Datomic

A fundamental rethinking of how databases work, Datomic is an immutable database server with fascinating transactional and deployment characteristics. One of the common headaches on agile projects is managing database migrations, especially restoring previous states. Datomic makes the need for migrations go away - every version of the data (and schema) is preserved by the database. While still evolving, we appreciate Datomic’s boldness of vision.