You can download it and see the changelog here.
This is the last version of the v0.7 branch. There won’t be new releases under this branch.
That means that everyone should migrate to the new 1.0 version :)
Before migrating to the new 1.0 you MUST migrate to this version (0.7.10).
It includes a Rake task that prepare the migration to 1.0, so don’t miss that step!