Java 19 is the first release to preview Project Loom's virtual threads and structured concurrency, Project Amber's record patterns, and Project Panama's foreign memory and function APIs. It also continues previews of pattern matching in switch and vector API. Put together, this makes it the most groundbreaking Java release in years and probably for years to come!

nipafx (Nicolai Parlog)

Java 19 is previewing several major features across multiple projects: Project Loom introduces virtual threads (enabling millions of lightweight threads for scalable concurrent code) and structured concurrency (organizing concurrent subtasks in a tree hierarchy); Project Amber adds record patterns (deconstructing records in instanceof and switch) and advances pattern matching in switch to its third preview; Project Panama ships the Foreign Function & Memory API as a preview in its final package. The Vector API also receives improvements but stays in incubation pending Project Valhalla changes. Together these features make Java 19 one of the most significant Java releases in years.

Inside Java Newscast #27 // nipafx