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No access to your tenant or devices. Every item links to its source. What this means

Some sources, documents or advisories need attention: 272/272 feeds/APIs · 469/469 docs · 8/9 advisories · checked 07:24 UTC Customize Public modeDiscuss ChangeIntel on Discord

Weekly briefing

Week 42 · 12 Oct – 18 Oct 2026 UTC · assess the changes, then plan the next dates.

All dated changes in this period

2977 source records · 556 groups

October 2026 Security Updates

MSRC release notes · Microsoft Security Update Guide

Assessment context

Monthly security release notes

Published vulnerability · 22 entries

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Published vulnerability · 10 entries

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Published vulnerability · 1029 entries

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Published vulnerability · 48 entries

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PSConfEU MiniCon 2026

Community post · PowerShell is fun (Harm Veenstra)

2 products

End of servicing

Dynamics 365 Business Central on-premises (Modern Policy), 2025 release wave 1, version 26.x; Windows 11 Home and Pro, Version 24H2

16 products

End of support

Access, Excel, Office, OneNote, Outlook, PowerPoint, Publisher, Skype for Business, Visio, Word LTSC 2021; Office LTSC 2021 for Mac; Project 2021 (LTSC); Windows 10 2016 LTSB; Windows 10 IoT Enterprise LTSB 2016; Windows Server 2012 R2, Extended Security Update Year 3; Windows Server 2012, Extended…

10 products

Retirement

Access, Excel, Office, OneNote, Outlook, PowerPoint, Project, Publisher, Visio, Word 2021

5 products

Moves to extended support

Office LTSC 2021 for Mac; Windows Server 2022; Windows Server 2022 Datacenter: Azure Edition; Windows Server 2022 Standard (MSL); Windows Server IoT 2022

3 retirement notices

Announced retirements

If your organization relies on Windows 10 Enterprise LTSB 2016, you know it’s nearing retired; Microsoft 365 Apps Support for the perpetual version of Publisher will end when Office LTSC 2021 reaches retired; Office LTSC 2021 products that reached retired

AD FS DKM container hardening

Recorded guidance date · Official documentation

Assessment context

The source states an exact date. Check its scope and required action in the cited guidance.

Service incident · 4 entries

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Service incident · 3 entries

Service incident · 6 entries

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Groups collect records about the same product or named security topic on one UTC date. Open a record for its source and history; grouping alone does not establish a shared cause or impact.

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 26 Oct 07:24 UTC · 272 of 272 readable · 270 fully read · documentation 469/469 current