How to remove upgrade notification from S1?

I have the same problem.  The S1 app is constantly nagging to upgrade to S2.  

I have mostly S1 hardware that’s doing great and none of the S2 features seem of any use to me.

At this point I would sooner get rid of my S2 hardware than me S1 hardware.

Make it stop.

I found over in another thread that you need to get a few menus deep into the upgrade process to disable the upgrade process.  <shrug>  Not how I would’ve designed it but it seems to work.

That at least works for the folks who still have some S1 gear.  Not sure if it works for people who only have S2 gear.  Though honestly I think I would just do the upgrade if I had all S2 gear.

I've just bought an S1 ZP90, will try this when it turns up..

@James L. This suggestion does not work. When I tap the “It’s time to update” notification the only options I have are “Update automatically” and “Update now.” 

How do I make the notification go away in IOS 14.4 ?

Still no answer from @Sonos  or @James L. about how to fix the app since the “solutions” they are giving don’t work?

Well I've installed my ZP90 tonight, done (and failed) a compatibility check for S2 and the message has now gone.

Will see how long it takes to come back!.

There is a recent update to the S1 app (on Android at least).

Any update here? I have a significant fleet of Sonos devices and I’m not gonna change all the older generation devices. The S2 message is beyond annoying, and completely ignores the Play 1, Sonos Amp Gen 1 and other devices that will not support S2. The upgrade message is misleading users to believe they can safely move on to S2, and seem to be based on the availability of S2 systems on the network more than the detection of older incompatible devices. I’m up-to-date on S1 on all devices, and still got the message in the last 24h to upgrade to S2 despite incompatible devices being online and part of the mesh.

The Play:1 is compatible with S2.  So are some Connect:Amps.  Is your Play:5 definitely a gen 1?

You’re absolutely right - it’s the Connect:Amp and Play:5 that are incompatible. The problem remains whole - S2 should not be proposed based on the connected devices.

If you go into the S1 app settings, System, System Tools, is there a ‘compatibility checker’ available, as noted earlier in the thread.  This hasn’t worked for everyone, but it has for some.