Spring Framework 6: Infrastructure Themes
summary
Spring Framework 6 requires a Java 17 baseline and moves to the Jakarta EE 9 namespace, targets GA around November 2022 alongside Spring Boot 3, and anticipates JDK 21 LTS soon after. It introduces Spring AOT that generates optimized source and runtime hints to cut startup and memory, and supports producing GraalVM native images under a closed‑world native image model (long build times). Project Loom virtual threads appear in JDK 19 preview and promise major scalability gains for blocking I/O paths.
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