Squat.net has moved from Roundcube 0.7.x to 0.9.2
Unfortunately it was not easy for us to simply copy your email contacts inside Roundcube across. Luckily you can do that yourself.
Log into the old Roundcube. Go to Addressbook. Click on export and save the file. Click on the other addressbook (Collected addresses). Click on export and save the file. If you have more addressbook groups, export them as well.
Log in to the new Roundcube. Go to Addressbook. Click on import and select one of the saved files and import that. Do the same for the other files.