The latest release is YUIAspNet RC1 and it includes the following controls:

1. AutoComplete [ Documentation | Live demo ]
2. Button [ Documentation | Live demo ]
3. Calendar [ Documentation | Live demo ]
4. Charts [ Documentation | Live demo ]
5. ColorPicker [ Documentation | Live demo ]
6. DataTable [ Documentation | Live demo ]
7. Dialog [ Documentation | Live demo ]
8. Editor [ Documentation | Live demo ]
9. LayoutManager [ Documentation | Live demo ]
10. Logger [ Documentation | Live demo ]
11. Menu [ Documentation | Live demo ]
12. Paginator [ Documentation | Live demo ]
13. Slider [ Documentation | Live demo ]
14. TabView [ Documentation | Live demo ]
15. Tooltip [ Documentation | Live demo ]
16. TreeView [ Documentation | Live demo ]