Pillow Files

https://pillow.readthedocs.io/en/stable/releasenotes/12.1.0.html

Deprecations

• Deprecate getdata(), in favour of new get_flattened_data() [#9292] [@radarhere]

Documentation

• Specify APNG duration type when opening [#9368] [@radarhere]
• Added release notes for [#9350] [#9366] [@radarhere]
• Update ImageMorph documentation [#9349] [@radarhere]
• Docs: update major bump cadence [#9334] [@hugovk]
• Add release notes for [#9070] [#9320] [@radarhere]
• Updated Ubuntu version [#9306] [@radarhere]
• Update macOS tested Pillow versions [#9265] [@radarhere]

Dependencies

• Update harfbuzz to 12.3.0 [#9355] [@radarhere]
• Update xz to 5.8.2 [#9343] [@radarhere]
• Updated libjpeg-turbo to 3.1.3 [#9333] [@radarhere]
• Updated zlib-ng to 2.3.2 [#9324] [@radarhere]
• Updated libpng to 1.6.53 [#9325] [@radarhere]
• Update actions/checkout action to v6 [#9323] [@renovate[bot]]
• Update dependency mypy to v1.19.0 [#9322] [@renovate[bot]]
• Updated libpng to 1.6.51 [#9305] [@radarhere]
• Updated brotli to 1.2.0 [#9284] [@radarhere]
• Update libimagequant to 4.4.1 [#9301] [@radarhere]
• Update zlib-ng to 2.3.1, except on manylinux2014 aarch64 [#9312] [@radarhere]
• Updated harfbuzz to 12.2.0 [#9289] [@radarhere]
• Update github-actions [#9277] [@renovate[bot]]

Testing

• Replace pre-commit with prek [#9360] [@hugovk]
• Test PyQt6 on Python 3.14 on Windows [#9353] [@radarhere]
• Test 32-bit Windows on Windows Server 2022 [#9345] [@radarhere]
• Correct variable type [#9335] [@radarhere]
• Fix ResourceWarnings in selftest.py [#9332] [@hugovk]
• Fix testing good P mode BMP images [#9319] [@radarhere]
• Test Python 3.15 pre-release [#9331] [@hugovk]
• Test ImageFont.ImageFont, in case freetype2 is not supported [#9287] [@radarhere]
• Add Fedora 43 [#9290] [@radarhere]
• Remove Fedora 41 [#9260] [@radarhere]

Type hints

• Add ImageFile context manager [#9367] [@radarhere]
• Assert fp is not None [#8617] [@radarhere]
• Added return type to ImageFile _close_fp() [#9356] [@radarhere]
• Use different variables for Image and ImageFile instances [#9316] [@radarhere]
• Correct variable type [#9335] [@radarhere]
• Improve type hints [#9317] [@radarhere]
• Use different variables for Image and ImageFile instances [#9268] [@radarhere]
• Added type hints [#9269] [@radarhere]
• Correct getitem return type [#9264] [@radarhere]

Other changes

• Simplify band splitting [#9291] [@radarhere]
• Support saving APNG float durations [#9365] [@radarhere]
• Allow 1 mode images in MorphOp [#9348] [@radarhere]
• Use minimum supported Python version for Lint [#9364] [@radarhere]
• Allow for duplicate font variation styles [#9362] [@radarhere]
• Call parent verify method [#9357] [@radarhere]
• Return LUT from LutBuilder build_default_lut() [#9350] [@radarhere]
• Simplify WebP code [#9329] [@radarhere]
• Use unsigned long for DWORD [#9352] [@radarhere]
• Cast to UINT32 before shifting bits [#9347] [@radarhere]
• [pre-commit.ci] pre-commit autoupdate [#9318] [@pre-commit-ci[bot]]
• Allow window ID to be passed to ImageGrab.grab() on macOS [#9070] [@yankeguo]
• Apply encoder options when saving multiple PNG frames [#9300] [@radarhere]
• Read all non-zero transparency from mode 1 PNG images as 255 [#9282] [@radarhere]
• Support writing IFD, SIGNED_RATIONAL and InkNames TIFF tags [#9276] [@radarhere]
• Remove unused modes [#9275] [@radarhere]
• Correct allocating new color to RGBA palette [#9313] [@radarhere]
• Close image on ImageFont exception [#9304] [@radarhere]
• Reapply "Use macos-latest for iOS arm64 simulator" [#9259] [@radarhere]
• Escape period in pre-commit-config [#9036] [@radarhere]
• Add Apache-2.0 notice to IcoImagePlugin [#8947] [@stefan6419846]
• [pre-commit.ci] pre-commit autoupdate [#9288] [@pre-commit-ci[bot]]
• Simplify code now that I;16* modes are the only IMAGING_TYPE_SPECIAL [#9263] [@radarhere]
• Remove BytesIO from DdsImagePlugin [#9273] [@radarhere]
• Fix ZeroDivisionError in DdsImagePlugin [#9272] [@radarhere]
• Fix warnings [#9257] [@radarhere]