For security reasons, it is recommended to use the latest versions of Apps on your device. You can find below the steps to manuallu update WhatsApp on iPhone and Android Phone.
Install WhatsApp Updates on iPhone & Android
WhatsApp can be downloaded and installed on an iPhone from the App store and from Google Play Store on an Android phone or tablet.
If Automatic App Updates are enabled on your device, WhatsApp should automatically download and install updates on your iPhone or Android Phone.
If Automatic App updates are not enabled, you can follow the steps below to manually Update WhatsApp on your iPhone or Android Phone.
1. Update WhatsApp on iPhone
1. Open the App Store on your iPhone and Search for WhatsApp.
2. On the next screen, tap on the Update button located next to WhatsApp Messenger.
Note: Update option will be available only if an Update is available for WhatsApp.
2. Update WhatsApp on Android Phone
If you are using an Android Phone, you can follow the steps below to ensure that you have the latest version of WhatsApp installed on your Android Phone or Tablet.
1. Open Google Play Store on your Android Phone.
2. Tap on your Profile Icon (top-right) and select Manage apps & device option in the menu that appears.
3. On the next screen, switch to Updates tab and tap on the Update button located next to WhatsApp.
Note: You will find the update button only if an update is available.