Java 21 release notes

Ingrid 50 Published: 12/03/2024

Java 21 release notes

Java 21 Release Notes

The OpenJDK community is proud to announce the general availability of Java 21 (17.0.5)! This release focuses on improving the overall performance, security, and user experience of the JDK. Here are some key highlights and features that you can expect:

Performance Enhancements

Improved garbage collection algorithms for better heap management and reduced pause times Enhanced Just-In-Time (JIT) compiler for faster execution of Java code Optimizations in the C2 compiler for improved performance in various use cases

Security Updates

Added support for TLS 1.3 protocol for enhanced secure communication Improved handling of invalid SSL/TLS certificates to prevent potential vulnerabilities Enhanced validation of Java Archive (JAR) files to reduce the risk of malicious code execution

User Experience Improvements

Simplified and unified logging mechanisms across the JDK for easier debugging Enhanced support for Unicode characters in various components, such as regular expressions and formatting libraries Improved handling of date and time zone conversions to prevent potential issues

JavaFX Updates

Added support for improved accessibility features, including screen reader functionality Enhanced rendering performance for smoother graphics and animation Improved support for touch-based input devices for better user interaction

Corrections and Bug Fixes

Resolved numerous bugs and memory leaks reported by the community Fixed issues related to Java 8 compatibility and deprecated APIs Corrected problems with the GraalVM runtime, improving overall stability

New Features and Improvements

Added support for experimental JEP 343: Pattern Matching for instanceof (Preview) Enhanced support for XML processing using the JAXP API Improved handling of JavaFX layout constraints for more flexible GUI designs

This release marks a significant step forward in the evolution of the JDK, addressing critical areas like performance, security, and user experience. We encourage you to explore the new features, improvements, and bug fixes to get the most out of your Java 21 experience!

Java 22 release date

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Java is a popular programming language developed by Sun Microsystems (now owned by Oracle Corporation). The latest version of Java, known as Java 22, has been released on March 15, 2023. This release marks a significant milestone for the Java community, bringing new features, improvements, and enhancements to the platform.

Here are some key highlights from the Java 22 release:

Improved Performance: Java 22 introduces several performance optimizations, including better garbage collection, improved Just-In-Time (JIT) compilation, and enhanced caching mechanisms. These enhancements enable applications to run faster and more efficiently. Enhanced Security: Java 22 includes several security features to protect against vulnerabilities and potential attacks. These include improved cryptography support, enhanced digital signature verification, and strengthened sandboxing for better isolation of untrusted code. New Features for Mobile Apps: Java 22 introduces new APIs for building mobile apps on Android and iOS platforms. Developers can now create rich, engaging user experiences using Java, leveraging features like touch-sensitive gestures, motion sensors, and camera capabilities. Better Support for Big Data and AI: Java 22 includes enhanced support for big data processing with Hadoop and Apache Spark, as well as improved machine learning libraries for building artificial intelligence (AI) models. This enables developers to create more sophisticated analytics, predictive modeling, and AI-driven applications. Simplified Code Writing: Java 22 simplifies the process of writing code by introducing new language features like type inference, method references, and improved lambda expressions. These changes reduce the complexity of coding and enable developers to focus on higher-level abstractions.

Overall, Java 22 represents a significant leap forward for the Java ecosystem. With its enhanced performance, improved security, and new features for mobile apps, big data, and AI, this release is expected to have a profound impact on the development community.