Outdated Client when connecting to Realm

I cannot connect to my realm on any device. From Windows 10, Minecraft PE, or Minecraft for Gear VR, they all say outdated client! The other day my friend was playing from his Android phone and I was in the Minecraft Beta on my Android phone, and after this, nobody has been able to join the server as we all get outdated client. I've tried Resetting the server and closing and opening it and nothing I do alllows anyone to get back in to it and we all get the Outdated Client message.