State of the Compiler

[Ola Fosheim Grøstad via Digitalmars-d]

On Tuesday, 1 March 2016 at 16:57:41 UTC, Chris Wright wrote:
> Specifically not to add anything, since we want to ensure that 
> DMD 2.73.0 compiles with DMD 2.70.0 through DMD 2.72.x.

Why is this important? Cant you lock DMD2.x to DMD2.70.x 
(back-porting bug fixes)?

Then you push for changes with future upgrades in mind, so when 
you have a significant improvement overall you switch to the next 
major stable release?