I would like to have a list of Umbraco versions 4 and above, and with each version the list of supported version(s) of the AjaxControlToolkit.  I have legacy websites with user controls that utilize the AjaxControlToolkit.  As we work on the user controls and update the AjaxControlToolkit, the websites show various misleading errors.  We are currently on Umbraco v 4.7.1 and Umbraco v 4.7.2 for various legacy websites.  We don't want to have to deploy different versions of the same user controls containing different versions of the AjaxControlToolkit to our various websites.