after installing indigo 2021.1 I have found no problems in my plugins so far = no error message all devices are updating ... have not tested all functions but it looks good.
pibeacon
fingscan
unifi
indigoplotD (you need to change the sql lite data path)
utilities (you need to change the sql lite data path)
arduino
appleTV
Caddx
minMax
secondsSinceLastchange (you need to change the sql lite data path)
shellyDirect
homeAway
Karl