JDK 27, the reference implementation of Java 27, is now Generally Available. Build 35, the second Release Candidate released on 20 August, has no reported P1 bugs and is now the GA build for production use. GPL-licensed OpenJDK builds from Oracle are available at https://jdk.java.net/27, with other vendor builds expected soon.

This release includes nine JEPs: 523 (Make G1 Default GC), 527 (Post-Quantum Hybrid Key Exchange for TLS 1.3), 531 (Lazy Constants Third Preview), 532 (Primitive Types in Patterns Fifth Preview), 533 (Structured Concurrency Seventh Preview), 534 (Compact Object Headers by Default), 536 (JFR In-Process Data Redaction), 537 (Vector API Twelfth Incubator), and 538 (PEM Encodings Third Preview).

The release also includes hundreds of smaller enhancements and thousands of bug fixes. Thanks to all contributors who designed features, fixed bugs, or tested early-access builds.

• Mark