Java 26: Better Language, Better APIs, Better Runtime

Since JavaOne 2025, Java has moved from JDK 25, the latest LTS release, toward JDK 26, with major updates across the language, APIs, runtime, tooling, security, startup performance, and garbage collection. This talk reviews the most important changes from Java 21 through 25, then explores JDK 26 and its preview features, including primitive patterns, lazy constants, structured concurrency, PEM encoding, HTTP/3, and new deep-reflection options.