Contents: + 

November 10th, 2023, FFmpeg 6.1 "Heaviside"

+    FFmpeg 6.1 "Heaviside", a new +    major release, is now available! Some of the highlights: + 

+    This release had been overdue for at least half a year, but due to constant activity in the repository, +    had to be delayed, and we were finally able to branch off the release recently, before some of the large +    changes scheduled for 7.0 were merged. + 

+    Internally, we have had a number of changes too. The FFT, MDCT, DCT and DST implementation used for codecs +    and filters has been fully replaced with the faster libavutil/tx (full article about it coming soon).
+    This also led to a reduction in the the size of the compiled binary, which can be noticeable in small builds.
+    There was a very large reduction in the total amount of allocations being done on each frame throughout video decoders, +    reducing overhead.
+    RISC-V optimizations for many parts of our DSP code have been merged, with mainly the large decoders being left.
+    There was an effort to improve the correctness of timestamps and frame durations of each packet, increasing the +    accurracy of variable frame rate video. + 

+    Next major release will be version 7.0, scheduled to be released in February. We will attempt to better stick +    to the new release schedule we announced at the start of this year. + 

+    We strongly recommend users, distributors, and system integrators to upgrade unless they use current git master. + 

I hope I didn't forget to mention anything else that was notable. Attached.