You won't be able to use WhatsApp on the following platforms for:
- All Windows Phone operating systems after December 31, 2019
- Android versions 2.3.7 and older after February 1, 2020
- iPhone iOS 7 and older after February 1, 2020
Note: Because we will no longer actively develop for these platforms, some features may stop functioning at any time.
That last sentence doesn't bode well, but I think there's a good chance that the client will carry on working for the most part, for the rest of the year.
Again, I don't think we could have asked for more from Whatsapp - matching the status of Windows phone users seems to have been a good compromise.
There have been rumours of a true native UWP (Windows 10) Whatsapp client, but I think we'd have had this by now if it was real. And, with Facebook owning Whatsapp, I'm more sure than ever - Facebook has been terrible in the UWP world, never going further than a badly ported version of their iOS codebase.
PS. Unigram (Telegram) (shown below) is a more than capable replacement, though re-educating family and friends to use Telegram is a whole other kettle of fish, of course!