Supposedly 7.11 introduced support for DV, but as the thread is still open it doesn’t seem to be a full implementation as observed by several posters above.
Would be appreciated if Plex could give us some [official] feedback whether to expect expanded support, or if this is it.
Edit: silly of me to bump this without reading all 
of the threads concerning this, but at least it is being worked on. We’ll see what the outcome is. Plex displays wrong colours with Dolby Vision on AppleTV 4k - #167 by Ridley
