Smooth transition to D2 for Tango users?

[Sergey Gromov]

Steven Schveighoffer <schveiguy at yahoo.com> wrote:
> oops, D1 doesn't support that type of enum ;)

I think you've got the idea. The code

version (D_Version2)
{
  mixin("some very specific code");
}

works in any version of D, current or future.