Cache Substitution Controls not available

I'm currently using Sitefinity 6 and read the blog post regarding cache substitution found here

I'm trying to implement this solution, however I don't seem to have the CacheSubstitutionUserControl class.  Where is this located with Sitefinity 6? Is it supported? And if not, what is the alternative workaround to this same concept?

Thanks,

Hi,

Thank you for contacting Telerik Support.

CacheSubstitutionUserControl class is obfuscated.Follow this link from our documentation:

http://www.sitefinity.com/documentation/documentationarticles/installation-and-administration-guide/system-settings/configuring-caching

In Sitefinity 6.0 there is class CacheSubstitutionWrapper in Telerik.Sitefinity.Web.UI.PublicControls so if you want to inject dynamic content onto cached pages, this is what you need.

Follow this article and let me know if you need further assistance.