The scenProc development release has now been updated to version 2.0. One of the first changes I have pushed into the development release is an update of the GDAL libraries to a more recent version. So if you grab the development release 2.0 for the first time, please do a full download and not an update download.
For the rest there should only be minor changes compared to the 1.1 version. The big changes to the filter syntax and to the way library objects are generated are still in my development branches and will make it to the development release once they have been tested more.