If you are a Site Admin you can preview your site in the latest development version of the 5.0 release of the UNLedu web framework and templates.
Doing these steps will only convert the theme for your user account (end-users will still see the site as it is now) and you can switch back and forth any time.
On October 1, 2017 we will be forwarding all http:// requests to their https:// equivalent. Serving over HTTPS is now increasingly viewed as a best practice for user privacy and security. Starting later in October, the Google Chrome browser will label pages with a "Not secure" warning in the address bar when users enter data on an HTTP page. This will impact all UNLedu Framework pages (and hence all UNLcms pages) since the UNL site search bar is in the header of every page.