Hi Spring fans and welcome to another installment of This Week in Spring! This week I’m in Krakow, Poland for the epic Devoxx PL event and then it’s off to Luxembourg for the VoxxedDays Luxembourg event! If you’re around, don’t hesitate to say hi.

• Spring Framework lead Juergen Hoeller just announced Spring Framework 5.0 RC2. The new release is a major revision of RC1, refactoring the reactive support and path pattern parsing. It introduces JSR 305 @Nullable annotations into the codebase.
• Spring Data Release Train Kay M4 Released: Spring Data ninja Mark Paluch just announced Spring Data Train Kay M4, packed with new features and updates. Get the bits now!
• Spring IO Platform Athens-SR6: Spring IO Platform lead Andy Wilkinson has just announced Spring IO Platform Athens-SR6, available from repo.spring.io and Maven Central. The new maintenance release includes Spring Boot 1.4.7, Spring Framework 4.3.9, Spring Integration 4.3.10, Spring REST Docs 1.1.3, Spring Security OAuth 2.0.14, Spring Web Flow 2.4.5, and Spring Cloud Connectors 1.2.4, among many other things.
• Spring IO Platform Brussels-SR3: Not one to rest on his laurels, Andy also released Spring IO Platform Brussels-SR3, which includes updates a large number of supporting libraries. Get the bits now!
• Spring Boot 2.0.0.M2 Available Now: Spring Boot ninja Stéphane Nicoll just announced Spring Boot 2.0M2, following on Spring Framework RC2.
• Spring Session 2.0.0 M2 Released: Spring Session lead Rob Winch just announced Spring Session 2.0.0.M2. The new release ensures compatibility with Spring Framework 5.0.0.RC2 and Spring Data Kay-M4, both baselines for the new release.
• Spring Security lead Rob Winch just announced Spring Security 5.0. The new release includes improved reactive support Java configuration and improved WebClient test support.
• Greg Turnquist, now lead of Spring Session MongoDB, has just announced 2.0.0.M1
• What if an application could automatically repel attackers by rotating its access credentials every day, thereby making every stolen password useless in a short amount of time? That’s the idea behind CredHub, a new feature introduced for Pivotal Cloud Foundry today. Read the rest of this VentureBeat article for more.
• Dormain Drewitz chimes in with a look at some Secrets of successful Cloud Foundry users from the recent Cloud Foundry Summit.
• Jagdish Mirani looks at how HCSC uses Gemfire to help integrate legacy applications) in this post.
• Mark Heckler looks at filtering HTTP requests by header type in this concise post.
• Get preview chapters of Duncan Winn’s new book on Cloud Foundry from DynaTrace.
• TechCrunch looks at Cloud Foundry’s dominance in the enterprise: One of the things I loved was the insight that more than half of the Fortune 500 are using Cloud Foundry — wow!
• Tim Schimandle continues his series in this look at integrating an Angular 4 front end with his Spring Cloud backend.
• Tim Schimandle also wrote a nice introduction to distributed tracing with Spring Cloud Sleuth and Zipkin in this post.
• Tim Schimandle looks securing Spring Cloud Services.
• Tim Schimandle looks at how Spring Cloud applications bootstrap in this nice post.
• Mark Heckler does a great job introducing the fantastic Spring Boot Actuator integrations in Pivotal Cloud Foundry 1.1.