The new routing system defines a new and more flexible interface for developers to handle creating and processing URLs and gives end users more options as it relates to how URLs are displayed (including the often requested ability to remove content item IDs from the URL).
As of Joomla! 3.8, for the components which support the new router (Content, Contacts, Users, and Newsfeeds), it is possible to set up the router to run in one of three different configurations:
More in our Blog Post about this exciting feature of Joomla 3.8.0. To enable the new functionality for the components mentioned go to the respective component options button and follow the steps as shown below