Ant bundles can be rolled back to a previous version number or a previous deployment of that bundle. This provides some extra protection and flexibility when deploying and managing applications, particularly for testing and production systems.
In the top menu, click the Bundles tab.
In the left navigation window, expand the bundle node, and then open the Destinations folder beneath it.
Select the destination from the left navigation.
In the main window for the destination, click the button.
The next page shows the summary of the current deployment and the immediate previous deployment, which it will be reverted to.
Add any notes to the revert action. Optionally, select the checkbox to clean the deployment directory and install the previous version fresh.
Click Finish on the final screen to complete the rollback.