Digging into WordPress version 3.4 is here! The DiW v3.4 update covers WordPress 3.4, with new and revised content throughout the book. This is the book's 10th Edition, making version 3.4 more fluid, focused and current than ever. It's also a free update to everyone who owns either version of the book.
Just a quick note: we're currently updating the book to version 3.4, and will be ordering a fresh batch of printed books soon. In the meantime, we're setting up a notification list for people who want to know when the new books are back in stock.