October 17, 2022—KB5020435 (OS Builds 19042.2132, 19043.2132, and 19044.2132) Out-of-band
Highlights
We address an issue that might affect some types of Secure Sockets Layer (SSL) and Transport Layer Security (TLS) connections. These connections might have handshake failures. For developers, the affected connections are likely to receive one or more records followed by a partial record with a size of less than 5 bytes within a single input buffer. If the connection fails, your app will receive the error, “SEC_E_ILLEGAL_MESSAGE”.
Improvements
Note: To view the list of addressed issues, click or tap the OS name to expand the collapsible section.
Windows 10, version 21H2
Important: Use EKB KB5003791 to update to Windows 10, version 21H2.
This non-security update includes quality improvements. Key changes include:
This build includes all the improvements from the supported Windows 10, version 20H2 editions.
No additional issues were documented for this release.
Windows 10, version 21H1
Important: Use EKB KB5000736 to update to Windows 10, version 21H1.
This non-security update includes quality improvements. Key changes include:
This build includes all the improvements from the supported Windows 10, version 20H2 editions.
No additional issues were documented for this release.
Windows 10, version 20H2 editions: Windows 10 Enterprise Multi-Session, Windows 10 Enterprise and Education, Windows 10 IoT Enterprise
Important: Use EKB KB4562830 to update to the supported editions of Windows 10, version 20H2.
This non-security update includes quality improvements. Key changes include:
We address an issue that might affect some types of Secure Sockets Layer (SSL) and Transport Layer Security (TLS) connections. These connections might have handshake failures. For developers, the affected connections are likely to receive one or more records followed by a partial record with a size of less than 5 bytes within a single input buffer. If the connection fails, your app will receive the error, “SEC_E_ILLEGAL_MESSAGE”.
If you installed earlier updates, only the new updates contained in this package will be downloaded and installed on your device.
Windows 10 servicing stack update - 19042.1940, 19043.1940 and 19044.1940
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.
October 17, 2022—KB5020435 (OS Builds 19042.2132, 19043.2132, and 19044.2132) Out-of-band
Microsoft has released KB5020435 (OS Builds 19042.2132, 19043.2132, and 19044.2132) Out-of-band update for Windows 10 Enterprise Multi-Session, version 20H2 Windows 10 Enterprise and Education, version 20H2 Windows 10 IoT Enterprise, version 20H2 Windows 10 on Surface Hub Windows 10, version 21H1, all editions Windows 10, version 21H2, all editions.
