DMD needs branches

[Walter Bright]

David Ferenczi wrote:
> I also second this.
> 
> Walter, please don't to address (just) the concrete bugs arose with the last
> release, but the root of the problem.
> 
> And it is definitely the development model. D is a moving target. We all
> love this language, but we need a stable branch with fast and frequent
> bugfixes.
> 
> Please listen to your users.

The problem is that one cannot just do bugfixes without running the risk 
of breaking things. The final thing was an effort to fix the existing 
buggy final behavior.