The experimental Spring gRPC project released its 0.3.0 version recently. Jars are available in Maven Central, and you can generate a new project with Spring gRPC at https://start.spring.io. We recommend you do that if you are trying it out because there are some build plugins to configure and the generated project will have that all sorted out for you.

The new release has some updates to factory interfaces on the client side. Also there is now full support for autoconfiguration of client side interceptors, including the ones from Micrometer. On the server side we now support Spring Security…

On behalf of the team and everyone who has contributed, I am pleased to announce that Spring Framework 6.2.2 are available now.

Spring Framework 6.2.2 ships with 47 fixes and documentation improvements. This version will be shipped next week with Spring Boot 3.4.2 and 3.5.0-M1.

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We're pleased to announce Spring AI MCP 0.5.0 milestone release.

Major Features & Improvements

Transport Layer Enhancements

• New Servlet-based SSE Transport

  • Added HttpServletSseServerTransport with Servlet 6.0 support
  • Enables integration with any Java HTTP server supporting Servlets
  • Compatible with Jakarta Servlet API 6.1.0
  • Includes comprehensive integration tests with Tomcat

• Enhanced WebMVC Transport

  • Replaced Spring's SseEmitter with custom BlockingQueue-based implementation
  • Improved event delivery control and connection management
  • Added dedicated session management with SSEEvent record
  • Enhanced error handling and timeout management
  • Includes comprehensive integration tests
…

On behalf of the community, I am pleased to announce that the General Availability (RELEASE) of the Spring Cloud 2023.0.5 (aka Leyton) Release Train is available today. The release can be found in Maven Central. You can check out the 2023.0 release notes for more information.

Notable Changes in the 2023.0.5 Release Train

This is mostly a bugfix and dependency upgrade release. Please find the issues and pull requests here.

The following modules were updated as part of 2023.0.5:

We're pleased to announce Spring AI MCP 0.4.0 milestone release.

Repository Configuration

Add this Spring milestone repository to your POM:

<repositories>
  <repository>
    <id>spring-milestones</id>
    <name>Spring Milestones</name>
    <url>https://repo.spring.io/libs-milestone-local</url>
    <snapshots>
      <enabled>false</enabled>
    </snapshots>
  </repository>
</repositories>

Major Features

Reference documentation: https://docs.spring.io/spring-ai-mcp/reference/overview.html

Enhanced Roots Management

• Implemented proper ListRootsResult wrapping in async client
• Added listRoots methods in server components
• Implemented roots change notification handling in async server
• Added roots integration tests including async notifications
• Added support for roots change notification with single and multiple consumers
• Improved robustness of root addition/removal scenarios
…

We're pleased to announce Spring AI MCP 0.2.0 milestone release.

Repository Configuration

Add this Spring milestone repository to your POM:

<repositories>
  <repository>
    <id>spring-milestones</id>
    <name>Spring Milestones</name>
    <url>https://repo.spring.io/libs-milestone-local</url>
    <snapshots>
      <enabled>false</enabled>
    </snapshots>
  </repository>
</repositories>

Major Features

MCP Server Enhancements

• Introduced new McpServer factory with builder pattern for flexible configuration
• Added McpAsyncServer with non-blocking operations and reactive support
• Implemented McpSyncServer as synchronous wrapper around async implementation
• Added runtime tool management capabilities
• Introduced server capabilities and implementation information support
…

We are happy to announce the 1.0.0 Milestone 5 release of Spring AI

As usual, this release has had several new features and bug fixes, however we have put a focus on reviewing the code base from a design perspective with the aim to go GA in early 2025. While we have tried to make this transition smooth, by deprecating methods and classes for one release cycle, there are some breaking changes we know about and perhaps some that we don’t, so please bear with us. See the section on Breaking Changes below.

New Features

Model Context Protocol (MCP) Support - Incubating

MCP is a game-changer for…

We're pleased to announce Spring AI MCP 0.2.0 milestone release.

Repository Configuration

Add this Spring milestone repository to your POM:

<repositories>
  <repository>
    <id>spring-milestones</id>
    <name>Spring Milestones</name>
    <url>https://repo.spring.io/libs-milestone-local</url>
    <snapshots>
      <enabled>false</enabled>
    </snapshots>
  </repository>
</repositories>

Breaking Changes

• Module restructuring (see the Module Names Updated section below)
• Renamed StdioServerTransport to StdioClientTransport

Key Features

API Updates

• Simplified McpClient listing operations (no cursor parameter needed)
• Added McpClient.Builder support.
…

On behalf of the community, I am delighted to announce the releases of Spring Modulith 1.3.1, 1.2.7, and 1.1.12.

The releases primarily ship dependency updates and bug fixes, but 1.3.1 also includes a couple of improvements in both our own reference documentation but also in our documentation generation support.

Find more information in the full change logs of the individual releases linked above.

Happy Holidays!