The reference compiler, DMD, is open source: https://github.com/dlang/dmd https://github.com/dlang/dmd But they don't accept just any Pull Request or features

The reference compiler, DMD, is open source: https://github.com/dlang/dmd https://github.com/dlang/dmd But they don't accept just any Pull Request or features the community submits, understandably. There's a process called DIP for language improvements: https://github.com/dlang/DIPs/blob/master/DIPs/README.md https://github.com/dlang/DIPs/blob/master/DIPs/README.md However, by some accounts, it's really hard to get anything through. Given D already has so many features, I find that to be a good thing, to be honest, but not everyone agrees, of course.