[agret]

There are a lot of routers using GPL code that have open source firmware available (ddwrt,openwrt,tomato,etc.) I think once support for a device ends it should be mandated that the company release the source code for future development.

There is a worrying increase in the amount of IoT devices that will remain forever unpatched due to the (cheap overseas) manufacturers never updating them or ending support for them.

[swinglock]

Make that one year before ending support, so there is both time to prepare and incentive to open source early.