The Update BureauKB5065749: Cumulative update for .NET Framework, version 4.8, on Windows 10 1607 and Windows Server 2016, September 2025. ASP.NET error logging and WPF Chinese certificate updated
In short
Addresses ASP.NET error events that might not appear properly in the Windows Event log and updates WPF’s GB18030 certificate for Chinese-language changes.
Does it affect you? Applies to: Devices running Windows 10, version 1607, or Windows Server 2016 with .NET Framework 4.8 installed.
What changes
Fix 1 change
ASP.NET
Verified in package
-
Some ASP.NET error events that failed to appear properly in the Windows Event log are addressed.1
Addresses an issue where some ASP.NET error events fail to log properly in the Windows Event log.
Improvement 1 change
WPF
Verified in package
-
WPF receives an update for the GB18030 certificate related to Chinese-language changes.2
Addresses an update for the GB18030 certificate for Chinese language changes.
Technical details
Data sheet · Security · Downloads · Components Click to collapse or expand
Data sheet
- Released
- 2025-09-09
- Classification
- Updates
- Type
- Cumulative update
- Restart
- Required
- Replaces
- KB5062064
- Replaced by
- KB5066136
| Version | File version | Channel |
|---|---|---|
| 4.8 | 4.8.4797.0 | General availability |
Security
No vulnerabilities are listed for this update.
Downloads (Microsoft Update Catalog)
x64
Windows 10 Enterprise LTSB 2016 / Windows Server 2016
57.4 MB
x86
Windows 10 Enterprise LTSB 2016
33.5 MB
Updated components
50 files changed since the previous update for the same versions.
| Top changed components | Files |
|---|---|
| WPF | 22 |
| ASP.NET | 10 |
Verified in package: changed files confirm ASP.NET, WPF.
Sources
Updated
Cited passages from Microsoft's official notes (2)
-
1.
Addressed an issue in ASP.NET where some error events fail to log properly in the Windows Event log.
support.microsoft.com -
2.
Addressed an update for GB18030 certificate for Chinese language changes.
support.microsoft.com
Checked automatically: 8 of 8 checks passed, 2 quoted passages · compared with Microsoft's page on Oct 20, 2026
- Quotes found in the official pages: passed
- Numbers found in the sources: passed
- Vulnerabilities from the dossier only: passed
- Links to allowed domains only: passed
- Every official change covered: passed
- Readable plain text: passed
- Changes confirmed by the file list: passed
- Sources agree: passed
A second AI read the text against the sources: correctness 5/5, clarity 4/5, completeness 5/5. How we work
Published by The Update Bureau. Written with AI from Microsoft's own documents, checked by rules and a second AI. How we work · Report a mistake