Topic

Java

The Java language, the JDK toolchain and the runtime platform they ship on, developed in the open through OpenJDK on a six-month feature release cadence.

Current clusters

build1 publisher

G1 replaces Serial GC as JDK 27's default on resource-constrained systems

JDK 27 drops the automatic fallback to Serial GC on limited hardware. A JVM in a tight container now gets G1 unless an operator asks for something else, and compact object headers move footprint in the same release.

Publishers:inside.java

Reality

Evidence62
Adoption28
Hype gap−12
Incentives68
Confidence58

build1 publisher

Upgrading to JDK 27 switches TLS 1.3 handshakes to hybrid post-quantum key exchange

Oracle's JDK 27 release notes put hybrid post-quantum key exchange for TLS 1.3 into the default configuration. The migration now belongs to whoever schedules the runtime upgrade.

Publishers:inside.java

Reality

Evidence55
Adoption12
Hype gap+22
Incentives80
Confidence55