Check whether your smartphone needs to be updated.

Facebook announced that from 2021 it will no longer support the application WhatsApp On smartphones running Android versions up to 4.0.3 and iOS prior to 9.0.
The measure affects the entire line of iPhones 4 and earlier models.
In the case of the iPhone 4S, 5, 5S, 5C, 6 and 6S, they should be upgraded to iOS 9 to continue supporting the messaging application.
The iPhone 6S, iPhone 6S Plus and iPhone SE can be upgraded to iOS 14.
No Android, HTC Desire, LG Optimus Black, Motorola Droid Razor and Samsung Galaxy S2 users will lose support for WhatsApp.
see that?
-> Facebook can be sued for buying WhatsApp and Instagram
-> Facebook will start charging for WhatsApp
-> WhatsApp will soon have a new feature
Applications can still be used on older devices for some time, but as new WhatsApp updates are released, these apps may experience errors or lose access at any time.
Hey Facebook Recommends having a backup and migrate conversation on a device with the latest operating system.
Just use the smartphone settings screen to find the version of the operating system.
Taking information from Businessman.

Kate Grenville is a contributor to Sproutwired.com, covering a broad range of topics including news, politics, business, technology, sport, entertainment and lifestyle. She focuses on delivering clear, balanced reporting that helps readers understand current events and developments that matter to everyday life. With an emphasis on accuracy, relevance and accessibility, Kate aims to provide useful information, timely updates and engaging stories that keep audiences informed about issues shaping Australia and the wider world.