Please provide a example how to add a custom control, the ones i can find online are outdated..
Comments: AJAX Control Toolkit v16.1 release date is not yet determined. Using static JavaScript files with extender is an advanced practice and is not required to make custom extender work properly. If you want to know more about it, you can read this article: [ASP.NET 4.5 ScriptManager Improvements in WebForms](http://blogs.msdn.com/b/pranav_rastogi/archive/2012/09/21/asp-net-4-5-scriptmanager-improvements-in-webforms.aspx) Control bundling does not affect custom extenders, so this information is not covered by this tutorial.
Comments: AJAX Control Toolkit v16.1 release date is not yet determined. Using static JavaScript files with extender is an advanced practice and is not required to make custom extender work properly. If you want to know more about it, you can read this article: [ASP.NET 4.5 ScriptManager Improvements in WebForms](http://blogs.msdn.com/b/pranav_rastogi/archive/2012/09/21/asp-net-4-5-scriptmanager-improvements-in-webforms.aspx) Control bundling does not affect custom extenders, so this information is not covered by this tutorial.