Come 2021, the widely popular messaging platform WhatsApp will stop working on a number of older iPhones and Android smartphones. Few may lose access altogether while others may not be able to use a few features on the Facebook-owned platform.

Old smartphone users who have not upgraded to iOS 9 or above or Android 4.0.3 or above will not be able to run WhatsApp. It is advised by the makers of the app that the users should update their devices to these versions of their operating system to keep using it. The ones who can’t update will either have to buy a new smartphone or look for alternatives to WhatsApp.

Users who are still holding on to the iPhone 4 or lower model will lose access. Similarly, if someone is using a Samsung Galaxy S2, he/she will not be able to use WhatsApp.