The maintenance has been successfully finished. Here is the list of changes:
1. MySQL upgraded from 5.5 to 5.6
2. Apache upgraded from 2.2 to 2.4
3. Default PHP updated from 5.3 to 5.5. Please note, all account which use custom PHP weren't affected.
4. Installed "MultiPHP Manager" (PHP: 5.4-7.1) and "MultiPHP INI Editor" which allows you change PHP version or edit php.ini per domain.
You can still use "Select PHP Version" if you need to set custom modules.

Please feel free to open a ticket to our support if you need more information or there is any problem which needs to be resolved.