JDK 18 (Java 18) GA Release: New Features, Enhancements, and Upcoming Versions
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.