Java 26 adds HTTP/3, boosts G1 performance

// 71d agoPRODUCT LAUNCH

Java 26 adds HTTP/3, boosts G1 performance

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

71d ago

2026-03-17

PUBLISHED

71d ago

2026-03-17

RELEVANCE

7/ 10

AUTHOR

mfiguiere

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