JDK 24

This release is the Reference Implementation of version 24 of the Java SE Platform, as specified by JSR 399 in the Java Community Process.

JDK 24 reached General Availability on 18 March 2025. Production-ready binaries under the GPL are available from Oracle; binaries from other vendors will follow shortly.

The features and schedule of this release were proposed and tracked via the JEP Process, as amended by the JEP 2.0 proposal. The release was produced using the JDK Release Process (JEP 3).

Features

404: Generational Shenandoah (Experimental)

450: Compact Object Headers (Experimental)

472: Prepare to Restrict the Use of JNI

475: Late Barrier Expansion for G1

478: Key Derivation Function API (Preview)

479: Remove the Windows 32-bit x86 Port

483: Ahead-of-Time Class Loading & Linking

484: Class-File API

485: Stream Gatherers

486: Permanently Disable the Security Manager

487: Scoped Values (Fourth Preview)

488: Primitive Types in Patterns, instanceof, and switch (Second Preview)

489: Vector API (Ninth Incubator)

490: ZGC: Remove the Non-Generational Mode

491: Synchronize Virtual Threads without Pinning

492: Flexible Constructor Bodies (Third Preview)

493: Linking Run-Time Images without JMODs

494: Module Import Declarations (Second Preview)

495: Simple Source Files and Instance Main Methods (Fourth Preview)

496: Quantum-Resistant Module-Lattice-Based Key Encapsulation Mechanism

497: Quantum-Resistant Module-Lattice-Based Digital Signature Algorithm

498: Warn upon Use of Memory-Access Methods in sun.misc.Unsafe

499: Structured Concurrency (Fourth Preview)

501: Deprecate the 32-bit x86 Port for Removal

Schedule

2024年12月05日 Rampdown Phase One (branch from main line)

2025年01月16日 Rampdown Phase Two

2025年02月06日 Initial Release Candidate

2025年02月20日 Final Release Candidate

2025年03月18日 General Availability

Last update: 2025年3月17日 02:27 UTC

404:	Generational Shenandoah (Experimental)
450:	Compact Object Headers (Experimental)
472:	Prepare to Restrict the Use of JNI
475:	Late Barrier Expansion for G1
478:	Key Derivation Function API (Preview)
479:	Remove the Windows 32-bit x86 Port
483:	Ahead-of-Time Class Loading & Linking
484:	Class-File API
485:	Stream Gatherers
486:	Permanently Disable the Security Manager
487:	Scoped Values (Fourth Preview)
488:	Primitive Types in Patterns, instanceof, and switch (Second Preview)
489:	Vector API (Ninth Incubator)
490:	ZGC: Remove the Non-Generational Mode
491:	Synchronize Virtual Threads without Pinning
492:	Flexible Constructor Bodies (Third Preview)
493:	Linking Run-Time Images without JMODs
494:	Module Import Declarations (Second Preview)
495:	Simple Source Files and Instance Main Methods (Fourth Preview)
496:	Quantum-Resistant Module-Lattice-Based Key Encapsulation Mechanism
497:	Quantum-Resistant Module-Lattice-Based Digital Signature Algorithm
498:	Warn upon Use of Memory-Access Methods in sun.misc.Unsafe
499:	Structured Concurrency (Fourth Preview)
501:	Deprecate the 32-bit x86 Port for Removal

2024年12月05日	Rampdown Phase One (branch from main line)
2025年01月16日	Rampdown Phase Two
2025年02月06日	Initial Release Candidate
2025年02月20日	Final Release Candidate
2025年03月18日	General Availability