*** WORK IN PROGRESS *** If you have been using the Spring Framework for some time, you will be aware that Spring has undergone two major revisions: Spring 2.0, released in October 2006, and Spring 2.5, released in November 2007. The Spring Framework is now based on Java 5 and Java 6 is fully supported. Furthermore, Spring is compatible with J2EE 1.4 and Java EE 5, while at the same time introducing dedicated support for Java EE 6.

The Spring reference documentation has also substantially been updated to reflect all of the changes and new features for Spring 3.0. While every effort has been made to ensure that there are no errors in this documentation, some errors may nevertheless have crept in. If you do spot any typos or even more serious errors, and you can spare a few cycles during lunch, please do bring the error to the attention of the Spring team by raising an issue.