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kotlinlang

Hey guys, is there any binary compatibility plugin/library for KMP?

<https://github.com/Kotlin/binary-compatibility-validator|https://github.com/Kotlin/binary-compatibility-validator>

Has anyone tried this in a KMP environment?

There is no binary compatibility validator for _any_ target. That project dumps the API of Java classfiles with a minor understanding of Kotlin at best. It does no validation, however.

On the 2024 roadmap blog post (<https://blog.jetbrains.com/kotlin/2023/11/kotlin-multiplatform-development-roadmap-for-2024/>), they said

&gt; Provide a tool that ensures that your multiplatform library public API hasn’t changed in an incompatible way.
Although it does not seem to be on the actual roadmap page.

klib support is WIP <https://github.com/gradle/gradle/issues/27842>

there's a community version for Kotlin/JS <https://github.com/fluxo-kt/fluxo-bcv-js#readme>

<https://siom79.github.io/japicmp/|Japicmp> has _some_ validation for the JVM. IIRC it can tell you if you do some breaking changes like removing a method