The new S2 update is available for most of Sonos’ existing speakers but not all of them. An infographic produced by Sonos shows which products are compatible with each platform. It will continue to receive security patches, bug fixes, and music service support, however. This existing app is still live on app stores, but it’s been rebranded to Sonos S1 Controller, and its listing notes that it will not receive new features and services via updates. You have the option of either updating your existing system to S2 or continuing to use the old app to control those products. The new app supports all of Sonos’ modern devices, including those that you previously controlled with the old app. Sonos says the new platform includes support for higher-resolution audio technologies such as Dolby Atmos on the Sonos Arc, better security, and an improved user interface. The new app (now with a tan icon) is now available on the App Store and the Google Play Store, and it will be the only way to control the company’s latest speakers: the Sonos Arc Dolby Atmos soundbar, Sonos Five, and new third-gen Sonos Sub. Sonos is releasing its new app and S2 platform today.