What started in 2008 as a small media server project today has matured into version 1.0. The first public release of Plex Media Server happened two years later in 2010, and it has been growing ever since, now used by milliions of people. The changes rolled into the 1.0 release aren't all that major – certainly nothing more than any other Plex Media Server release we've seen recently – it's the version number change itself that is significant.
Version 1.0 shows Plex's commitment to ship software that no longer has the assumption of being beta, communicating reliability and predictability for customers. I'm a long-time Plex user and now with both iOS and Apple TV client apps it really is a best-in-class product. Many of its features are available for free, though a paid PlexPass is well worth your money if you want to view your content offline or on your mobile devices. Congrats, Plex! Thanks for doing what you do!