Welcome to the new version of the Cognitect blog. We're centralizing many of our blogs to this new location.  For our longtime followers, you can still reach the archives of posts at our older sites (http://thinkrelevance.com/blog and http://clojure.com/blog), which will remain online for some time. However, new posts about Cognitect, Clojure, the Cognicast, and more will be found here. The Datomic blog will continue to be a source of release announcements and other news specific to Datomic.