I 'm new here.
Just did the upgrade from 7.0.1 to 8 on my RPi 2 with the manual update file over to /storage/.update.
The upgrade appeared to proceed fine, it rebooted and then froze on the LibreElec boot screen - Libreelec 8.0 official in top left of screen.
Tried another twice and same situation.
I'm restored back to 7.0.3 and works fine.