.NET Core 3.1.0 Preview 2

.NET Core 3.1.0 Preview 2 is available and https://github.com/dotnet/core/issues/3744 has been opened for discussion.

[Release Notes](https://github.com/dotnet/core/blob/master/release-notes/3.1/preview/3.1.0-preview2.md)
[Download](https://dotnet.microsoft.com/download/dotnet-core/3.1)

**Blog posts**

[.NET Core](https://devblogs.microsoft.com/dotnet/announcing-net-core-3-1-preview-2/)
[ASP.NET Core](https://devblogs.microsoft.com/aspnet/asp-net-core-updates-in-net-core-3-1-preview-2/)

Please report any issues you find with .NET Core 3.1 Preview 2, either responding to https://github.com/dotnet/core/issues/3744, creating a new issue or creating a new issue in one of the following repos:
* [aspnet/Home](https://github.com/aspnet/Home) - for ASP.NET Core questions
* [aspnet/EntityFrameworkCore](https://github.com/aspnet/EntityFrameworkCore) - for Entity Framework Core questions
* [dotnet/cli](https://github.com/dotnet/cli/issues) - for CLI tools and questions
* [dotnet/corefx](https://github.com/dotnet/corefx/issues) - for API issues and questions
* [dotnet/coreclr](https://github.com/dotnet/coreclr/issues) - for runtime issues
* [dotnet/core-setup](https://github.com/dotnet/core-setup/issues) - for installer issues
* [dotnet/winforms](https://github.com/dotnet/winforms/issues) - for Winforms issues
* [dotnet/wpf](https://github.com/dotnet/wpf/issues) - for WPF issues
* [nuget/home](https://github.com/nuget/home/issues) - for NuGet questions and issues

This issue is an announcement for .NET Core 3.1.0 Preview 2, with release notes, download, and blog links rather than a requested repository change. Start by reading the linked release notes and discussion in dotnet/core issue 3744; there is no file, test, or concrete completion condition identified here.

Written by the indexing model from the issue text.