Two new additions:
Crystal (
https://crystal-lang.org/) -- OpenBSD only as far as I know, the port is out-of-tree but I'm trying to convince the port maker to submit it to ports@ (
https://github.com/wmoxam/crystal-openbsd-port)
GNU D Compiler (GDC) -- I got this running on OpenBSD. Need to import it, but now all the BSDs have support for the D language.