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v.1.6.2 - 2021 - March 25

  • Fixed issues
    • [#371]:(stlab#371 include in concurrency/utility.hpp
    • The _hold for detach was being done on the executor instead of the continuation. The result was a (silenced) broken exception getting thrown if detach() is called on a ready exception. This would trigger an exception which is caught internally in a packaged task and dropped.
     stlab::make_ready_future(stlab::immediate_executor).detach();
    • Fixed an issue with the serial queue using a "temporary" executor which was copied into the future shared state.
    • Added stealing to blocking_get
    • Also cleaned up blocking_get implementation.
    • blocking_get_for() added
    • Fix for make_exceptional_future and improvements blocking_get_for added
    • deprecated blocking_get() with timeout
    • Fixing bugs and naming our threads
    • Fixed issue with backoff
    • min() duration on a clock apparently is not a minimum length duration as documented, but is a negative duration... instead we us a single tick.
    • Update utility.hpp

v.1.6.1 - 2021 - February 10

  • Fixed issues
    • [#363]:(stlab#363) Wrong version in the 1.6.0 release

v1.6.0 - 2021 - February 9

  • Backport the library to support C++14 and later
  • Better auto-configuration - no need for compiler flags.
  • Supported for threaded wasm using the portable tasking system (auto-configured).

v1.5.6 - 2021 - February 1

  • Fixed issues
    • [#352]:(stlab#352) Non portable 'warning' preprocessor command
    • [#354]:(stlab#354) Visual Studio 2017 fails to compiler async with std::function as argument

v1.5.5 - 2021 - January 29

  • Fixed issues
    • #317: Recovery continuations not invoked on broken promises
  • Better conan.io support (Many thanks to Fernando Pelliccioni)
  • Fix several minor scripting and configuration issues (Many thanks to Fernando Pelliccioni)
  • Fix in SerialQueue UnitTest that could lead to dead lock on systems with few cores

v1.5.3 - 2020 - September 16

  • Fixed issues

    • #312: default_executor implementation for Windows has a memory leak
    • #305 stlab/concurrency/future.hpp won't compile with C++20
    • #303 range based stlab::when_any data race

  • Enhancement

    • Adding Forest container and algorithms

v1.5.2 - 2020 - February 05

  • Fixed issues
    • #292: What happened to our mutable lambdas?
    • #287: future's then doesn't fully support mutable lambdas yet

v1.5.1 - 2019 - October 29

  • Fixed issues
    • #285: steady_clock.now()
    • #262: time_point_to_FILETIME() to duration_to_FILETIME()

v1.5.0 - 2019 - August 17

  • Fixed issues

    • #264: future::error() interface is odd
    • #260: set_exception() should be a const member.
    • #248: Lifetime of receivers returned by operator|
    • #243: Vector of move only type passed to continuation fails to compile.

  • Enhancements

    • #269: Extend the default_executor with high and low priority
    • #262: system_timer interface is cumbersome. Now it accepts a duration from now. The previously available interface with a time_point is marked as deprecated and will be removed in a future release.

v1.4.1 - 2019 - February - 08

  • Fixed Issues
    • #234: version is incorrect in stlabConfig.cmake
    • #229: SIGBUS in future destructor
    • #220: make_ready_future for move-only types

v1.4.0 - 2018 - December - 12

  • Fixed Issues

    • #208: g++8.2.0 compiling error
    • #206: channels does not allow processes as lvalues, only as rvalue
    • #204: when_all does not support move-only types
    • #192: Issues with executor_t and when_all()
    • #188: question: channels and slow processes

  • Enhancements

    • #212: Join of future with move only type is missing
    • #199: add operator|() as continuable operator
    • It is now possible to create with channel() a receiver (not a pair<sender, receiver>)

  • Library Changes

    • Now C++17 is required to use the channels (This change was necessary, because the code became really messy to dispatch between copyable, move-only and void types)

  • Additional Comments

v1.3.3 - 2018 - October - 25

  • Fixed Issues

    • #154 : Compilation error with gcc
    • Race condition in timed blocking_get

  • Enhancements

    • The library can now be included as cmake dependency (Many thanks to Austin McCartney)

v1.3.2 - 2018 - July - 28

  • Fixed Issues
    • #169 : when_all() appears to ignore the passed-in executor

v1.3.1 - 2018 - July - 21

  • Fixed Issues
    • #169 : when_all() appears to ignore the passed-in executor
    • #168 : Main Executor requires "widgets" to be dragged into Qt build
    • #167 : Main Executor has potential segfault
    • #166 : Multiple task_system and system_timer are being created

v1.3.0 - 2018 - July - 15

  • Fixed Issues
    • #160 : main_executor for lib dispatch: operator() missing const qualifier
    • #156 : set_error() does not get called
    • #134 : Using future<>::detach() is a possible memory leak
    • #107 : Some channel functions have problematic names
  • Library Breaking Changes
    • Concurrency Library
      • The functionality of channel's zip has changed. Now it behaves comparable to the ranges TS zip. The previous functionality is replaced with zip_with.
      • The merge and join functions are now deprecated and are replaced with merge_channel<unordered_t>and merge_channel<round_robin_t>.

v1.2.0 - 15 June 2018

  • Fixed Issues
    • #146 : when_all() does not compile with move-only objects
    • #142 : boost/variant.hpp: No such file or directory
    • #119 : blocking_get randomly does not return
  • Library Additions
    • Concurrency Library
      • Adding usage of std::optional, std::variant or std::experimental::optional when compiling with C++17 mode. So the dependency to boost.optional is optional.
      • Adding co-routine support for futures. (Only for VS 2017 and clang 5.0)
      • Adding main_executor for Qt support

v1.1.1 - 13 December 2017

  • Fixed Issues
    • #113 : Reduction does not appear to work for failed futures; Many thanks to Frans-Willem!
    • #115 : Version number is forgotten in version.hpp?

v1.1 - 28 November 2017

  • Fixed Issues
    • #94 : Use of moved executor in futures.hpp:1234
    • #93 : Stack overflow with exception handling in futures
    • #85 : (non-default) Executors and make_ready_future
    • #80 : stlab::async will not accept non-const reference parameters
    • #79 : when_all does not support continuing futures that return void
    • #69 : Support move-only tasks
    • #59 : task_system and notification_queue doesn't work with move only lambda
    • #26 : channel TODO get process state under mutex?
    • #18 : future TODO get_try()
  • Library Additions
    • Concurrency library
      • serial queue
      • task
      • Added feature requests #95 (flatten futures) and #38 (reduction on future<void>). Reduction of futures is now supported. So a future<future<T>> is reduced to future<T>. Currently this is restricted to copyable types T.
    • copy on write
    • scope
    • Test library
      • annotate
      • regular
      • move-only
  • Build & Test Improvements
    • CMake overhaul
    • Extended Travis CI support
    • AppVeyor support
  • Breaking Changes
    • With Issue #85 the interface of make_ready_future and make_exceptional_future now require an executor as a second parameter.

v1.0 - 10 June 2017

  • Added the concurrency library:
    • futures
    • executors
    • channels