1.9.0

Wasm/WASI target support (#4064). Thanks, @igoriakovlev!
limitedParallelism now optionally accepts the name of the dispatcher view for easier debugging (#4023).
No longer initialize Dispatchers.IO on the JVM when other standard dispatchers are accessed (#4166). Thanks, @metalhead8816!
Introduced the Flow<T>.chunked(size: Int): Flow<List<T>> operator that groups emitted values into groups of the given size (#1290).
Closeable dispatchers are instances of AutoCloseable now (#4123).

Calling hasNext on a Channel's iterator is idempotent (#4065). Thanks, @gitpaxultek!
CoroutineScope() created without an explicit dispatcher uses Dispatchers.Default on Native (#4074). Thanks, @whyoleg!
Fixed a bug that prevented non-Android Dispatchers.Main from initializing when the Firebase dependency is used (#3914).
Ensured a more intuitive ordering of tasks in runBlocking (#4134).
Forbid casting a Mutex to Semaphore (#4176).
Worked around a stack overflow that may occur when calling asDeferred on a Future many times (#4156).

Advanced the deprecation levels for BroadcastChannel-based API (#4197).
Advanced the deprecation levels for the old kotlinx-coroutines-test API (#4198).
Deprecated Job.cancelFutureOnCompletion (#4173).
Promoted CoroutineDispatcher.limitedParallelism to stable (#3864).
Promoted CoroutineStart.ATOMIC from ExperimentalCoroutinesApi to DelicateCoroutinesApi (#4169).
Promoted CancellableContinuation.resume with an onCancellation lambda to stable, providing extra arguments to the lambda (#4088).
Marked the classes and interfaces that are not supposed to be inherited from with the new InternalForInheritanceCoroutinesApi opt-in (#3770).
Marked the classes and interfaces inheriting from which is not stable with the new ExperimentalForInheritanceCoroutinesApi opt-in (#3770).

Kotlin was updated to 2.0 (#4137).
Reworked the documentation for CoroutineStart and Channel-based API (#4147, #4148, #4167). Thanks, @globsterg!
Simplified the internal implementation of Job (#4053).
Small tweaks, fixes, and documentation improvements.

kotlinx.coroutines