Microsoft Build is an annual conference event held by Microsoft, aimed towards software engineers and developers. First held in 2011. The event has been held at a large Convention center, or purpose-built meeting space on the Microsoft Campus. The Keynote on the first day has been led by the Microsoft CEO addressing the press and developers. It has been the place to announce the general technology milestones for developers. There are breakout sessions conducted by engineers and program managers, most often Microsoft employees representing their particular initiatives. The keynote on the second day often includes deeper dives into technology. Thousands of developers and technologists from all over the world attend.