WhatsApp Will Only Work On Android 4.1+ and iOS 10+ from November 1, 2021

WhatsApp will stop working on Android 4.1, iOS 10+ phones from November 1, 2021. On the KaiOS front, only 2.5.0 (Jio Phone 1 and 2). You'll be automatically logged out of your account after November 1 if you fail to upgrade your phone. All the best!