What do you want to see for a mature DLang?

[Arek]

On Friday, 29 December 2017 at 07:53:51 UTC, IM wrote:
> I will start:
cut...
> Simple things like these make a big difference. D Lang has been 
> around for a long while now, and hence signs of its maturity 
> has to show everywhere, especially in the compiler, as well as 
> the package manager.

I would like to have a complete and well-defined memory model.
And its proper implementation in the compiler.