[Red_Leaves_Flyy]

I’m open to considering the nuance here.

For a washing machine or refrigerator, I’d say twenty years is the minimum. For a phone or computer? I’d say at the very least five, but preferably ten years from the last sale of a new, used, or refurbished device sold by them or their authorized resellers. Require security updates for at least twice as long, or when the manufacturer can prove all devices are out of use.

[wiseleo]

There should be a standard for replaceable boards for major appliances. Compressors in fridges and motors in washers ultimately do not change. The front interface changes but that's ultimately just programming the on/off cycle for that motor.