On Tuesday, 4 February 2014 at 06:49:57 UTC, Andrei Alexandrescu wrote: >> That would be awesome. The breakage involved, is quite high >> however. > > No breakage if the opt-in flag is not used. > > Andrei OK, If you are willing to do that change, I'm 200% behind ! Question, why do you propose to use @nullable instead of Nullable!T ?