Has anyone figured out what this means, is, does?

  1. [COLOR=rgb(21.200000%, 37.300000%, 56.900000%)]New in 10.5[/COLOR]
    [COLOR=rgb(31.000000%, 50.600000%, 74.100000%)]New Features[/COLOR]
    1. Support for Sonos Integration.
    Note: Use of Sonos features require upgrading to RadioRA2 10.5.





Somewhat vague and I have not figured out exactly the difference is yet.