The instant messaging program WhatsApp will evaluate the supported systems from time to time to ensure that it can provide users with the best experience. When they find that certain systems and versions are no longer widely circulated or cannot meet WhatsApp’s security requirements, they will announce that they will stop supporting these systems.
Stop supporting old systems
Starting from today (October 24), WhatsApp will stop supporting phones with Android OS 5.0 or below, as well as iPhones with iOS 12 and below, which means these phones will not receive WhatsApp updates, including feature and security fixes. . iPhone users can go to Settings > General > About to check the system version, while Android phone users only need to go to Settings > About phone > Software information to check.
Check cell phones for seniors
When it is confirmed that the system version of the mobile phone cannot be upgraded, the only thing the user can do to continue using WhatsApp is to change the phone. Many elderly people use old mobile phones and may not know how to update their mobile phones. As a result, the system remains on an old version. Family members should check the system version for them to avoid being unable to contact them through WhatsApp.
source:gizmochina