Only gtkc/gdktypes.d was modified:

https://raw.github.com/gtkd-developers/GtkD/master/src/gtkc/gdktypes.d

I'll make an bugfix release when you can confirm it's fixed.

Sorry, but:

bash: https://raw.github.com/gtkd-developers/GtkD/master/src/gdkc/gdktypes.d: No such file or directory