Windows Server, Version 20H2 Build 19042.1526 (Win x64)

February 8, 2022-KB5010342 (OS Builds 19042.1526, 19043.1526, and 19044.1526)
Windows 10, version 20H2, all editions Windows Server, version 20H2, all editions Windows 10, version 21H1, all editions Windows 10, version 21H2, all editions
Highlights
- Updates security for your Windows operating system.
This security update includes quality improvements. Key changes include:
- Addresses an issue that causes a Lightweight Directory Access Protocol (LDAP) modify operation to fail if the operation contains the SamAccountName and UserAccountControl attributes. The error message is, "Error: 0x20EF. The directory service encountered an unknown failure".
- Addresses a known issue that might prevent recent emails from appearing in search results in the Microsoft Outlook desktop app. This issue is related to emails that have been stored locally in a .pst or .ost files. It might affect POP and IMAP accounts, as well as accounts hosted on Microsoft Exchange and Microsoft 365. If the default search in the Microsoft Outlook app is set to server search, the issue will only affect the advanced search.
Windows 10 servicing stack update - 19042.1525, 19043.1525, and 19044.1525
This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates (SSU) ensure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates.
Windows Server, version 2004is a Semi-Annual Channel (SAC) Release. In our most recent Windows Server SAC releases, we've optimized for containers. In this release, we continued improving fundamentals for the core container platform such as performance and reliability. We've also worked with .NET team and PowerShell team and further optimized image size and performance for Server Core containers. We will share more details below. On container networking side, we implemented several improvements to allow for better scalability, robustness, and reliability. One example is additional changes and improvements to Direct Server Return (DSR).
Windows Server, version 20H2 is the next Semi-Annual Channel release of Windows Server, version 2004. This version focuses on reliability, performance, and other general improvements, but has no new features. Like other Semi-Annual Channel releases, it's supported for 18 months after its release.
Microsoft Corporation,leading developer of personal-computer software systems and applications. The company also publishes books and multimedia titles, offers e-mail services, and sells electronic game systems, computer peripherals (input/output devices), and portable media players. It has sales offices throughout the world.



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