Your Old Devices Depend on Dying Sensors. The Silicon Labs Incident Proves It
cambridge.orgThe end of life notification for these chips were issued in May of 2022, with final orders by December 2022 [1]. The chip itself from what I can see at a glance has unremarkable specs compared to newer ones (all of TI's offerings have better relative humidity accuracy), but of course needing to redo a PCB design and firmware is annoying.
[1] https://www.silabs.com/documents/public/pcns/2205311264-End-...
KTY84 temperature sensors come to my mind too. But even software, look at the CR,LF thing. This is from before computers had screens and it's still kind of a thing / different between Linux, Mac and Windows (ok, 2026 most editors can handle it)