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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

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