Now that we, DevExpress, have started to maintain the ASP.NET AJAX Control Toolkit, the question about support needs to be addressed.
Open Source
The ASP.NET AJAX Control Toolkit is and will remain Open Source Software (OSS). It will not become a DevExpress product, and so we will not provide support through our usual support channels. After all, those channels are for customers who have paid for their product subscriptions and the support is provided as part of that.
So, like most open-source projects, the support for the AJAX Control Toolkit will be a community-driven effort. We'd like to encourage you to get involved with the project and provide feedback, pull requests, possible fixes, etc.
Report Issues
We accept that not everyone will be able to debug and analyze and fix bugs, so there must be a way for interested developers to report issues. To do so, please register or sign-in to GitHub and create an issue ticket using this link:
ASP.NET AJAX Control Toolkit - Issues
Create an issue
Features/Fixes/Improvements
This list of issues will also become the major source of suggestions that our team will use to help improve the ASP.NET AJAX Control Toolkit. For suggestions, we will be updating the status of such items on this list.
You can download the latest release here:

Click the download button above and the get the latest bits.
Learn about latest release here.
We hope that, as users of the AJAX Control Toolkit, you will participate in this community-driven effort to help drive the Toolkit forward. Thanks!
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