It's a few months since we had a blog about Spring gRPC that wasn't just a release announcement. This one marks the first release since the project was promoted from experimental to a full member of the Spring Portfolio. This doesn't change the way you consume the project, but it has some implications for support and symbolically for what the project now means to the portfolio.

The latest release is 0.8.0, and it has been available for a couple of weeks now in Maven Central. The main reason for that release was to bump the dependencies to their latest versions, bringing Spring gRPC up to version 4 of the protobuf-java libraries. The easiest way to get started is to download a project with "gRPC" checked on the Spring Initializr. There are separate "starters" for Spring Boot applications gRPC that want to be "servers" or "clients", or you can get both at once from the plain spring-grpc-spring-boot-starter…

Hi, Spring fans! As I write this, I'm at the amazing Code Remix event in Miami (well, technically Tampa), Florida. I'll also be speaking at the Tampa JUG while I'm there, so look out! After that, I'll be headed back to Europe—a wee bit further north this time—to Stockholm for the amazing JForum event, where I'll be doing a much deeper dive into all things Spring.

You know what I'm most excited about? You don't have to look far to figure it out—just check out the ol' Spring Calendar. Spring AI releases on May 20th! And then, a few short and sweet days later—which, by the way, I'll be…

Hi, Spring fans! In today's extra special installment I talk to Broadcom's V Körbes who works on security above and below the application.

Hi, Spring fans! As I write this, I'm winging my way to lovely London, UK, for the amazing Devoxx UK event! I'll be looking at the wide and wonderful world of Springdom. Then, from there, it's off to Code Remix in Miami. I'll also be speaking at the Tampa JUG while I'm there, so look out! After that, I'll be headed back to Europe—a wee bit further north this time—to Stockholm for the amazing JForum event, where I'll be doing a much deeper dive into all things Spring.

You know what I'm most excited about? You don't have to look far to figure it out—just check out the ol' Spring Calendar. Spring…

The Model Context Protocol (MCP) is a powerful feature in Spring AI that enables AI models to access external tools and resources through a standardized interface. One interesting capabilities of MCP is its ability to dynamically update available tools at runtime.

This blog post explores how Spring AI implements dynamic tool updates in MCP, providing flexibility and extensibility to AI-powered applications.

The related example code is available here: Dynamic Tool Update Example

Understanding the Model Context Protocol

Before diving into dynamic tool updates, let's understand what MCP is and…

Hi, Spring fans! In this installment I talk to Mary Ellen Bowman, a legendary Spring instructor!

On behalf of the community, I am pleased to announce that the Release Candidate 1 (RC1) of the Spring Cloud 2025.0.0 Release Train is available today. The release can be found in Spring Milestone repository. You can check out the 2025.0 release notes for more information.

Notable Changes in the 2025.0.0 Release Train

This release is based on Spring Boot 3.5.0-RC1.

For a complete list of changes made in this release see this project on GitHub.

Spring Cloud Config

• Support YAML specific profile documents in AWS S3 buckets (#2825)

Spring Cloud Gateway

• Allow registering custom filters and predicates as beans (#3250)
• Support setting Spring.webflux.base-path and supporting it in path predicate (#2984)
• Add Permissions-Policy as configurable option to SecureHeaders GatewayFilter (#2975)
• Support for reloading httpClient connectTimeout Configuration (#3679)
…

After reviewing our API design and deprecations post M7, we determined that several significant changes would become breaking changes in an RC1 release. Therefore, we've introduced this additional milestone to provide developers with a transitional release where deprecated APIs coexist alongside their replacements, enabling a smoother upgrade experience before RC1.

Here are the key changes in this release.

Important Links

• Upgrade Notes
• You can automate the upgrade process to 1.0.0-M8 using an OpenRewrite recipe. This recipe helps apply many of the necessary code changes for this version. Find the recipe and usage instructions at Arconia Spring AI Migrations.
…

Hi, Spring fans! Welcome to another installment of This Week in Spring! It's 29 April 2025 and things are starting to kick into overdrive! Starting next week, I'll be doing:

• Devoxx UK
• CodeRemix Miami
• JForum #123 in Stockholm, Sweden
• Spring IO in Barcelona, Spain
• JNation in Coimbra, Portugal
• The Japan Java User Group Spring (time) conference in Tokyo, Japan

If you're going to be there or near there, don't hesitate to say "hi"!

As always, we've got a ton of stuff cooking this week, too! Let's dive right into it!

• Spring Boot 3.5.0-RC1 is available now
• Spring gRPC 0.8.0 is available now
• Spring Modulith 1.4 RC1, 1.3.5, and 1.2.11 released
• Spring Vault 3.1.3 and 3.2.0 M1 available now
• In last week's episode of A Bootiful Podcast, I talked to fellow Java Champion and VJUG cofounder Simon Maple
• Spring Boot 3.3.11 available now
• Likewise, Spring Boot 3.4.5 is available now
• Spring Boot 2.7.25, 3.1.16, 3.2.14, 3.3.11, and 3.4.5 released, includes fix for CVE-2025-22235
• Spring Authorization Server 1.5.0-RC1, 1.4.3, and 1.3.6 available now
• Spring for Apache Kafka 4.0.0-M2 and 3.3.5 are available now
• …