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:mega: :mega: :mega: `kotlinx.coroutines` 1.0.0-RC1 is here!
It is now based on Kotlin 1.3-RC with non-experimental coroutines, leaves its experimental status and all API is stabilized or marked as experimental.

Of course it couldn’t be possible without our community, thank you for your invaluable feedback and fearless adoption of `0.x` library! :heart:

Changelog:
* Coroutines API is updated to Kotlin 1.3.
* Deprecated API is removed or marked as `internal`.
* Experimental and internal coroutine API is marked with the corresponding `kotlin.experimental.Experimental` annotation. If you are using `@ExperimentalCoroutinesApi` or `@InternalCoroutinesApi` you should explicitly opt-in otherwise, compilation warning (or error) will be produced.
* Unconfined and immediate-like dispatchers are now `StackOverflowError`-safe and form an event loop on top of the current thread.
* Performance improvements and bug fixes. Full changelog can be found here: <https://github.com/Kotlin/kotlinx.coroutines/releases/tag/1.0.0-RC1>