Hey there, I'd like to discuss a Scala 3 release of the Kafka-Streams-Scala library. As you might have seen already, I have recently created a ticket https://issues.apache.org/jira/browse/KAFKA-16237 and a PR https://github.com/apache/kafka/pull/15338 to move this forward. The changes required to make Kafka-Streams-Scala compile with Scala 3 are trivial; the trickier part is the build system and the release process I have made some changes to the build system (feel free to comment on the above PR about that) that make it possible to test Kafka-Streams-Scala and build the jar. What remains to be done is the CI and release process. There is a `release.py` file in the Kafka repository's root directory, which assumes that all artifacts are available for all supported Scala versions. This is no longer the case with my changes because while porting Kafka-Streams-Scala to Scala 3 is trivial, porting Kafka to Scala 3 is less so, and shouldn't hold back a Scala 3 release of Kafka-Streams-Scala. I would appreciate some guidance as to what the release process should look like in the future.
Oh and I've made a PR to remove a syntax error from release.py. https://github.com/apache/kafka/pull/15350 All the best, Matthias
