Some Sonos legacy devices will stop being supported in May - SVConline
Old Sonos Speakers Received Sad News This Morning
Sonos is Killing Support for Older Smart Speakers and Devices - Thurrott.com
Sonos Ending Software Updates to Older Products in May 2020 - HiFi Buys
Sonos Arc 5.1.2 Home Theater Bundle (Black Arc, White Sub/Surrounds) Includes Sonos Arc Dolby Atmos® sound bar, Gen-3 Sub, and two Sonos One SLs at Crutchfield
What is Sonos S2 and what Sonos devices are not compatible?
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Sonos Drops Support for Older Products, Admits They're 'Stretched to Their Technical Limits' - Headphonesty
Sonos clarifies how unsupported devices will be treated | TechCrunch
Sonos will release a new app and operating system for its speakers in June - The Verge
Here's how Sonos is keeping 'legacy' devices working. There's just one catch.
Full list of current and legacy Sonos products - Reviews Technology
Legacy SONOS products to stop receiving software updates -