Collaboration
Communication
Compute
Data
Identity
Management
Network
Security
Workplace
Remote Support
MC1216259
(Updated) Introducing New Paid Extended Service Term (EST)
MC1216263
(Updated) Microsoft Teams: Browser selection for links in Teams Mobile
MC1216266
Microsoft Purview | eDiscovery Content Search case changes
MC1217141
Microsoft Purview eDiscovery | Direct export expiration change
MC1217152
Tenant setting update: Copilot capacity designation enabled by default
MC1217153
(Updated) Microsoft Purview compliance portal: Information Protection – Email attachment preview in Activity Explorer
MC1217155
(Updated) Data Security Posture Agent is now available in preview
MC1217348
Updates available for Microsoft 365 Apps for all channels
MC1217507
The January 2026 Windows security update is now available
MC1217584
Windows Deployment Services (WDS): Hands-free deployment hardening (Phase 1)
MC1217615
New Content Moderation Settings for AI Prompts in Microsoft Copilot Studio and Power Platform
MC1217638
(Updated) Improvements to meeting threads in Microsoft Teams channels
MC1217640
Microsoft Purview | Information Protection - Content Explorer: Unscanned data and Classification History summary metrics
MC1217641
Microsoft Edge: Cross-platform policies in the Edge management service
MC1217642
(Updated) Microsoft Viva: Viva Glint – New permissions
MC1217643
(Updated) Microsoft Teams: Choose your "Enter" key behavior in Teams Chat Settings
MC1217648
(Updated) Microsoft 365 Copilot | PowerPoint now supports enterprise image libraries via AEM (Adobe Experience Manager)
MC1217649
Endpoint DLP-sensitive data alerting retiring in Defender; use Purview DLP
MC1217650
Microsoft Defender for Cloud Apps – Improvements to Microsoft 365 connector configuration page
MC1217651
Power BI: End of support for on-prem SharePoint web part
MC1217711
MC1127230
(Updated) Microsoft 365 Copilot: Content Sources in Copilot Chat
MC1189911
(Updated) Microsoft 365 Copilot: New scheduled prompt features in Frontier tenants
MC1193414
(Updated) Microsoft 365 Copilot: Add web links as references in Copilot Notebooks
MC1194070
(Updated) Microsoft 365 Copilot: Declarative agents model upgrade to GPT-5.1
