All About Class File 69.0

Class file 69.0 corresponds to the expected Java 25 LTS milestone in this projected series.

Binary milestone

Class File 69.0

Class file 69.0 corresponds to the expected Java 25 LTS milestone in this projected series.

69.0Expected LTSForward look

Compatibility meaning

Why the version number matters

The class file version is the binary compatibility signal that tells tooling and runtimes which generation of compiled Java bytecode they are dealing with.

This is a projected class file milestone, useful for forward planning and for understanding how the numbering sequence is expected to continue.

javap -verbose MyClass.class
# look for: major version 69

Release context

What was happening around this milestone

Expected LTS

Class file 69.0 corresponds to the expected Java 25 LTS milestone in this projected series.

Continue through binary and runtime history

Common Class File Return to the class file timeline and compare this version with adjacent milestones. Common Java See the source-language side of the Java release associated with this class file version. Common JLS Compare source-language specification changes with binary-format evolution. Common JDK Use the platform view when you want to connect bytecode changes to tooling and runtime packaging.