• HTTP requests will now try to establish HTTP/2 connections if the functionality is advertised by an HTTP server, using the Upgrade header. Disable this by building without the http2 feature on our dash-mpd-rs dependency.
• ffmpeg muxing support supports the use of the DASHMPD_PERSIST_FILES environment variable to retain the temporary files created during muxing.
• The ffmpeg demuxer concat helper uses absolute paths in the ffconcat file, rather than relative paths, because ffmpeg interprets relative paths with respect to the location of the ffconcat file, rather than with respect to CWD. Reported by @Cocalus.