It was added recently. There is a lot of activity in the language development leading to what I expect to be an exciting Clojure 1.1 [Edit] A link to the lang

It was added recently. There is a lot of activity in the language development leading to what I expect to be an exciting Clojure 1.1 [Edit] A link to the language definition: http://clojure.org/special_forms#toc10 http://clojure.org/special_forms#toc10 Another link to a small but useful (for me, anyway) discussion: http://blog.fogus.me/2009/12/21/clojures-pre-and-post/ http://blog.fogus.me/2009/12/21/clojures-pre-and-post/