I tried 2.2 on 2 servers.
One is suse 9.3 which was an upgrade from 2.1.2.
Other server was a clean install of 2.2 on Debian sarge 3.1 in vps amd 64 server.
On suse 9.3 upgrade went fine, but i tried to add an email address to to one site.
Ispconfig database was updatet but email address like /home/www/webid_nu was not there.
Yes i did inserted
exec("maildirmake ".$web_path."/user/".$user_username."/Maildir &> /dev/null");
exec("maildirmake -f Drafts ".$web_path."/user/".$user_username."/Maildir &> /dev/null"); in /root/ispconfig/scripts/lib/config.lib.php before i did anything.
I had a full copy of 2.1 /home/admispconfig and /root/ispconfig so, i just copy it back to /home and /root respectively.
Creating email now works just fine , but i wonder if the rest of it will work as well. So, i have ispconfig 2.2 modified database with ispconfig 2.1.2 os.
Would this work ok. so far it is.
it is on my http://www.ispcity.com
On my Debian sarge 3.1 vps with 64M RAM 512M swap i gave up and went back to webmin virtualmin combo.