dmd 2.068, 2.069, 2.0xx Evil Plan going forward

[Martin Nowak via Digitalmars-d]

On Tuesday, 21 July 2015 at 03:47:11 UTC, Iain Buclaw wrote:
> 1. If you want ddmd to be compilable by both gdc and ldc then 
> you can't introduce any new features to the ddmd codebase post 
> conversion.

Sticking to 2.068 will help for some time but is not a long-term 
solution. Particularly when considering some of the bigger D 
issues left to resolve, we'll likely have to deal with some 
incompatibilities/deprecations.
Also consider that we might use the stable phobos parts.

I made a Trello card, let's discuss the details when we're 
actually working on this. 
https://trello.com/c/4NtxWDtK/30-compatibility-implications-for-self-hosting-d-compiler