May 2020 .NET Updates

The following .NET updates were released on May 2020. This issue will be updated if there are any additional releases during the month.

## .NET Framework

* [.NET Framework May 2020 Security and Quality Rollup Updates](https://devblogs.microsoft.com/dotnet/net-framework-may-2020-security-and-quality-rollup-updates/)

## .NET Core
* [May 2020 Updates – 2.1.18 and 3.1.4](https://devblogs.microsoft.com/dotnet/net-core-may-2020/)

* .NET Core 3.1.4 and .NET Core SDK 3.1.104 ( [Release Notes](https://github.com/dotnet/core/blob/master/release-notes/3.1/3.1.4/3.1.4.md) | [Download](https://www.microsoft.com/net/download/dotnet-core/3.1) )

* .NET Core 2.1.18 and .NET Core SDK 2.1.806 ( [Release Notes](https://github.com/dotnet/core/blob/master/release-notes/2.1/2.1.18/2.1.18.md) | [Download](https://www.microsoft.com/net/download/dotnet-core/2.1)

## .NET Support Policies

Microsoft support policies are defined in the following documents:

* [Microsoft .NET Support Policy](https://www.microsoft.com/net/support/policy)
* [.NET Core OS Lifecycle Policy](https://github.com/dotnet/core/blob/master/os-lifecycle-policy.md)