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Some sources, documents or advisories need attention: 271/271 feeds/APIs · 464/464 docs · 8/9 advisories · checked 23:49 UTC Customize Public modeDiscuss ChangeIntel on Discord

Weekly briefing

Week 40 · 28 Sep – 4 Oct 2026 UTC · assess the changes, then plan the next dates.

What to assess first

28 Sep – 4 Oct · dates to 3 Nov Check coverage

Act on4

  1. Security1 Oct 2026

    Fortinet · 2 security records

    CVE-2026-104286

    Related evidence (1)

  2. Exploited30 Sep 2026

    Cisco Catalyst SD-WAN Manager Hex Encoding Vulnerability

    CVE-2026-76504

  3. Exploited29 Sep 2026

    Apple Multiple Products Out-of-Bounds Write Vulnerability

    CVE-2026-86950

  4. Known issue2 Oct 2026

    Availability (free/busy) fails for delegated mailboxes in Exchange hybrid deployments that use Graph API only

    Exchange Server update known issues

    Related evidence (1)

Coming up4

  1. Message Center action dateDue 5 Oct 2026

    MC1449174: Microsoft Teams: Microsoft Teams live chat retirement

  2. Patch TuesdayScheduled for 13 Oct 2026

    Patch Tuesday, 13 October 2026

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

  3. End of supportDue 13 Oct 2026

    End of support: 16 products

    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…

    Same day: Retirement: 10 products; End of servicing: 2 products; End of support: Office LTSC 2021; Recorded guidance date: AD FS DKM container hardening; Message Center action date: MC1472429: Support for Office LTSC 2021, and additional apps will end on October 13, 2026

  4. Announced retirementDue 14 Oct 2026

    Retirement Update: SAP container images removed October 14, 2026

    Same day: Recorded guidance date: NTLMv1 SSO enforcement phases

How this list is chosen

Changes from 28 Sep 2026 – 4 Oct 2026 UTC and dates due up to 3 Nov 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 3 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.

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 25 Oct 23:49 UTC · 271 of 271 readable · 269 fully read · documentation 464/464 current

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