On the heels of a prior update comes a new incremental build. This update resolves rare cases the Terabyte Volume Engine (TVE) process may fail, and a second unrelated issue where Diskeeper does does not start (i.e. defragmenting) after the initial installation due to licensing. As usual, if you are not experiencing these issues, there is no need to update.
Here is the ReadMe note from the update:
D. CHANGES IN THIS RELEASE
1. Fixed issue where defragmentation operation failed to start.