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JDK 28 targets generational Shenandoah, ZGC improvements, and structured concurrency

openjdk.org Editor score 7/10

The JDK 28 early-access plan includes generational Shenandoah by default, ZGC startup and heap-sizing changes, structured concurrency, and ahead-of-time compilation. JVM engineers can track proposed runtime and language-platform changes, though the features are not yet presented as final.

What

JDK 28's listed proposals include generational Shenandoah, structured concurrency, a Simple JSON API, and ZGC improvements.

How

The listed JEPs also cover value objects, strict field initialization, PEM encodings, ahead-of-time compilation, and adaptive heap sizing.

Why it matters

These proposed JVM changes span garbage collection, startup, concurrency, and APIs—areas engineers weigh when choosing runtime capabilities.

Read on openjdk.org → Hacker News · 40 comments

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