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kotlinx.coroutines v1.5.1 Release Notes

    • ⚡️ Atomic update, getAndUpdate, and updateAndGet operations of MutableStateFlow (#2720).
    • Executor.asCoroutineDispatcher implementation improvements (#2601):
      • If the target executor is ScheduledExecutorService, then its schedule API is used for time-related coroutine operations.
      • RemoveOnCancelPolicy is now part of the public contract.
    • Introduced overloads for Task.asDeferred and Task.await that accept CancellationTokenSource for bidirectional cancellation (#2527).
    • ⚡️ Reactive streams are updated to 1.0.3 (#2740).
    • 👻 CopyableThrowable is allowed to modify the exception message during stacktrace recovery (#1931).
    • 🚀 CoroutineDispatcher.releaseInterceptedContinuation is now a final method (#2785).
    • Closing a Handler underlying Handler.asCoroutineDispatcher now causes the dispatched coroutines to be canceled on Dispatchers.IO (#2778).
    • ⚡️ Kotlin is updated to 1.5.20.
    • 🛠 Fixed a spurious ClassCastException in releaseInterceptedContinuation and IllegalStateException from tryReleaseClaimedContinuation (#2736, #2768).
    • 🛠 Fixed inconsistent exception message during stacktrace recovery for non-suspending channel iterators (#2749).
    • 🛠 Fixed linear stack usage for CompletableFuture.asDeferred when the target future has a long chain of listeners (#2730).
    • Any exceptions from CoroutineDispatcher.isDispatchNeeded are now considered as fatal and are propagated to the caller (#2733).
    • 🚚 Internal DebugProbesKt (used in the debugger implementation) are moved from debug to core module.