Hey folks,
I have an mailcow instance running with 2023-08 release. I tried to run the upgrade script but no luck - short review of the error message gave an hint to the docker compose error faced earlier on the 2022 releases while docker-compose went from v1 to v2.
reference: forum thread
Some Infos regarding environment:
user@myserver# docker version
...
Server:
Engine:
Version: 20.10.5+dfsg1
API version: 1.41 (minimum version 1.12)
Go version: go1.15.15
Git commit: 363e9a8
...
user@myserver# docker-compose -version
docker-compose version 1.25.0, build unknown
user@myserver# docker compose version
Docker Compose version v2.20.2
user@myserver# cat /etc/os-release
PRETTY_NAME="Debian GNU/Linux 11 (bullseye)"
...
Error message:

the error message is exactly the same as written in above topic. Does someone see similar error in same upgrade scenario? Will overwriting the old docker-compose command help me out on this one? I am a bit confused as the earlier post mentioned that their have been modifications on the upgrade script along this error.
thanks in advance for your help on this!
regards
Carsten