JDK 21, the next Long-Term Support (LTS) release since JDK 17, has reached its initial release candidate phase with a final set of 15 new features, in the form of JEPs, that can be separated into four ...

Key Improvements in the Upgrade Upgraded from JDK 17 to JDK 21 JVM core for JDK 8 and 11 builds Delivers 5 to 10% better performance in most workloads, with gains of up to 40% in select cases.

How install Java 21 on Windows Follow these steps to quickly install Java 21 on your operating system: Navigate to jdk.java.net and download your platform’s zip file. Extract the Java 21 zip file to a ...

JDK 21's virtual threads are a major leap forward for Java's concurrency model. Previously, Java relied on OS threads, which were resource-heavy, limiting how many threads could run concurrently.