Some questions on latest work

[Bienlein via Digitalmars-d]

Hello,

I've been busy with other things for about a year and would like 
to ask some questions to catch up with latest language/library 
additions in D. Looking through the change logs simply appeared 
to be a bit tedious. My questions might look a bit like asking 
pain point questions on purpose, but it's really only about 
catching up with the status on some issues:

* There was a problem with the GC leaking memory in some 
situations. Is this still the case?

* There was some talk about changing the standard library in a 
way that it can be used with the GC and without. My question is 
what the current status is concerning this topic.

* RefCounted only used to work with structs. It would be useful 
if it worked with classes as well. Is it being considered to work 
on this?

Thanks for any answers.
Regards, Bienlein