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Release 0.26.0: Structured concurrency Β· Kotlin/kotlinx.coroutines Β· GitHub
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0.26.0: Structured concurrency
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- Major rework of
kotlinx.coroutines
concurrency model (see #410 for a full explanation of the rationale behind this change):- All coroutine builders are now extensions on
CoroutineScope
and inherit itscoroutineContext
. Standalone builders are deprecated. - As a consequence, all nested coroutines launched via builders now automatically establish parent-child relationship and inherit
CoroutineDispatcher
. - All coroutine builders use
Dispatchers.Default
by default ifCoroutineInterceptor
is not present in their context. - CoroutineScope became the first-class citizen in
kolinx.coroutines
. withContext
block
argument hasCoroutineScope
as a receiver.- GlobalScope is introduced to simplify migration to new API and to launch global-level coroutines.
currentScope
andcoroutineScope
builders are introduced to extract and provideCoroutineScope
.- Factory methods to create
CoroutineScope
fromCoroutineContext
are introduced. CoroutineScope.isActive
became an extension property.- New sections about structured concurrency in core guide: "Structured concurrency", "Scope builder" and "Structured concurrency with async".
- New section in UI guide with Android example: "Structured concurrency, lifecycle and coroutine parent-child hierarchy".
- Deprecated reactive API is removed.
- All coroutine builders are now extensions on
- Dispatchers are renamed and grouped in the Dispatchers object (see #41 and #533):
- Dispatcher names are consistent.
- Old dispatchers including
CommonPool
are deprecated.
- Fixed bug with JS error in rare cases in
invokeOnCompletion(onCancelling = true)
. - Fixed loading of Android exception handler when
Thread.contextClassLoader
is mocked (see #530). - Fixed bug when
IO
dispatcher silently hung (see #524 and #525).
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