After months of uncertainty, D-day has finally rolled around and started today, millions of WhatsApp users are expected to lose support. They will not be able to use WhatsApp.

Is WhatsApp down for you? If it is, then this may well be the reason. After months of uncertainty, D-day has finally rolled around and starting today, millions of WhatsApp users are expected to lose support. In effect, their WhatsApp will stop working on their phones. The WhatsApp block is expected to be implemented against all those people with old operating software that the messenger app no longer wants to provide support to simply because they demand and use up too much of its resources, they are not safe anymore and they cannot make use of the numerous new features that WhatsApp has rolled out for users.

In effect, if your phone does not meet the requirements of WhatsApp, you are toast. The problem is not with the phones, they may be working perfectly all right; the problem is with the updated software. Having said that, users can try and update their phones. What WhatsApp requires, it has been revealed in a statement.

"We provide support for and recommend using the following devices: Android running OS 4.1 and newer. iPhone running iOS 10 and newer KaiOS 2.5.0 and newer, including JioPhone and JioPhone 2." All those phones that are not on these or higher software versions will not get WhatsApp support.

So, the first thing that users with old phones should do is check the list provided below and see if the name of their phone is mentioned. If yes, then they will need to take action themselves to get back their WhatsApp account. Of course, they could also migrate to rival messenger apps like Telegram and Signal. However, that may not be easy or feasible simply because most users' friends, family and colleagues are on WhatsApp - the world's largest messenger app with over 2 billion downloads.

The deadline that WhatsApp has provided mentions the date as November 1, 2021 and that is today. So quickly check here the list of phones that will lose WhatsApp support today.

List of phones on which WhatsApp will stop working

Apple: iPhone 6, iPhone 6s plus, iPhone SE

LG: Lucid 2, Optimus F7, Optimus F5, Optimus L3 II, Dual Optimus L5, Best L5 II, Optimus L5, Dual Best L3 II, Optimus L7, Optimus L7, Dual Best L7 II, Optimus F6, Enact Optimus F3, Best L4 II, Best L2 II, Optimus Nitro HD, Optimus 4X HD and Optimus F3Q.

Huawei: Ascend G740, Ascend Mate, Ascend D Quad XL, Ascend D1 Quad XL, Ascend P1 S, and Ascend D2.

Samsung: Galaxy Trend Lite, Galaxy Trend II, Galaxy SII, Galaxy S3 mini, Galaxy Xcover 2, Galaxy Core and Galaxy Ace 2.

ZTE: Grand S Flex, ZTE V956, Grand X Quad V987 and Grand Memo.

Sony: Xperia Miro, Xperia Neo L, and Xperia Arc S.

Others: Alcatel, Archos 53 Platinum, HTC Desire 500, Caterpillar Cat B15, Wiko Cink Five, and Wiko Darknight, Lenovo A820 UMi X2, Run F1, THL W8.

How to know your phone's OS version

1. Go to your phone's Settings panel.

2. Click on About Phone.

3. Click on Android Version

How to Update your Android OS.

1. Open Settings.

2. Go to About Phone.

4. Click on Check for Updates tab.

5. Click on Update button.

If you are lucky, your phone will update itself to a higher software version. You will have to reboot the phone once the installation is complete.

How to update Apple iPhone to meet WhatsApp support requirements

Go to Settings> General>Software update>Instal.

Once there, pick the option.