In a rapid change of Office 365, Microsoft sends to Tenant Admin’s the news about what is changing and what is coming in Office 365.


This is the 237th email that Microsoft has sent to Tenant Admin’s Newsletter with Office 365 changes.


This Weekly digest is intended to reach the Administrators of Microsoft Office 365 within the latest changes that are happening to Office 365.


Below is an example that can be applied to your tenant, because these emails are based on the services that you have in your Tenant and subscription.



Message center announcements,
September 27-October 3, 2021


Major updates


M365 Records Management, Information Governance & eDiscovery– Optimized behavior of file versions preserved in SPO & ODB


MC288633 | October 1 – To improve the consistency of experience and improve performance, any file with multiple versions that is deleted from SharePoint or OneDrive which is preserved to the Preservation Hold Library (due to its applicable retention label, retention policies or eDiscovery holds) will now be retained as a single file containing its full version history, rather than each version being retained as individual files as has been the case until now. This message is associated with Microsoft 365 Roadmap ID…


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Reminder: Update to Microsoft 365 and Outlook for Windows connectivity


Act by: November 1


MC288472 | September 30 – 30-day/Final Reminder (MC229143 – DEC ’20 and MC274503 – July ’21): To ensure that we meet performance expectations, we are updating the supported versions of Outlook for Windows that can connect to Microsoft 365 services. Starting November 1, 2021, the following versions of Outlook for Windows, as part of Office and Microsoft 365 Apps, will not be able to connect with Office 365 and Microsoft 365 services. Office and Microsoft 365 Apps Outlook for Windows Version Office 2013 15.0.4970.9999 and…


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(Updated) Microsoft Defender for Office 365: Extending Secure by Default for Exchange Transport Rules (ETRs)


MC265759 | September 30 – Updated September 30, 2021: We have updated the rollout timeline below. Thank you for your patience. Microsoft believes it’s critical to keep our customers secure by default. We have determined that legacy overrides tend to be too broad and cause more harm than good. As a security service, we believe it’s imperative that we act on your behalf to prevent your users from being compromised. This means these legacy overrides will no longer be honored for email messages we believe are malicious. We…


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(Updated) Upcoming Changes to Auto-Expanding Archive


MC288051 | September 30 – Updated September 30, 2021: We have updated the content below for additional clarity. Thank you for your patience.We will be removing the word ‘Unlimited’ from our service description and related public documentation for the auto-expanding archiving feature, and instituting a 1.5TB limit for archive mailboxes. This limit is not configurable.


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Configuration Change: Power BI app for Microsoft Teams automatic installation and availability for government customers


MC288054 | September 29 – Users will soon find it easier to find and share reports in Teams and they’ll be able to receive notifications when content is shared to them. Messaging extension will support search, link unfurling, and inserting cards into messages. Two changes are planned: Power BI will be automatically installed for users in your organization when they use the Power BI service in a web browser and have a Microsoft Teams license.Power BI app for Teams will become available to government customers.These…


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(Updated) Exchange Online and Basic Auth – September 2021 Update


Act by: October 22


MC286990 | September 27 – Updated September 27, 2021: We have updated the content for additional clarity. Thank you for your feedback.We’re making some changes to improve the security of your tenant. We announced in 2019 we would be retiring Basic Authentication for legacy protocols, and in early 2021 we announced we would begin to retire Basic Authentication for protocols not being used in tenants, but not disable Basic Authentication for any in-use protocols until further notice. Today, we are announcing that,…


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Additional updates


OneDrive and SharePoint: Improved Move/Copy user experience


MC288642 | October 1 – We’re refreshing the Move/Copy user experience in OneDrive and SharePoint to make it easier for you to move and copy your files and folders.This message is associated with Microsoft 365 Roadmap ID 85567


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Exchange online auto-expanding archive–Automatic archive of mailbox items in Purges,Versions and Discovery Holds folders


MC288630 | October 1 – We are rolling out an update which will automatically move any mailbox items preserved in the “Purges”, “Versions”, and “Discovery Holds” folders in the primary mailbox to the archive mailbox daily. Customers will no longer be required to create separate policies for archiving email content in the “Recoverable Items” folders mentioned. Once this change finishes rolling out, the existing archiving policies created by customers for these folders will be ignored. This change does not impact the…


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Peer5 now available for Teams Live Events


MC288467 | September 30 – You are now able to use Peer5 as an Enterprise Content Delivery Network (eCDN) provider for your Teams Live Event scenarios. This message is associated with Microsoft 365 Roadmap ID 85787.


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(Updated) Microsoft 365 roadmap site updates


MC277639 | September 30 – Updated September 30, 2021: We have updated the rollout timeline below and provided additional details. Thank you for your patience. We will be making updates to the Microsoft 365 roadmap on how you view, filter, search for, and sort the information.


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(Updated) Content from camera now launched in Teams


MC286780 | September 30 – Updated September 30, 2021: We have updated the rollout timeline below. Thank you for your patience.As hybrid workplaces become more common, we’re excited to let you know that content from camera will soon be available in Microsoft Teams. This option enables users to stream content from directly from physical artefacts such as whiteboards and documents in a legible way. During a Teams call, users will be able to access the projection options simply by clickingShare > Content from camera. Two…


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(Updated) Hardware Support for AJA and Blackmagic Devices


MC287353 | September 30 – Updated September 30, 2021: We’ve updated the rollout timeline below. Thank you for your patience. The ability for Teams clients to stream content from a client to the local network via Network Device Interface (NDI) is being expanded to enable streaming content to select attached hardware devices. Users with the ability to turn on NDI will also be able to push content to attached hardware devices from AJA or Blackmagic Designs. This will enable users to push content from Teams out via attached…


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(Updated) SharePoint Collapsible Sections


MC266077 | September 30 – Updated September 30, 2021: As shared previously, the new Collapsible Sections was deployed to 100% of Targeted Release customers. We held the solution at the Targeted Release phase while we addressed some issues that were reported with the solution. The issues have now been addressed and we will be resuming the global rollout to all customers. It is now our expectation that we’ll complete the rollout of the feature by the end of October 2021. Thank you for your patience. This new feature will…


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Updates available for Microsoft 365 Apps for Current Channel


MC288066 | September 29 – We’ve released updates to the following update channel for Microsoft 365 Apps: Current Channel


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CART Caption support in Microsoft Teams Meetings


MC288055 | September 29 – Users will now be able to view real-time captions coming from a CART (Communication Access Real-Time Translation) provider within the Microsoft Teams meeting window. Meeting organizers and participants will be able to ask their CART captioning providers to stream captions to Microsoft Teams. This message is associated with Microsoft 365 Roadmap ID 70588


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Reminder: IE11 desktop application retires in 9 months on June 15, 2022 – Set up IE mode today (non-LTSC, non-Server)


Act by: June 15


MC288052 | September 29 – As announced in MC257152 (May 2021), the future of Internet Explorer on Windows 10 is in Microsoft Edge. Internet Explorer mode (IE mode) provides legacy browser support within Microsoft Edge. Because of this, the IE11 desktop application will be retired on June 15, 2022. This means that the IE11 desktop application will no longer be supported and afterwards will redirect to Microsoft Edge if a user tries to access it. With 9 months left before retirement, we highly recommend you start…


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Microsoft 365 Compliance Center: Core and Advanced eDiscovery: Enhanced Keyword Query Language (KQL) editor experience


MC288050 | September 29 – The new KQL editor experiences provides a quick way to get started building complex queries across Core eDiscovery holds and search, and Advanced eDiscovery holds and collections.This message is associated with Microsoft 365 Roadmap ID 85582


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(Updated) Image Utility Edit Control


MC286779 | September 28 – Updated September 28, 2021: We have updated the message to ensure it is visible to all impacted organizations. Thank you for your patience. A set of utility tools to quickly fix and format an image on OneDrive for Business and SharePoint Online will soon be available. Capabilities will include; rotate, crop (freeform crop and fixed aspect ratio crop), and flip (horizontally and vertically). The update will also include a set of commonly used adjustments to adjust the quality of the photograph…


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(Updated) Introducing background effects on web


MC277112 | September 28 – Updated September 28, 2021: We have updated the rollout timeline below. Thank you for your patience.Introducing background effects on web. If you want to change what appears behind you in your video meeting or call, you can either blur your background or replace it entirely with any image you want.Note: Blurring or replacing your background might not prevent sensitive information from being visible to other people in the call or meeting.This message is associated with Microsoft 365 Roadmap ID…


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(Updated) OneDrive: New Command Bar


MC285602 | September 28 – Updated September 28, 2021: We have updated the rollout timeline below. Thank you for your patience.With this update users will be able to easily identify the right file and access primary commands. The new simplified view will permit users to focus on the content while at the same time being visually pleasing.This message is associated with Microsoft 365 Roadmap ID 85602.


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(Updated) Meeting Join Custom Branding


MC268191 | September 28 – Updated September 28, 2021: We have updated the rollout timeline below. Thank you for your patience. Additionally, this feature will be available as a preview until December 31, 2021. After that, an Advanced Communications license is required to continue using this feature, as noted below. This new release of meeting Join Custom Branding will allow tenant admins to upload their company logo to the Teams admin portal so it appears on the meeting pre-join and lobby screens for meetings organized…


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To view all announcements, sign in to Microsoft 365 admin center



Note: My Tenant is based in Europe with Target Release Enabled. You can view more messages on your portal, just go to the Message center.


Quickly access relevant information and functionality from the new home page—The home page has been redesigned with you and your most common tasks in mind—such as adding a user or resetting a password. The new admin center makes these items accessible directly from the home page. The home page also proactively surfaces information important to you, such as notifications from the Message Center.



More news and more information here –


If you what to know more about Office 365 here is my book – Office 365 Essentials –

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