The standout "feature" of 4.8 is not a new API, but a massive overhaul of . This was necessary to meet government and enterprise standards (like Section 508 in the US).
Look for Release DWORD → indicates .NET 4.8. dotnet48
However, for new applications or when possible, consider .NET 6 or .NET 7/8 for cross-platform support and the latest features. The standout "feature" of 4
Assuming you might be referring to ".NET 4.8", here is some relevant information: for new applications or when possible
Enhanced support for screen readers and high-contrast themes in Windows Forms and WPF.
Support for newer hash algorithms and better integration with Windows Certificate Stores.