694 [@radarhere]
• Do not redeclare class each time when converting to NumPy #5844 [@radarhere]
• Only prevent repeated polygon pixels when drawing with transparency #5835 [@radarhere]
• Fix pushes_fd method signature #5833 [@hoodmane]
• Add support for pickling TrueType fonts #5826 [@hugovk]
• Only prefer command line tools SDK on macOS over default MacOSX SDK #5828 [@radarhere]
• Fix compilation on 64-bit Termux #5793 [@landfillbaby]
• Replace 'setup.py sdist' with '-m build --sdist' #5785 [@hugovk]
• Use declarative package configuration #5784 [@hugovk]
• Use title for display in ImageShow #5788 [@radarhere]
• Fix for PyQt6 #5775 [@hugovk]
• Rename master to main #5770 [@hugovk]

Dependencies

• Updated winbuild libimagequant to 2.17.0 #5916 [@radarhere]
• Updated harfbuzz to 3.2.0 #5883 [@radarhere]
• Updated libimagequant to 2.17.0 #5876 [@radarhere]
• Updated freetype to 2.11.1 #5867 [@radarhere]
• Updated harfbuzz to 3.1.2 #5853 [@radarhere]
• Updated harfbuzz to 3.1.1 #5820 [@radarhere]
• Updated harfbuzz to 3.1.0 #5808 [@radarhere]

Documentation

• CVEs TBD #5924 [@radarhere]
• Added release notes for #5919, #5920 and #5921 #5922 [@radarhere]
• Updated copyright year #5918 [@radarhere]
• Added release notes for pillow-wheels#237 #5917 [@radarhere]
• Added release notes for #5897 #5905 [@radarhere]
• Added PIL + pathlib Tutorial #5862 [@kolibril13]
• Dedicate the next release to Fredrik Lundh #5885 [@hugovk]
• Added release notes for #5857 #5874 [@radarhere]
• Improved example code #5866 [@radarhere]
• Improved explanation of fromarray "mode" parameter #5849 [@radarhere]
• Documentation for #5829 and #5694 #5847 [@radarhere]
• Updated macOS tested Pillow versions #5822 [@radarhere]
• Docs: Remove docutils pin #5821 [@hugovk]
• Changed URLs to https #5796 [@radarhere]
• Added release notes for #5788 #5792 [@radarhere]
• Update expected Pillow 10 release date: 2023-07-01 #5779 [@hugovk]
• Document #5788: "Use title for display" #5790 [@nulano]
• Improved image lifecycle documentation #5773 [@radarhere]
• Docs: No security updates in 8.4.0 #5767 [@hugovk]

Removals

• Drop support for soon-EOL Python 3.6 #5768 [@hugovk]
• Remove support for FreeType 2.7 and older #5777 [@hugovk]
• Removed deprecated PILLOW_VERSION, Image.show command parameter, Image._showxv and ImageFile.raise_ioerror #5776 [@radarhere]

Testing

• Added sys import #5913 [@radarhere]
• Do not compare properties to themselves #5907 [@radarhere]
• GHA: Still use macos-latest for non-PyPy builds #5888 [@radarhere]
• GHA: Use macos-10.15 to fix build #5886 [@hugovk]
• GHA: Add workflow_dispatch to enable manually triggering builds #5861 [@hugovk]
• Added context managers #5851 [@radarhere]
• Updated libjpeg-turbo to 2.1.2 #5841 [@radarhere]
• GHA: Use actions/setup-python's pip cache #5840 [@hugovk]
• Removed setuptools install from AppVeyor #5823 [@radarhere]
• Added Fedora 35 #5806 [@radarhere]
• Test Python 3.10.0 final on AppVeyor #5805 [@hugovk]
• Test PyPy3.8 #5778 [@hugovk]
• CI: Install pytest-timeout for MinGW CI #5780 [@hugovk]
• Removed Fedora 33 docker job #5766 [@radarhere]

https://pillow.readthedocs.io/en/stable/releasenotes/8.4.0.html

Changes

• Don't use bitmap glyphs when drawing text with stroker #5761 [@nulano]
• Make TIFF strip size configurable #5744 [@kmilos]
• Fixed Python errors when saving a (0, 0) TIFF image #5750 [@radarhere]
• Prefer global transparency in GIF when replacing with background color #5756 [@radarhere]
• Update winbuild libimagequant to 2.16.0 #5727 [@nulano]
• Accept methods cleanup #5724 [@radarhere]
• Remove raqm.cmake #5722 [@nulano]
• Moved _info function into docstring #5710 [@radarhere]
• Added "exif" keyword argument to TIFF saving #5575 [@radarhere]
• Copy Python palette to new image in quantize() #5696 [@radarhere]
• Read ICO AND mask from end #5667 [@radarhere]
• Actually check the framesize in FliDecode.c #5659 [@wiredfool]

Dependencies

• Upgrade Raqm to 0.7.2 #5736 [@nulano]
• Updated Ghostscript to 9.55.0 #5735 [@radarhere]
• Updated fribidi to 1.0.11 #5732 [@radarhere]
• Updated libimagequant to 2.16.0 #5726 [@radarhere]
• Updated harfbuzz to 3.0.0 #5720 [@radarhere]
• Updated harfbuzz to 2.9.1 #5705 [@radarhere]

Documentation

• Updated capitalization #5746 [@radarhere]
• Updated macOS tested Pillow versions #5737 [@radarhere]
• Updated macOS tested Pillow versions #5719 [@radarhere]
• Docs: Update CI targets table #5713 [@hugovk]
• Updated docstring #5708 [@radarhere]
• Docs: Temporarily pin docutils to fix bullets in sphinx_rtd_theme #5704 [@hugovk]

Testing

• Delete tidelift.yml #5765 [@hugovk]
• Test Python 3.10.0 final on GitHub Actions #5748 [@hugovk]
• [pre-commit.ci] pre-commit autoupdate #5747 [@pre-commit-ci]
• Add CentOS Stream 8 #5714 [@hugovk]
• Improve the fuzzer wrt. the current atheris version #5688 [@Google-Autofuzz]
• CI: Split MINGW to own workflow, remove redundant job #5709 [@hugovk]
• Install numpy on Python 3.10 #5702 [@radarhere]

https://pillow.readthedocs.io/en/stable/releasenotes/8.3.2.html

Security

• CVE-2021-23437 Raise ValueError if color specifier is too long [hugovk, radarhere]

• Fix 6-byte OOB read in FliDecode [wiredfool]

Python 3.10 wheels

• Add support for Python 3.10 #5569, #5570 [hugovk, radarhere]

Fixed regressions

• Ensure TIFF RowsPerStrip is multiple of 8 for JPEG compression #5588 [kmilos, radarhere]

• Updates for ImagePalette channel order #5599 [radarhere]

• Hide FriBiDi shim symbols to avoid conflict with real FriBiDi library #5651 [nulano]

https://pillow.readthedocs.io/en/stable/releasenotes/8.3.1.html

Changes

• Catch OSError when checking if fp is sys.stdout #5585 [@radarhere]
• Handle removing orientation from alternate types of EXIF data #5584 [@radarhere]
• Make Image.array take optional dtype argument #5572 [@t-vi]

https://pillow.readthedocs.io/en/stable/releasenotes/8.3.0.html

Changes

• Use snprintf instead of sprintf #5567 [@radarhere]
• Limit TIFF strip size when saving with LibTIFF #5514 [@kmilos]
• Allow ICNS save on all operating systems #4526 [@newpanjing]
• De-zigzag JPEG's DQT when loading; deprecate convert_dict_qtables #4989 [@gofr]
• Do not use background or transparency index for new color #5564 [@radarhere]
• Simplified code #5315 [@radarhere]
• Replaced xml.etree.ElementTree #5565 [@radarhere]
• Corrected border position for P mode in ImageOps.expand() #5562 [@radarhere]
• Moved CVE image to pillow-depends #5561 [@radarhere]
• Added tag data for IFD groups #5554 [@radarhere]
• Improved ImagePalette #5552 [@radarhere]
• Add DDS saving #5402 [@radarhere]
• Improved getxmp() #5455 [@radarhere]
• Convert to float for comparison with float in IFDRational eq #5412 [@radarhere]
• Allow getexif() to access TIFF tag_v2 data #5416 [@radarhere]
• Read FITS image mode and size #5405 [@radarhere]
• Merge parallel horizontal edges in ImagingDrawPolygon #5347 [@radarhere]
• Use transparency behind first GIF frame and when disposing to background #5557 [@radarhere]
• Fixed undefined variable in logging #5556 [@radarhere]
• Avoid unstable nature of qsort in Quant.c #5367 [@radarhere]
• Copy palette to new images in ImageOps expand #5551 [@radarhere]
• Ensure palette string matches RGB mode #5549 [@radarhere]
• Do not modify EXIF of original image instance in exif_transpose() #5547 [@radarhere]
• Fixed default numresolution for small JPEG2000 images #5540 [@radarhere]
• Fixed format warning #5535 [@radarhere]
• Updated declaration to match definition #5534 [@radarhere]
• Added DDS BC5 reading #5501 [@radarhere]
• Raise an error if ImageDraw.textbbox is used without a TrueType font #5510 [@radarhere]
• Added ICO saving in BMP format #5513 [@radarhere]
• Ensure PNG seeks to end of previous chunk at start of load_end #5493 [@radarhere]
• Do not allow TIFF to seek to a past frame #5473 [@radarhere]
• Avoid race condition when displaying images with eog #5507 [@mconst]
• Added specific error messages when ink has incorrect number of bands #5504 [@radarhere]
• Allow converting an image to a numpy array to raise errors #5379 [@radarhere]
• Use METH_NOARGS when no arguments are required #5488 [@radarhere]
• Fixed typo #5505 [@radarhere]
• Added CFAPattern, ExifVersion and FlashpixVersion UNDEFINED tags #5495 [@radarhere]
• Removed DPI rounding from BMP, JPEG and PNG loading #5476 [@radarhere]
• Removed WMF DPI rounding #5470 [@radarhere]
• Remove spikes when drawing thin pieslices #5460 [@xtsm]
• Updated default value for SAMPLESPERPIXEL TIFF tag #5452 [@radarhere]
• HTTP link is not valid (wrong redirect) #5481 [@homm]
• Removed TIFF DPI rounding #5446 [@radarhere]
• Include code in WebP error #5471 [@radarhere]
• Replaced uint16 and uint32 with uint16_t and uint32_t to resolve TIFF deprecations #5458 [@radarhere]
• Do not alter pixels outside mask when drawing text on an image with transparency #5434 [@radarhere]
• Reset handle when seeking backwards in TIFF #5443 [@radarhere]
• Fix build with libraqm < 0.7.0 #5462 [@adrian-the-git]
• Replace sys.stdout with sys.stdout.buffer when saving #5437 [@radarhere]
• Fixed UNDEFINED TIFF tag of length 0 being changed in roundtrip #5426 [@radarhere]
• Fixed bug when checking FreeType2 version if it is not installed #5445 [@radarhere]
• Do not round dimensions when saving PDF #5459 [@radarhere]
• Added ImageOps contain() #5417 [@radarhere]
• Clarified error message #5457 [@radarhere]
• Changed WebP default "method" value to 4 #5450 [@radarhere]
• Switched to saving 1-bit PDFs with DCTDecode #5430 [@radarhere]
• Use bpp from ICO header #5429 [@radarhere]
• Corrected JPEG APP14 transform value #5408 [@radarhere]
• Changed TIFF tag 33723 length to 1 #5425 [@radarhere]
• Changed ImageMorph incorrect mode errors to ValueError #5414 [@radarhere]
• Add EXIF tags specified in EXIF 2.32 #5419 [@gladiusglad]
• Treat previous contents of first GIF frame as transparent #5391 [@radarhere]
• Changed quantize and quantize2 to static #5374 [@radarhere]
• For special image modes, revert default resize resampling to NEAREST #5411 [@radarhere]
• Changed mode for TGA 16-bit palette to BGR;15 #5400 [@radarhere]
• TGA color map entry size is only 1 byte #5396 [@radarhere]
• JPEG2000: Support decoding subsampled RGB and YCbCr images #4996 [@nulano]
• Stop decoding BC1 punchthrough alpha in BC2&3 #4144 [@jansol]
• Added TransferFunction and ReferenceBlackWhite to core TIFF tags #5384 [@radarhere]
• Use zero if GIF background color index is missing #5390 [@radarhere]
• Fixed ensuring that GIF previous frame was loaded #5386 [@radarhere]
• Valgrind fixes #5397 [@wiredfool]
• Use python3 in shebang line #5395 [@radarhere]
• Round down the radius in rounded_rectangle #5382 [@radarhere]
• Fixed reading uncompressed RGB data from DDS #5383 [@radarhere]
• Changed register_open calls to be consistent #5380 [@radarhere]

Dependencies

• Updated libimagequant to 2.15.1 #5492 [@radarhere]
• Updated libimagequant to 2.15.0 #5479 [@radarhere]
• Updated harfbuzz to 2.8.1 #5464 [@radarhere]
• Updated libjpeg-turbo to 2.1.0 #5433 [@radarhere]
• Updated libtiff to 4.3.0 #5421 [@radarhere]

Documentation

• Added release notes #5566 [@radarhere]
• Add Twitter to PyPI project URLs #5563 [@hugovk]
• Modified docstring for GaussianBlur #5539 [@kdpenner]
• Copies of an image do not retain the format #5532 [@radarhere]
• Fix differing background colors in right sidebar in dark mode docs #5515 [@PH-KDX]
• Updated macOS tested Pillow versions #5521 [@radarhere]
• Build docs with sphinx_copybutton and sphinxext.opengraph #5498 [@hugovk]
• Updated badges for wheels #5483 [@radarhere]
• Use python3 #5477 [@radarhere]
• Corrected code references in docstring #5468 [@radarhere]
• Updated tested libtiff versions #5466 [@radarhere]
• Updated macOS tested Pillow versions #5427 [@radarhere]
• Added info about mode when saving ICO for Windows #5423 [@radarhere]
• Add Raspberry Pi OS to platform support #5424 [@thijstriemstra]
• Changed wording to avoid confusion with IMAGING_TYPE_SPECIAL #5410 [@radarhere]
• Fix PDF file format documentation #5399 [@cholojuanito]

Testing

• Corrected comments #5560 [@radarhere]
• Reverse test order for two CI jobs #5542 [@radarhere]
• Fixed errors when running tests in random order #5533 [@radarhere]
• Fix lcms2_static target for msbuild #5522 [@kmilos]
• Removed setuptools version requirement on GHA macOS and Windows #5496 [@radarhere]
• Removed GitHub Actions Ubuntu setuptools version requirement #5482 [@radarhere]
• Corrected errors in restoring sys.stdout in tests #5474 [@radarhere]
• Revert "Fixed Python 3.10 at alpha.7": use 3.10-dev #5456 [@hugovk]
• GHA: Update test-windows for 64-bit PyPy 7.3.4 release #5453 [@nulano]
• Fixed Python 3.10 at alpha.7 #5447 [@radarhere]
• Added Fedora 34 #5451 [@radarhere]
• Updated nasm to 2.15.05 in AppVeyor #5422 [@radarhere]
• Corrected test #5420 [@radarhere]
• Add test for CVE-2021-25292 ReDoS #5393 [@hugovk]
• Removed Fedora 32 docker job #5378 [@radarhere]

https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html

Changes

• Security fixes for 8.2.0 #5377 [@hugovk]
• Move getxmp() to JpegImageFile #5376 [@radarhere]
• Added getxmp() method #5144 [@UrielMaD]
• Compile LibTIFF with CMake on Windows #5359 [@nulano]
• Add ImageShow support for GraphicsMagick #5349 [@latosha-maltba]
• Tiff crash fixes in TiffDecode.c #5372 [@wiredfool]
• Remove redundant check (addition to #5364) #5366 [@kkopachev]
• Do not load transparent pixels from subsequent GIF frames #5333 [@radarhere]
• Use LZW encoding when saving GIF images #5291 [@raygard]
• Set all transparent colors to be equal in quantize() #5282 [@radarhere]
• Allow PixelAccess to use Python int when parsing x and y #5206 [@radarhere]
• Removed Image._MODEINFO #5316 [@radarhere]
• Add preserve_tone option to autocontrast #5350 [@elejke]
• Only import numpy when necessary #5323 [@radarhere]
• Fixed linear_gradient and radial_gradient I and F modes #5274 [@radarhere]
• Add support for reading TIFFs with PlanarConfiguration=2 #5364 [@wiredfool]
• More OSS-Fuzz support #5328 [@wiredfool]
• Do not premultiply alpha when resizing with Image.NEAREST resampling #5304 [@nulano]
• Use quantization method attributes #5353 [@radarhere]
• Dynamically link FriBiDi instead of Raqm #5062 [@nulano]
• Removed build_distance_tables return value #5363 [@radarhere]
• Allow fewer PNG palette entries than the bit depth maximum when saving #5330 [@radarhere]
• Use duration from info dictionary when saving WebP #5338 [@radarhere]
• Improved efficiency when creating GIF disposal images #5326 [@radarhere]
• Stop flattening EXIF IFD into getexif() #4947 [@radarhere]
• Replaced tiff_deflate with tiff_adobe_deflate compression when saving TIFF images #5343 [@radarhere]
• Save ICC profile from TIFF encoderinfo #5321 [@radarhere]
• Moved RGB fix inside ImageQt class #5268 [@radarhere]
• Fix -Wformat error in TiffDecode #5305 [@lukegb]
• Allow alpha_composite destination to be negative #5313 [@radarhere]
• Ensure file is closed if it is opened by ImageQt.ImageQt #5260 [@radarhere]
• Added ImageDraw rounded_rectangle method #5208 [@radarhere]
• Added IPythonViewer #5289 [@radarhere]
• Only draw each rectangle outline pixel once #5183 [@radarhere]
• Use mmap instead of built-in Win32 mapper #5224 [@radarhere]
• Handle PCX images with an odd stride #5214 [@radarhere]
• Only read different sizes for "Large Thumbnail" MPO frames #5168 [@radarhere]

Dependencies

• Updated harfbuzz to 2.8.0 #5334 [@radarhere]

Deprecations

• Deprecated categories #5351 [@radarhere]

Documentation

• Docs: Fix link in release notes #5371 [@hugovk]
• Corrected grammar #5332 [@radarhere]
• Document Raqm/FriBiDi linking changes #5365 [@nulano]
• Deprecated categories #5351 [@radarhere]
• Document quantize method defaults and mode support #5352 [@radarhere]
• Document prerequisites and Python development libraries for Alpine #5361 [@radarhere]
• Listed Debian packages #5360 [@radarhere]
• Contributing docs: Include release notes as needed or appropriate #5357 [@hugovk]
• Updated macOS tested Pillow versions #5354 [@radarhere]
• Added release notes for #4947 #5344 [@radarhere]
• Updated list of TIFF compression methods #5336 [@radarhere]
• Document #5321 #5327 [@radarhere]
• Added link to class and function in release notes #5318 [@radarhere]
• Document license for several fonts #5215 [@radarhere]

Testing

• Fix pytest valgrind warnings #5373 [@wiredfool]
• Updated Ghostscript to 9.54.0 #5368 [@radarhere]
• Increased use of assert_image_equal_tofile #5345 [@radarhere]
• Added test for saving PNG with bits keyword #5331 [@radarhere]
• Updated harfbuzz to 2.8.0 #5334 [@radarhere]
• Add pytest-timeout to CI and requirements.txt #5329 [@wiredfool]
• Fixed unclosed file warning #5325 [@radarhere]
• Updated shell for mkdir commands #5219 [@radarhere]
• Document and add tests for SBIX color font support #5155 [@nulano]

https://pillow.readthedocs.io/en/stable/releasenotes/8.1.2.html

https://pillow.readthedocs.io/en/stable/releasenotes/8.1.1.html