VDT 1.8.1c was released this week. There is no urgency to update, but there was an important fix that can prevent installation failures, particularly for the OSG Worker Node Client package.
We are working on VDT 1.8.1d, an update to update our Apache installation with a new version of php. A couple of other updates may make this release.
We are beginning work on VDT 1.8.2, the next stable relase of the VDT. Our plan is to make it substantially similar to VDT 1.8.1. We wil add support for some new platforms, upgrade to VOMS Admin 2.0.x, and "smooth the rough edges". We don't have a lot of time to make significant changes: this version is due out by the beginning of January. If you have any suggestions for VDT 1.8.2, please let us know as soon as possible.