Yes, 2.x has improved snapshotting for Linux and includes a LVM snapshot script. The problem still present is how to install and configure it. There is the portable Linux installer UrBackup Client Linux 2.0.26 beta.sh, but many people may want distribution packages.
I have also documented the pre/post backup scripts. The 2.x manual is linked from e.g. UrBackup Server 2.0.27 beta (updated)/Client 2.0.26 beta (updated 4x) (at the bottom)