Latest docker image broken

I use watchtower to keep my docker images up to date and the image pushed to latest tag yesterday broke everything - I can’t find any docs saying anything about mail_location being removed or replaced….

Any idea? I’m unfortunately away from my laptop for a few days so I can’t do any deep debugging but I’d appreciate any pointer.

doveconf: Fatal: Error in configuration file /etc/dovecot/dovecot.conf line 1: mail_location: Unknown setting: mail_location

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