KB5005537 Cumulative Update .NET Framework 3.5 and 4.8 for Windows 11 - Oct.12

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October 12, 2021 - KB5005537 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 11​


The October 12, 2021 update for Windows 11 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 ChannelAvailableNext Step
Windows Update and Microsoft UpdateYesTo download and install this update, go to Settings > Update & Security > Windows Update, and then select Check for updates.
Microsoft Update CatalogYesTo get the standalone package for this update, go to the Microsoft Update Catalog website.
Windows Server Update Services (WSUS)YesThis update will automatically sync with WSUS if you configure Products and Classifications as follows:
Product: Windows 11
Classification: Security 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 for Windows 11 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: October 12, 2021-KB5005537 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 11



Direct download links for KB5005537 MSU file from Microsoft Update Catalog:

Download KB5005537 MSU for Windows 11 64-bit (x64) - 45.1 MB

Download KB5005537 MSU for Windows 11 ARM64 - 45.1 MB
 

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Brink

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TigerTom

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Thx Shawn. Will be interesting to see if "incompatible systems" like my W11 Test PC will also see these updates....
 

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    Samsung EVO850 SSD 250GB + Samsung 1TB HDD
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    be quiet 550W
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    be quiet PURE ROCK SLIM BK008
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    slow DSL, 10/1Mbps, but thats the best offer here
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    This is an older PC for testing new OS,
    Turthermore: 4 laptops on Win7 Ultimate x64, used for NAS, Media server, browsing, workshop and sound studio)

Dav

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Installed easily along with the other updates today on all three laptops.
Thank you for the info, as usual, Shawn
Dav
 

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TigerTom

The tiger's loose
Local time
11:04 PM
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Location
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Thx Shawn. Will be interesting to see if "incompatible systems" like my W11 Test PC will also see these updates....
okok, they just keep rollin' in :)
 

My Computers

System One System Two

  • Operating System
    W10 Enterprise LTSC
    Computer type
    PC/Desktop
    Manufacturer/Model
    custom
    CPU
    i7-2700K
    Motherboard
    Gigabyte GA-P67A-D3-B3
    Memory
    24GB
    Graphics Card(s)
    MSI GeForce RTX2060 Super
    Sound Card
    onboard
    Monitor(s) Displays
    Samsung curved
    Screen Resolution
    FHD
    Hard Drives
    Samsung EVO870 SSD 1TB
    Seagate Barracuda HDD 8TB
    PSU
    be quiet 550W
    Case
    CoolerMaster
    Cooling
    be quiet PURE ROCK SLIM BK008
    Keyboard
    KLIM Domination k852
    Mouse
    Logitech standard cordless
    Internet Speed
    10/1 DSL (the fastest line speed available here...)
    Browser
    Mozilla FF 91.2.0esr
    Antivirus
    Defender
    Other Info
    W10 GUI heavily modified to eye candy W7 look with Stardock Blinds.
    No MS Account!
    No MS apps!
    I upgraded to W10 only for gaming purposes, otherwise I'h kept my beloved W7 Ultimate x64
  • Operating System
    W11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    custom
    CPU
    Intel Core i5-2500
    Motherboard
    Gigabyte PH67A-D3-B3
    Memory
    4GB
    Graphics card(s)
    MSI Geforce 1050Ti
    Sound Card
    onboard
    Monitor(s) Displays
    FujitsuSiemens 19"
    Screen Resolution
    1280x1024 (oldschool 4:3)
    Hard Drives
    Samsung EVO850 SSD 250GB + Samsung 1TB HDD
    PSU
    be quiet 550W
    Case
    Mars MCNW ATX Gaming
    Cooling
    be quiet PURE ROCK SLIM BK008
    Mouse
    Dell optical with oldschool cord
    Keyboard
    Dell german 102
    Internet Speed
    slow DSL, 10/1Mbps, but thats the best offer here
    Browser
    Mozilla 91.2.0esr
    Antivirus
    Defender
    Other Info
    This is an older PC for testing new OS,
    Turthermore: 4 laptops on Win7 Ultimate x64, used for NAS, Media server, browsing, workshop and sound studio)
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