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Why `ReceiveChannel.toSet()` and `ReceiveChannel.toMap()` are `ObsoleteCoroutinesApi` but `ReceiveChannel.toList()` is not?

toList is basic we’ll likely leave it. Others will be likely moved to new apis

Don’t make long-going conclusions based on that please, though. It is still pending design. 

But `Iterable.asReceiveChannel()` was at the same status, and in 1.0.0 it disappeared <@U2E974ELT>. Will all the other `ObsoleteCoroutinesApi` at least go through a deprecation stage before being removed, or might they be removed suddenly?

<@U6P03BM0W>, Based on this discussion: <https://github.com/Kotlin/kotlinx.coroutines/issues/632> There will be deprecation stage and migration aids

<@U8X1UM66N> Thanks, I just got scared since, in the 1.0 api review asReceiveChannel was deprecated, and then in 1.0.0 it seems like it was suddenly removed. Even though I got the same answer... <https://kotlinlang.slack.com/archives/C1CFAFJSK/p1540402626000100?thread_ts=1540400798.000100&amp;cid=C1CFAFJSK>. I guess that'll change with 1.0.0 :slightly_smiling_face:

<https://github.com/Kotlin/kotlinx.coroutines/commit/27b8f45803455125cddf99b3f03c0ea37e3c55e8#diff-5ac1ab0fda64e5be7f85aef9638b6702>

1.0.0 is stable and it means nothing is going to be disappearing anymore. 

I thought the experimental/obsolete parts are still not stable... thanks for confirmation that there'll be no more sudden disappearing :slightly_smiling_face:! I started wondering if I should copy obsolete things I used frequently into my code...

If we break something accidentally, file a bug and we’ll fix it.