Version 1.13.9.5439
I remember fiddling around with the URL to find the right, undisclosed address for out of date versions, but can’t remember it right now. It has something to do with finding a URL that works, and changing the corresponding number (which is not 1.13, sorry!). Maybe I got it from this post, but can’t be sure. HOWTO DOWNLOAD PREVIOUS PLEX VERSION
I saved a copy of 1.13 to my desktop so I could use it if the server updates automatically (it happens. It happened.)
