> that manufacturers and retailers inform customers how long they will receive support, including software updates, for the device they are buying
and importers.
This is the usual requirement in UK law for anything like this (e.g. safety, manufacturing defects). Retailers are responsible for what they sell, and importers are responsible for what they import. If you buy it on credit the credit provider (e.g. a credit card provider) is responsible for a lot of things too (not this AFAIK, but for things like faults in what you bought).
and importers.
This is the usual requirement in UK law for anything like this (e.g. safety, manufacturing defects). Retailers are responsible for what they sell, and importers are responsible for what they import. If you buy it on credit the credit provider (e.g. a credit card provider) is responsible for a lot of things too (not this AFAIK, but for things like faults in what you bought).