Is 10.8.11 still the best version for Synology NAS?

[cmberry20]

Thanks for the reply TDP & for clearing everything up. Yeah, I suspected the reason why it wasnt updating was because it was locked to the version that was stipulated in the original setup code.
With regards to SDR & HDR, I dont think I have any HDR content but will check with Mediainfo to see what I've got.
Will probably attempt the update later on this week.
Ta.