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kotlinx.coroutines v0.8-beta Release Notes

    • 🏗 defer coroutine builder is renamed to async.
    • 🗄 lazyDefer is deprecated, async has an optional start parameter instead.
    • 🗄 LazyDeferred interface is deprecated, lazy start functionality is integrated into Job interface.
    • launch has an optional start parameter for lazily started coroutines.
    • 👷 Job.start and Job.isCompleted are introduced.
    • Deferred.isCompletedExceptionally and Deferred.isCancelled are introduced.
    • 👷 Job.getInactiveCancellationException is renamed to getCompletionException.
    • 👷 Job.join is now a member function.
    • 🆕 Internal JobSupport state machine is enhanced to support new (not-started-yet) state. So, lazy coroutines do not need a separate state variable to track their started/not-started (new/active) status.
    • 👷 Exception transparency in Job.cancel (original cause is rethrown).
    • 👷 Clarified possible states for Job/CancellableContinuation/Deferred in docs.
    • 💅 Example on async-style functions and links to API reference site from [coroutines guide](docs/topics/coroutines-guide.md).