JDK 21 binaries are free to use in production and free to redistribute, at no cost, under the Oracle No-Fee Terms and Conditions (NFTC). JDK 21 will receive updates under the NFTC, until …

The JDK is a development environment for building applications using the Java programming language. The JDK includes tools useful for developing and testing programs written in the …

See the JDK 21 Migration Guide for a list of known compatibility issues. Every effort has been made to support programs written for previous versions of the Java platform.

You can install the JDK by downloading the appropriate Oracle JDK MSI Enterprise Installer for your system and running it from the command line. Download jdk-21_windows-x64_bin.msi.

These notes describe important changes, enhancements, removed APIs and features, deprecated APIs and features, and other information about JDK 21 and Java SE 21.

Sep 19, 2023 · This document describes important changes and information of the JDK 21 release.

For more details on removals and deprecations, see Features and Options Removed and Deprecated in JDK 21. In addition, there are security related updates that you need to be …

The documentation for JDK 21 includes developer guides, API documentation, and release notes.

This document describes the process to install Oracle JDK 21 on Windows, macOS, and Linux platforms.

For more details on removals and deprecations, see Features and Options Removed and Deprecated in JDK 21. In addition, there are security related updates that you need to be …