12 Days of Open Source

What this post added

This post, "12 Days of Open Source," provides a year-end review of Meta's open-source contributions in 2014. It highlights the launch of 107 new projects, the popularity of iOS and JavaScript projects like React and Pop, the significant number of external developer contributions (over 1,000), and improvements in code review speed (average pull request age decreased by 3x). It also mentions contributions to security with osquery and Conceal, and participation in events like OSCON. This post significantly expands on Meta's open-source strategy and its impact on the broader engineering community.