KB5129242: 2026-09 OOB update of 2026-09-14
Microsoft released KB5129242 (2026-09 OOB) on 14 September 2026 for Windows 11, version 23H2. It is an out-of-band update.
1 version
Facts
- Microsoft id
KB5129242- Products
- Windows 11
- Update type
- 2026-09 OOB
- Released
- 14 September 2026
- Out-of-band
- Yes
- Versions
- Windows 11, version 23H2
- Builds
- 22631.7584 (Windows 11, version 23H2)
- First captured by us
- (from our first import of this list)
- Microsoft last modified
- –
- Source
- Windows updates · open the original at Microsoft
Known issues
Resolved by this update
Microsoft says
Microsoft published no description with this item.
What Microsoft changed
One version so far. If Microsoft edits it, each change shows here with what was removed and added.
First version we captured ·
The text as we first saw it
Seen by us · Microsoft's page
Related changes
Mentioning the same Microsoft ids
Last updated