backporting features to D1

[dsimcha]

== Quote from Bruno Medeiros (brunodomedeiros+spam at com.gmail)'s article
> Andrei Alexandrescu wrote:
> > Derek Parnell wrote:
> >> On Sat, 11 Oct 2008 12:54:47 -0700, Walter Bright wrote:
> >>
> >>> bobef wrote:
> >>>> category 3) will be forced to break their code because
> >>>> once D2 is declared stable D1 will probably be declared deprecated
> >>> No, I intend to support D1 as long as there is interest in it.
> >>
> >> I'm no longer using D at all. I've lost interest in D1 as D2 looks to be
> >> much, much better. However D2 is a currently whirlwind of uncertainty.
> >> I'd
> >> love to use some parts of Tango but not D1. I like Phobos (but admit it
> >> still has too many warts and omissions) but D2 is just not worth my time
> >> yet. I tried coding in D2 but a lot of that code is going to need
> >> significant rework when the cabal have finalized their deliberations,
> >> which
> >> look like being at least 12 months away.
> >
> > One way or another D2 will have to be done around April, when TDPL comes
> > along.
> >
> > Andrei

Sorry for the stupid question, but I'm really, really curious.  What the heck is
TDPL and why is it relevant to D2?