Upgrading a modoboa installation can be difficult.
A regular upgrade does not require a lot of work but sometimes, additional and manual operations are needed. The online documentation always provides the required instructions per version but we can all make mistakes or forgot to apply one instruction.
The installer was already an answer to the very same problem regarding manual installation so improving it to let it upgrade a previous installation does make sense.
--upgrade option will be added to make the distinction between a fresh install and an upgrade. Upgrading an installation using the installer will be as simple as:
$ sudo ./run.py --upgrade <your domain>
Please note that this mode will require you to keep the original configuration file (ie. the one generated during the first installation).
If you need/want/like this feature, it is time to sponsor it :-)
€120.00 on a goal of €500.00