Current State of the GC?

[Martin Lundgren via Digitalmars-d-learn]

I've been reading up a bit on the D garbage collector. Seen 
mostly negative things about it. I've also seen a lot of 
proposals and what not, but not much about the current state of 
things.

The latest page I can find about it is 2015H1. It mentions 
improving the GC and making libraries less reliant on it. 
However, I can't find *any* information about what GC 
improvements have been made. No up to date performance 
comparisons, etc.

So what's been happening in memory management land lately? Bad GC 
seems like one of the Dlangs weak points, so showing improvements 
here could definitely bring more people in.