2025年8月5日，微信官方今日推出全新的Windows内测版本，此次更新的版本号为4.1.0，相较于7月1日发布的4.0.6版本，此次更新属于较大版本升级。

Prerequisite check for .NET framework failed when .NET Framework 4.0 was the only version installed; KB962229. Sync Framework assemblies were disabled in the Visual Studio 2010 Add References dialog ...

Why not make .NET part of the operating system and just keep it simple with 1 version. So when .NET 4.0 comes it out removes all other instances and it becomes the only version running.