SDL 3.1 preview support?

[Herringway]

The SDL 3.1 preview was released today. Although the ABI hasn't been declared totally stable yet, it seems safe to say things won't change too dramatically for the stable release at this point. I would like to see some support for 3.x so that I can start testing things out in my own projects.

[ichordev]

SDL 3.0 support will permanently replace SDL 2.0 support. It won't be quick for me to make the bindings, because I'll be rewriting all of them from scratch. The D-side API will probably also independently change significantly, although I'm not quite sure how at this juncture. I'm not ruling it out, but also not prioritising doing this until SDL 3.0 is fully released because nothing even supports it yet—it's not available via any package managers even.

[ichordev]

All future pull requests for SDL2 support should be in the SDL2 branch, as ~master is now moving towards supporting SDL3 exclusively.