I had an early RPi4, and the only way that I could get it to run was to install a nightly build, which was nightly-20210505-83202cd (RPi4-arm). That was for LibreELEC 10; version 12 is now current.
Is there any way to get this system to update to current levels, or do I need to start again with a clean install of version 10, 11, or 12?
If I need a clean install, which current version do you recommend?