Java 25 compatibility

Support
1

Any plans to support Java 25 now that gradle has released 9.1.0 with full support?

14 Likes
2

Looking forward for Java 25 support

3 Likes
3

ping me when Java 25 support is there

4 Likes
4

Probably will go out in 2.3.0 https://youtrack.jetbrains.com/issue/KT-81334/Add-support-for-JVM-25

4 Likes
5

Noob question here. Kotlin doesn’t need to support compiling to Java 25 bytecode in order to use a Java 25 JVM to run the compiled code, right? We would just be targeting a Java version that is supported and having the Java 25 JVM run that bytecode, and still benefiting from JVM runtime performance improvements in Java 25, right?

2 Likes
6

Correct. Compile your Kotlin to Java 24 bytecode, then run it on Java 25.

Tbh, I feel like Java versions matter very little for Kotlin, since Kotlin language features aren’t tied to the Java version. You might as well keep using Java 1.8 for Kotlin. xD

3 Likes
7

Yeah, right. But it’s tricky to keep things working fine when you have source compatibility properties and JvmTarget classes all over the place.

Ideally, supporting Java 25 will avoid workarounds during development, building and deployment.

3 Likes
8

Ideally, this is much needed because currently, nto having the 25 support is like giving someone a problematic feeling that something is not right. a small thing to fix to make a lot of people happy in being able to utilize the latest kotlin with latest java LTS.

9

Starting with Kotlin 2.3.0-Beta2, the compiler can generate classes containing Java 25 bytecode.

2 Likes