Weekly briefing

Week 2 · 5 Jan – 11 Jan 2026 UTC · assess the changes, then plan the next dates.

What to assess first

5 Jan – 11 Jan · dates to 10 Feb Check coverage

Coming up8

12Jan
Message Center action dateDue 12 Jan 2026
MC1164375: Retirement of "When Sending a Message" Group Policy in Classic Outlook for WindowsMicrosoft 365 Message Center Archive by Merill Fernando
13Jan
Patch TuesdayScheduled for 13 Jan 2026
Patch Tuesday, 13 January 2026
The second Tuesday of the month, when Microsoft releases security updates for Windows, Office, and servers.
13Jan
End of supportDue 13 Jan 2026
End of support: 3 products
Advanced Threat Analytics 1.X; Dynamics CRM 2016 (Dynamics 365); Visual Studio 2022 , Version 17.10 (LTSC channel)
Same day: Message Center action date: MC1186368: Microsoft SharePoint: Update to custom scripting governance in App Catalog site
28Jan
CISA KEV deadlineDue 28 Jan 2026
Microsoft Office PowerPoint Code Injection Vulnerability
CVE-2009-0556
30Jan
Message Center action dateDue 30 Jan 2026
MC1158908: (Update)Support for Events from email in Outlook is changing—Schema.org markup required for reliable calendar extractionMicrosoft 365 Message Center Archive by Merill Fernando
Same day: Message Center action date: MC1184649: Microsoft SharePoint: Retirement of IDCRL authentication protocol and enforcement of OpenID Connect and OAuth protocols
31Jan
Message Center action dateDue 31 Jan 2026
MC1146823: Microsoft Whiteboard: Azure to OneDrive migration progress updateMicrosoft 365 Message Center Archive by Merill Fernando
3Feb
CISA KEV deadlineDue 3 Feb 2026
Microsoft Windows Information Disclosure Vulnerability
CVE-2026-20805
8Feb
Message Center action dateDue 8 Feb 2026
MC1217152: Tenant setting update: Copilot capacity designation enabled by defaultMicrosoft 365 Message Center Archive by Merill Fernando

Changed4

7Jan
Security7 Jan 2026
Microsoft Office PowerPoint Code Injection Vulnerability
CVE-2009-0556
10Jan
Release10 Jan 2026
Az PowerShell module 15.2.0
Az PowerShell module releases
Related evidence (3)
- Az PowerShell module 15.1.0
  Public source · Suggested by a shared curated topic and product; not a verified connection
- Az PowerShell module 15.0.0
  Public source · Suggested by a shared curated topic and product; not a verified connection
- Az PowerShell module 14.6.0
  Public source · Suggested by a shared curated topic and product; not a verified connection
9Jan
Release9 Jan 2026
Release 2026-01-04
Azure Kubernetes Service release notes
9Jan
Revised9 Jan 2026
MC1131064: Microsoft Lens app will retireMicrosoft 365 Message Center Archive by Merill Fernando
Microsoft 365 apps

How this list is chosen

Changes from 5 Jan 2026 – 11 Jan 2026 UTC and dates due up to 10 Feb 2026. Dates are the source's own, or labelled as the day ChangeIntel observed a change; never inferred effective dates.

Ranked by kind: exploited vulnerabilities, then up to 7 dates, open known issues, and other notable changes, with at most one entry per feed. Service incidents are on the status board; security baseline downloads, first captures of a document, and metadata-only documentation checks are left out. This is a view of retained evidence, not a reconstruction of everything known at the time.

The briefing is selective. Browse every dated change, review upcoming dates or check the period's coverage.