Beginning 9/1/2020, we will officially transition any Curo365 environment from the "Classic Interface" to the new Microsoft Unified Interface experience, and making it the standard and default experience moving forward.
We've recently finished updating Curo365 to fully support the new Microsoft Unified Interface. You can learn more about the Unified Interface here: https://docs.microsoft.com/en-us/powerapps/user/unified-interface
This new interface will make things better in many ways. You'll really like it.
Therefore, we will be fully deprecating the older "Classic" interface, and will no longer be supporting it.