Spring Boot 3 / Spring 6: What’s new?

on YouTube ↗51m

" summary

Spring Boot 3 raises the baseline to Java 17 minimum, switches to Jakarta EE9 package names, and ships new features: generated Java HTTP interface clients backed by WebClient (blocking and reactive), built-in Problem Details (RFC7807) support via a ProblemDetail API, unified observability through the Observation API (Micrometer), and integrated GraalVM native images with a Spring AOT engine that generates application-context factories. Native builds take ~5 minutes and ~8 GB RAM but produce apps that start in ~0.1–0.7s (demo shows 200ms) and the migrated demo app runs correctly.

AI-written summary · about

" chapters (9)

1. 0:00Introduction to Spring Boot 3
2. 3:56Breaking changes in Spring Boot 3
3. 7:04New features overview
4. 7:24HTTP Interface clients
5. 9:55RFC 7807 Problem details
6. 17:28Observability with Micrometer
7. 25:36Native image support with GraalVM
8. 38:48Live migration demo
9. 50:28Closing and Q&A

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