In the Release Announcements section I see this for Apple TV and iOS…
Note: In an upcoming release, the minimum supported version of Plex Media Server will be increased to 1.3.0. Please upgrade your servers
I don’t own an apple device, but I do share with a couple of people who do. Is the version number just a typo, or is there a secret version of the server I need to find to make sure everything works? Plex Media Server 1.12.1.4885 is the latest I seem to have access to. 
This is a warning for people who are still stuck on ancient versions of Plex Server.
These are the release notes for server version 1.3.0 https://forums.plex.tv/discussion/comment/1305852/#Comment_1305852
@OttoKerner said:
These are the release notes for server version 1.3.0
LOL – my bad. Forgot that version numbers go by integers, not decimals. In my mind, the decimal point would make that version 1.03. We’ll now return to our regular programming.
Right? I had to check and re-read as well. I was like, wait, the server is going from 1.1x to 1.3 – when??
With all the features and upgrades… hw transcode and such, I couldn’t imagine sitting way back there, LOL
