Dear Spring community,

It is my pleasure to announce that Spring Framework 5.1 is generally available from repo.spring.io as well as Maven Central now! Check out our recently updated docs...

• What's New in Spring Framework 5.1
• Upgrading to Spring Framework 5.1
• Our revised reference documentation

Spring Framework 5.1 requires JDK 8 or higher and specifically supports JDK 11 as the next long-term support release. It comes with initial refinements for GraalVM compatibility and deeply integrates with the recently released Reactor Californium and Hibernate ORM 5.3.

The core container introduces functional bean definition refinements for Java as well as Kotlin, including a functional bean retrieval style. Spring's internal use of reflection is optimized for improved startup time and less heap memory consumption now.

The web application stack provides a human-friendly debug log experience from the endpoints down to the core container. It features a DSL-style builder for functional web endpoints and extends the WebFlux HTTP/2 support offering to the Netty runtime.

As of next week's Spring Boot 2.1 M4 release, you'll be able to consume Spring Framework 5.1 GA through start.spring.io! The upcoming Spring Boot 2.1 RC1 in mid October is expected to ship against Spring Framework 5.1.1 then, so keep the feedback coming...

Cheers, Juergen