This compiler is at version 6.0.45.1 and has now completed Github Milestone 2
Release Date May 18, 2020

occ60431d.exe
MSDOS setup package (MSDOS executable)	922e1856053757bd55b1e1ec2adeaf3034d0bd4e08677cc51049fd1d2b04f88d	8MB

occ60451e.zip
Zipped version of compiler executables	4cadc6dc2037d5e12f97f467ec390db7faf6887a323fb905cf957da10b683ad9	12MB

occ60451s.zip
Source code for compiler + RTL	a4e5149b5f5540bd0282d484b46da2123e6bd1d0c3d19466d40a676d3b1c8e9b	27MB

This compiler is released under a GPL V3 license.

http://ladsoft.tripod.com/orange_c_compiler.html