What this program does, with a few exceptions, is enable features in Apple software that Apple does not intend for use. Usually that is because the features are not well tested and may be buggy. It does this by editing preference files.
This version adds a new tab for Xcode with several settings, a few of which may be useful to developers.
There is now a feature to edit the spotlight filter rules that determine what folders to index. These rules are in addition to the hard coded internal rules used by mds, so you still do not have full control.
The only documentation is through the pink question mark in the program.
