Migration to Spring Security 6

In this final chapter, we will review information relating to common migration issues when moving from Spring Security 5.x to Spring Security 6.x. We’ll spend much more time discussing the differences between these two versions because this is what most users will struggle with, as the updates from Spring Security 5.x to Spring Security 6.x contain a lot of non-passive refactoring.

At the end of the chapter, we will also highlight some of the new features that can be found in Spring Security 6.x. However, we do not explicitly cover changes from Spring Security 5.x to Spring Security 6.x. This is because by explaining the differences between this two versions, users should be able to update to Spring Security 6.x.

You may be planning to migrate an existing application to Spring Security 6.x or you may be trying to add functionality to a Spring Security 5.x application and are looking for guidance in the pages of this book. We’ll try...