Sorry I don’t know the answer to that, I haven’t installed 5.6 yet. 
I’m currently using 4.27.2 as the physics asset simulation in that version is consistent at ALL framerates, whereas in UE5 the physics becomes stiffer and stiffer above 60 fps.
However, one good improvement in 5.6 is that Lumen can finally be enabled in DirectX11 via a console command (in the project’s DefaultEngine.ini), because in 5.5, Lumen support had been removed from DirectX11 projects.
To enable, add the following to your project’s DefaultEngine.ini file under [/Script/Engine.RendererSettings]
r.Lumen.Supported.SM5=1