When the publisher or source of a stream is offline, the server can be
configured to fill gaps in the stream with a video that is played on
repeat until a publisher comes back online. This allows readers to stay
connected regardless of the state of the stream. The offline video and
any future online stream are concatenated without decoding or
re-encoding packets, using the original codec.
This is a new authentication system that covers all the features exposed by the server, including playback, API, metrics and PPROF, improves internal authentication by adding permissions, improves HTTP-based authentication by adding the ability to exclude certain actions from being authenticated, adds an additional method (JWT-based authentication).
