It's February 1, 2020 and that means today is the day that WhatsApp will no longer support certain older iPhones and Android smartphones.
If you own a device running iOS 7 or continue to use an Android smartphone running any OS before 2.3.7 Gingerbread you may need to upgrade to continue using the service.
Owned by social media giant Facebook, WhatsApp has been warning users of the coming changes for months, but it has been confirmed that they will officially come into effect on February 1, 2020.
For those without knowledge of which models run this operating system, it's more likely to hit those with a smartphone well over 5 years of age.
As mentioned by Daily Express, the number of people using an Android device on Gingerbread is a minuscule 0.3% of the overal number of Android devices used worldwide.
However, that is still a whopping great 7.5 million devices from the larger pool of 2.5 billion Android devices currently in circulation.
As for Apple users, there's no official figures making it far more difficult to pinpoint how many users could be impacted.
WhatsApp previously confirmed it would stop working on certain devices on December 31, 2019.
They included All Windows Phone operating systems.
An official blog post by WhatsApp told users:
“As we look ahead to our next seven years, we want to focus our efforts on the mobile platforms the vast majority of people use.
“While these mobile devices have been an important part of our story, they don't offer the kind of capabilities we need to expand our app's features in the future.
“This was a tough decision for us to make, but the right one in order to give people better ways to keep in touch with friends, family, and loved ones using WhatsApp.”
“If you use one of these affected mobile devices, we recommend upgrading to a newer Android, iPhone, or Windows Phone to continue using WhatsApp.”
The only good news is that it's all the big tech firms look set to release shiny new devices over the next 12 months - with some arriving this February.
Here are a few you might want to keep your eye on if you're thinking of upgrading
SAMSUNG GALAXY S20 -Expected launch • February
Samsung has already revealed it will be holding its famous Unpacked event on February 11.
Many are expecting the release of the new flagship Galaxy S20, with this phone getting a faster display, more power and an improved camera with a 10X optical zoom.
HUAWEI P40 PRO -Expected launch • March
Huawei will unveil a new phone in March – and that’s official. What remains a mystery is whether or not anyone in the UK will be able to buy it.
The Chinese firm’s products, left, are still banned from using Google’s popular apps and that’s a huge concern.
It’s last release, the Mate 30 Pro, never arrived here and we’ll have to wait and see what happens next.
ONEPLUS 8 -Expected release • April/May
OnePlus has already shown off its disappearing rear camera in 2020 and expect plenty more quirky ideas from the Chinese firm this year.
The OnePlus 8 could arrive as early as April and, if history repeats itself, will offer big specs at a price that will have its flagship rivals quaking in their boots.