TG V. 5.7 Maintenance Release is available at www.aavso.org/tg
The release corrects a problem with the deletion of previously saved transform sets.
It is also compatible with the new Mac OS X v. 10.10.2 Yosemite release. Yosemite no longer comes with an X11 emulator that was provided in earlier Mac OS releases. Instructions for installing the X11 emulator (which is straight forward) are provided.