See: gRPC, Guava, etc. The problem is for the API ...

# kotlin-roadmap

[mikehearn]

See: gRPC, Guava, etc. The problem is for the API designer it feels "free" to keep something experimental, because taking the label off probably doesn't increase usage much yet requires commitment and finality. So people launch beta APIs and then forget about them, and move onto the next thing.

[elizarov]

Kotlin contracts need a lot of work to go out of experimental. We’ll be able to tackle them after new compiler gets out of the door.