There are 2 ways to get back to the Agile Classic UI:
Back to Agile Classic for the current session only
If you want to return to the Agile Classic UI for your current session only, find and select the ‘… More’ option at the bottom of the navigation menu on the left side of the screen, then click on the ‘Back To Classic’ menu item at the bottom of the menu.
This will open up a new tab using the Agile Classic interface.


Login to Agile Classic by default
If you would prefer that the system use the Agile Classic interface by default, navigate to the User Menu at the top right of the screen, and select Preferences. From the Preferences screen, select the Login Settings tab, and select Agile Classic as the Default Login. The setting will save automatically.

