Microsoft.AspNet.SignalR.SystemWeb 2.4.3 The ID prefix of this package has been reserved for one of the owners of this package by NuGet.org. Prefix Reserved

.NET Framework 4.5 
Install-Package Microsoft.AspNet.SignalR.SystemWeb -Version 2.4.3
dotnet add package Microsoft.AspNet.SignalR.SystemWeb --version 2.4.3
<PackageReference Include="Microsoft.AspNet.SignalR.SystemWeb" Version="2.4.3" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
paket add Microsoft.AspNet.SignalR.SystemWeb --version 2.4.3
The NuGet Team does not provide support for this client. Please contact its maintainers for support. 
#r "nuget: Microsoft.AspNet.SignalR.SystemWeb, 2.4.3"
#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.AspNet.SignalR.SystemWeb as a Cake Addin
#addin nuget:?package=Microsoft.AspNet.SignalR.SystemWeb&version=2.4.3

// Install Microsoft.AspNet.SignalR.SystemWeb as a Cake Tool
#tool nuget:?package=Microsoft.AspNet.SignalR.SystemWeb&version=2.4.3
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Incredibly simple real-time web for .NET. Components for using ASP.NET SignalR in applications hosted on System.Web.

Product Versions
.NET Framework net45 net451 net452 net46 net461 net462 net463 net47 net471 net472 net48
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (46)

Showing the top 5 NuGet packages that depend on Microsoft.AspNet.SignalR.SystemWeb:

Package Downloads
Microsoft.AspNet.SignalR The ID prefix of this package has been reserved for one of the owners of this package by NuGet.org.

Incredibly simple real-time web for .NET. This package pulls in the server components and JavaScript client required to use SignalR in an ASP.NET application.
CloudCore.Site

The modules required to build CloudCore-based web roles/sites.
Microsoft.AspNet.SignalR.SystemWeb.zh-Hans The ID prefix of this package has been reserved for one of the owners of this package by NuGet.org.

此程序包包含适用于 ASP.NET SignalR SystemWeb 的简体中文附属程序集。
Microsoft.AspNet.SignalR.SystemWeb.fr The ID prefix of this package has been reserved for one of the owners of this package by NuGet.org.

Ce package inclut les assemblys satellites en français pour ASP.NET SignalR SystemWeb.
Bifrost.Web

Bifrost is a platform designed to build Line of Business applications without sacrificing architectural quality, code quality or scalability.

GitHub repositories (23)

Showing the top 5 popular GitHub repositories that depend on Microsoft.AspNet.SignalR.SystemWeb:

Repository Stars
Sonarr/Sonarr
Smart PVR for newsgroup and bittorrent users.
projectkudu/kudu
Kudu is the engine behind git/hg deployments, WebJobs, and various other features in Azure Web Sites. It can also run outside of Azure.
aspnet/SignalR
[Archived] Incredibly simple real-time web for ASP.NET Core. Project moved to https://github.com/aspnet/AspNetCore
pnp/PnP
SharePoint / Office 365 Developer Patterns and Practices - Archived older solutions. Please see https://aka.ms/m365pnp for updated guidance
JabbR/JabbR
Collaborative chat done right
Version Downloads Last updated
2.4.3 98,717 1/21/2022
2.4.2 589,527 4/30/2021
2.4.1 4,173,657 4/10/2019
2.4.0 1,398,901 11/14/2018
2.4.0-preview2-20181018-02 13,520 10/18/2018
2.4.0-preview1-20180920-03 8,735 9/21/2018
2.3.0 1,511,831 6/26/2018
2.2.3 1,121,825 3/14/2018
2.2.2 4,159,946 5/4/2017
2.2.2-preview1 7,493 4/13/2017
2.2.1 3,165,519 7/18/2016
2.2.0 3,509,119 1/13/2015
2.1.2 774,964 9/15/2014
2.1.1 277,568 7/25/2014
2.1.0 89,003 6/17/2014
2.0.3 272,285 3/27/2014
2.0.2 133,041 1/24/2014
2.0.1 100,742 12/10/2013
1.2.2 220,089 8/29/2014
1.2.1 32,074 2/17/2014
1.2.0 17,642 12/19/2013
1.1.4 178,790 12/10/2013
1.0.1 115,700 2/28/2013
1.0.0 164,911 2/18/2013
1.0.0-rc2 25,342 1/15/2013
1.0.0-rc1 15,956 12/13/2012

https://github.com/SignalR/SignalR/releases