This are note the ASP.NET Ajax releasenotes...
SlideView and PDFView are controls in the UI for Xamarin Forms
Thank you for noticing and reaching out. You will find your Telerik points updated as a small "thank you".
It seems there was some hiccup in the backend and wrong data was shown. It should be fixed now. If you still see the Xamarin data, try clearing your browser cache, or you may have to wait a bit until the load balancer and proxy catch up to sending you the updated data and not cache.
I am also pasting the correct release notes here:
February 20, 2019