While many of us writing our year-end wrap-ups, Matt Asay saunters into the room, kindly requests that we “hold his beer”, and proceeds to write his decade-end wrap-up.

We’re about to conclude another decade of open source, and what a long, strange trip it has been. Reading back through predictions made in 2009, no one had the foggiest clue that GitHub would change software development forever (and for everyone), or that Microsoft would go from open source pariah to the world’s largest contributor, or a host of other dramatic changes that became the new normal during a decade that was anything but normal.

We are all open sourcerors now as we round out the decade. Let’s look back at some of the most significant open source innovations that got us here.