JDK 14

This release will be the Reference Implementation of version 14 of the Java SE Platform, as specified by JSR 389 in the Java Community Process.


JDK 14 is in Rampdown Phase Two.

The overall feature set is frozen. No further JEPs will be targeted to this release.

The stabilization repository, jdk/jdk14, is open for select bug fixes, with approval, per the JDK Release Process (JEP 3). Late enhancements are still possible, with approval, but the bar is now extraordinarily high.


2019/12/12 Rampdown Phase One (fork from main line)
2020/01/16 Rampdown Phase Two
2020/02/06 Initial Release Candidate
2020/02/20 Final Release Candidate
2020/03/17 General Availability


305: Pattern Matching for instanceof (Preview)
343: Packaging Tool (Incubator)
345: NUMA-Aware Memory Allocation for G1
349: JFR Event Streaming
352: Non-Volatile Mapped Byte Buffers
358: Helpful NullPointerExceptions
359: Records (Preview)
361: Switch Expressions (Standard)
362: Deprecate the Solaris and SPARC Ports
363: Remove the Concurrent Mark Sweep (CMS) Garbage Collector
364: ZGC on macOS
365: ZGC on Windows
366: Deprecate the ParallelScavenge + SerialOld GC Combination
367: Remove the Pack200 Tools and API
368: Text Blocks (Second Preview)
370: Foreign-Memory Access API (Incubator)
Last update: 2020/1/17 02:17 UTC