JDK 17

JDK 17 is the open-source reference implementation of version 17 of the Java SE Platform, as specified by by JSR 390 in the Java Community Process.

JDK 17 reached General Availability on 14 September 2021. 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).


306: Restore Always-Strict Floating-Point Semantics
356: Enhanced Pseudo-Random Number Generators
382: New macOS Rendering Pipeline
391: macOS/AArch64 Port
398: Deprecate the Applet API for Removal
403: Strongly Encapsulate JDK Internals
406: Pattern Matching for switch (Preview)
407: Remove RMI Activation
409: Sealed Classes
410: Remove the Experimental AOT and JIT Compiler
411: Deprecate the Security Manager for Removal
412: Foreign Function & Memory API (Incubator)
414: Vector API (Second Incubator)
415: Context-Specific Deserialization Filters

JDK 17 will be a long-term support (LTS) release from most vendors. For a complete list of the JEPs integrated since the previous LTS release, JDK 11, please see here.


2021/06/10 Rampdown Phase One (fork from main line)
2021/07/15 Rampdown Phase Two
2021/08/05 Initial Release Candidate
2021/08/19 Final Release Candidate
2021/09/14 General Availability
Last update: 2021/9/13 23:38 UTC