What's the go with the GC these days?

[Meta]

On Saturday, 5 January 2019 at 22:05:19 UTC, Manu wrote:
> Is progress possible, or is the hard reality that the language 
> is just designed such to be resistant to a quality GC, while 
> the ecosystem sadly tends to rely on it?
>
> Where's the ARC stuff? What happened to opAddRef/opRelease?

As per Andrei's talk at the last Dconf, ref counting requires 
__mutable to play nicely with const and immutable.