What does

you can simply call old suspend functions

in the 1.3-m2 release notes actually mean? I can not link against old coroutine based jars, cause they probably depend on classes in the old kotlinx-coroutines-core packages, right?

you can now depend on old coroutine jars, too

but that gives me

java.lang.NoClassDefFoundError: kotlinx/coroutines/experimental/CoroutineDispatcher