Oracle Announces Java 24 (JDK 24) with New Language Features, Libraries, Security Enhancements, and Performance Updates

Oracle officially announced the release of Java 24 (Oracle JDK 24), introducing thousands of improvements and over 20 new features across the language, libraries, security, tools, and runtime.

Language Features : JEP 488 (Primitive Types in Patterns, instanceof, and switch – second preview), JEP 492 (Flexible Constructor Bodies – third preview), JEP 494 (Module Import Declarations – second preview), JEP 495 (Simple Source Files and Instance Main Methods – fourth preview).

Libraries : JEP 485 (Stream Gatherers), JEP 484 (Class-File API), JEP 487 (Scoped Values – fourth preview), JEP 489 (Vector API – ninth incubation), JEP 499 (Structured Concurrency – fourth preview).

Security Libraries : JEP 478 (Key Derivation Function API – preview), JEP 496 (Quantum‑Resistant Module‑Lattice‑Based Key Encapsulation Mechanism), JEP 497 (Quantum‑Resistant Module‑Lattice‑Based Digital Signature Algorithm).

Tools : JEP 493 (Linking Run‑Time Images without JMODs) enabling jlink to create smaller custom runtime images.

Performance and Runtime Updates : JEP 450 (Compact Object Headers – experimental), JEP 475 (Late Barrier Extension for G1), JEP 483 (Ahead‑of‑Time Class Loading & Linking), JEP 490 (Remove ZGC non‑generational mode), JEP 491 (Synchronize Virtual Threads without Pinning).

Source Code Changes : JEP 404 (Generational Shenandoah – experimental), JEP 479 (Remove Windows 32‑bit x86 port), JEP 501 (Deprecate 32‑bit x86 port for removal), plus upcoming deprecations of JEP 472, JEP 486, and JEP 498.

The announcement also mentions a free promotional offer for a programmer book collection, obtainable by replying “5000” in the backend menu.