M365 Roundup, April 2025: Teams Premium Starts Watching Screen Shares
TL;DR
- Teams Premium is adding tenant-level detection of sensitive content during screen sharing, on by default, alerting organizers and presenters to exposure risk starting late June 2025.
- Purview's data security and compliance coverage for generative AI apps moves to pay-as-you-go pricing on May 1, 2025, ahead of general availability.
- Purview Data Security Investigations brings AI-powered deep content analysis to incident scoping across email, Teams messages, Copilot prompts, and documents.
- SharePoint eSignature extends to Word documents, removing the PDF conversion step from signature requests.
- Exchange Online's mail flow reports gain threat classification so admins can see the intent behind an email attack, not just the verdict.
The April 2025 wave has a clear security thread running through it: Teams Premium will analyze shared screens for sensitive content in real time, Defender for Office 365 starts classifying the intent behind email attacks, and Purview both meters its GenAI data security features as pay-as-you-go and ships a new AI-assisted investigations tool. Around that core sits a heavy month of Copilot rollouts and a stack of Teams meeting refinements. The full month, grouped by product.
Microsoft Teams
Channel creation moves to the New items menu
Users will be able to create new channels in a team directly from the New items drop-down at the top of their chats and channels list, instead of scrolling down to the specific team. Rollout: mid-May 2025, completing by late May 2025.
Presenters can share control of PowerPoint slides
A new Slide Control feature lets presenters in meetings and events share control of their PowerPoint presentations with other participants. Rollout: mid-June 2025, completing by late June 2025.
The first channel no longer has to be called General
Team owners on the desktop client will be able to name the first channel while creating the team, or rename an existing first channel to General by typing the string "General" or using the more options button in the text field. Rollout: early May 2025, completing by mid-May 2025.
Teams Premium will flag sensitive content in screen shares
A new tenant-level feature called Detect sensitive content during screen sharing, on by default for Teams Premium, proactively analyzes onscreen content and alerts meeting organizers, co-organizers, and presenters to any risk of exposure. For MSPs, this is the headline item of the month: real-time DLP awareness inside the meeting itself. Rollout: late June 2025, completing by late July 2025.
Town hall staff can preview the event as an attendee
Organizers, co-organizers, and presenters in a Teams town hall will be able to join and view the event from an attendee's perspective. Rollout: mid-June 2025, completing by late June 2025.
Preview changes before attendees see them
Before this rollout, bringing a participant or shared content on or off screen updated the attendee view immediately. After it, organizers and presenters can preview changes before applying them, producing smoother transitions without broadcasting every adjustment. The control lives in the town hall Meeting options under Manage what attendees see. Rollout: mid-June 2025, completing by late June 2025.
Ultra-low latency comes to Teams Premium town halls
Town hall attendees typically watch with a 20 to 30 second delay. With ultra-low latency (ULL), attendees view and participate nearly in sync with what presenters and organizers are sharing. Rollout: early June 2025, completing by mid-June 2025.
Google Workspace calendars sync both ways with Teams
Businesses using Google Workspace for email and calendaring can enable bidirectional syncing with Microsoft Teams through the Admin app in Teams, so events created in either platform appear in both, reducing missed meetings. Documentation: Set up calendar syncing with Google Workspace (opens in new tab). Rollout: early May 2025, completing by late May 2025.
Microsoft Outlook
Shared mailboxes display like accounts in the folder pane
To align with classic Outlook for Windows behavior, shared mailboxes will display the same way accounts are displayed, with a Shared icon distinguishing them from standard mailboxes. Rollout: early July 2025, completing by late July 2025.
A new Shared with me settings page
New Outlook for Windows and Outlook for web are getting a Settings page called Shared with me, where users can view and manage all shared email accounts and folders they have been granted permission to access. Rollout: early July 2025, completing by early August 2025.
Microsoft 365 Apps
Office installer adds a Startup Boost task
A new Startup Boost task from the Microsoft Office installer optimizes performance and load time of Office applications. After the system performs the task, the app sits in a paused state until launch resumes the sequence, or until the system reclaims the memory. The task runs after a device reboot and periodically as system conditions allow. Worth knowing about when a client asks why a new scheduled task appeared. Rollout: mid-May 2025, completing by late May 2025.
SharePoint eSignature works directly on Word documents
SharePoint eSignature already handles signature requests from PDFs using Microsoft's native eSignature service. With this update, users can create eSignature requests from Word documents without converting to PDF first. Documentation: SharePoint eSignature overview (opens in new tab). Rollout: late May 2025, completing by early July 2025.
Microsoft Intune
Intune gets a new icon
Cosmetic but worth a heads-up before a client asks: the icon above is what now appears in the Intune Admin Center.
Microsoft Copilot
AI adoption category in Adoption Score reaches general availability
The AI adoption category page in Adoption Score helps adoption specialists measure progress toward making Microsoft 365 Copilot a daily habit. Rollout: mid-April 2025, completing by end of April 2025.
Copilot summaries follow transferred calls
Copilot-enabled users in Teams can share the summary of a call from within the transfer panel, with the context shown in the toast notification and within the call for whoever picks it up. Rollout: mid-May 2025, completing by late May 2025.
Meeting Copilot responses export to Word and Excel
Copilot responses in Teams meetings can be shared to external apps. Responses generated by Copilot in meetings come with an Open in another app button targeting Word or Excel. Rollout: mid-May 2025, completing by late May 2025.
Highlight and rewrite arrives in classic Outlook for Windows
Draft with Copilot can now improve specific sections of an email draft: highlight a passage, then use Draft with Copilot to iterate on just that text. Rollout: late May 2025, completing by late June 2025.
PowerPoint generates automatic presentation summaries
PowerPoint will create an automatic presentation summary to help readers understand the topics covered in a slide deck. Rollout: mid-April 2025, completing by late May 2025.
Copilot converts paragraphs to bullets in PowerPoint
PowerPoint will offer text editing with Copilot, letting users convert paragraphs of text into bullet points or numbered lists. Rollout: mid-April 2025 (previously late March), completing by mid-May 2025.
Copilot in Forms drafts from your existing files
When creating a form with Copilot, users can reference existing Word, Excel, and PowerPoint documents, or existing forms, to help generate the draft. Rollout: mid-April 2025, completing by late April 2025.
Admin, Defender, and Purview
Defender for Office 365 reports gain threat classification
Threat classification is coming to the Mail flow status summary report and the Threat protection status report, adding visibility into the intent behind an email attack rather than just the detection verdict. Rollout: mid-March 2025, completing by late May 2025.
Purview's GenAI data security moves to pay-as-you-go
Detection, processing, and storage of interactions on generative AI applications such as Security Copilot and Copilot Studio under Purview's compliance solutions, including Data Lifecycle Management, eDiscovery, and Communication Compliance, and its data security capabilities, including Insider Risk Management and data classification, begin using a pay-as-you-go pricing model on May 1, 2025 in preparation for general availability. If clients have GenAI tools in scope for Purview, this is a billing conversation to have before the meter starts. Details: Enable Microsoft Purview pay-as-you-go features (opens in new tab). Rollout: mid-June 2025, completing by late June 2025.
Purview Data Security Investigations brings AI to incident scoping
The new Data Security Investigations (DSI) solution lets data security admins identify incident-relevant content by searching the Microsoft 365 data estate for emails, Teams messages, Copilot prompts and responses, and documents. Once an investigation is scoped, DSI's generative AI capabilities surface deeper insights into the impacted data, revealing security risks and sensitive information. Investigative tooling includes evidence categorization, vector searches, and examination of impacted data for security and sensitive data risks. Announcement: Accelerate data security investigations with AI-powered deep content analysis (opens in new tab). Rollout: mid-June 2025, completing by late July 2025.
April's defaults are next quarter's drift
New features arrive enabled, licensing models shift, and tenant settings move underneath you. CloudCapsule rechecks 250+ Microsoft 365 controls per tenant in about 60 seconds, now with mappings to the CIS Controls and Essential Eight.
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Written by
Nick Ross
CEO · Microsoft MVP · Founder, T-Minus 365
Nick is not just a CEO, he's a respected thought leader and influencer in the MSP space. Tens of thousands of MSPs learn through his YouTube channel, T-Minus365. Nick has been honored as a three-time Microsoft MVP for his educational content; his expertise and influence are the backbone of our mission, ensuring that you are in the best hands when it comes to security.
Nick joined Pax8 in 2017, where he would ultimately oversee product management for PSA and Microsoft integrations. Following his tenure at Pax8, Nick has continued to demonstrate his leadership prowess as an executive at various MSPs, culminating in his most recent role at Sourcepass.
Nick holds a Bachelor's Degree in Business Management from Florida State University, as well as a Minor Degree in Entrepreneurship. In his free time, Nick is an avid hiker, reader, and fitness-junkie.
