All About JLS 29

JLS 29 is the next visible planned specification horizon if the Java LTS cadence continues unchanged through September 2027.

Specification edition

JLS 29

JLS 29 is the next visible planned specification horizon if the Java LTS cadence continues unchanged through September 2027.

Planned LTS horizonExpected Sep 2027Language-spec planning

What shifted

How the specification changed

Represents the likely next long-term specification anchor that would absorb the stable language work delivered between Java 25 and Java 29.

Useful for educators, framework authors, and standards-oriented teams that want to think beyond the current edition without pretending the spec text is already final.

Reading note

Why this edition matters

Treat this as a roadmap-aligned planning entry until an official JLS 29 edition is published.

Use the dedicated page as a future-facing planning note for the next visible LTS-aligned specification edition.

Continue through the language-spec path

Common JLS Return to the JLS timeline and compare this edition with neighboring spec milestones. Common Java See the broader language-release story that this specification edition belongs to. Common Class File Compare source-language evolution with the class file and JVM side of Java evolution. Compatibility Cross-check this specification milestone with Java, JDK, and runtime layers.