Backup4all 6.1 was released on April 12, 2016. The main feature is adding another Cloud Backup destination, OneDrive for Business. It also includes several other miscellaneous updates.
Backup4all 6.0 was released on February 25, 2016. An important part of it was completely redesigned thus we highly recommend the upgrade.
Starting with December 31st, 2015 Backup4all version 4.x, 3.x (and previous) are no longer supported. If you are still using version 3.x or 4.x we highly recommend an upgrade to the latest version.