-https://code.videolan.org/videolan/x264/-/tree/stable/x264-stable.tar.gz (Jan. 2023 version r3106)
-https://bitbucket.org/multicoreware/x265_git/downloads/x265_3.5.tar.gz
-https://ffmpeg.org/releases/ffmpeg-5.1.tar.bz2
-https://github.com/webmproject/libvpx/archive/v1.13.0.tar.gz
-https://code.videolan.org/videolan/dav1d/-/archive/0.7.1/dav1d-0.7.1.tar.gz
+https://www.videolan.org/developers/x264.html (May 2024 version r3191)
+https://bitbucket.org/multicoreware/x265_git/downloads/x265_3.5.tar.gz (snapshot 17122023)
+https://ffmpeg.org/releases/ffmpeg-7.0.tar.xz
+https://github.com/webmproject/libvpx/archive/v1.13.1.tar.gz
+https://code.videolan.org/videolan/dav1d/-/archive/0.5.1/dav1d-0.5.1.tar.gz
+https://gitlab.com/AOMediaCodec/SVT-AV1/-/releases (2.2.1)