firmware update to 9.80

i am using the connect app of teh phone to setup my edge 830.

The installed firmware version is 9.75 and I would like to use the music control features.

I have understood that in order to do use the musci controls, at least the 9.80 version need to be installed; is this correct?

I am not able to update the firmware version since the device states that the latest version is installed.

1. is it real that the 9.80 is the latest version

2. is it true that only with 9,80 can control the music on iphone

3. what do i have to do to be able to install the 9.80 version?

many thanks