Hi all 
I just come here to see wether in the 2.91 beta the AO node finally works properly or not ?
After filing a bug report, i was redirected to this:
https://developer.blender.org/D6250
That seems… err… interresting ? about hairs ? 
But AO node bug ? i don’t see much about this…
Of course i don’t care hairs coz i don’t use them and i can imagine it’s kinda essential but…
AO is IMHO much more essential ( simply because hairs should use AO 
well If anyone knows wether AO works in 2.91 or if not, in how many years it will 
I’d be strongly interrested
thanks for your kind answers !
And happy blending !