Is there a specific version of coroutines that should be used with Kotlin

1.4.0

stable?

is stable fully out? don't see a release blog yet

1.3.9 seems to work, POM says it depends on 1.4.0. No github release yet, but it’s on bintray.

mhm, by "fully" I meant to include the fact that the kotlinx.coroutines isn't atomic with a Kotlin release created on GH, so there may not yet be a specific version yet

1.3.9 will be compatible with Kotlin 1.4.0, ETA is Monday. For now it’s just cooling off in maven central :)

1.3.9 is broken, FYI. core-native and core-common are missing. https://search.maven.org/search?q=g:org.jetbrains.kotlinx%20a:kotlinx-coroutines-core-* I wasn't sure if it was still in-flight or not but given this comment i'll just file a bug: https://github.com/Kotlin/kotlinx.coroutines/issues/2198

Thanks for the caution, but this is expected. Answered in a bug with more details