Hi there Tor, you need Roon Ready to be the interface between the server and Roon to output to your DAC, you need to ensure you have set the DAC parameters in myantipodes to enable volume control.
Go to myantipodes / Settings / Roon Ready click on Roon Ready to set your DAC, if you require volume control inside of Roon set the volume control to Software and configure the DSD setting here also.
Now inside Roon / Settings / Audio / Roon Ready set up the DAC parameters, click the Cog, set MQA etc, Volume control set to "Device Volume" you can also set up your volume limits here. Finish off in Advanced by setting Max sample rate etc. You will also see the Audio Device that is connected in device set-up. You will now have volume control thru Roon.
Regarding the software update v2.7 is the latest available software for the EX, we will be pushing out an update in the near future.