Thanks guys, I connected to
mini 4 and set up as ready to fly and I got a message saying I needed to update the NFZ which I did, nothing else came up, no FW update option, so did a few setting changes and took her up to 74 mtr and all looked good.
I then went to the About and got these results
App version 4.1.0
Aircraft Version 01.03.0800
Flight Data Version 01.00.01.04
App Database Version 01.00.01.04
Not sure if this is all correct, only one test flight so far, will have to do more testing.
Now there are a few guys on this site saying don't update, I don't think a company like DJI would do the wrong thing by its customers, the guys that are happy with the FW updates are not heard from cos they are out flying and enjoying their Mavics.