In this article, we will talk about the latest Windows 11 Update for the Main Release, which is Build 22621.2428 or KB5031354.
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.
Particular to this Build, you can encounter the following:
To protect against CVE-2023-44487, you should install the latest Windows update. Based on your use case, you can also set the limit of the RST_STREAMS per minute using the new registry keys in this update.
| Registry key | Default value | Valid value range | Registry key function |
| Http2MaxClientResetsPerMinute | 400 | 0–65535 | Sets the allowed number of resets (RST_STREAMS) per minute for a connection. When you reach this limit, a GOAWAY message is sent to client for the connection. |
| Http2MaxClientResetsGoaway | 1 | 0-1 | Disables or enables the GOAWAY message to send when you reach the limit. If you set this to 0, the connection ends as soon as you reach the limit. |
To see the full list of Security Improvements in this Build, you can check this article from the Microsoft Blog.
This Update also includes Improvements from last month’s C Release, which includes all the Moment 4 Update Features.
For the full list of Improvements and Fixes, you can check this article from the Microsoft Blog.
Windows 11 Servicing Stack Update – 22621.2423
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 a more in-depth presentation of the New Update, you can watch the video below from the YouTube channel.
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