.NET Core 3.1 Update - Microsoft Support
support.microsoft.com › en-us › topicNET Core 3.1 Supported Windows Versions provides the most up-to-date details on the supported operating system versions..NET Support Lifecycle. This page on .NET Core and .NET 5 Support Policy provides the most up-to-date details on .NET Core Support Lifecycle Policy. How to obtain help and support for this update. Microsoft Support
.NET 3.1 Update - Microsoft Support
support.microsoft.com › en-us › topic.NET Core 3.1 servicing updates are upgrades, that is, the latest servicing update for 3.1 will remove the previous 3.1 update upon successful installation. For example, when .NET Core 3.1.24 is installed, .NET Core 3.1.23 and earlier versions will be removed from the computer if present.