[sedatk]

Yes, they are listed here: http://ffmpeg.org/index.html#pr4.4

[ggm]

If anyone is an AV guru and wants to blog highlights, I for one would love to read it. I use ffmpeg blind by recipes, I'd love an industry insider commentary on the good bits

[astrange]

Mostly it plays more file formats from old games. I guess someone's been doing preservation work.

[refulgentis]

AV1 decoder and SVT-AV1 encoding (essentially, AV1 for broadcast) jumped out to my eye, nothing else tbh