EDIT: solved itself, no idea what happened, maybe the update took longer in the background...
After latest v6-Update the versions of the 3 pihole-components is not shown anymore at the bottom of the web interface (expected below "Donate if you found this useful")
Apart from that everything else seems to be up and running well...:
my system:
pihole v6 on Raspi 3B+
Fritzbox 7490
(no gimmicks that I am aware of...)
Running pihole status shows:
/usr/local/bin/pihole: Zeile 34: /etc/pihole/versions: Keine Berechtigung
[β] FTL is listening on port 53
[β] UDP (IPv4)
[β] TCP (IPv4)
[β] UDP (IPv6)
[β] TCP (IPv6)
[β] Pi-hole blocking is enabled