For this, you’ll keep the original Sonos app which is now named “Sonos S1 Controller.” The last option, and it’s costly, would be to upgrade your S1 products to the equivalent S2 offerings.

This is the new operating system to power the current Sonos lineup, and it’s also the internal name for the new app. Legacy products will not support S2, and will use a rebranding of the old app ...

3. Run your existing system on the S1 app. You’ll still get bug fixes and security patches, and we will work with our partners to keep your music and voice services working for as long as we can ...

However, the old S1 Controller app will not work with Sonos products released after May 2020, which includes the new Arc, Five, and Sub, its App Store listing notes.

Sonos breaks down which app is compatible with which product (Sonos) You can use both the S1 and S2 app on the same phone, network and in the same house – but you can’t pair them together.

Here’s something else worth keeping in mind: beginning with today’s three product announcements, new Sonos hardware will only work on the S2 platform and is incompatible with S1 altogether.

Sonos allows you this access by means of their wireless controller - see our Sonos review on The Bleeding Edge. Simply plug and play the controller in any of up to 32 rooms in your home or office, and ...

You don't actually have to do anything if you do have affected Sonos kit neither. The Sonos S1 controller app will continue to work as usual.