JDK 18

JDK 18 is the open-source reference implementation of version 18 of the Java SE Platform, as specified by by JSR 393 in the Java Community Process.

JDK 18 reached General Availability on 22 March 2022. 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

400: UTF-8 by Default

408: Simple Web Server

413: Code Snippets in Java API Documentation

416: Reimplement Core Reflection with Method Handles

417: Vector API (Third Incubator)

418: Internet-Address Resolution SPI

419: Foreign Function & Memory API (Second Incubator)

420: Pattern Matching for switch (Second Preview)

421: Deprecate Finalization for Removal

Schedule

2021年12月09日 Rampdown Phase One (fork from main line)

2022年01月20日 Rampdown Phase Two

2022年02月10日 Initial Release Candidate

2022年02月24日 Final Release Candidate

2022年03月22日 General Availability

Last update: 2022年3月22日 14:20 UTC

400:	UTF-8 by Default
408:	Simple Web Server
413:	Code Snippets in Java API Documentation
416:	Reimplement Core Reflection with Method Handles
417:	Vector API (Third Incubator)
418:	Internet-Address Resolution SPI
419:	Foreign Function & Memory API (Second Incubator)
420:	Pattern Matching for switch (Second Preview)
421:	Deprecate Finalization for Removal

2021年12月09日	Rampdown Phase One (fork from main line)
2022年01月20日	Rampdown Phase Two
2022年02月10日	Initial Release Candidate
2022年02月24日	Final Release Candidate
2022年03月22日	General Availability