System.Version$:Int                        (read-only)

Version number of the program executing the script. The version number has three digits for the "patchlevel" field, and two digits for the "minor" field. For example, "101018" or "199020" for "1.1.18" and "1.99.20", respectively.

This is a testing version.
It may be incomplete, and have more bugs (or features) than the public live version at planetscentral.com.