This is another bugfix release. 1.8.4 had a problem in that it removed the previous version of MapTool. 1.8.5 fixes that behavior as well as a few other bugs. The only enhancement in this release is Token Property highlighting in the macro editor.
You can download the latest version @ https://github.com/RPTools/maptool/releases/tag/1.8.5
To see all changes in this version visit https://github.com/RPTools/maptool/blob/1.8.5/CHANGE_LOG.md