Spring Office Hours Episode 52 - Java 21

In episode 52 of the Spring Office Hours podcast, the hosts dive into the recent release of Java 21 and what it means for Spring Boot developers. They confirm that Java 21 is production-ready and highlight several important Java Enhancement Proposals (JEPs), including the preview of string templates, sequenced collections, and the long-awaited introduction of virtual threads. The discussion also covers strategies for upgrading, with a strong recommendation to upgrade the JVM first and to use tools like Open Rewrite for a smoother transition. The episode wraps up with a lively Q&A session that tackles common challenges during upgrades and dispels myths about the future of reactive programming in the context of virtual threads. Plus, look out for Spring Boot 3.2 RC1, set to launch on October 19th!