12.1.0

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]