Microsoft is putting an AI agent directly into the hardest part of switching CRM platforms: migration. Dynamics 365 Activate is entering public preview with Salesforce as its first source system, analyzing environments and automating parts of the move after processing more than six billion records in early customer projects.

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Microsoft is moving Copilot directly into Outlook’s email composer, with an inline chat interface planned for Outlook on the web in October 2026. The feature will let users draft and refine messages without opening the separate Copilot sidebar, while newer Outlook builds are already surfacing an Alt+I prompt for AI-assisted composition.

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Microsoft is preparing to raise the 1.5 TB ceiling on Exchange Online auto-expanding archive mailboxes, with rollout planned from October 2026. The change is currently limited to customers with eligible Office 365 E5 or Microsoft 365 E5 licenses, and Microsoft has not yet disclosed the new maximum capacity or whether extra storage will incur additional charges.

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Microsoft 365 is redirecting users from `m365.cloud.microsoft` to `copilot.cloud.microsoft`, and organizations that have blocked the new address will be redirected later in October anyway. The change follows Microsoft’s move to shift Teams web to the cloud.microsoft domain, but this rollout gives administrators a more immediate network-access deadline.

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Microsoft has announced Viva Glint export APIs that let you pull employee survey response data out of Viva Glint through Microsoft Graph instead of downloading reports manually. Viva Glint is Microsoft's employee listening platform where organizations run engagement surveys and collect feedback. The APIs use OAuth 2.0 application permissions and require both Microsoft Entra app registration and configuration inside Glint. They are available only in a limited private preview as of September 2026. This article covers what the APIs do, what you need to set them up, and what limitations apply.

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Visual Studio Code 1.138 Insiders adds GPU-accelerated terminal rendering, faster startup, and improvements to remote development after 1.137 Insiders reached Microsoft’s Linux PPA. The preview also introduces conflict-free Settings Sync merging and experimental inline code actions, giving administrators and developers several changes to test before the next stable release.

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Microsoft Graph still cannot access Microsoft 365 Group mailboxes as ordinary Exchange mailboxes, leaving applications unable to enumerate folders, retrieve messages from subfolders, or create direct links to individual group posts. That limitation matters most for backup and compliance tools: conversations moved out of a group’s main Inbox can become invisible to the public API.

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Microsoft’s September 2026 Exchange Server security updates fix two remote-code-execution flaws and a high-impact elevation-of-privilege bug that could let a low-privileged user impersonate others and access mailboxes. The release follows last month’s Exchange update that fixed a Pwn2Own mailbox-takeover bug and disabled OWA Light, and also addresses a crafted calendar-invite spoofing vulnerability.

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Microsoft Teams is preparing a meeting-policy setting that lets administrators decide whether profane language remains masked in live transcriptions and saved transcript files. Filtering will stay enabled by default, with rollout planned across desktop, web, Android, iOS, and Mac beginning in October 2026.

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Switzerland has begun a CHF 9 million pilot to replace Microsoft 365 with the open-source openDesk workplace suite on 3,000 federal workstations. The trial covers about 7% of the administration’s computers, will run alongside Microsoft 365, and is intended to support a wider migration across roughly 54,000 systems by the end of 2027.

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0patch will provide unofficial security support for Microsoft Office 2021 after Microsoft ends servicing on October 13, 2026. The alternative is not free: subscriptions start at €34.95 plus tax per computer annually, with coverage promised for at least three years.

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Microsoft will begin throttling and then rejecting email from Exchange Server 2016 and 2019 systems that have not reached the October 2025 public-update baseline. The enforcement starts in the second week of September 2026 and targets hybrid servers delivering mail to Exchange Online through an `OnPremises` inbound connector.

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Microsoft will retire Word’s Similarity Checker on October 3, 2026, removing the plagiarism and text-matching tool from the Microsoft Editor experience. Organizations that use it to review documents will need an alternative, because Microsoft says Microsoft 365 Copilot is not a formal replacement for similarity or originality validation.

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Google is expanding Gemini Daily Brief to more free U.S. users, bringing its personalized morning briefing beyond paid subscriptions. The feature scans Gmail, Calendar, and Gemini conversations to identify what needs attention, but access requires users to enable Memory and connect personal Google data.

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Microsoft is investigating two separate Microsoft Teams desktop problems: some Windows users cannot launch the client or face startup delays of up to two minutes, while some Mac users cannot join calls or meetings. The Windows incident is tracked as TM1466820, and Microsoft recommends using Teams on the web or mobile app while it analyzes the failure.

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Microsoft Teams is preparing a QR-code phishing defense that will obscure QR-code images sent by people outside an organization. Users must deliberately reveal the image before viewing or scanning it, with rollout planned from October 2026 for Android, iOS, Windows desktop, and Mac.

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A new Exchange Online incident is delaying mail sent to and received from external domains, with users seeing intermittent “Server busy” errors across multiple mailboxes. The disruption follows a broader Microsoft 365 outage that affected Outlook, Teams, the Microsoft Store, and Azure through an Azure network edge failure, but Microsoft has not yet linked the new Exchange problem to that cause.

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Microsoft’s Power Platform Community Conference 2026 will focus on turning AI experiments into governed, secure business processes that can operate in production. The October 27–29 event at the MGM Grand in Las Vegas will offer more than 200 sessions and 24 hands-on workshops covering Copilot, Work IQ, AI agents, apps, workflows, data, security, and cost management.

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Amazon Quick now connects directly to Microsoft Outlook, allowing users to summarize threads, draft contextual replies, manage messages, and schedule meetings without leaving the mailbox. The extension can also trigger broader workflows, but its ability to take actions makes permissions, data handling, and response verification important considerations for IT teams.

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