Microsoft released KB4598299 Cumulative Preview update for .NET Framework 3.5 and 4.8 to the public.

This update applies to Windows Server 20H2, Windows Server 2004, Windows 10 2004, x64, x86, ARM, and Windows 10 20H2, x64, x86, ARM.

Microsoft note: The February 2, 2021 update for Windows 10, version 2004, Windows Server, version 2004, Windows 10, version 20H2, and Windows Server, version 20H2 includes cumulative reliability improvements in .NET Framework 3.5 and 4.8. We recommend that you apply this update as part of your regular maintenance routines. Before you install this update, see the Prerequisite and Restart requirements sections.

Changes in this Update:

ASP.NET

– Addresses an issue where after installing the update released on October 20th, some ASP.Net applications fail during precompilation – likely with a message that contains the words “Error ASPCONFIG.”
WPF1 – Addresses a hang when scrolling to the end of a TreeView, when layout rounding is enabled and DPI scaling is not 100%.
CLR2

– Improves the reliability of automatic Native Image generation task.

 

Download: KB4598299Support Notes