Windows

Windows security updates

Security-fix and disclosure events for Windows. Targets recurring searches like “Windows security updates” with timeline evidence — not a marketing changelog.

117 timeline events on record.

1. Oct 15, 2026

   Microsoft Office LTSC 2024 for 64-bit editions

   Confirmed security fix

   Open related record

2. Oct 15, 2026

   Microsoft Office LTSC 2024 for 32-bit editions

   Confirmed security fix

   Open related record

3. Oct 15, 2026

   Microsoft Office LTSC 2021 for 64-bit editions

   Confirmed security fix

   Open related record

4. Oct 15, 2026

   Microsoft Office LTSC 2021 for 32-bit editions

   Confirmed security fix

   Open related record

5. Oct 15, 2026

   Microsoft Office 365 for Mac

   Confirmed security fix

   Open related record

6. Oct 15, 2026

   Microsoft Office LTSC for Mac 2024

   Confirmed security fix

   Open related record

7. Oct 15, 2026

   Microsoft Office LTSC 2024 for 64-bit editions

   Confirmed security fix

   Open related record

8. Oct 15, 2026

   Microsoft Office LTSC 2024 for 32-bit editions

   Confirmed security fix

   Open related record

9. Oct 15, 2026

   Microsoft Office LTSC 2024 for 64-bit editions

   Confirmed security fix

   Open related record

10. Oct 15, 2026

    Microsoft Office 365 for Mac

    Confirmed security fix

    Open related record

11. Oct 15, 2026

    Microsoft Office LTSC 2024 for 64-bit editions

    Confirmed security fix

    Open related record

12. Oct 15, 2026

    Microsoft Office LTSC 2024 for 32-bit editions

    Confirmed security fix

    Open related record

13. Oct 15, 2026

    Microsoft Office 365 for Mac

    Confirmed security fix

    Open related record

14. Oct 15, 2026

    Microsoft Office LTSC for Mac 2021

    Confirmed security fix

    Open related record

15. Oct 15, 2026

    Microsoft Office LTSC 2024 for 32-bit editions

    Confirmed security fix

    Open related record

16. Oct 15, 2026

    Microsoft Office LTSC 2024 for 32-bit editions

    Confirmed security fix

    Open related record

17. Oct 15, 2026

    Microsoft Office LTSC 2021 for 32-bit editions

    Confirmed security fix

    Open related record

18. Oct 15, 2026

    Microsoft Office LTSC 2024 for 32-bit editions

    Confirmed security fix

    Open related record

19. Oct 15, 2026

    Microsoft Office 365 for Mac

    Confirmed security fix

    Open related record

20. Oct 15, 2026

    Microsoft Office LTSC 2024 for 32-bit editions

    Confirmed security fix

    Open related record

21. Oct 15, 2026

    Microsoft Office LTSC 2021 for 32-bit editions

    Confirmed security fix

    Open related record

22. Oct 15, 2026

    Microsoft Office LTSC 2024 for 32-bit editions

    Confirmed security fix

    Open related record

23. Oct 15, 2026

    Microsoft Office 365 for Mac

    Confirmed security fix

    Open related record

24. Oct 15, 2026

    Microsoft Office LTSC 2021 for 32-bit editions

    Confirmed security fix

    Open related record

25. Oct 15, 2026

    Microsoft Office LTSC 2024 for 32-bit editions

    Confirmed security fix

    Open related record

26. Oct 15, 2026

    Microsoft Office LTSC 2024 for 64-bit editions

    Confirmed security fix

    Open related record

27. Oct 15, 2026

    Microsoft SharePoint Server Subscription Edition

    Confirmed security fix

    Open related record

28. Oct 15, 2026

    Microsoft Office 365 for Mac

    Confirmed security fix

    Open related record

29. Oct 15, 2026

    Microsoft Office LTSC 2024 for 32-bit editions

    Confirmed security fix

    Open related record

30. Oct 15, 2026

    Microsoft Office LTSC for Mac 2021

    Confirmed security fix

    Open related record

31. Oct 13, 2026

    Microsoft Office LTSC 2024 for 64-bit editions

    Confirmed security fix

    Open related record

32. Oct 13, 2026

    Microsoft Office LTSC 2021 for 32-bit editions

    Confirmed security fix

    Open related record

33. Oct 13, 2026

    Microsoft Office LTSC 2024 for 32-bit editions

    Confirmed security fix

    Open related record

34. Oct 13, 2026

    Microsoft Office LTSC 2024 for 32-bit editions

    Confirmed security fix

    Open related record

35. Oct 13, 2026

    Microsoft SharePoint Server Subscription Edition

    Confirmed security fix

    Open related record

36. Oct 13, 2026

    Windows 11 Version 26H2 for ARM64-based Systems

    Confirmed security fix

    Open related record

37. Oct 13, 2026

    Windows 10 Version 22H2 for ARM64-based Systems

    Confirmed security fix

    Open related record

38. Oct 13, 2026

    Windows 10 Version 21H2 for 32-bit Systems

    Confirmed security fix

    Open related record

39. Oct 13, 2026

    Windows Server 2016 (Server Core installation)

    Confirmed security fix

    Open related record

40. Oct 13, 2026

    Windows 11 Version 26H2 for ARM64-based Systems

    Confirmed security fix

    Open related record