Weekly briefing

Coming up8

1. 29Jun

   Message Center action dateDue 29 Jun 2026

   MC1226495: Microsoft Teams: Teams Live Events is retiringMicrosoft 365 Message Center Archive by Merill Fernando

   Same day: Message Center action date: MC1266901: Microsoft Teams: Retirement of legacy third‑party meeting and call control APIs

2. 30Jun

   Message Center action dateDue 30 Jun 2026

   MC1263280: Microsoft Entra: Security hardening to prevent user account takeover in Microsoft Entra Connect SyncMicrosoft 365 Message Center Archive by Merill Fernando

   Related evidence (4)

   • Time to move to Entra Cloud Sync

     Community source · Suggested by a shared curated topic and product; not a verified connection

   • Upcoming change - Enhanced admin authorization for Microsoft Entra Connect Sync configuration changes

     Public source · Suggested by a shared curated topic and product; not a verified connection

   • Upcoming Change - Migrate from Microsoft Entra Connect Sync to Microsoft Entra Cloud Sync

     Public source · Suggested by a shared curated topic and product; not a verified connection

   • MC1263280: Microsoft Entra: Security hardening to prevent user account takeover in Microsoft Entra Connect SyncMicrosoft 365 Message Center Archive by Merill Fernando

     Public source · Suggested by a shared curated topic and product; not a verified connection

3. 1Jul

   Message Center action dateDue 1 Jul 2026

   MC1048624: DNS Provisioning ChangeMicrosoft 365 Message Center Archive by Merill Fernando

   Same day: Message Center action date: MC1183015: Fix/Update Microsoft Sentinel Account Entity Naming to avoid inconsistent account identification in incidents and alerts

4. 4Jul

   CISA KEV deadlineDue 4 Jul 2026

   Microsoft SharePoint Server Deserialization of Untrusted Data Vulnerability

   CVE-2026-45659

5. 5Jul

   Message Center action dateDue 5 Jul 2026

   MC1272554: Top domain mail flow report in Exchange Online is retiringMicrosoft 365 Message Center Archive by Merill Fernando
6. 13Jul

   Message Center action dateDue 13 Jul 2026

   MC1230891: SharePoint Designer 2013 reaches end of support on July 14, 2026Microsoft 365 Message Center Archive by Merill Fernando
7. 14Jul

   Patch TuesdayScheduled for 14 Jul 2026

   Patch Tuesday, 14 July 2026

   The second Tuesday of the month, when Microsoft releases security updates for Windows, Office, and servers.

8. 14Jul

   End of supportDue 14 Jul 2026

   End of support: 11 products

   Dynamics GP, Project Server, SharePoint Server, SQL Server 2016; Dynamics GP 2016 R2; Infopath 2013; Project Server 2019; SharePoint Designer 2013; SharePoint Server 2019; SQL Server 2014, Extended Security Updates Year 2; Visual Studio 2022 , Version 17.12 (LTSC channel)

   Same day: End of support: SharePoint Server 2019 and SharePoint Server 2016