This is the second preview of ASP.NET SignalR 2.4.0. There aren't any major new features or functionality in this release but a number of bugs have been fixed.

It should be compatible with your existing applications so please feel free to upgrade even if you aren't planning to use the Azure SignalR Service and report any bugs you find so we can make sure this release is a fully compatible upgrade!

See a list of fixed issues here: https://github.com/SignalR/SignalR/issues?utf8=%E2%9C%93&q=is%3Aissue+is%3Aclosed+label%3A%22shipped-in%3A+2.4.0-preview2%22+

See issues planned to be fixed in future 2.4.0 releases here: https://github.com/SignalR/SignalR/issues?utf8=%E2%9C%93&q=is%3Aissue+is%3Aopen+milestone%3A2.4.0+

The following packages have been released to NuGet.org:

|Package ID|Version| |-|-| |Microsoft.AspNet.SignalR|2.4.0-preview2-20181018-02| |Microsoft.AspNet.SignalR.Client|2.4.0-preview2-20181018-02| |Microsoft.AspNet.SignalR.Core|2.4.0-preview2-20181018-02| |Microsoft.AspNet.SignalR.JS|2.4.0-preview2-20181018-02| |Microsoft.AspNet.SignalR.Redis|2.4.0-preview2-20181018-02| |Microsoft.AspNet.SignalR.SelfHost|2.4.0-preview2-20181018-02| |Microsoft.AspNet.SignalR.ServiceBus|2.4.0-preview2-20181018-02| |Microsoft.AspNet.SignalR.ServiceBus3|2.4.0-preview2-20181018-02| |Microsoft.AspNet.SignalR.SqlServer|2.4.0-preview2-20181018-02| |Microsoft.AspNet.SignalR.SystemWeb|2.4.0-preview2-20181018-02| |Microsoft.AspNet.SignalR.Utils|2.4.0-preview2-20181018-02|

Also, the localized satellite packages have been uploaded as well.

The following NPM modules have been released to npmjs.com

|Package ID|Version|Tag| |-|-|-| |signalr|2.4.0-preview2-20181018-02|next|

To install the preview release of the NPM package, use the command npm install signalr@next