Java 23
| Status | End of Life |
|---|---|
| Release Date | 2024-09-17 |
| EOL Date | 2025-03-18 |
| Latest Version | 23.0.2 |
| Umbrella JSR | JSR 398 |
| Class File Version | 67.0 |
| Unicode Version | 15.1.0 |
| API Changes | Compare to 22 - 21 - 20 - 19 - 18 - 17 - 16 - 15 - 14 - 13 - 12 - 11 - 10 - 9 - 8 - 7 - 6 - 5 - 1.4 - 1.3 - 1.2 - 1.1 - 1.0 |
| Documentation | JavaDoc, Language Spec, VM Spec, Tools, Release Notes |
| SCM | git |
| OpenJDK Updates | 2025-01-21 → 23.0.2 2024-10-16 → 23.0.1 2024-09-17 → 23 |
New Features
Here are all new features in Java 23 by category. There is also of list of all features of all Java releases.
JVM
- ZGC: Generational Mode by Default (JEP 474)
Language
- Primitive Types in Patterns, instanceof, and switch 1. Preview (JEP 455)
- Module Import Declarations 1. Preview (JEP 476)
- Implicitly Declared Classes and Instance Main Methods 3. Preview (JEP 477)
- Flexible Constructor Bodies 2. Preview (JEP 482)
API
- Class-File API 2. Preview (JEP 466)
- Deprecate the Memory-Access Methods in sun.misc.Unsafe for Removal (JEP 471)
- Stream Gatherers 2. Preview (JEP 473, Java Almanac)
- Structured Concurrency 3. Preview (JEP 480)
- Scoped Values 3. Preview (JEP 481)
Tools
- Markdown Documentation Comments (JEP 467)
Should I Upgrade?
Java 23 is end-of-life since 2025-03-18. Unless you have a support contract for this version and a compelling reason to stay on the old version you should definitely upgrade to a newer version with active support.
Please consider upgrading to a current long term support LTS version Java 25 to rely on a maintained platform and get advantage of the latest features and improvements.
Downloads
| Vendor | Product | License | Platform Downloads |
|---|---|---|---|
| Adoptium | Eclipse Temurin | GPLv2+CE | |
| Azul Systems | Zulu Builds of OpenJDK 23 | GPLv2+CE | |
| BellSoft | Liberica | GPLv2+CE | |
| IBM | Semeru Runtime Open Edition, Version 23 | GPLv2+CE | |
| Oracle | Oracle JDK 23 | Oracle No-Fee | |
| SAP | SapMachine 23 | GPLv2+CE |
Sandbox
Instantly compile and run Java 23 snippets without a local Java installation.