At some point, I started making a similar thing for C++ (arewemodernyet). I didn't even include a provision for the case that features go away - I think I just

At some point, I started making a similar thing for C++ (arewemodernyet). I didn't even include a provision for the case that features go away - I think I just stored for each compiler the minimum version a draft (Nxxxx) is implemented in. The thinking that "everything becomes green over time" is just so ingrained.