Pooh
10
@VlastaHajek It looks as though it has been automatically updated from 1.8.3
to 2.0.1 on 23 November by unattended-upgrades:
Unattended upgrades can be dangerous - they don’t read the upgrade release
notes for you 
zcat history.log.1.gz | grep infl
Upgrade: grafana:amd64 (7.3.1, 7.3.2), influxdb:amd64 (1.8.3-1, 2.0.1)
This happened to me on the 11th. Fortunately I was able to put things back as
they should be the day afterwards.
Antony.
