As of February 2017 Atlas Team has been given a new name - Rhythm!
Take a look at Rhythm's new community page
Rhythm is Micro Focus' rebranded Agile Delivery and Tracking tool, formerly known as Atlas Team. Atlas Team was StarTeam Agile's replacement and successor, released in version 4.0. Not only has it been renamed, it has also been given a new look and feel to match Atlas.
The 4.1 update brings all of the functionality from StarTeam Agile and Atlas Team, but also:
Rhythm will be available as part of the Atlas Planning and Tracking Suite 4.1, or as a separate product.
StarTeam Agile customers should now use Rhythm as their agile tracking tool. Customers who wish to continue to use StarTeam Agile, can open the ALMConfiguration.xml file and change this value: <goToStarTeamAgile>TRUE</goToStarTeamAgile>. Additionally, refer to the installation guide to learn about enabling the StarTeam Agile .WAR file.