A quick post to those that are using FMS, the latest update 4.5.1 is out now, check that out here:
Release notes for that are here (PDF) but to summarize they’ve fixed a bunch of bugs, most seemingly important of correcting issues where 24×7 streaming to HDS or HLS wasn’t working right. That’s good, I’ve seen lots of posts about that kind of thing, core rollover and all that. RTMPE has been improved for protection of RTMP streams, you’ll need the last flash player for that.
All in all, some good improvements and should stabilize a few other items and features of the software. Go grab it and be careful when updating as you have to manually put back your values in your XML files etc. Keep a backup of all files. I cover some of that stuff in one of my latest tutorials on FMSGuru.com actually: