#Oracle

Java 22 (JDK 22) was released on March 19, 2024, with 12 significant enhancements. It finalized the Foreign Function and Memory API, previewed stream gatherers and statements before super, and enabled running multi-file source programs. Here is what changed.

Java 21 (JDK 21) was released on September 19, 2023, the first LTS release since Java 17. It delivered production-ready virtual threads, finalized pattern matching for switch and record patterns, and added generational ZGC. Here is what changed.

Java 17 (JDK 17) was released on September 14, 2021, a long-term-support release delivering 14 JEPs. It finalized sealed classes, previewed pattern matching for switch, added an Apple Silicon port, and strongly encapsulated JDK internals. Here is what changed.