There are two kinds of releases:
- The stable release
This release doesn’t contain all the newest features but is stable and mature.
- The development release
Contains all the latest (and greatest ;)) features but could be unstable. The development release is the one that is backup up my machines (i like to be living on the edge ;)) so it’s a least stable in creating backups.
Only the latest releases are shown, for a complete list see this page at sourceforge