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Bootiful Spring Boot: A DOGumentary

Josh Long on Spring Boot 3.x and Java 21: virtual threads, GraalVM, AppCDS, modularity and AI in the Spring ecosystem. On-demand from Code Remix Summit 2025.

Spring Boot 3.x and Java 21 have arrived, which makes it an interesting time to be a Java developer.

Josh Long digs into the Spring Boot ecosystem — AI, modularity, data access, and production optimisations like Project Loom’s virtual threads, GraalVM and AppCDS — with an eye on building faster, more scalable, more modular and more secure services.