Nest 1st gen and 2nd gen thermostats no longer supported from Oct 25

This pisses me off to no end. I paid a lot... I expected my Nest gear to work for as long as I own my house. I paid extra to get someone to install it with my home system. Now I see that my Nest Protect is saying it needs to be changed... not some small module... the whole thing. Next will be my thermostats... I can't understand why I'd pay for them again.

Agreed, I bought into Google mesh Wi-Fi and they updated it to remove vlan bridging which made it useless for my ISP which required that. When I reached out they gaslit me awhile before saying yeah, we nerfed you, sucks for you.