WhatsApp is yours FAQ page However, it has been said that WhatsApp will no longer support iOS 9 or earlier. You need to have iOS 10 or later on your phone to use WhatsApp on iPhone. WhatsApp wrote on its FAQ page, “To get a better experience of all the features of WhatsApp, we recommend you use the latest version of iOS on your phone. Learn how to update your iPhone software on the Apple Support website”.
Not only this, it is also available on WhatsApp More written “We do not prohibit the use of jailbroken and unlocked devices. However, these changes may affect the ability of your device to work. IPhone We do not support phones that change the operating system of the iPhone.
Let us know if the iPhone 4S is currently working on iOS 9. The company did not offer iOS 10 in this series. It shows that users running iPhone 4S or earlier models will no longer be able to run WhatsApp. If you use models before the iPhone 5, we suggest you back up your chats on iCloud. You can then restore them to the latest version of the device.
How to backup WhatsApp on iCloud
You can backup your WhatsApp chats to iCloud using the steps outlined below and restore them to a new device.
To manually back up your chats at any time, you need to go to WhatsApp’s ‘Settings’ and tap on ‘Chats’. Then tap ‘Chat Backup’ and tap ‘Back up now’.