JDK 18 has been released as a GA short‑term support version with six months of maintenance, introducing nine major JEPs—including UTF‑8 as the default charset, a simple HTTP server, a Vector API incubator, and a Foreign Function & Memory API—while preparing for JDK 19 in September and the next LTS, JDK 21, in 2023.
Oracle’s March 22 release of Java 18 brings short‑term support, over a thousand bug fixes and nine major JEP enhancements—including UTF‑8 as the default charset, a Simple Web Server, method‑handle‑based reflection, a new Internet address SPI, and preview features like Vector API, Foreign Function & Memory API, switch pattern matching, and the deprecation of finalization—significantly boosting developer productivity and platform stability.
JDK 18, released on March 22, 2022, introduces nine new JEPs—including default UTF‑8 charset, a simple web server, @snippet for Javadoc, method‑handle based reflection, Vector API, internet address resolution SPI, foreign function & memory API, switch pattern matching, and deprecation of finalization—while being a short‑term feature release.
JDK 18, released on March 22 2022, introduces nine new JEPs—including default UTF‑8 charset, a simple web server, code snippet support in JavaDoc, vector API, external function and memory API, and switch pattern matching—while being a short‑term feature release following the LTS JDK 17.
The article outlines the March 22, 2022 release of JDK 18, highlights its nine new features—including UTF‑8 as the default charset, a simple web server, and a foreign function & memory API—while noting its short‑term support compared to the LTS JDK 17.
The article reviews benchmark results showing Java 17’s speed gains over earlier releases, outlines upcoming Java 18 features such as the third‑incubated Vector API, preview record and array patterns, UTF‑8 default charset, and JavaDoc snippet support, and points to further reading.
