SermonSpeaker 4.5.3 is a bugfix release which fixes two bugs related to the players. One was that JW Player and Flowplayer didn't pick the correct files under some settings.
An update is recommended.
SermonSpeaker 4.5.2 introduces three new parameters, two related to feed and one to OpenGraph.
SermonSpeaker 4.5.1 fixes some bugs which kept the feed from validating. There was also an issue with the download button for a vimeo video.
SermonSpeaker 4.5.0 is released. It got a rewritten, extensible playerclass, custom books for scriptures and new database fields for audio and video file size.
Important for layouters: The change to the playerclass means you need to adjust how you call it.
SermonSpeaker 4.4.11 fixes a major bug in SermonSpeaker 4.4.10 where frontend editing was broken if AmazonS3 was used. An update is highly recommended if you use this feature.