Oracle announced Java 27 GA on September 15, 2026. Key JEPs include:
- JEP 527: Post-Quantum Hybrid Key Exchange for TLS 1.3 — protects against harvest-now-decrypt-later threats
- JEP 523: Make G1 the Default Garbage Collector in All Environments
- JEP 534: Compact Object Headers by Default — reduces heap usage on 64-bit systems
- JEP 533: Structured Concurrency (Seventh Preview)
- JEP 536: JFR In-Process Data Redaction
- JEP 537: Vector API (Twelfth Incubator)
- JEP 531: Lazy Constants (Third Preview)
- JEP 532: Primitive Types in Patterns (Fifth Preview)
- JEP 538: PEM Encodings of Cryptographic Objects (Third Preview)
Oracle also highlighted JDK 28 early access and aligned ecosystem updates including Helidon 27, JavaFX 27, and Oracle Jipher 20 for FIPS 140 environments.