Backup4all 5.4 was released on May 11, 2015. This is a major version and the most important feature is the integration of a smart file scanning mode. What this basically means is that backups will perform faster in certain situations
Backup4all 5.2 was released on November 17, 2014. The user interface is now translated into German too, a long awaited update by German speakers (and we have plans to release other language in the near future too).