KB5005539 Cumulative Update .NET Framework 3.5 and 4.8 for Windows 10 Win Update

    KB5005539 Cumulative Update .NET Framework 3.5 and 4.8 for Windows 10

    KB5005539 Cumulative Update .NET Framework 3.5 and 4.8 for Windows 10

    Cumulative Update Preview for Windows 10 version 2004, 20H2, and 20H1 - Oct. 12
    Category: Win Update
    Last Updated: 14 Oct 2021 at 11:58

    October 12, 2021 - KB5005539 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10, version 2004, Windows Server, version 2004, Windows 10, version 20H2, Windows Server, version 20H2, and Windows Version 21H1

    The October 12, 2021 update for Windows 10, version 2004, Windows Server, version 2004, Windows 10, version 20H2, Windows Server, version 20H2, and Windows Version 21H1 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 Prerequisites and Restart requirement sections.

    Quality and reliability improvements

    CLR1 - The existing memory pressure algorithm used in the GC.AddMemoryPressure API is triggering induced GC too aggressively. This update provides an alternative algorithm that is less aggressive. An application can opt into the new algorithm, by setting:
    COMPlus_GCNewMemoryPressure environment variable to 1
    This is applicable for any application that use the GC.AddMemoryPressure API.
    1 Common Language Runtime (CLR)

    How to get this update

    Install this update

    Release Channel Available Next Step
    Windows Update and Microsoft Update Yes To download and install this update, go to Settings > Update & Security > Windows Update, and then select Check for updates.
    Microsoft Update Catalog Yes To get the standalone package for this update, go to the Microsoft Update Catalog website.
    Windows Server Update Services (WSUS) Yes This update will automatically sync with WSUS if you configure Products and Classifications as follows:
    Product: Windows 10, version 2004, Windows Server, version 2004, Windows 10, version 20H2, and Windows Server, version 20H2, and Windows Version 21H1
    Classification: Updates

    File information

    For a list of the files that are provided in this update, download the file information for cumulative update.

    Prerequisites

    To apply this update, you must have .NET Framework 3.5 or 4.8 installed.

    Restart requirement

    You must restart the computer after you apply this update if any affected files are being used. We recommend that you exit all .NET Framework-based applications before you apply this update.

    How to obtain help and support for this update


    Known issues in this update

    Microsoft is not currently aware of any issues in this update.


    Source: https://support.microsoft.com/en-us/...4-4285141e46fe

    See also: https://devblogs.microsoft.com/dotne...uality-rollup/
    Brink's Avatar Posted By: Brink
    12 Oct 2021


  1. Posts : 100
    Windows 10 Home v22H2 OS Build 19045.4239
       #1

    Why was this update installed on 10/1/21 if it is just released today?
      My Computer


  2. Posts : 68,652
    64-bit Windows 11 Pro for Workstations
    Thread Starter
       #2

    LTSnow said:
    Why was this update installed on 10/1/21 if it is just released today?
    The one released on 10/1 was a preview. This is the WHQL.

    KB5005539 Cumulative Update .NET Framework 3.5 and 4.8 for Windows 10
      My Computers


  3. Posts : 100
    Windows 10 Home v22H2 OS Build 19045.4239
       #3

    Brink said:
    The one released on 10/1 was a preview. This is the WHQL.

    KB5005539 Cumulative Update .NET Framework 3.5 and 4.8 for Windows 10
    Thanks Brink. I tried to install it and it said it was already installed. So I guess the preview is good enough.
      My Computer


  4. Posts : 68,652
    64-bit Windows 11 Pro for Workstations
    Thread Starter
       #4

    LTSnow said:
    Thanks Brink. I tried to install it and it said it was already installed. So I guess the preview is good enough.
      My Computers


 

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