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@qwwdfsad qwwdfsad released this 13 Dec 12:47
· 1197 commits to master since this release
1.3.3
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Learn about vigilant mode.

Flow

  • Flow.take performance is significantly improved (#1538).
  • Flow.merge operator (#1491).
  • Reactive Flow adapters are promoted to stable API (#1549).
  • Reusable cancellable continuations were introduced that improved the performance of various flow operators and iteration over channels (#1534).
  • Fixed interaction of multiple flows with take operator (#1610).
  • Throw NoSuchElementException instead of UnsupportedOperationException for empty Flow in reduce operator (#1659).
  • onCompletion now rethrows downstream exceptions on emit attempt (#1654).
  • Allow non-emitting withContext from flow builder (#1616).

Debugging

  • DebugProbes.dumpCoroutines is optimized to be able to print the 6-digit number of coroutines (#1535).
  • Properly capture unstarted lazy coroutines in debugger (#1544).
  • Capture coroutines launched from within a test constructor with CoroutinesTimeout test rule (#1542).
  • Stacktraces of Job-related coroutine machinery are shortened and prettified (#1574).
  • Stacktrace recovery unification that should provide a consistent experience recover of stacktrace (#1597).
  • Stacktrace recovery for withTimeout is supported (#1625).
  • Do not recover exception with a single String parameter constructor that is not a message (#1631).

Other features

  • Dispatchers.Default and Dispatchers.IO rework: CPU consumption is significantly lower, predictable idle threads termination (#840, #1046, #1286).
  • Avoid ServiceLoader for loading Dispatchers.Main (#1572, #1557, #878, #1606).
  • Consistently handle undeliverable exceptions in RxJava and Reactor integrations (#252, #1614).
  • yield support in immediate dispatchers (#1474).
  • CompletableDeferred.completeWith(result: Result<T>) is introduced.
  • Added support for tvOS and watchOS-based Native targets (#1596).

Bug fixes and improvements

  • Kotlin version is updated to 1.3.61.
  • CoroutineDispatcher.isDispatchNeeded is promoted to stable API (#1014).
  • Livelock and stackoverflows in mutual select expressions are fixed (#1411, #504).
  • Properly handle null values in ListenableFuture integration (#1510).
  • Making ReceiveChannel.cancel linearizability-friendly.
  • Linearizability of Channel.close in a complex contended cases (#1419).
  • ArrayChannel.isBufferEmpty atomicity is fixed (#1526).
  • Various documentation improvements.
  • Reduced bytecode size of kotlinx-coroutines-core, reduced size of minified dex when using basic functionality of kotlinx-coroutines.
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