Ever since the latest minecraft pe update, I can't join any servers?

Okay so I updated minecraft pe because i just realized there was one available. So when I updated, it worked well. But I can't join servers? Why can't I join any minecraft pe servers? What is going on? On each server on google it says they have updated too so why can't I join?

You may have updated to the Windows 10 version or 1.9 editions of MC. These are not supported by most servers as they currently support 1.8.8 as the current Vanilla MC standard.