I also applied the 5.6.1 upgrade to my 5.6.0 installation on my test server. No problems with Telerik control, but did have an error with the site map provider:
Installing Package File CoreSitemapProvider_5.6.0.0_Install: Error!
Everything else was successful.
I cannot find any errors in the Event log. Is there someplace else to look for installation errors?
I compared my backup of the web.config from before the upgrade to the web.config after the upgrade.
OLD: <add name="SitemapHandler" path="Sitemap.aspx" verb="*" type="DotNetNuke.Services.Sitemap.SitemapHandler, DotNetNuke" preCondition="integratedMode,runtimeVersionv4.0" />
NEW: <add name="SitemapHandler" path="Sitemap.aspx" verb="*" type="DotNetNuke.Services.Sitemap.SitemapHandler, DotNetNuke" preCondition="integratedMode" />
My site is running under version 4 of the DotNetNuke framework. So I figure this is the problem. Does something need to be fixed in the installation before I apply this upgrade to production?