We'll create fresh WordPress site with Background Update Tester installed. You have 20 minutes to test the plugin after that site we'll be deleted.
Most sites are able to apply updates in the background. Background Update Tester checks your site for compatibility and explains any problems.
After activating this plugin, visit the Dashboard → Update Tester screen. (If you are using multisite, visit Updates → Update Tester in the network admin.)
This is an initial release.