从JDK9以来，OpenJDK社区基本保持每年两个版本的节奏进行演进。

JDK 23（in development）

参考官方文档https://openjdk.org/projects/jdk/23/

2024/06/06 Rampdown Phase One (branch from main line)

2024/07/18 Rampdown Phase Two

2024/08/08 Initial Release Candidate

2024/08/22 Final Release Candidate

2024/09/17 General Availability

JDK 22（2024-03-19）

参考官方文档https://openjdk.org/projects/jdk/22/

2023/12/07 Rampdown Phase One (fork from main line)

2024/01/18 Rampdown Phase Two

2024/02/08 Initial Release Candidate

2024/02/22 Final Release Candidate

2024/03/19 General Availability

JDK 21（2023-09-19）

参考官方文档https://openjdk.org/projects/jdk/21/

2023/06/08 Rampdown Phase One (fork from main line)

2023/07/20 Rampdown Phase Two

2023/08/10 Initial Release Candidate

2023/08/24 Final Release Candidate

2023/09/19 General Availability

JDK 20（2023-03-21）

参考官方文档https://openjdk.org/projects/jdk/20/

2022/12/08 Rampdown Phase One (fork from main line)

2023/01/19 Rampdown Phase Two

2023/02/09 Initial Release Candidate

2023/02/23 Final Release Candidate

2023/03/21 General Availability

JDK 19（2022-09-20）

参考官方文档https://openjdk.org/projects/jdk/19/

2022/06/09 Rampdown Phase One (fork from main line)

2022/07/21 Rampdown Phase Two

2022/08/11 Initial Release Candidate

2022/08/25 Final Release Candidate

2022/09/20 General Availability

JDK 18（2022-03-22）

参考官方文档https://openjdk.org/projects/jdk/18/

2021/12/09 Rampdown Phase One (fork from main line)

2022/01/20 Rampdown Phase Two

2022/02/10 Initial Release Candidate

2022/02/24 Final Release Candidate

2022/03/22 General Availability

JDK 17（2021-09-14）

参考官方文档https://openjdk.org/projects/jdk/17/

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

JDK 16（2021-03-16）

参考官方文档https://openjdk.org/projects/jdk/16/

2020/12/10 Rampdown Phase One (fork from main line)

2021/01/14 Rampdown Phase Two

2021/02/04 Initial Release Candidate

2021/02/18 Final Release Candidate

2021/03/16 General Availability

JDK 15（2020-09-15）

参考官方文档https://openjdk.org/projects/jdk/15/

2020/06/11 Rampdown Phase One (fork from main line)

2020/07/16 Rampdown Phase Two

2020/08/06 Initial Release Candidate

2020/08/20 Final Release Candidate

2020/09/15 General Availability

JDK 14（2020-03-17）

参考官方文档https://openjdk.org/projects/jdk/14/

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

JDK 13（2019-09-17）

参考官方文档https://openjdk.org/projects/jdk/13/

2019/06/13 Rampdown Phase One (fork from main line)

2019/07/18 Rampdown Phase Two

2019/08/08 Initial Release Candidate

2019/08/22 Final Release Candidate

2019/09/17 General Availability

JDK 12（2019-03-19）

参考官方文档https://openjdk.org/projects/jdk/12/

2018/12/13 Rampdown Phase One (fork from main line)

2019/01/17 Rampdown Phase Two

2019/02/07 Release-Candidate Phase

2019/03/19 General Availability

JDK 11（2018-09-25）

参考官方文档https://openjdk.org/projects/jdk/11/

2018/06/28 Rampdown Phase One (fork from main line)

2018/07/26 Rampdown Phase Two

2018/08/16 Initial Release Candidate

2018/08/30 Final Release Candidate

2018/09/25 General Availability

JDK 10（2018-03-20）

参考官方文档https://openjdk.org/projects/jdk/10/

2017/12/14 Rampdown Phase One

2018/01/11 All Tests Run

2018/01/18 Rampdown Phase Two

2018/02/08 Initial Release Candidate

2018/02/22 Final Release Candidate

2018/03/20 General Availability

JDK 9（2017-09-21）

参考官方文档https://openjdk.org/projects/jdk9/

2016/05/26 Feature Complete

2016/12/22 Feature Extension Complete

2017/01/05 Rampdown Start

2017/02/09 All Tests Run

2017/02/16 Zero Bug Bounce

2017/03/16 Rampdown Phase Two

2017/06/22 Initial Release Candidate

2017/07/06 Final Release Candidate

2017/09/21 General Availability

JDK 8（2014-03-18）

参考官方文档https://openjdk.org/projects/jdk8/

2013/06/13 Feature Complete

2013/09/05 Developer Preview

2014/01/23 Final Release Candidate

2014/03/18 General Availability

JDK 7（2011-07-28）

参考官方文档https://openjdk.org/projects/jdk7/

2010/12/23 Feature Complete (M11)

2011/02/17 Developer Preview (M12)

2011/04/12 Rampdown start: P1-P3 bugs only

2011/04/28 API/interface changes: Showstoppers only

2011/05/11 All targeted bugs addressed

2011/05/18 Bug fixes: Showstoppers only

2011/06/02 Last scheduled build (M13)

2011/07/28 General Availability