D needs stable and unstable branches!

[Gregor Richards]

D (and DMD) desperately needs to have stable and unstable branches. The 
newest releases are always unstable.

Basically, the idea behind branches is:
  * You can keep "new" code separate from tried-and-true code until it's 
ready.
  * Nobody will start writing all their library code against the 
unstable branch until it's made stable.
  * Ahura Mazda only listens to prayers of those who have stable and 
unstable branches.

Since it would have branches, the unstable branch could add as many 
features as it wants, but the most important ones are:
  * LINKING AGAINST C++, JAVA AND .NET CODE. I cannot stress enough that 
D will get nowhere unless it can link against all three.
  * The unstable branch should use Tango. Phobos will be considered the 
obsolete predecessor to Phobos only.
  * The unstable branch can work on more general concepts, such as 
increasing the dynamicism of D. I'd like to see prototype-based objects 
or (optional) dynamic typing.

  - Gregor Richards