[German]On 28 January 2020, Microsoft released cumulative update KB4534132 for .NET Framework 3.5 and 4.8 for Windows 10 Version 190x and Windows Server 2019. Microsoft recommends that you install this update as part of your regular maintenance routines. For details on the prerequisites, see the linked KB article.
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I installed KB4534132 and immediately experienced latency issues across many applications. Delays between key strokes and type appearing on screen, delays clicking on icons, scrolling delays. Pages take exponentially more time to load. Performance decreased across the board. I immediately uninstalled it and performance returned to normal. This was very similar to what I experienced after installing Version 1909 until Microsoft finally released the patch. I recommend people do NOT install this update until Microsoft addresses these issues.