Ale tu sa pise, ze na W10 to ma ist. Urcite nemas W8.1?

http://www.windowscentral.com/facebook-dropping-su pport-messenger-and-facebook-apps-older-windows-wi ndows-phone-versions

Here's a look at the platforms and apps affected, from Facebook's Messenger blog:

Facebook for Windows Phone.
Messenger for Windows Phone 8 and 8.1.
Facebook for Windows 8 and 8.1 desktop app.

According to both the post and a message being sent to users, Facebook plans to retire the above apps "by the end of March." That's approaching quickly and doesn't give users much time to figure out an alternative. Facebook is still maintaining pretty active development of both apps on Windows 10 and Windows 10 Mobile, so anyone using the apps there need not worry. For anyone on the cutting block, however, you'll have to upgrade your OS or to a new device if you want to keep using Facebook's apps past March. Alternatively, you could get away with using either service in a browser.