New Windows 11 24H2 April 2025 Update – New Features in the Main Release (Build 26100.3775 or KB5055523)

In this article, we will talk about the latest Windows 11 Update for the 24H2 Main Release, which is the Build 26100.3775 or KB5055523.

For those of you who are not familiar with how Windows 11 Updates for the Main Release work, I will explain it to you in the following lines.

Every month Windows 11 has a B and a C Release for Windows 11. Usually, the B Release is launched on the second Tuesday of the month and contains all the features that were tested in the previous month’s C Release.

New Improvements in this Update

• This update addresses security issues for your Windows operating system. 
• [Authentication] This update addresses an issue affecting machine password rotation in the Identity Update Manager certificate/Public Key Cryptography for Initial Authentication (PKNIT) path. This issue occurred particularly when Kerberos was used and Credential Guard was enabled, potentially causing user authentication problems. The feature Machine Accounts in Credential Gurad, which is dependent on password rotation via Kerberos, has also been disabled, until a permanent fix is made available.
• [Daylight Saving Time (DST)] Update for the Aysen region in Chile to support the government DST change order in 2025. For more info about DST changes, see the Daylight Saving Time & Time Zone Blog.
• [PcaUiArm] This update addresses an issue affecting the PcaUiArmUpdate feature, which results in unexpected behavior in specific scenarios.
• This Update also extends the rollout of all New Features announced last month in the March C Release Update.

Windows 11 Servicing Stack Update – 26100.3764

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. 

For more info about this Update, you can check this article from the Microsoft Blog.

For a more in-depth presentation of the New Update, you can watch the video below from the YouTube channel.