No, they don't need to keep the software up to date, they just have to ensure that the device continues working. Almost everything that uses electricity has a b

No, they don't need to keep the software up to date, they just have to ensure that the device continues working. Almost everything that uses electricity has a bit of software. Most devices don't need any updates. At the very least they need to enable somebody else to keep the devices running, for example by open sourcing the infra needed to do so.