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Move the 4:0:0 grayscale comment from Added to the Changed. #1477

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@vrabaud vrabaud commented Jul 26, 2023

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LGTM.

@@ -76,6 +75,7 @@ List of incompatible ABI changes in this release:
memory allocation failures.
* avifReadImage(), avifJPEGRead() and avifPNGRead() now remove the trailing zero
byte from read XMP chunks, if any. See avifImageFixXMP().
* Requesting lossless 4:0:0 on a grayscale input now outputs a grayscale AVIF.
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I now think this can be considered a new feature. With previous releases, avifenc -y 400 -l outputs a lossless 4:4:4 image, so it isn't lossless 4:0:0. So this entry should be moved back to the Added section.

Of course, we can consider that as a bug and then this change will be a bug fix, suitable for the Changed section.

In any case, the new description is clearer than the old one.

@vrabaud vrabaud closed this Jul 27, 2023
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vrabaud commented Jul 27, 2023

It is indeed a new feature.

@vrabaud vrabaud deleted the 400 branch July 27, 2023 12:30
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