Update to a new version of PMS?

How do I update to the newest version of PMS? TV metadata won’t load and I read on another thread that it’s been fixed in the new PMS. But how/where can I update this?

http://plex.tv/downloads

Thanks – I’ve since realized the new PMS won’t fix my issue because I’m using Plex Cloud. That’s why I couldn’t figure out how to update my PMS. Hopefully this gets fixed for Plex Cloud users too!