One of the most popular instant messaging mobile applications WhatsApp is going to withdraw support from some iPhone and Android devices. Starting from January 1st WhatsApp will stop its services for users running an older version of iOS or Android mobile operating system. Android devices running the Android version older than 4.0.3 and iPhone running OS version older than iOS 9 will not get any services from WhatsApp.
There might be very few mobile phone users who are having such an old version of Android and iOS but still if you are not running the Android OS 4.0.3 and newer, iPhone iOS 9 and newer then you might have to consider upgrading your device to keep using the WhatsApp services. And in case, you are still not ready to switch or upgrade your mobile phone then you should avoid updating the WhatsApp; you can try using the outdated WhatsApp as long as it works for your device.
“Once you have one of these devices, install WhatsApp and register your phone number. WhatsApp can only be activated with one phone number on one device at a time. Furthermore, there’s no option to transfer your chat history between platforms. However, we provide the option to export your chat history as an email attachment. Please note, the export chat isn’t supported in Germany,” WhatsApp says in its support page.
Users of iPhone 4 and earlier may not be able to use the WhatsApp because they can not upgrade the OS whereas those who are using iPhone 4S, iPhone 5, iPhone 5S, iPhone 5C, iPhone 6, and iPhone 6S, will have to update their phones with either iOS 9 or later to continue using WhatsApp. Android phones like HTC Desire, LG Optimus Black, Motorola Droid Razr, Samsung Galaxy S2 are the ones that may not be running Android OS 4.0.3 and newer so these devices will stop getting WhatsApp services from January 1st 2021.
If you are not sure about the OS version on your phone then go to the setting on your phone and check the about phone section on Android and for iPhone Settings > General > Information.