Gibt es da inzwischen was? Kunde von mir fragt... (WB 2.12.2).
The old backup module (UNSAFE, so install it only when and if you need it and then uninstall again) still works.
As a developer, it's much easier for you to create backups for your client. Assuming you know how to work with PHPMyAdmin and an FTP-client
But most importantly: every serious hosting party makes full backups at least once a day, so...