Java Tech Enthusiast

Sep 15, 2026 · Backend Development

JDK 27: 5 Critical Features – 22% Less Memory, Quantum-Safe TLS, G1 GC Default

JDK 27 introduces nine JEPs, highlighted by G1 GC becoming the universal default, compact object headers cutting heap memory by 22%, post-quantum TLS 1.3 key exchange, JFR data redaction for compliance, and structured concurrency reaching its seventh preview, delivering immediate performance gains and future-proof security for Java applications.