The RSpec Book Beta 8.0 was just released. This release includes a number of fixed errata and one new chapter. Yes, only one chapter, but its a doozy:

Managing Complexity in Step Definitions

This chapter introduces a random generator to the Codebreaker game. This brings up several issues that can add complexity to Cucumber scenarios, RSpec code examples, and the code we’re driving out with the aid of these tools and the BDD process. We address these issues and offer strategies to manage the complexity they introduce.