Update to obsolete

Is Amazon still updating the software on your Kindle? My Kindle Fire stopped supporting the Sonos app recently, but this was multiple years after Amazon stopped updating the software on the device, rendering it increasingly obsolete.

Ryan said you should get a warning email and a notification in app inbox

I spoke to amazon - they said the software was up to date, but I don't know more than that. I've not had any problem with anything else on the fire not working / stopping working / not having an up to date version - ie nothing else that I use has become obsolete or says that the fire isn't fine.
I do understand that new features might not be available - my problem is that what was working now no longer does - the update took away my being able to use all my Sonos speakers.
Re the email - the customer service person that I spoke to at Sonos also mentioned that there should have been an email - and I went back through my inbox and spam and there wasn't one.
When the app had a message that it needed to update (on the fire - ie as I turned it on) it did not say that doing the update would / could / might... stop it working - it was just a bland - time to update message.

This email business is quite new, and is asking a lot, that every users different controllers are listed correctly and that sonos can tell the update will kill it.
No one has reported it working correctly yet AFAIK.

But why does an update "kill" a functioning thing? This is what I do not understand - maybe make no changes but the update shouldn't shut down a good system - and with no warning or anyway at all to maintain function.

I now can only use my soundbar with the volume on the TV and my speaker comes on as an alarm clock - but I can't even change the time it comes on.

And regarding the email not listing different controllers - there was no email! There was no warning that doing an update would stop the only way to control the sonos things.

Anyway this message wasn't meant to be a moan - I was hoping someone would know how to fix this - how can the previous app be restored, maybe there's webpage that could help? i'm not happy to buy another device simply to control the sosos - especially because if they do this once it could be an ongoing problem. The speaker and sound bar are expensive in the first place without have in to buy a dedicated control device every [insert unknown time period here] when the kindle fire works for everything else! It is not so old that it doesn't work - all other apps and software that I use on it are completely fine.

This is sonos policy to kill controllers, they are old, move on is their moto. I too was livid when they killed my ipods.
The email is supposed to be targeted to controllers registered to your account that the update could kill. I dought this is working hence you got no email, or it is only for iOS and android phones.......who knows

You cannot go backwards with sonos, once you or someone in your house has accepted an update. Look on the cr100 thread.

Thank you paulrw for clearing that up - so it is now non-functioning and there's nothing I can do . Wow!

You now have the full sonos experience :D
Android devices tend to have a longer sonos lifecyle, or get new iOS phone every 3 years or so, or use sonophone 3rd party app on it.

I think the message is that older devices and OSes that are no longer supported by their manufacturers will cease to be supported by the Sonos App, but this is usually years after manufacturer support ends. This is no different to lots of other apps.

In my experience in the game business, it's exactly the same. We would support devices as long as they were supported by the manufacturer with software updates, once that stopped, we had no more access to support from the manufacturer, so we stopped releasing updates for that version of the OS, forcing the few people on the old unsupported OS to update.