Facebook-owned messaging app WhatsApp has announced that it will end support on some old Android and iOS smartphones from 2021.

As per reports, WhatsApp is ending support for Android phones and iPhones that run on a dated operating system. The app will stop working on smartphones that are not running on at least iOS 9 or Android 4.0.3 operating systems.

The iPhone models include all iPhone 4 and earlier models. However, if you have iPhone 4S, iPhone 5, iPhone 5S, iPhone 5C, iPhone 6, and iPhone 6S, you will have to update your phone to iOS 9 or later if you want to continue using WhatsApp.

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The iPhone 6S, 6 Plus, and iPhone SE first generation can be updated to iOS 14.

Similary, Android phones that do not have Android 4.0.3 will lose access to WhatsApp. This includes models like HTC Desire, LG Optimus Black, Motorola Droid Razr, the Samsung Galaxy S2 and some other Android phones.

Some users may still continue to access WhatsApp on their older smartphones as their operating systems may have received a patch with an update

How to check the operating system running on your phone?

In order to find out what operating system your phone is running on, iPhone users can go to Settings > General > Information, where you will find information about the software version on your iPhone. 

On the other hand, Android users can go to Settings > About Phone to see which Android version their smartphone is running on.