For the STS get the SitefinitySTSWebApp.zip from the files for the related Sitefinity version in your account
The app have been updated to comply with the claims authentication updates in Sitefinity for the latest version. Copy over the updates/configurations you have in the current SitefinitySTSWebApp that you use to the latest one and this way no additional configuration will be needed for the update to the latest SitefinitySTSWebApp .
Do you want to have your say in the Sitefinity development roadmap? Do you want to know when a feature you requested is added or when a bug fixed? Explore the Telerik Sitefinity CMS Ideas&Feedback Portal
and vote to affect the priority of the items