Java JDK 21 is not to far away from the general availability, but if you wish to start taking a look at JDK 21, then the initial and final release candidates are available for all major OS to download and use.
How to download OpenJDK 21 Final Release Candidate
- Go to : https://openjdk.org/projects/jdk/21/
- Click on Installing from the side menu options.
- Now click on link: https://jdk.java.net
- Under Early Access click on JDK 21
- Here you should find the download links for JDK 21.
Linux / AArch64 tar.gz (sha256) 201583910 Linux / x64 tar.gz (sha256) 203348211 macOS / AArch64 tar.gz (sha256) 197305058 macOS / x64 tar.gz (sha256) 199663920 Windows / x64 zip (sha256) 201151266 - One you download the JDK 21 built based on your OS type, you can set the JAVA_HOME path and make use of it.

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