Spring Data JDBC and R2DBC 4.0 will support Composite IDs

I'm happy to announce, that Spring Data JDBC and R2DBC finally support Composite IDs starting with version 4.0.0-M4. Most of you probably know, but just to make sure everyone has the same understanding: From the database point of view a composite id or composite key is a primary key that consists...

This Week in Spring - February 11th, 2025

Hi, Spring fans! It's almost Valentine's day, and let me just say: I love the Spring community! It's such an exciting and interesting place to be. Thank you everyone for all that you do. I'm busy preparing for ConFoo, in Montreal, Canada, and for Devnexus, in Atlanta, Georgia. If you're around be...

This Week in Spring - December 3rd, 2024

Hi, Spring fans! Welcome to another installment of This Week in Spring! It's the first week of December and I am in the amazing city of Perth, Australia. Perth, for those of you who don't know, is amazing. And well worth the journey. But it is quite the journey! 27 hours, door-to-door, from San...

What's new in Spring Modulith 1.3?

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...

This Week in Spring - October 8th, 2024

Hi, Spring fans! Welcome to another installment of This Week in Spring! I'm in Antwerp, Belgium, for the amazing Devoxx Belgium 2024 event! I am so happy to be back here, one of the best shows in the Java ecosystem! We've got a lot to get into so let's dive right in! From Spring Cloud Data Flow...

Spring Tips: Further, Faster with Spring Boot 3.3

Hi, Spring fans! In this installment we look at ways to make your applications go further, faster, with AppCDS, GraalVM, AOT on the JRE, and Project CRaC coordinate restore at checkpoint springboot java graalvm programming coding...

A Bootiful Podcast: Daniel Garnier-Moiroux on Passkeys and Spring Security

Hi, Spring fans! In this installment, I talk to my friend and colleague Daniel Garnier-Moiroux about the amazing awesome implications of passkeys in a Spring Security application...

This Week in Spring - November 14th, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! It's November 14th, and you know what that means? NINE MORE DAYS until Spring Boot 3.2 drops on the day of the US holiday of Thanksgiving, no less! Some key features include: virtual threads initial CRaC support more...

The new Spring Boot version validation and upgrade support in Spring Tools

New releases of Spring Boot are being released on a quite frequent schedule and updating your projects to newer versions of Spring Boot is something that many teams and organizations around the globe do as part of their daily work. Sometimes those upgrades are simple and easy, for example for new...

Price Reduction - Azure Spring Apps does more, costs less!

We believe in providing the most innovative cloud offerings at incredibly competitive prices. As we operate Azure Spring Apps, we continue to build efficiencies and economies of scale. We are passing those efficiencies to you. Many customers have asked us to lower the size of the base unit to mak...

A Bootiful Podcast: Fellow Java Champion and TimescaleDB developer advocate Christoph Engelbert

Hi, Spring fans! In this installment, Josh Long @starbuxman talks to fellow Java Champion and TimescaleDB developer advocate Christoph Engelbert @noctarius2k about PostgreSQL, Java, time series databases, observability, and so much more...

This Week in Spring - July 5th, 2022

Hi, Spring fans! Welcome to another installment of This Week in Spring! This weeks all sorts of weird for me. Its Tuesday! But here in the US we just celebrated the 4th of July, and I, like many Americans, took a long weekend. Took some time with the family to do a little road trip up north to...

A Bootiful Podcast: Cloud guru Tiffany Jernigan

Hi, Spring fans! In this installment, Josh Long @starbuxman talk about his first in-person conference since the pandemic descended upon us -the fabulous Devnexus 2022 show - and talks to colleague, teacher, friend, and Kubernetes legend Tiffany Jernigan @tiffanyfayj...

An update on Java 17+ adoption

As a follow-up to my blog post from last years SpringOne, it is time for an update on our Java 17+ baseline efforts! We established the new baseline on our main branches, with a few milestones out already. The feedback has been very positive, not only in terms of framework improvements but also i...

CVE-2026-41730

CVE-2026-41730...

A Bootiful Podcast: Spring Boot legend Moritz Halbritter on the latest and greatest in Spring Boot 4 and 4.1

Hi Spring fans! Spring Boot 4.1 is here and with it a ton of amazing features. I'm delighted to have had the opportunity to sit down with Moritz Halbritter, of Spring Boot and Spring Initializr fame, to talk about some of the amazing features...

cve-2026-47825 - HIGH - Spring Cloud Gateway Server Forwards Headers from Untrusted Proxies in certain situations

cve-2026-47825 - HIGH - Spring Cloud Gateway Server Forwards Headers from Untrusted Proxies in certain situations...

cve-2026-41008 - MEDIUM - Spring Security Authorization Server Open Redirect via request_uri

cve-2026-41008 - MEDIUM - Spring Security Authorization Server Open Redirect via requesturi...

cve-2026-41726 - MEDIUM - In Spring for Apache Kafka, unbounded delegate cache keyed on user-controlled, potentially malicious selector header

cve-2026-41726 - MEDIUM - In Spring for Apache Kafka, unbounded delegate cache keyed on user-controlled, potentially malicious selector header...

This Week in Spring - June 2nd, 2026

Hi, Spring fans, and welcome to another momentous installment of This Week in Spring! A lot to get into this week, but let's first take some time to address the meta: where are the May releases? If you read our May 11th post, you know they've been delayed. We wanted to speak a bit more about why ...

A Bootiful Podcast: Spring Messaging Legend Soby Chacko

Hi, Spring fans! In this installment, we talk with the legendary Soby Chacko about Apache Kafka, Spring AI, and much more! apachekafka kafka...

A Bootiful Podcast: Glenn Renfro on Java and Spring community legend and my friend - on Devnexus and more

Hi, Spring fans! In this installment I talk to the amazing Glenn Renfro about Spring Batch, Spring Integration, Spring AI, and much more — plus why you should definitely register to attend the amazing Devnexus event in Atlanta, GA!...

Introducing Spring AI Agents and Spring AI Bench

I'd like to introduce two new projects that are part of the Spring AI Community GitHub organization: Spring AI Agents, and Spring AI Bench. These two projects focus on using agentic coding tools—tools you likely already have in your enterprise. In 2025 AI coding agents have matured to the point...

New Home for Spring Integration AWS

The Spring Integration for AWS was always an independent Spring Integration extension project with its own plans and release cycles. The consumption of this single jar library has always added a complexity from the dependency management perspective. It depends not only on Spring Integration modul...

Using Spring AI 1.0.0-SNAPSHOT: Part 2 - Important Changes and Updates

Using Spring AI 1.0.0-SNAPSHOT: Part 2 - Important Changes and Updates This blog post is a continuation of our previous article Using Spring AI 1.0.0-SNAPSHOT: Important Changes and Updates, where we introduced the significant changes to artifact IDs, dependency management, and autoconfiguration ...

Hello DCO, Goodbye CLA: Simplifying Contributions to Spring

The Spring team will be rolling out a simplified contribution process that replaces the requirement to sign a Contributor License Agreement CLA with a Developer Certificate of Origin DCO. The process will start this week with Spring Framework, Spring Security, & Spring Boot and then roll out to t...

This Week in Spring - July 9th, 2024

Hi, Spring fans! Welcome to another installment of This Week in Spring! And what a week it's been! We've got a lot to get into, so let's dive right in. I quite liked this talk, Continuations: The magic behind virtual threads in Java by Balkrishna Rawool @ Spring I/O 2024 In last week's episode of...

Spring AI - Groq AI inference

Faster information processing not only inform—it transforms how we perceive and innovate. Spring AI, a powerful framework for integrating AI capabilities into Spring applications, now offers support for Groq - a blazingly fast AI inference engine with supports for Tool/Function calling. Because...

This Week in Spring - July 2nd, 2024

Hi, spring fans! Welcome to another amazing installment of This Week in Spring! In last week's installment of A Bootiful Podcast, recorded a few weeks ago at Spring IO, I talked with Spring Security legend Laur Spilca In last week's installment of Spring Tips, I looked at a number of ways you cou...

A Bootiful Podcast: Microsoft's Sandra Ahlgrimm on cloud, Java, AI, and more

Hi, Spring fans, from the amazing Spring IO conference in Barcelona, Spain! In this interview I talked to Microsoft's Sandra Ahlgrimm on all things cloud, Java, AI, and more. Also, a special and quick discussion with Spring IO founder Sergi Almar, who was last on the show in, I think, 2020!...

This Week in Spring - May 21st, 2024

Welcome to another installment of This Week in Spring! It's been yet another amazing and exciting week and with it a bevy of new releases. And of course, in about a week's time, we will find ourselves at Spring IO, ready to show a lot of these new things. Will you be there? I will! Anyway, let's...

This Week in Spring - May 7th, 2024

Hi, Spring fans! Welcome to another amazing installment of This Week in Spring! I'm in bellisima Rome, Italy, where I've just spent time in some fun meetings, and now I'm off to lovely London, UK, for Devoxx UK 2024. It's going to be amazing. If you're there, don't hesitate to say hi! I've got to...

Spring Tips: the Spring Authorization Server: securing SPAs and messaging flows

hi, Spring fans! In this installment, we continue our look at the venerable Spring Authorization Server, this time looking at how to extend its use beyond just HTTP APIs, to secure single page applications and messaging flows with OAuth...

This Week in Spring - October 17th, 2023

Hi, Spring fans! Welcome to yet another installment of This Week in Spring! It's October 17th, 2023, and I am here in Montreal, Canada, and then I'm off to Salt Lake City, Utah on Thursday for the Java User Group there. Don't miss it! We've got a lot to cover this week so let's dive right into it...

Spring Tips: Making the joyful jump to Java 21

Hi, Spring fans! Java 21 and GraalVM supporting Java 21 are at long last here! It's been a long time in coming, but Java 21 - which comes out later today on the 19th of September, 2023 - brings with it some of the most exciting new features of any Java release. In this video, I will look at some ...

This Week in Spring - August 8th, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! I'm baaaaack in the USA for the first time in more than two months, and it feels great to be home! I just concluded a tour of Asia, visiting Taipei, Taiwan Sydney, and the Blue Mountains, in Australia Seoul, S. Korea Singapor...

This Week in Spring - July 4th, 2023

Hi, Spring fans! Welcome to another installment of This Week in Spring! This week I am in sweltering, but lovely, Singapore, where I'm meeting with customers and just finished presenting at the SpringOne Tour Singapore stop. If you're in Singapore, I hope you'll join me tonight for Bootiful Sprin...

Updates on Spring Cloud Stream 4.0.0 Schema Registry Support

This blog gives an update on the Schema Registry support that is part of Spring Cloud Stream version 4.0.x. Many enterprises use a schema registry for schema evolution use cases, such as the Confluent Schema Registry. Starting with version 1.1.x of Spring Cloud Stream until 3.0.0, we provided a...

Bootiful Podcast: Spring Mad Scientist Andy Clement on SpringOne 2022, AOT, Azure Spring Apps, and more

Hi, Spring fans! In this installment, Josh Long @starbuxman talks to Spring mad scientist Andy Clement @andyclement about the new native support in Spring Boot 3, SpringOne 2022, and Azure Spring Apps, among other things...

A Bootiful Podcast: DaShaun Carter on patching, Spring Boot 4.1, and security in the world of AI

Hi Spring fans! In this installment I have the privilege to sit down with my friend DaShaun Carter to talk about patching, Spring Boot 4.1, and security in the world of AI...

cve-2026-41700 - HIGH - Cross-Site WebSocket Hijacking in Spring for GraphQL

cve-2026-41700 - HIGH - Cross-Site WebSocket Hijacking in Spring for GraphQL...

cve-2026-41697 - MEDIUM - Spring Data Relational Parameter not Escaped for Query By Example LIKE Pattern

cve-2026-41697 - MEDIUM - Spring Data Relational Parameter not Escaped for Query By Example LIKE Pattern...

cve-2026-41716 - HIGH - Spring Data web support unbounded negative-result cache keyed on attacker-supplied property names

cve-2026-41716 - HIGH - Spring Data web support unbounded negative-result cache keyed on attacker-supplied property names...

cve-2026-41717 - HIGH - Spring Data MongoDB - SpEL Expression Injection via Annotated Query Parameter Binding

cve-2026-41717 - HIGH - Spring Data MongoDB - SpEL Expression Injection via Annotated Query Parameter Binding...

cve-2026-40991 - MEDIUM - XML External Entity (XXE) injection when documenting untrusted XML content

cve-2026-40991 - MEDIUM - XML External Entity XXE injection when documenting untrusted XML content...

cve-2026-41728 - HIGH - Spring Data REST JSON Patch bypasses Jackson read-only property protection on nested objects and collections

cve-2026-41728 - HIGH - Spring Data REST JSON Patch bypasses Jackson read-only property protection on nested objects and collections...

A Bootiful Podcast: the legendary Craig Walls

Hi Spring fans! In this installment we talk to the legendary Craig Walls, author of Spring In Action , Spring AI in Action , and more!...

Spring AI Agentic Patterns (Part 4): Subagent Orchestration

Instead of one generalist agent doing everything, delegate to specialized agents. This keeps context windows focused—preventing the clutter that degrades performance. Task tool, part of the spring-ai-agent-utils toolkit, is a portable, model-agnostic Spring AI implementation inspired by Claude...

A Bootiful Podcast: Nate Schutta the fundamentals of software engineering

Hi Spring fans, and happy holidays! I'm delighted to be joined again on this episode by my friend and fellow harbinger of doom in the best possible way, Nate Schutta — co-author of the wonderful book Foundations of Software Engineering!...

Smart Tool Selection: Achieving 34-64% Token Savings with Spring AI's Dynamic Tool Discovery

As AI agents connect to more services—Slack, GitHub, Jira, MCP servers—tool libraries grow rapidly. A typical multi-server setup can easily have 50+ tools consuming 55,000+ tokens before any conversation starts. Worse, tool selection accuracy degrades when models face 30+ similarly-named tools. T...