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by Andreas Eichhorn

OTC Public Images Release Notes October 2025

Windows

Updated Microsoft Windows Server Images with current Microsoft Windows Server Patches of October 2025, 15th

  • New updates for Windows Server 2016

    • 2025-10 Cumulative Update for Windows Server 2016 for x64-based Systems (KB5066836)
    • 2025-10 Servicing Stack Update for Windows Server 2016 for x64-based Systems (KB5066584)
    • Windows Malicious Software Removal Tool x64 - v5.136 (KB890830)
    • 2025-10 Cumulative Update for .NET Framework 4.8 for Windows Server 2016 for x64 (KB5066136)
  • New updates for Windows Server 2019

    • Windows Malicious Software Removal Tool x64 - v5.136 (KB890830)
    • 2025-10 Cumulative Update for Windows Server 2019 for x64-based Systems (KB5066586)
    • 2025-10 Cumulative Update for .NET Framework 3.5, 4.7.2 and 4.8 for Windows Server 2019 for x64 (KB5066738)
  • New updates for Windows Server 2022

    • Microsoft Edge-Stable Channel Version 141 Update for x64 based Editions (Build 141.0.3537.71)
    • Windows Malicious Software Removal Tool x64 - v5.136 (KB890830)
    • 2025-10 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Microsoft server operating system version 21H2 for x64 (KB5066743)
    • 2025-10 Cumulative Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5066782)
  • New updates for Windows Server 2025

    • Microsoft Edge-WebView2 Runtime Version 141 Update for x64 based Editions (Build 141.0.3537.71)
    • Microsoft Edge-Stable Channel Version 141 Update for x64 based Editions (Build 141.0.3537.71)
    • 2025-10 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Microsoft server operating system version 24H2 for x64 (KB5066131)
    • Windows Malicious Software Removal Tool x64 - v5.136 (KB890830)
    • 2025-10 Cumulative Update for Microsoft server operating system version 24H2 for x64-based Systems (KB5066835) (26100.6899)

Updated Drivers and Tools

  • NVIDIA driver updates for solving CVE-2025-23345 - see https://nvidia.custhelp.com/app/answers/detail/a_id/5703
    • NVIDIA grid driver 539.56 for Windows Server 2019, 2022, (2025 not officially supported) - Chocolatey Package OtcNvidiaDriverR535 539.56.0
    • NVIDIA grid driver 581.42 for Windows Server 2022, 2025 - no officiall OTC support - Chocolatey Package OtcNvidiaDriverR580 581.42.1
    • NVIDIA datacenter driver 581.42 for Windows Server 2022, 2025 (A100, H100 only)
    • NVIDIA datacenter driver 539.56 for Windows Server 2019 (A100, H100 only)

Unchanged Drivers and Tools

  • Cloudbase-Init: 1.1.6 (stable version) with OTC patch 1.0
    • service startup type is set to manual and triggerinfo is set to start/networkon (prevents error messages of not running cloudbase-init service)
  • .net Framework 4.8 (Windows Server 2016 and 2019 only)
  • virtIO KVM driver package version 0.1.262
  • Chocolatey client version 2.3.0