Hi, Spring fans! Welcome to yet another rip-roarin' installment of This Week in Spring. As usual, we've got a ton to look into, so let's dive right in!

• Happy 22nd birthday to Spring Framework, released this day 22 years ago!
• and of course, next week, 1 April 2026, marks 12 years since Spring Boot 1.0 came out!
• Spring Boot 4.1.0-M3 is available now, with new support for Spring gRPC, file rotation with Log4j, OpenTelemetry improvements, Spring Batch MongoDB support, SSL support for RabbitMQ streams, and AMQP 1.0 support in Spring AMQP!
• The latest versions of Spring AI and the MCP spec unlock awesome new potential: MCP applications!
• In last week's installment of A Bootiful Podcast, I talked to legendary Java author, teacher, and professor extraordinaire Cay Horstmann!. I've read some of his books, and I'd bet money you have too!
• Heard of OpenClaw? Want something better, built on the bones of a proper scheduling engine like JobRunr? Check out their implementation: JavaClaw!
• I love this slide from last week's incredible edition of JavaOne: Microsoft runs on Java!
• Spring Data Valkey 1.0 is here!
• Using local models with Spring AI
• Spring Boot 4.0.4 is available now
• Spring Boot 3.5.12 is available now
• Spring Security 6.5.9, 7.0.4, and 7.1.0-M3 are all available now
• Spring Batch 6.0.3 and 5.2.5 are available now
• Spring Integration 7.1.0-M3 is available now