Sure, 2015 was a big year for Microsoft with Windows 10, but it was also a momentous year for the World Beyond Windows.

Valve finally launched Steam Machines with its Linux-based SteamOS. Google’s Chrome OS is increasingly colliding with Android, even as it’s conquered the classroom. Linux distributions continue pushing out stable, polished releases while work continues on new display servers, container technologies, and mobile operating systems. Even Microsoft and Apple are embracing Linux developers!

There truly were some big changes afoot in 2015. Let’s get retrospective!