Microsoft.Bcl.Async 1.0.14-rc

The ID prefix of this package has been reserved for one of the owners of this package by Prefix Reserved
.NET Framework 4.0
Additional Details

This package has been deprecated as part of the .NET Package Deprecation effort. You can learn more about it from

This is a prerelease version of Microsoft.Bcl.Async.
There is a newer version of this package available.
See the version list below for details.
dotnet add package Microsoft.Bcl.Async --version 1.0.14-rc
NuGet\Install-Package Microsoft.Bcl.Async -Version 1.0.14-rc
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="Microsoft.Bcl.Async" Version="1.0.14-rc" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Microsoft.Bcl.Async --version 1.0.14-rc
#r "nuget: Microsoft.Bcl.Async, 1.0.14-rc"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install Microsoft.Bcl.Async as a Cake Addin
#addin nuget:?package=Microsoft.Bcl.Async&version=1.0.14-rc&prerelease

// Install Microsoft.Bcl.Async as a Cake Tool
#tool nuget:?package=Microsoft.Bcl.Async&version=1.0.14-rc&prerelease

This package enables Visual Studio 2012 projects targeting .NET Framework 4 (with KB2468871), Silverlight 4 and 5, and Windows Phone 7.5 (including any portable library combinations) to use the new 'async' and 'await' keywords. This package also includes Task-based extension methods that allow using some of the existing asynchronous APIs with the new language keywords. Windows Phone 8 projects can use this package to get access to async extension methods for the networking types.

This package is not supported in Visual Studio 2010, and is only required for projects targeting .NET Framework 4.5 or .NET for Windows Store apps when consuming a library that uses this package. For known issues, please see:

Product Versions
.NET Framework net40 net403 net45 net451 net452 net46 net461 net462 net463 net47 net471 net472 net48
Silverlight sl4 sl4-wp71 sl5
Windows Phone wp8 wp81
Windows Store win8
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.
  • .NETFramework 4.5

    • No dependencies.
  • All Frameworks

  • Portable Class Library (.NETFramework 4.5, Windows 8.0, WindowsPhone 8.0)

    • No dependencies.
  • Windows 8.0

    • No dependencies.
  • WindowsPhone 8.0

    • No dependencies.

NuGet packages (555)

Showing the top 5 NuGet packages that depend on Microsoft.Bcl.Async:

Package Downloads
SendGrid The ID prefix of this package has been reserved for one of the owners of this package by

C# client library and examples for using Twilio SendGrid API's to send mail and access Web API v3 endpoints with .NET Standard 1.3 and .NET Core support.


JSON Schema reader, generator and validator for .NET


.NET library with advanced reflection APIs like XML documentation reading, Null Reference Types (C# 8) reflection and string based type checks.


LinqKit.Core contains extensions for LINQ to SQL and Entity Framework. Note that Include(...), IAsync and IDbAsync are not supported.


CSharpFunctionalExtensions - functional extensions for C#

GitHub repositories (84)

Showing the top 5 popular GitHub repositories that depend on Microsoft.Bcl.Async:

Repository Stars
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Version Downloads Last updated
1.0.168 24,661,351 4/11/2014
1.0.166 139,957 4/1/2014
1.0.166-beta 8,976 3/19/2014
1.0.165 1,521,418 11/13/2013
1.0.16 913,180 4/18/2013
1.0.14-rc 83,558 1/31/2013
1.0.12-beta 8,516 10/25/2012
1.0.11-beta 7,519 10/22/2012