Use native Pillow v11.3.0 AVIF format#170
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zerolab merged 3 commits intowagtail:mainfrom Jul 15, 2025
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pillow-heif has removed its plugin now that is exists upstream.
zerolab
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Jul 4, 2025
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I would love seeing this merged. As the maintainer for libheif for nixpkgs i would like to upgrade it to 1.20. This causes breakage for pillow-heif. Pillow heif does work if upgraded to 1.0.0 and patched (NixOS/nixpkgs#424448). But Willow seems to only support pillow 0.22 at the moment. |
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@kuflierl you can expect this to land real soon 👍 |
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Approximately when should i expect a new release? I would guess around September following your current release schedule. |
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I am planning to make a release tomorrow. Willow doesn't follow Wagtail's release schedule, so any fixes necessary (like this one) can be released out of band. |
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@kuflierl v1.11 has now been released to PyPI: https://pypi.org/project/Willow/1.11.0/ |
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Supersedes #167
Pillow 11.3.0 does ship with AVIF support libraries included in the wheels at a reasonable file size - building from source is not required anymore.
This allows us to adopt this method, meaning we no longer have to rely on the deprecated support in pillow-heif. As a result that library's version can be unpinned 🎉
IMPORTANT: as a consequence, we do have to raise the minimum version of Pillow. I believe this is fine as only the latest Pillow versions are officially supported.