Hello guys, someone of you have an idea when coroutines are going to have stable version? do you consider them as a rx substitution or parallel use?

Coroutines and Kotlinx.Coroutines are already stable for production

You can use coroutines today. In fact, there's some great libraries with extension methods for Retrofit to make it easy. The "experimental" tag just means the API may change slightly in the next major version of Kotlin, but will stay static within major versions. It's not 1:1 with Rx and both have their own useful purposes. In fact, someone could develop Rx on top of coroutines if one wanted.

owh! I was confused because i heard in some meetups and reading that was not so stable and dont use it in production, thanks both of you!

I just switched from RxJava to Coroutines and it is sooo much easier

someone could develop Rx on top of coroutines if one wanted

There is a few experiments with proof of concept of this approach https://github.com/JakeWharton/Reagent