As the title suggests, I have to update the server to the latest version available.
However from the guide (Mail-in-a-Box version v0.40 and moving to Ubuntu 18.04) there is this indication:
Upgrade your existing Ubuntu 14.04 Mail-in-a-Box to version v0.30 first. This is mandatory and relates to limitations in the PHP versions supported by ownCloud/Nextcloud database migrations. This step is no longer possible because PHP maintainers have discontinued support for PHP packages for Ubuntu 14.04. If you have not used any Nextcloud features — contacts, calendar, shared files, etc. — it is possible to skip this step. If you have used any Nextcloud features, you will not be able to smoothly upgrade using these instructions. Please open a new topic on this forum for help.”
I find myself in exactly this situation.
Where there is extensive use of all Nexcloud functions (cloud storage, Caldav, Carddav) with many domains …
Is there a way, even with manual steps, to go about solving PHP limitations?