The "New version exists" visible on the control unit info screen is for informational purposes only.
The OBDeleven app checks for updates to the control unit software and shows if there's a newer software version detected in our database for your control unit with the same software number.
You can view the current software version of your control unit, and the new software version available for this control unit.
Note: Currently, you can't update the software version of your control unit with OBDeleven.