I take the lack of responses unfortunately as "no, not safe to use any more".
See also "FYI we are demoting the Rock64 board status to Community Supported due issues such as above." from Armbian.
https://forum.pine64.org/showthread.php?...4#pid86494
And this thread about missing updates: https://forum.pine64.org/showthread.php?tid=12226
and this post about official Debian support: https://forum.pine64.org/showthread.php?...0#pid87100
See also "FYI we are demoting the Rock64 board status to Community Supported due issues such as above." from Armbian.
https://forum.pine64.org/showthread.php?...4#pid86494
And this thread about missing updates: https://forum.pine64.org/showthread.php?tid=12226
and this post about official Debian support: https://forum.pine64.org/showthread.php?...0#pid87100