Does plex update the LG tv app automatically?

I have plex installed on my tv for a long time now and don’t ever remember it updating. I get frequent updates of my plex server in windows so I was wonder does the plex app on my tv auto update, or do I have to do it manually?

I am only asking because recently I was trying to watch something and all I was getting was sound and a black screen, and yet it plays fine in windows. So I thought maybe it was a codec problem.

I am thinking if the app was updated it might solve my problem.