[Book Review] Why do you need to read the Spring in Action, Fourth, Fifth, and Sixth Editions together?

Compare different editions of the Spring in Action book

Different editions of the Spring in Action book

∘ Main differences between Sixth and Fifth edition
∘ What happens if we don't read the Fourth edition?
· Conclusion

Recently I bought Spring in Action, Sixth Edition, It is a Manning Early Access Program (MEAP) book and being completed chapter by chapter.

Just like the previous edition (Fifth Edition), this great book from Craig Walls concentrates on Spring Boot (Spring Boot 2.4 and Spring 5.3) and has written less about Spring Framework.

Main differences between Sixth and Fifth edition

• Upgraded content to Spring Boot 2.4
• Add a chapter for working with NoSQL databases (Cassandra and MongoDB)
• Add a chapter for REST API security
• Add a chapter for working with RSocket reactively
• Remove the Cloud-native Spring part! (3 chapter- Discovering services, Managing configuration, and Handling failure and latency)

As you can see, the Author has completely removed related chapters to Spring Cloud: