Robert “Uncle Bob” Martin looks into XP’s rearviewmirror, lessons learned, and the current status of Agile development. It has been 10 years since Extreme Programming broke upon our industry. In that time we have seen the rise of the Agile movement, and the gold rush for Scrum certification. We have seen the concept of testing do a complete reversal in emphasis; and shift away from heavy planning. But what have we learned? Do we really all program in pairs? Do we really all write our tests first? Do Agile projects really fare better than others? Do we have enough data now to separate the truth from the myth? And why, after all this time, does it still dominate our conferences and conversations. Isn’t there something new to talk about?