Should there be a version of Kotlinx Coroutines (and in particular one that supports native multithreading) available yet that works with Kotlin 1.4-M2? (I guess most KMP projects are probably blocked from using it right now anyway until various other libraries are released that work with that version)

coroutines-native-mt is a separate preview effort

For 1.4-M1, there is this version of kotlin coroutnes

1.3.5-native-mt-1.4-M1

. Not sure if that works with M2 or has been upgraded to work with M2

I don't see an M2 version of that in maven at least right now

Maybe M1 works as well….

Thanks, I'll give it a go tomorrow (also be nice btw if it was possible to have version that was >= 1.3.6 to allow for example use of StateFlow)

yes, it's all kind of a mess ATM

actually, re-reading following update from #ktor channel it looks like issue is specifically with building native-mt version of coroutines (I had misread that earlier as indicating that issue was on ktor side) "We have problems to build 

kotlinx.coroutines

 

native-mt

 with 

1.4-M2

 kotlin right now. So the ktor 

native-mt

 will be delayed"

ktor and everything else can take a bit to deploy after major releases, so the mt branch delay on a preview isn’t a huge surprise.

If you need it just for playing around, and don't care about reliability or quality, or that it only has JS IR support you can try my snapshot build

com.ionspin.kotlin.coroutines:kotlinx-coroutines-core:1.3.5-native-mt-arm-1.4-M2-SNAPSHOT

. It's on sonatype snapshot repo.