I signed off my Clojure 2011 Year in Review with the words You ain’t seen nothing yet.  Coming back for 2012, all I can think of is Wow, what a year!  I’m happy to say that Clojure in 2012 exceeded even my wildest dreams. 

2012 was the year when Clojure grew up.  It lost the squeaky voice of adolescence and gained the confident baritone of a professional language.  The industry as a whole took notice, and people started making serious commitments to Clojure in both time and money. 

There was so much Clojure news in 2012 that I can’t even begin to cover it all.  I’m sure I’ve missed scores of important and exciting projects.  But here are the ones that came to mind: