This version is mostly bug fixes due to memory errors that occurred during specific combinations of actions. The logic of some functions were changed, the memory cleanup improved, and some changes made to the way coordinate systems are managed. GEM4D is now stable during all my tests, please let me know if you find any actions that still cause GEM4D to crash.
I will not have much time for programming during the coming month, and also have to start working on the next software package Profu - Probability Of Undercutting. There are a few packages out for this, but they are mostly not freely available or friendly to use, so let's change that. Thanks to John Lupo and Tom Byers who requested the software, transferred the knowledge, and agreed that it could be developed as BasRock software. Having the IP to the code opens possibilities for some form of integration with GEM4D in future.