Try the new update command. It's as simple as:
$ ./elefant backup ~/backups/ $ ./elefant update
Elefant 2 Beta 6 (v1.3.5)
Elefant 1.2 Stable (v1.2.2)
For all downloads, see our Github downloads page.
For an explanation of Elefant's version numbering system, see here.
The following hosting companies officially support Elefant as a one-click install in their packages: