I know that there is a new dependency graph in 2.80. And I now about some limitations of it, for example dupliframes, slow parent was removed
https://developer.blender.org/rBS7400aa7e595063510ce9f29fa1b02ebd3f9296e2
and some other places, like undo system that is need to rework.
But what about benefits? Where I can find information about it?