Further to several notices issued lower versions of Android and iPhones users, including Windows phone users, WhatsApp has again warned that the affected phones will no longer use WhatsApp after the next 5 months.
This means that all Android smartphones that runs on Android 2.3.7 and iPhones running on iOS7 won't access WhatsApp with effect from February 1, 2020.
As indicated at the most recently refreshed FAQ section of WhatsApp, users of these affected phones will never again have the option to create new accounts, nor would they have access to verify existing accounts.
WhatsApp tipster, Wabetainfo, indicated that WhatsApp will likewise not support phones running on iOS8 or lower. In any case, they can use WhatsApp on iOS8 for now, however, they will not have the option to verify accounts in the event that they reinstall it. Devices running on iOS8 will be completely removed by February 1, 2020.
You should also know that after December 31, 2019, WhatsApp will not be accessible on all Windows Phone.
This warning is coming so you can start preparing to get yourself WhatsApp supported smartphone before 2020.