I'm happy to report that a new version 2.0.5 of MC-202 Hack (Mac) is now available!
This is a Mac-only bug fix release; the latest Windows version is still 2.0.4. The update fixes a problem with the app not starting up on newer Mac operating systems. It now works correctly through Mac OS 10.14.x (Mojave).
This version is now installed via an installer package, rather than dragging and dropping the application onto the Applications folder as before. This allows for a Java check before installing, to be sure you have the appropriate Java system installed.