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Java 26 adds HTTP/3, boosts G1 performance
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HN · HACKER_NEWS// 25d agoPRODUCT LAUNCH

Java 26 adds HTTP/3, boosts G1 performance

ANNOUNCEMENTPRODUCT

Java 26 introduces native HTTP/3 support, 15% throughput improvements for the G1 garbage collector, and expanded AOT object caching. This release prioritizes modern networking and JVM efficiency while setting the stage for Project Valhalla's value types.

// ANALYSIS

Java 26 is a high-performance floor-raiser that makes the JVM faster and more modern without requiring code changes.

  • –HTTP/3 support via HttpClient finally brings modern QUIC-based networking to the standard library
  • –G1 GC's new "card table" optimization delivers a rare 15% throughput win for heavy workloads
  • –AOT caching improvements significantly cut startup times, making Java a better fit for serverless
  • –Vector API (11th incubator) and final field integrity show the long-term commitment to high-performance AI/ML workloads
  • –Removal of the Applet API cleans up decades of technical debt, streamlining the runtime
// TAGS
java-26javabackenddevtoolinfrastructureopen-source

DISCOVERED

25d ago

2026-03-17

PUBLISHED

25d ago

2026-03-17

RELEVANCE

7/ 10

AUTHOR

mfiguiere