Although this book project was initiated when Spring Integration was at version 1.0, we ended up making changes throughout to keep up with the latest major version of the framework: 2.0. In fact, our code sample repository actually uses the latest minor version, 2.1, which is a superset of 2.0.
posted 3 years ago
The book covers recent versions and describes primarily the philosophy behind the framework. It should be more than a reference documentation (as you can always find that online).