WhatsApp has announced that it will stop working oncertain handsets by the end ofthe year as it plans tohalt the active development of software for certain cell phone models.

The phones list includes all Windows phones, Android versions 2.3.7 and older software. The most shocking on that list is the iPhone iOS 7 on which WhatsApp will stop functioning starting February 1, 2020.

Previously, the company announced that it would stop offering Nokia S60, BlackBerry OS and BlackBerry 10 as it continues to grow and wanted to focus more of its efforts on platforms that had a vast majority of users.