Millions of people may no longer be able to use WhatsApp on their phones from next week - meaning you could lose access to messages, photos and contacts.
The popular messaging app, which is owned by Facebook, is pulling support for some major smartphones.
The app will be blocked on phones that are not updated to a certain level as they will no longer be able to support the software.
43 Android and iOS models will lose the ability to send messages and pictures or make video calls on WhatsApp from Monday 1 November, reports the Daily Star.
That includes any phone with Android 4.0.4 or earlier installed or any iPhone with the iOS 9 software or earlier.
The following smartphones will lose access to the popular messaging app:
- Sony Xperia
- LG Optimus F7, F5, L3 II Dual, F7 II, F5 II
- Huawei Ascend Mate and Ascend D2
- Apple iPhone SE, 6S, and 6S Plus
- Samsung Galaxy S3 Mini, Trend II, Trend Lite, Core, Ace 2
Only certain handsets support newer software, such as the six-year-old iPhone 6S Plus which will be eligible for iOS 15 this autumn.
However if you update your smartphone to the latest version, you should be okay.
Updating your phone to the latest OS can also help to keep you safe against security risks, reports the Liverpool Echo.
In fact, the best way to ensure WhatsApp and other apps will continue to function is to always keep your phone software up to date.
To update your phone, you need to look in the general settings to download and install the upgrade.
It is ideal to have WiFi enabled when doing so unless you are ok with using your phone data, but if it is a large download then it could be costly.
If your phone is too old to update the software then you may want to think about upgrading to a newer model in order to continue to use the app.