April’s Microsoft 365 updates continue the pace of change across Copilot, security, compliance, and the Power Platform. This month includes several reactive changes that organisations must plan for, alongside admin decisions that shape how AI and collaboration tools are governed, and a set of practical enhancements that improve cost control, visibility, and data protection.
As with previous updates, we’ve grouped the most relevant changes by theme and included clear guidance on why they matter and what actions to take, so you can prioritise effort and reduce risk.
Copilot & AIMicrosoft 365 Copilot Chat – Experience Changes Description: Microsoft has completed the move to a unified Copilot Chat experience. Copilot chat entry points have been removed from Word, Excel, PowerPoint (and Lists) for users on basic Copilot licences, consolidating access through the Copilot web experience instead. This reduces confusion between in-app and web-based Copilot, but represents a visible change for end users. Rollout: Mid-April 2026 Why it matters: Users accustomed to launching Copilot directly from Office apps may assume functionality has been removed. Without communication, this can generate unnecessary support queries. Actions to take:
Copilot Agent Model Upgrade Description: Declarative Copilot agents are being upgraded to the GPT‑5.2 model. This brings improved reasoning quality, greater accuracy, and better handling of multi‑step tasks, particularly for more complex business scenarios. Rollout: March–April 2026 Why it matters: Agent builders may see noticeable differences in output. While improvements are expected, organisations should still validate behaviour, especially where agents support business‑critical processes. Actions to take:
Admin Control for AI‑Generated Code Previews Description: Microsoft has introduced an admin control that allows organisations to enable or disable AI‑generated code previews in Copilot Pages. While Copilot Chat supports ideation, Pages are designed for producing persistent, shareable work such as documents, plans, and code. Rollout: Mid-March - mid-April 2026 Why it matters: Some organisations may wish to restrict AI‑generated code due to security, quality, or governance concerns. Actions to take:
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Microsoft TeamsExternal Bot Detection in Teams Meetings Description: Teams can now automatically detect and label external bots joining meetings. Meeting organisers are alerted and can explicitly allow or deny the bot’s participation. Rollout: June 2026 Why it matters: As AI note‑takers and third‑party assistants become more common, this feature improves transparency and meeting security. Actions to take:
Description: Microsoft is retiring automatic e‑mail notifications that warn users when Teams meeting recordings are about to expire. Rollout: 1 June 2026 Why it matters: Some users rely on these emails to manage recordings or trigger downstream actions. Actions to take:
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Microsoft SharePointInfoPath Form Publishing Retirement Description: As part of the wider InfoPath retirement, organisations will no longer be able to publish new or updated InfoPath forms in SharePoint Online. Existing forms will continue to function until full retirement in July 2026. Key Dates:
Why it matters: Business-critical workflows may break if not modernised. Actions to take:
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Security, Compliance & PurviewPurview Posture Reports – Generally Available Description: New Microsoft Purview posture reports are now generally available, offering executive‑ready insights into sensitivity labels, DLP policy activity, and overall data protection posture. Why it matters: Improves visibility, trend analysis, and reporting without manual effort. Actions to take:
Item‑Level Investigation for Purview DSPM (SharePoint) Description: New Purview DSPM now supports item‑level investigation and remediation for SharePoint. Administrators can identify overshared files, apply labels, remove sharing, or notify owners directly from Purview. Why it matters: Delivers faster remediation and stronger governance without relying on broad site‑level controls. Actions to take:
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Power PlatformShared Process Licence Capacity (Power Automate) Description: A single Power Automate process licence can now be shared across up to 25 cloud flows, reducing licensing overhead for shared or service‑based automation scenarios.. Expected Availability: Late April 2026 Why it matters: Improves cost efficiency for organisations using premium connectors and service principals. Actions to take:
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April’s Microsoft 365 updates reinforce three clear themes: AI governance, security insight, and operational efficiency. With several reactive changes and meaningful opportunities to reduce cost and risk, proactive planning and communication remain essential.
By addressing required actions now and selectively enabling new capabilities, organisations can stay ahead of change while continuing to maximise value from Microsoft 365.
Many organisations are underutilising their Microsoft licenses and are therefore wasting valuable income. If you need help utilising these latest developments or want to discuss your Microsoft licenses more widely, get in touch with us.
Kind regards,
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Mhairi Nisbet
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