A.2. Choosing a Spock version

At the time of this writing, Spock has the following versions:

• Spock 1.0-groovy2.4
• Spock 1.0-groovy2.3
• Spock 1.0-groovy2.0

All versions are available in Maven Central (http://search.maven.org/) and are production-ready. The Groovy versions have little effect on Java projects. If you want to add Spock to a Groovy project, choose the matching Groovy version. In the sample code of this book, I chose the Spock version for Groovy 2.4 because it’s the latest at the time of writing.