Ugoos AM8 installation

Hello everybody from Romania. Newbie here. Read it all carefully.
Which Build of Corelec is best performing for AM8Pro, now? 21 or 22? Any pros/cons, +/- between 21 and 22 nightlies? Cheers.

LaterEdit - Nevermind, I installed CE22, will report here my findings.
Later Edit2 - Functioning, DolbyVision too, side-usb installed 2.5GbE ethernet adapter, fast network.
LaterEdit3 - Working, could not setup Proftpd, the GUI settings are too scarce, gave up. Another peculiarity, it is not auto-updating. I have to manually download updates and copy them over samba to update directory. From there it is automatically installed next boot.
Later Edit 4 _ Does anybody know why this version of Kodi ā€œPā€ does not feature, during playback, subtitle character set switching, like Kodi Omega Does?
LaterEdit5 - All functional so far, problem with LACK of Proftpd setting for external usb disk sharing.