</li><li><strong>When
updating release 2.0.X to release 2.1.X, you must immediately
login on company 0, the first company you created, as admin
-(called the superadmin), go to the 'Setup' tab and run 'Software
+(called the superadmin). If you use a theme other than the standard 3,
+aqua, cool or default, switch to one of these before going further. You
+can download a new one of the new themes on the download page. Go
+to the 'Setup' tab and run 'Software
Upgrade'.
Mark the checkbox 'Install' and press 'Upgrade System'. This will
upgrade ALL your companies.</strong></li><li style="font-weight: bold;">If something goes wrong during upgrade, you can enter here again and try 'Force Upgrade', and press 'Upgrade System' again.</li><li><strong style="font-weight: bold;"></strong><strong>There are no database changes during a major and minor release. Like from 2.1 to 2.1.1 - 2.1.5 .</strong></li>