There is a cut-off date after which a model does not receive any further updates, and the countdown starts with the first released unit: https://www.theregister

There is a cut-off date after which a model does not receive any further updates, and the countdown starts with the first released unit: https://www.theregister.com/2019/08/22/buying_a_chromebook_dont_forget_to_check_when_it_expires/ https://www.theregister.com/2019/08/22/buying_a_chromebook_d... It is unfortunate if you get yours eg. one year before the end of the prescribed lifecycle.