The process to upgrade is:
* Make sure the version number of the script is one major version over
the service version.
* Activate the script, rebuild configuration.
* Run `upgrade-pg-cluster` as `root`. One can give arguments like
`--link` or `--jobs 4` to speedup the process. See documentation for
some details.
* Change package to new version once the upgrade is finished, rebuild
configuration.
* Optionally, `ANALYZE` the new database.
This is a requirement anyway for homeservers, and the `forceSSL` option
tried to create a redirect for non-SSL traffic, except the `listen`
option only provided SSL endpoints anyway, so this resulted in
additional rules in the nginx config looking like this:
```nginx
server {
server_name matrix.belanyi.fr ;
location /.well-known/acme-challenge {
root /var/lib/acme/acme-challenge;
auth_basic off;
}
location / {
return 301 https://$host$request_uri;
}
}
```