Messaging platform WhatsApp will no longer be available on more than 50 types of phones in a few weeks.
From 1 November WhatsApp will no longer be supported on 53 models of phones.
It will not work on Android phones running OS 4.0.4 and older, and for iPhones it requires iOS 10 or newer.
Users of Android and Apple devices have been warned to upgrade their devices or update their software.
If upgrading to a new device existing accounts will be re-enabled when entering the same phone number associated with it.
Although it’s not possible to transfer chat history between platforms, for example from Android to iPhone, people can still keep their chat history.
This can be done by exporting chat history as an email attachment before November.
People can find out what operating system their phone uses by checking it in the settings function.
WhatsApp, which is owned by Facebook regularly updates which systems it supports on its help centre.
The platform will not support Android 4.0.4 or older and iPhones which have iOS 9 or earlier.
The platform will no longer work on these phones after 1 November:
iPhone
iPhone 6iPhone 6S plusiPhone SE
Samsung
Galaxy Trend LiteGalaxy Trend IIGalaxy SIIGalaxy S3 miniGalaxy Xcover 2Galaxy CoreGalaxy Ace 2
LG
Lucid 2Optimus F7Optimus F5Optimus L3 II DualOptimus F5Optimus L5Best L5 IIOptimus L5 DualBest L3 IIOptimus L7Optimus L7 II DualBest L7 IIOptimus F6, EnactOptimus L4 II DualOptimus F3Best L4 IIBest L2 IIOptimus Nitro HDOptimus 4X HDOptimus F3Q
ZTE
ZTE V956Grand X Quad V987Grand Memo
Sony
Xperia MiroXperia Neo LXperia Arc S
Huawei
Ascend G740Ascend MateAscend D Quad XLAscend D1 Quad XLAscend P1 SAscend D2
Other smartphones
AlcatelArchos 53 PlatinumHTC Desire 500Caterpillar Cat B15Wiko Cink FiveWiko DarknightLenovo A820UMi X2Run F1THL W8