And now we’re back where we started: Spring Boot 3.4! This release is what pulls everything together. When you look at Spring Boot, remember that it normalizes the integration of all the projects it assembles and tries, wherever possible, to smooth out whatever integration issues might arise from using those projects together. In addition, it provides facilities that benefit users of all those other frameworks.

Case in point: when we introduced GraalVM native image support in Spring Framework 6 and Spring Boot 3, it was delivered in three tranches. One: a component model, lifecycle, and core…

The Spring Framework 6.2 release notes provide a much more detailed look at all the new features. I won’t rehash all of them here, but here are some of the features that caught my eye:

• Improved generic type safety in auto wiring sorting.
• Smarter, more optimized Spring Expression Language expressions.
• More efficient handling of resources in web applications, as well as in the WebJars support.
• Refinements to Spring’s JMS support and STOMP-over-WebSocket support.
• Improved testing support with the new HTMLUnit dependency, AssertJ-style MvcTester for Spring MVC tests, and much improved mocked beans in tests.
• Support the concept of @Fallback beans, essentially the mirror image of @Primary beans.
• Background bean initialization.
• Improved binding of data to constructors.
• …

The release announcement blog does a good job highlighting some of the many features in Spring Data 2024.1. Remember: Spring Data is an umbrella project, aggregating modules supporting, among other things, Couchbase, Redis, MongoDB, JDBC, R2DBC, Neo4J, Apache Cassandra, and countless other data stores. It’s the easiest way to connect your data stores to your applications. And indeed, we could write a small book with all the new features here!

Here are some of the features that caught my eye.

• A new Repository fragments SPI lets any arbitrary .jar on the classpath, or indeed code in another package, contribute extensions to the Spring Data repository mechanism via the Spring.factories service factory mechanism
• much-reduced query parsing overhead in Spring Data JPA
• expiration for @TimeSeries in Spring Data MongoDB
• keyspace qualification for tables and user-defined types in Spring Data for Apache Cassandra
• Refined CQL generation with CqlGenerator in Spring Data Cassandra
• Jedis Lua scripting support in transaction and pipeline operations in Spring Data Redis
• Customize the JedisClientConfig with the JedisClientConfigBuilderCustomizer…

Spring Integration 6.4 is your one-stop shop for all matters of enterprise application integration. So it supports numerous messaging and integration patterns and even more numerous adapters for all manner of technologies - SFTP, FTP, Redis, Apache Pulsar, Apache Kafka, JDBC, TCP/IP, etc. So, as you might have surmised, there’s just no way to keep up with them. The release notes do a pretty good job, so I’ll list some of my favorites.

• The remote file system inbound adapters now use the clearFetchedCache() method to remove references from the cache for unprocessed remote files.
• The Spring Integration distributed lock mechanism has a method - LockRepository#delete - that now returns the result of removing ownership of a distributed lock.
• similarly, the Redis-backed implementation of distributed locks - RedisLockRegistry - throws a ConcurrentModificationException if the ownership of the lock is expired.
• there is now a convenient Consumer<SshClient> to allow for further customization of the internal SshClient
• …

Spring Security 6.4.1 is your one-stop shop for authenticated and authorized items, and this release is a doozie! The release notes brim with the possibilities!

The release notes are a lie!

I mean, they’re not a lie. They just don’t do a good job of capturing and conveying how awesome this release is. There are more user-facing toys in this release than in many previous releases. This might be my favorite Spring Security release since at least it sprouted a Java configuration DSL!

Look at those release notes. See those puny sections on Passkeys and One-Time Token Login? Yah. That’s the lie…

When Spring Boot first came out, I would tell people at talks that Spring Boot is like pair programming with the Spring team. It provided the convention-over-configuration to allow you to stand up infrastructure and get something going quickly. But it didn’t provide much architectural guidance. No "rails," as it were, regarding how you structured your application. And this was OK, I think, since Spring Boot isn’t a one-trick pony. You can use it for CLIs, monoliths, web applications, batch jobs, streaming and integration processors, microservices, GRPC services, Kubernetes operators, etc…

After half a year of development, Spring Modulith 1.3 GA has been released. It is packed with new features, improvements, and – best of all – community contributions. Let me walk you through some of the most interesting ones.

Baseline Upgrades

As usual, a new minor version of Spring Modulith upgrades to the latest releases of both Spring Boot and Spring Framework, 3.4 and 6.2 respectively. That said, we still remain compatible with the previous generations of each of them so that you can selectively upgrade to Spring Modulith 1.3 without having to the latest Boot and Framework versions.

The…

On behalf of the community, I am delighted to announce the avability of Spring Modulith 1.3 GA. After 6 months of development, the release ships with the following highlights:

• Upgrades to Spring Boot 3.4 and Spring Framework 6.2.
• Support for nested application modules and external application module contributions.
• Optimized integration test execution via a JUnit Jupiter extension.
• New deleting and archiving event publication completion modes.
• By-ID event publication completion significantly improving performance.
• Support for MariaDB, Oracle DB and Microsoft SQL Server in the JDBC-based Event Publication Registry.
• Event externalization into Spring's MessageChannel abstraction to, for example trigger Spring Integration flows.
• …

Hi, Spring fans! Happy Spring Boot 3.4.0 release day to those who celebrate! Today I'm joined by both Terence Lee, from Heroku, and my friend DaShaun Carter, and we talk about platforms, buildpacks, and more. #heroku #paas #buildpacks,