Microsoft 365: Upcoming Changes and End-of-Support Milestones

Last updated: October 2024

Join us in this blog as we explore the dynamic world of Microsoft 365. 🌟 We’ll shed light on the features and products that are undergoing transformations or bidding farewell. Whether you’re a system administrator 🧑‍💻 managing the Microsoft 365 environment or an avid user 🙋‍♂️ staying ahead of the curve, this blog will provide invaluable insights and actionable recommendations.

🚀Discover the key changes, deprecations, and end-of-support scenarios that require your attention. From deprecated features to configuration modifications and essential upgrade plans, we’ve got you covered! Make informed decisions and ensure a smooth transition.⚡️

Note: Interested in exploring past month’s features and deprecations? Look no further! You can find a comprehensive history of all the changes in our GitHub repository.

Here is a list of changes categorized by month and year.

• Oct 2024(New Features: 11, Retirements: 4, Enhancements: 7, Existing Functionality Changes: 5, Action Needed: 2)
• Nov 2024 (Attention needed:10)
• Dec 2024 (Attention needed: 8)
• 2025 (Attention Needed: 20)
• 2026 (Attention Needed: 9)

We’ve crafted a visually appealing Microsoft 365 end-of-support timeline infographic to help you effortlessly stay informed about the end-of-support schedule! And it’s also available in a printer-friendly format to keep handy on your desk.

New Features: 11 | Retirements: 4 | Enhancements: 7 | Existing Functionality Changes: 5 | Action Needed: 2

Soon, SharePoint admins will be able to compare site settings and content across all SharePoint sites using AI. This feature will generate report with a percentage that helps admins ensure consistent policies and settings are applied to all sites.

Ref: https://www.microsoft.com/en-us/microsoft-365/roadmap?filters=&searchterms=415167

Microsoft will introduce sensitivity label support for town halls and webinars in October. Event organizers can view sensitivity labels when creating events, and they’ll receive notifications if any event details don’t comply with the selected label.

Ref: https://www.microsoft.com/en-us/microsoft-365/roadmap?filters=&searchterms=409226

A new feature, “Microsoft 365 Copilot License Optimizer,” will be available in the Microsoft 365 admin center by October 2024. This tool helps admins streamline license assignment and optimize Copilot license usage.

Ref: https://www.microsoft.com/en-us/microsoft-365/roadmap?filters=&searchterms=417484

Admins will be able to manage site ownership across SharePoint using the “Site ownership policy.” This policy helps identify orphaned sites and notifies designated users to take ownership. It can also automate actions for sites that remain ownerless for more than three months.

Ref: https://www.microsoft.com/en-us/microsoft-365/roadmap?filters=&searchterms=396172

From October 2024, admins will be able to connect their ChatGPT Enterprise workspaces to Microsoft Purview. This integration allows them to discover, collect, and store user interactions with ChatGPT and include these interactions within the scope of Purview’s compliance capabilities and policies.

Ref: https://www.microsoft.com/en-us/microsoft-365/roadmap?filters=&searchterms=401125

Starting in early October, Microsoft 365 E5 and Office 365 E5 users will be able to recall encrypted emails directly from their Sent folder, providing an added layer of security through integration with Message Recall.

Ref: https://admin.microsoft.com/Adminportal/Home#/MessageCenter/:/messages/MC882266

Beginning in early October, Microsoft Teams will allow admins to create location-based frontline teams with dynamic membership through rules, while allowing team owners to make manual changes as needed.

Ref: https://admin.microsoft.com/Adminportal/Home#/MessageCenter/:/messages/MC883199

Currently, only presenters can admit participants or decide who can present during Teams meetings. Starting in early October, Microsoft will introduce a new option allowing meeting organizers to control who can admit people from the lobby. The “Who can admit from the lobby” setting will provide two choices: “Organizer, co-organizers, and presenters” or “Organizer and co-organizers.”

Ref: https://admin.microsoft.com/Adminportal/Home#/MessageCenter/:/messages/MC795085

Starting in October, the Voice Isolation feature in Microsoft Teams will be available on macOS desktops. This feature improves call clarity by filtering out unwanted background noise and human sounds. The feature is turned on by default. To ensure users can take advantage of this feature, admins must activate the enrollUserOverride policy to allow users to enroll their voice profiles.

Ref: https://support.microsoft.com/en-us/office/voice-isolation-in-microsoft-teams-calls-and-meetings-a9756ea9-4cec-44c4-aefb-6f5d17c89427

Starting in October 2024, Microsoft Teams will introduce the new Workflow Builder feature for GCC customers. This tool helps users describe their automation needs and match them with appropriate workflows. Initially accessible through the ‘Workflows’ app in the Teams chat and channel overflow menus, future updates will extend its availability to additional entry points.

Ref: https://admin.microsoft.com/Adminportal/Home#/MessageCenter/:/messages/MC718250

A new cmdlet, Export-ContentExplorerData, will be generally available for exporting all rows of data from the Content Explorer.

Note: The cmdlet is available in Security & Compliance PowerShell.

Ref: https://admin.microsoft.com/Adminportal/Home?ref=MessageCenter/:/messages/MC698421

The end of support for the classic Teams client in VDI starts October 1, 2024, and the end of availability for the classic Teams client in VDI starts July 1, 2025.

Ref: https://learn.microsoft.com/en-us/MicrosoftTeams/new-teams-vdi-requirements-deploy

Azure MFA Server deployments will no longer service MFA requests from Oct 1, 2024, which could cause authentications to fail for your organization.

Solution: Organizations should migrate their users’ authentication data to the cloud-based Azure MFA service.

Ref: https://techcommunity.microsoft.com/t5/microsoft-entra-azure-ad-blog/microsoft-entra-change-announcements-september-2022-train/ba-p/2967454

The PowerPoint QuickStarter feature will be retired starting October 8, 2024. Office versions 2409 for Windows and 2410 for Mac users will no longer use the QuickStarter feature in PowerPoint.

Ref: https://support.microsoft.com/en-us/office/research-a-topic-with-powerpoint-quickstarter-4784f273-0b2c-456c-9c89-24e5b977c224

Beginning on October 23, 2024, the classic Teams desktop app will no longer be available for Windows 7, 8, 8.1, and Mac OS Sierra (10.12).

Starting July 1, 2025, classic Teams desktop app will reach end of availability for all users. Also, the “New” label will be removed from the new Teams app by mid-July 2024.

Solution: Users need to update their OS, or they can use the new Teams web app (on supported browser) as an alternative.

Ref: https://admin.microsoft.com/Adminportal/Home?ref=MessageCenter/:/messages/MC783985

Admins will soon be able to control report/junk actions in Outlook for Mac through the User Reported settings in the Microsoft Defender portal. They can determine if these options are visible in Outlook and customize the prompt text when users’ report phishing or junk.

Ref: https://learn.microsoft.com/en-us/defender-office-365/submissions-user-reported-messages-custom-mailbox

Microsoft OWA and the new Outlook for Windows will soon allow users to record and insert Stream videos directly into their emails.

Ref: https://www.microsoft.com/en-us/microsoft-365/roadmap?filters=&searchterms=185369

Microsoft’s SharePoint eSignature service, initially launched in the US in late November 2023, is now expanding its availability to include users in selected European countries. Starting October 2024, users of selected European countries can use SharePoint online to request eSignatures on PDF documents.

Ref: https://admin.microsoft.com/Adminportal/Home#/MessageCenter/:/messages/MC80050

Soon, the Microsoft 365 Mesh app on PC will support guest access for events. Guest users with a Mesh license will be able to collaborate and enjoy the same features as internal users, enabling wider collaboration and networking during Mesh events.

Ref: https://admin.microsoft.com/Adminportal/Home#/MessageCenter/:/messages/MC888047

Microsoft is updating the web version of Planner with a unified experience, combining the simplicity of To Do, collaboration of Planner, power of Project, and Copilot’s intelligence. This update ensures consistency between the web version and Planner in Teams, allowing users to switch seamlessly between both.

Ref: https://adoption.microsoft.com/en-us/microsoft-planner/

To improve security and performance, Microsoft will begin enabling IPv6 for accepted domains using Exchange Online for inbound mail. To benefit from IPv6, admins must ensure that their network allow-list includes Exchange Online IPv6 endpoints.

Ref: https://admin.microsoft.com/Adminportal/Home#/MessageCenter/:/messages/MC835648

The new Microsoft Purview compliance portal enhances communication compliance by integrating Insider Risk Management (IRM) alerts into triage flows. This provides investigators with enriched insights by linking communication alerts with a user’s risk profile and activity history, enabling more informed and efficient decision-making.

Ref: https://admin.microsoft.com/Adminportal/Home#/MessageCenter/:/messages/MC878431

After more than five years, Microsoft has introduced a new pricing model for Dynamics 365 products. Effective October 2024, new customers will be subject to this updated pricing structure.

Ref: https://www.microsoft.com/en-us/dynamics-365/blog/no-audience/2024/04/12/new-pricing-for-microsoft-dynamics-365-effective-october-2024/

Microsoft is restarting the rollout of App-centric management in the Teams admin center, which replaces the Teams apps permissions policies. Phase 2 of this rollout will begin mid-October 2024, impacting tenants with both global and custom app permissions policies.

Ref: https://admin.microsoft.com/Adminportal/Home#/MessageCenter/:/messages/MC688930

Currently, admins when trying to enable email notifications, policy tips also need to be enabled. However, the user email notifications and policy tips options will be decoupled, and admins can configure them independently. By late October 2024, it will be out for public preview.

Ref: https://admin.microsoft.com/Adminportal/Home#/MessageCenter/:/messages/MC791114

To improve performance and reliability, Microsoft will soon move all file and conversation settings from the classic Yammer admin center to the Viva Engage admin center. This transition will be complete by late October 2024.

Ref: https://admin.microsoft.com/Adminportal/Home#/MessageCenter/:/messages/MC888046

Microsoft is enhancing the usability of Outlook on the web by moving various user settings into a new “Account” settings category. This update will be generally available by late Oct 2024 and will include settings like Automatic replies, Email signatures, Categories, Mobile devices, and Storage.

Ref: https://admin.microsoft.com/Adminportal/Home#/MessageCenter/:/messages/MC867665

Beginning in October 2024, Microsoft will offer self-service purchasing for Copilot, available to users with Microsoft 365 Business Basic, Standard, and Premium licenses.

Solution: Disable self-service purchasing for Copilot to avoid untracked expenses, potential licensing compliance issues, and reduced oversight on data access and usage.

Ref: https://learn.microsoft.com/en-us/partner-center/announcements/2024-september#self-service-purchase-feature-to-come-for-copilot-customers

Microsoft will require admins to use multi-factor authentication when signing into the Microsoft Azure portal, Microsoft Entra admin center, and Microsoft Intune admin center from Oct 15, 2024.

Solution: Admins need to enable MFA in the tenant before October 15, 2024. If you need some more time to set up MFA, you can apply to postpone the enforcement date.

Ref: https://admin.microsoft.com/Adminportal/Home#/MessageCenter/:/messages/MC862873

Starting in November 2024, the new Outlook for Windows will support add-ins and apps across all accounts, expanding beyond primary account access only.

Ref: https://www.microsoft.com/en-us/microsoft-365/roadmap?filters=&searchterms=412936

Admins will be able to use the Microsoft Graph API to create customized Microsoft 365 Copilot usage reports, allowing for more detailed analytics.

Ref: https://www.microsoft.com/en-us/microsoft-365/roadmap?filters=&searchterms=396562

To help you retrieve relevant logs in the Microsoft Purview audit search, Microsoft will include four additional filters in public preview. They are,

1. Id – Unique identifier of an audit record.
2. UserType – The type of user that performed the operation.
3. UserKey-Azure Active Directory Object ID in GUID format.
4. ClientIP – The IP address of the device that was used when the activity was logged.

Ref: https://admin.microsoft.com/Adminportal/Home#/MessageCenter/:/messages/MC789312

Admins will soon be able to block malicious users from contacting the organization through 1:1 or group chats in Microsoft Teams. Using the new “Block” feature, admins can create a block list, preventing these users from reaching out again.

Ref: https://admin.microsoft.com/Adminportal/Home#/MessageCenter/:/messages/MC888879

A modernized user experience (UX) for Microsoft Purview eDiscovery will be generally available. This new UX unifies Content Search, eDiscovery Standard, and eDiscovery Premium, improving overall eDiscovery performance.

Ref: https://techcommunity.microsoft.com/t5/security-compliance-and-identity/ediscovery-launches-a-modern-intuitive-user-experience/ba-p/4215184

The Microsoft Purview Data Loss Prevention has planned to introduce the following enhancements by early-November 2024.

• The number of supported file types will increase from 40 to 100.

• Identifies sensitive content in metadata and protected files (pfiles)

• DLP will detect sensitive information in PDF form fields and files embedded within Office files (e.g., a .txt file inside a .pptx file)

Ref: https://admin.microsoft.com/Adminportal/Home#/MessageCenter/:/messages/MC791881

Microsoft is retiring the use of Azure ACS as auth platform for SharePoint Online. Starting November 1st, 2024, new tenants will not be able use Azure ACS. For existing tenants that currently rely on Azure ACS to provide custom-developed or third-party applications access to SharePoint Online, this functionality will cease to work after April 2, 2026.

Solution: Admins can utilize the Microsoft 365 Assessment tool to scan the tenants for any usage of Azure Access Control Service (ACS) and migrating from Azure ACS to Microsoft Entra ID.

Ref: https://learn.microsoft.com/en-us/sharepoint/dev/sp-add-ins/retirement-announcement-for-azure-acs

SharePoint Add-Ins will stop working for new tenants as of November 1, 2024, and they will be fully retired as of April 2nd, 2026.

Solution: Admins can run the Microsoft 365 Assessment tool to scan their tenants for SharePoint Add-In usage.

Ref: https://admin.microsoft.com/Adminportal/Home?ref=MessageCenter/:/messages/MC693865

Starting November 5, 2024, existing instances of the Feed for Viva Connections web parts and Video News Link will stop displaying content.

Ref: https://techcommunity.microsoft.com/t5/viva-connections-blog/viva-connections-feed-web-part-and-video-news-link-retirement/ba-p/4210720

Dynamic watermarking, a new sensitivity label setting is used to add watermarks onto content in files created in Microsoft Word, Excel, and PowerPoint. This feature will be generally available to the current channel by mid-November 2024.

Ref: https://techcommunity.microsoft.com/t5/security-compliance-and-identity/preview-dynamic-watermarking-for-sensitivity-labels-in-word/ba-p/4185842

Any changes to policy configurations—whether creating, updating, or deleting—will be captured in Purview Audit, enabling admins to search and review the change history. These logs will be accessible to users with Purview Audit Standard permissions.

Ref: https://admin.microsoft.com/Adminportal/Home#/MessageCenter/:/messages/MC789309

Admins will be able to use the Email Response Actions API in Microsoft Graph to perform actions such as soft delete, hard delete, moving emails to junk, etc., in Microsoft Defender.

Ref: https://www.microsoft.com/en-us/microsoft-365/roadmap?filters=&searchterms=93434

Microsoft retiring Delve on December 16th, 2024. Many Delve features are now available and improved in other Microsoft 365 experiences.

Solution: Key alternatives include:

• Discover documents: Use Office.com, Office apps, and Profile Cards.
• View profile data: Utilize Profile Cards, people search on Office.com, and SharePoint search.
• Edit profile: A new edit profile experience will be released in H2 2024 and can also be edited in SharePoint.
• Organizational view: Available in the Profile Card and Org Explorer.
• Favorites: Use favorites on Office.com and OneDrive for similar functionality.
• Boards: Will not be replaced.

Ref: https://admin.microsoft.com/Adminportal/Home?ref=MessageCenter/:/messages/MC698136

Microsoft Purview’s Data Lifecycle Management integrates with Adaptive Protection to automatically retain items deleted by users identified as having an elevated risk level. This integration capability will be generally available by mid-December 2024

Ref: https://admin.microsoft.com/Adminportal/Home#/MessageCenter/:/messages/MC791110

Google has decided to phase out Android device administrator management. In response, Microsoft Intune will stop supporting this management type on devices using Google Mobile Services (GMS) starting December 31, 2024.

Solution: Stop enrolling devices into Android device administrator and migrate impacted devices to other management methods.

Ref: https://admin.microsoft.com/Adminportal/Home#/MessageCenter/:/messages/MC674247

Connector owners must update their URLs by this date to continue using connectors beyond December 31, 2024, or the connectors will stop working.

Ref: https://admin.microsoft.com/Adminportal/Home#/MessageCenter/:/messages/MC808160

The PowerPoint QuickStarter feature will be completely retired by December 31, 2024, for Office versions 2409 for Windows and 2410 for Mac.

Ref: https://admin.microsoft.com/Adminportal/Home#/MessageCenter/:/messages/MC884762

At the end of 2024, Microsoft replacing the Mail and Calendar apps in Windows with the new Outlook for Windows.

Solution: Start trying and testing the new Outlook for Windows.

Ref: https://admin.microsoft.com/Adminportal/Home?ref=MessageCenter/:/messages/MC590123

Starting January 2025, you’ll be able to add shared mailboxes as accounts in the New Outlook for Windows. With the necessary permissions, you can access these shared mailboxes by providing the user’s credentials.

Ref: https://www.microsoft.com/en-us/microsoft-365/roadmap?filters=&searchterms=375635

Microsoft plans to shorten the meeting URLs for easy sharing across all Teams platforms. Starting early Jan, the URL will contain only the meeting ID and other parameters such as tenant ID, Organizer ID, Conversation ID, and message ID will not be there. This will be the new

URL format: https://teams.microsoft.com/meet/<meeting_id>?p=<HashedPasscode>

Ref: https://admin.microsoft.com/Adminportal/Home#/MessageCenter/:/messages/MC772556

Microsoft will introduce a new DLP action that triggers custom Power Automate workflows when a DLP policy is violated.

Ref: https://www.microsoft.com/en-us/microsoft-365/roadmap?filters=&searchterms=380721

Exchange Online will begin enforcing an external recipient rate (ERR) limit of 2000 recipients in 24 hours. This restriction will be applicable to the cloud-hosted mailboxes of all newly created tenants.

For existing tenants, this limit will be enforced in the second half of 2025.

Note: Exchange Online enforces a Recipient Rate limit of 10000 recipients for cloud-hosted mailboxes. The 2000 ERR limit will become a sublimit within this 10000 Recipient Rate limit.

Ref: https://techcommunity.microsoft.com/t5/exchange-team-blog/exchange-online-to-introduce-external-recipient-rate-limit/ba-p/4114733

Microsoft Viva Engage will retire private unlisted groups in external networks on January 13, 2025. After this date, users will no longer be able to create, export, access, or participate in unlisted groups within external networks. So, admins are advised to convert them to listed ones to secure their data.

Ref: https://admin.microsoft.com/Adminportal/Home#/MessageCenter/:/messages/MC867664

As part of enforcing MFA for all Azure users, MFA enforcement for Azure Command Line Interface (CLI), Azure PowerShell, and Infrastructure as Code (IaC) tools will gradually be introduced to all tenants starting in early 2025.

Ref: https://techcommunity.microsoft.com/t5/core-infrastructure-and-security/update-on-mfa-requirements-for-azure-sign-in/ba-p/4177584

Starting in late January 2025, any OneDrive accounts left unlicensed for more than 90 days will be automatically archived, hitting you with extra costs to regain access in Microsoft Archive. Yes! You will be charged $0.05 per GB per month to store unlicensed OneDrive content and $0.60 per GB to reactivate the account in the Microsoft 365 archive.

Ref: https://learn.microsoft.com/en-us/sharepoint/unlicensed-onedrive-accounts

Priority user groups in Insider Risk Management are designed to prioritize examining users who handle sensitive information or have a history of risk. Microsoft will soon enhance these groups by enabling admins to bulk upload users via CSV when creating Priority user groups.

Ref: https://www.microsoft.com/en-us/microsoft-365/roadmap?filters=&searchterms=409540

Microsoft is going to remove ApplicationImpersonation Role Based Access Control (RBAC) role and its feature set from Exchange Online.

Ref: https://techcommunity.microsoft.com/t5/exchange-team-blog/retirement-of-rbac-application-impersonation-in-exchange-online/ba-p/4062671

Soft Delete preserves deleted key vaults and secrets for up to 90 days, enabling customers to restore them through a self-serve process.

Ref: https://learn.microsoft.com/en-us/azure/key-vault/general/soft-delete-change

Viva Topics will be discontinued on February 22, 2025, and Microsoft will no longer pursue new feature enhancements for the platform.

Existing Topic pages will transition to standard SharePoint pages. Users can edit and publish updates as other SharePoint pages. AI-generated Topic pages will no longer be accessible.

Ref: https://learn.microsoft.com/en-us/microsoft-365/topics/changes-coming-to-topics

Microsoft has officially deprecated the Azure AD and MSOnline PowerShell modules Mar’24. However, they will remain functional until March 30, 2025, with support limited to critical security fixes.

Note: Only MSOnline versions 1.1.166.0 (2017) and later are guaranteed to function as expected.

Ref: https://techcommunity.microsoft.com/t5/microsoft-entra-blog/important-update-deprecation-of-azure-ad-powershell-and-msonline/ba-p/4094536

Microsoft plans to introduce a new feature in Insider Risk Management, which will be widely available from April 2025. This feature aims to detect potentially risky use of AI. It includes monitoring activities involving sensitive information in prompts generated by AI assistants, covering both copilots and third-party AI applications.

Ref: https://www.microsoft.com/en-in/microsoft-365/roadmap?filters=In%20development&searchterms=394281

As part of the SharePoint Framework domain isolated web parts retirement, this feature will be turned off for newly created tenants starting from Apr 02, 2025.

Note: From Apr 02, 2026, existing tenants will no longer be able to use this feature.

Ref:: https://devblogs.microsoft.com/microsoft365dev/retiring-sharepoint-framework-domain-isolated-web-parts-for-sharepoint-online/

In the second half of 2025, Exchange Online will start enforcing an external recipient rate (ERR) limit of 2000 recipients within a 24-hour period for all existing tenants. This restriction was already implemented for all newly created tenants in January 2025.

Note: Exchange Online enforces a Recipient Rate limit of 10000 recipients for cloud-hosted mailboxes. The 2000 ERR limit will become a sublimit within this 10000 Recipient Rate limit.

Ref: https://techcommunity.microsoft.com/t5/exchange-team-blog/exchange-online-to-introduce-external-recipient-rate-limit/ba-p/4114733

Starting July 1, 2025, classic Teams desktop app will reach end of availability for all users irrespective of OS.

Note: From Oct 23, 2024, classic Teams desktop app on Windows 7,8,8.1 and Mac OS Sierra (10.12) will reach end of availability.

Solution: Users need to switch to new Teams, or they can use Teams web app (on supported browser) as an alternative.

Ref: https://admin.microsoft.com/Adminportal/Home?ref=MessageCenter/:/messages/MC783985

Exchange Online will permanently remove support for Basic authentication with Client Submission (SMTP AUTH) in September 2025.

Solution: You can start to use OAuth with Client Submission (SMTP AUTH).

Ref: https://techcommunity.microsoft.com/t5/exchange-team-blog/exchange-online-to-retire-basic-auth-for-client-submission-smtp/ba-p/4114750

Starting Oct 2025, Microsoft no longer allow authentication methods to be managed in the legacy MFA and SSPR policies.

Solution: Organizations should use the converged authentication methods policy where methods can be managed centrally for all authentication scenarios including passwordless, MFA and SSPR.

Ref: https://techcommunity.microsoft.com/t5/microsoft-entra-azure-ad-blog/microsoft-entra-change-announcements-march-2023-train/ba-p/2967448

Office 2016 and Office 2019 extended support ends in 2025.

Solution: You can start to use the latest supported versions.

Ref: https://learn.microsoft.com/en-us/lifecycle/products/microsoft-office-2016

Existing Office 365 connectors will continue to work until December 2025, after which they will no longer work.

Ref: https://learn.microsoft.com/en-us/power-bi/connect-data/service-publish-from-excel

Microsoft Advanced Threat Analytics (ATA) extended support will be ended on January 13, 2026.

Solution: Updates for Microsoft ATA are available from Microsoft Update or by manual download.

Ref: https://support.microsoft.com/en-us/topic/description-of-update-3-for-microsoft-advanced-threat-analytics-1-9-954cb9b7-9646-78ce-2000-2a257b64df7c

The Require approved client app control in Azure Active Directory (Azure AD) Conditional Access will be retired and no longer enforced.

Solution: You can make use of the “Require app protection policy” control, which has all the same capabilities

Ref: https://techcommunity.microsoft.com/t5/microsoft-entra-azure-ad-blog/microsoft-entra-change-announcements-march-2023-train/ba-p/2967448

SharePoint 2013 workflows will no longer be supported.

Solution: You can move to Power Automate or other supported solutions.

Ref: https://admin.microsoft.com/Adminportal/Home?ref=MessageCenter/:/messages/MC542767

SharePoint Add-Ins will stop working for existing tenants from April 2nd, 2026.

Solution: Admins can run the Microsoft 365 Assessment tool to scan their tenants for SharePoint Add-In usage.

Ref: https://admin.microsoft.com/Adminportal/Home?ref=MessageCenter/:/messages/MC693865

After April 2, 2026, existing tenants using Azure ACS for custom or third-party app access in SharePoint Online will no longer function due to its retirement.

Solution: Admins can utilize the Microsoft 365 Assessment tool to scan the tenants for any usage of Azure Access Control Service (ACS) and migrating from Azure ACS to Microsoft Entra ID.

Ref: https://learn.microsoft.com/en-us/sharepoint/dev/sp-add-ins/retirement-announcement-for-azure-acs

From Apr 02, 2026, the domain isolated web part feature will be fully retired. Organizations using this feature will receive an error message.

Solution: Update your domain isolated web parts to regular web parts and redeploy them to ensure continued functionality.

Ref: https://devblogs.microsoft.com/microsoft365dev/retiring-sharepoint-framework-domain-isolated-web-parts-for-sharepoint-online/

InfoPath Client 2013 will reach the end of its extended support period on July 14, 2026, and to keep an aligned experience across Microsoft products, InfoPath Forms Service will be retired from SharePoint Online.

Solution: To understand the usage of InfoPath within your organization, you can utilize the Microsoft 365 Assessment tool to scan your tenant and analyze InfoPath usage. If you are currently using InfoPath, you can initiate the migration process to modern alternatives such as Power Apps, Power Automate, or Forms.

Ref: https://techcommunity.microsoft.com/t5/microsoft-sharepoint-blog/support-update-for-infopath-forms-services-in-microsoft-365/ba-p/3858190

October 1, 2026, Microsoft will start blocking EWS requests from non-Microsoft apps to Exchange Online. The changes in Exchange Online do not affect Outlook for Windows or Mac, Teams, or any other Microsoft product.

Solution: Migrate your applications to Microsoft Graph to access Exchange Online data and gain access to the latest features and functionality.

Ref: https://techcommunity.microsoft.com/t5/exchange-team-blog/retirement-of-exchange-web-services-in-exchange-online/ba-p/3924440

User risk policy or Sign-in risk policy UX in Entra ID Protection (formerly Identity Protection) will be retired on October 1, 2026.

Solution: Migrate Sign-in risk and User risk policies to Conditional Access.

Ref: https://techcommunity.microsoft.com/t5/microsoft-entra-azure-ad-blog/what-s-new-in-microsoft-entra/ba-p/3796395

In October 2026, Microsoft will discontinue Publisher in Microsoft 365, with on-premises suite support ending. While support lasts, they’re exploring modern alternatives across Word, PowerPoint, and Designer for common Publisher tasks, with updates forthcoming.

Ref: https://admin.microsoft.com/Adminportal/Home?ref=MessageCenter/:/messages/MC716267

In conclusion, navigating the ever-evolving landscape of Microsoft 365 requires staying informed about the changes🔍. By proactively adapting to these changes, you can optimize your Microsoft 365 experience, maximize productivity, and effectively plan for the future. 💪

Don’t miss out on the latest buzz in Microsoft 365! 🐝

We’re committed to keeping this blog fresh with the most current information. Stay tuned for the latest updates!

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