We have just added a new Backup feature to UCM. Try it out from Settings > Backup (after upgrading from Settings > Upgrade).
This Backup tool will create two files:
1) a ZIP file with all the UCM code
2) a SQL file with the database export
You can download these files and save them in a secure location. If anything ever happens you can re-upload the UCM code and re-import the database to quickly get back on your feet.
Please note that PHP version 5.3 is required from now on. Before updating, please check with your hosting provider if you are unsure what version you are running.
Backup Screenshots Below: