How to Update the Sonos App to Latest Version on Android and Apple devices

To upgrade the Sonos app to the latest version on either Android or Apple devices, do the following:

• Open the Sonos app
• Click on the “sun” icon in the top-right corner of the app to get to System Settings.  
• In the second section of the System Settings screen where it says “Your System”, look to the far right of that and click on “Manage”.  
• Scroll down and click on “System Updates”.
• Then click on “Check for Updates” to get the latest Sonos app version.  The software will check for a new version and if one is found, will install it.  Otherwise it wil inform you that you're already on the latest version.