Add version 2025.01.28 release information.

Author: lisamelton

CHANGELOG.md

@@ -1,5 +1,13 @@
 # Changes to the "[Video Transcoding](https://github.com/lisamelton/video_transcoding)" project
 
+## [2025.01.28](https://github.com/lisamelton/video_transcoding/releases/tag/2025.01.28)
+
+Tuesday, January 28, 2025
+
+* Change the `rc-lookahead` value for the `nvenc-hevc` video mode in `transcode-video.rb` from `32` to `20` per current Nvidia guidelines. A value of `32` is the maximum allowed but it's probably unnecessary.
+* Add ratecontrol code for the `nvenc-av1` video mode which functionally matches that of `nvenc-hevc` mode.
+* Change the `nvenc-av1` video mode `quality` value from `35` to `37`. This will lower output bitrates below that of `nvenc-hevc` mode, a sensible move because AV1 format is supposed to be more size-efficient than HEVC at the same perceived level of quality.
+
 ## [2025.01.24](https://github.com/lisamelton/video_transcoding/releases/tag/2025.01.24)
 
 Friday, January 24, 2025