For Mac and non-Windows 10 PC users, Skype Preview delivers most of the great features of our next generation mobile experience but is specifically designed with desktop in mind, to take full advantage of the larger screen. Skype Preview puts chat front and center—making this the most expressive Skype ever. Group chats are livelier with new features that improve your connection with friends and family. You can also do more together in group calls, with real-time screen and photo sharing.

Note: Skype Preview is intended for non Windows 10 computers, but if you want to install in Windows 10 you must right click on the installer (Skype-Preview-xxx.exe), go to Properties -> Compatibility Tab -> Select "Run this program in compatibility mode for Windows 8" -> Press OK. Learn more.