Oracle is proud to announce the general availability of JDK 23, a major update to the Java Development Kit with advanced capabilities for the development of cloud-native applications and machine learning. This release builds on Java's three-decade legacy, offering new features and thousands of updates to improve performance, stability, and security.
With this release, developers can take advantage of 12 new JDK Enhancement Proposals (JEPs) and enhancements in areas such as concurrency, memory management, and language simplicity. These updates aim to maintain Java's position as one of the most popular and widely-used programming languages in the world, while also meeting the modern demands of AI and cloud-native development.
One of the key features of JDK 23 is the integration of the generational Z Garbage Collector (ZGC) as the default option. ZGC, designed to handle massive datasets, offers sub-millisecond pause times and improves Java's efficiency for handling workloads such as AI and data analytics. The addition of a generational mode further optimizes performance by reducing the overall memory footprint and enhancing application responsiveness.
JDK 23 also introduces new features under Project Loom, which aims to simplify concurrency and improve the performance of highly parallelized applications. With the adoption of virtual threads, Java developers can efficiently manage millions of threads, making it easier to handle complex AI workloads. Project Panama, too, expands Java's ability to interoperate with foreign memory and foreign code, making it easier to integrate popular machine learning frameworks like TensorFlow.
The release also includes updates under Project Amber, focusing on making the language more concise and easier to use. These updates enhance code readability and make Java a viable option for smaller data-focused applications in addition to large enterprise projects. This is especially crucial as Java competes with other "trendier" languages like Python and Go in areas such as AI and cloud-native development.
Security remains a top priority for Oracle, and JDK 23 includes enhanced support for the Panama memory segment API, which provides a secure way for developers to interact with native memory. The company is also gradually removing access to internal APIs, further improving platform integrity.
In addition to these key features, JDK 23 offers new tools for developers, such as the inclusion of the Graal Just-In-Time (JIT) compiler as an option within the Oracle JDK. This allows for faster startup and warm-up times for applications, improving overall performance. The integration of the Graal JIT with the Oracle JDK streamlines the development process and makes it easier for developers to experiment with different configurations.
Furthermore, Oracle's Visual Studio Code plugin now supports the latest JDK in real-time, making it easier for developers to access new features as they are released. This has helped bridge the gap between experienced Java developers and newer entrants to the field, ensuring that Java remains a popular choice among learners and hobbyists.
As Java enters its fourth decade, Oracle continues to balance innovation with stability. By offering a six-month release cycle for developers who want the latest features and Long-Term Support (LTS) releases for those who prioritize stability, Oracle ensures that Java remains a platform built for the future. The company is already working on JDK 24, which is expected to be released next year.
Read more from my LinkedIn post here
Top comments (1)
Virtual Threads have been introduced with JDK 21...(openjdk.org/projects/jdk/21/) and NOT with JDK 23.
The Foreign Function & Memory API has been done in JDK 22 (openjdk.org/projects/jdk/22/) with with JEP 454 (openjdk.org/jeps/454)
All the prview/incubator parts should be used with care, because they are not offically part of the language (The story of String Templates has shown that)...