JDK 27, due in September, kicks off with a post-quantum hybrid key exchange proposal to bolster the security of network communications.

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JDK 27, scheduled for September 2026, will include post-quantum hybrid key exchange for TLS 1.3 as its first confirmed feature. This enhancement combines quantum-resistant algorithms with traditional ones to protect Java applications against future quantum computing attacks, benefiting applications using javax.net.ssl APIs automatically. As a non-LTS release with six months of support, JDK 27 may also include features currently in preview in JDK 26, such as PEM encodings, structured concurrency, lazy constants, and primitive types in patterns.

Java 27 gets its first feature