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d4ef93150f
As a general rule I think we should acknowledge when significant contribtions come from outside the core team. We know the core team does a lot of work (thank you!) but it's not always obvious when significant contributions come from outside the core team. In the old change log, we had ACKs via `[radarhere]` syntax which I miss. I don't expect we'll start using the old change log again but maybe we can make a note in the release notes to include such ACKs as needed and appropriate.
88 lines
3.0 KiB
ReStructuredText
88 lines
3.0 KiB
ReStructuredText
11.3.0
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------
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Security
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========
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:cve:`2025-48379`: Write buffer overflow on BCn encoding
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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There is a heap buffer overflow when writing a sufficiently large (>64k encoded with
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default settings) image in the DDS format due to writing into a buffer without checking
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for available space.
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This only affects users who save untrusted data as a compressed DDS image.
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* Unclear how large the potential write could be. It is likely limited by process
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segfault, so it's not necessarily deterministic. It may be practically unbounded.
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* Unclear if there's a restriction on the bytes that could be emitted. It's likely that
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the only restriction is that the bytes would be emitted in chunks of 8 or 16.
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This was introduced in Pillow 11.2.0 when the feature was added.
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Deprecations
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============
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Image.fromarray mode parameter
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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The ``mode`` parameter in :py:meth:`~PIL.Image.fromarray()` has been deprecated. The
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mode can be automatically determined from the object's shape and type instead.
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Saving I mode images as PNG
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^^^^^^^^^^^^^^^^^^^^^^^^^^^
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In order to fit the 32 bits of I mode images into PNG, when PNG images can only contain
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at most 16 bits for a channel, Pillow has been clipping the values. Rather than quietly
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changing the data, this is now deprecated. Instead, the image can be converted to
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another mode before saving::
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from PIL import Image
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im = Image.new("I", (1, 1))
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im.convert("I;16").save("out.png")
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Other changes
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=============
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Added QOI saving
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^^^^^^^^^^^^^^^^
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Support has been added for saving QOI images. ``colorspace`` can be used to specify the
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colorspace as sRGB with linear alpha, e.g. ``im.save("out.qoi", colorspace="sRGB")``.
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By default, all channels will be linear.
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Support using more screenshot utilities with ImageGrab on Linux
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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:py:meth:`~PIL.ImageGrab.grab` is now able to use GNOME Screenshot, grim or Spectacle
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on Linux in order to take a snapshot of the screen.
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Do not build against libavif < 1
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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Pillow only supports libavif 1.0.0 or later. In order to prevent errors when building
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from source, if a user happens to have an earlier libavif on their system, Pillow will
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now ignore it.
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AVIF support in wheels
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^^^^^^^^^^^^^^^^^^^^^^
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Support for reading and writing AVIF images is now included in Pillow's wheels, except
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for Windows ARM64 and iOS. libaom is available as an encoder and dav1d as a decoder.
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(Thank you Frankie Dintino and Andrew Murray!)
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iOS
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^^^
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Pillow now provides wheels that can be used on iOS ARM64 devices, and on the iOS
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simulator on ARM64 and x86_64. Currently, only Python 3.13 wheels are available.
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(Thank you Russell Keith-Magee and Andrew Murray!)
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Python 3.14 beta
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^^^^^^^^^^^^^^^^
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To help other projects prepare for Python 3.14, wheels are now built for the
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3.14 beta as a preview. This is not official support for Python 3.14, but rather
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an opportunity for you to test how Pillow works with the beta and report any
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problems.
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