This build includes the following bug fixes/improvements:

1. Fixed a bug where ProgressBar control may cause default page to be unnecessary called;
2. Fixed a bug where accessing CallbackPanel Triggers drop down at design time causes a NullReferenceException under certain scenarios;
3. Added ClientSideOnSort event on the Grid control;
4. Added client side getSortColumn and getSortOrder method on the Grid control;
5. Added new ScriptEvent control;
6. Added new ControlFrame control;
7. Fixed MsgBox button spacing not displayed correctly on IE 8 issue;
8. Fixed an issue with MaskedEdit IsValid property;
9. Implemented drag and drop outside of TreeView feature. Previously TreeView drag and drop can only occur inside the same TreeView;
10. Enhanced drag and drop to automatically scroll window when drag target is out of view;
11. Added sessionless state support;
12. Added ClientSideOnUnload event for all controls;
13. Fixed not able to tab out a MaskedEdit control on FireFox issue;
14. Fixed an issue with menu cross frame support;
15. Fixed an issue where AJAXUploader may displays a popup window on Chrome and Safari;
16. Fixed an issue where client side TreeNode.ensureVisible may not work correctly on IE 8;
17. Fixed ESC key not working correctly on Safari problem;
18. Fixed TreeNode.ShowCheckBox not working correctly issue;
19. Fixed ColorPicker not working with Editor issue;
20. Fixed not able to change image Url in Editor on non-IE browser issue;
21. Fixed Grid keyboard navigation not skipping deleted row issue;

Enjoy!