Overview
The KB5037926 update, released on May 14, 2024, is a cumulative update for the .NET Framework 4.8 specifically targeting Windows 10 version 1607 and Windows Server 2016. This update is part of Microsoft's ongoing efforts to enhance the security and reliability of the .NET Framework. While it does not introduce new security improvements, it consolidates all previously released security updates, ensuring that systems are fortified against known vulnerabilities. The update is recommended as part of regular maintenance routines to maintain optimal system performance and security.
General Purpose
The primary purpose of KB5037926 is to provide cumulative reliability improvements for the .NET Framework 4.8. It addresses several issues that could lead to application crashes and performance regressions. Notably, it resolves a problem where multiple threads querying the same managed type could cause crashes, and it fixes a significant response time regression on 32-bit platforms. Additionally, it addresses issues related to wildcard format changes in IIS 10 and crashes in applications when calling specific methods in the Windows Presentation Foundation (WPF). Overall, this update aims to enhance the stability and performance of applications relying on the .NET Framework.
General Sentiment
The general sentiment surrounding KB5037926 appears to be mixed. While many users appreciate the cumulative reliability improvements and the resolution of specific issues, there are concerns regarding runtime exceptions reported in SQL CLR hosted scenarios. These exceptions, linked to recent changes in cryptographic implementations, have led to some frustration among users. However, Microsoft has provided workarounds, which may alleviate some of the issues. Overall, while the update is seen as beneficial for system stability, the known issues may cause hesitation among some users considering installation.
Known Issues
- Runtime exceptions in SQL CLR hosted scenarios, specifically related to SHA256Managed, SHA384Managed, and SHA512Managed types.
- Error message: System.Security.HostProtectionException indicating forbidden operations by the CLR host.
- Workaround options include marking assemblies as UNSAFE or using SQL's built-in HASHBYTES function instead of .NET's SHA-2 APIs.
- Microsoft has addressed these issues in a subsequent update (KB5043803).
Disclaimer: We take measures to ensure that AI-generated content is of the highest possible quality, but we cannot guarantee its accuracy and recommend that users do their own independent research. Generated on 2024-12-22 12:25 AM