I have big screen 70’’ KU7000 UHD smart tv but I can not upgrade to the latest version mentioned in the email that recevied recently (2 days ago, subject:“Loads of improvements across the Plexverse”) from plex. My version is still 3.3.4 , the version is not yet released in some countries ?
I had the new client briefly and loved it! It didn’t cause any issues on my TV so when they rolled it back I un-installed the older version and side loaded the new client back on again.