The Beta 3 release of Programming Clojure is available today, and includes the following additions and enhancements:

A new chapter on Multimethods.

Reorganized how code samples are formatted throughout the book. Make sure to read the new "Notation Conventions" section of the Preface.

Numerous errata fixes.

If you have purchased the Beta book, bounce over to the Pragmatic Bookshelf website and get the latest version.