Microsoft is making Copilot Chat a little more flexible for Outlook users. Starting in late August 2026, users of Outlook for Mac and Outlook for iPad will be able to pop Copilot Chat out of the main Outlook interface and keep it open as a separate floating, resizable window.
The update may sound like a small interface improvement, but for people who regularly use AI while managing email, it could make a noticeable difference. Instead of constantly switching between the Copilot panel and their inbox, users will be able to keep Copilot Chat visible while continuing to work inside Outlook.
Microsoft updated the rollout timeline on August 19, 2026, confirming that worldwide general availability will now begin in late August 2026, rather than the previously announced mid-August timeframe. The rollout is expected to be completed by mid-September 2026.
A More Flexible Copilot Experience in Outlook
Copilot Chat has increasingly become part of the everyday workflow for Microsoft 365 users. Whether someone is summarizing information, drafting content, asking questions, or working through email-related tasks, having an AI assistant available directly inside Outlook can save time.
The challenge is that a traditional embedded chat panel can compete for screen space with the inbox and message-reading area.
Microsoft’s new pop-out capability addresses that problem by allowing Copilot Chat to live in its own floating window.
When the feature becomes available, eligible users will see a Pop out button in Copilot Chat. Selecting it will move the conversation into a separate window that floats over the main Outlook window.
That means users can continue browsing email, reviewing messages, navigating Outlook controls, or switching between different parts of the application without losing sight of their Copilot conversation.
For multitaskers, that could be the most important part of this update.
What Mac Users Can Do
On Outlook for Mac, the floating Copilot Chat window can be dragged and resized within the boundaries of the Outlook application window.
This gives Mac users more control over how much screen space Copilot occupies.
For example, someone reviewing a long email could keep a relatively small Copilot window on one side of the Outlook workspace. If they need more room to read or interact with a longer AI response, they can resize the window.
The experience is designed to make Copilot feel less like a panel attached to Outlook and more like a flexible workspace that users can position according to what they are doing.
There are also straightforward controls for managing the experience. A Return button allows users to move Copilot Chat back into the main Outlook window, while a Close button lets them dismiss the floating window completely.
iPad Users Get More Multitasking Flexibility
The update is also coming to Outlook for iPad, where screen space and multitasking behavior are particularly important.
On iPad, users will be able to reposition the Copilot Chat window horizontally and resize it vertically.
That could be useful when working with an email while simultaneously asking Copilot for help. Instead of repeatedly opening and closing the chat experience, users can keep it accessible while moving through Outlook.
The ability to adjust the size of the Copilot window also means users can choose how much attention they want to give the AI assistant at any particular moment.
It is a relatively simple change, but these types of interface improvements can have an outsized effect on how comfortable an application feels during everyday work.
The Feature Will Be Enabled by Default
Organizations do not need to take action to turn on the new capability.
Microsoft says the feature will be enabled by default for eligible users who have access to Copilot Chat in Outlook for Mac or Outlook for iPad.
The rollout is scheduled to begin worldwide in late August 2026 and is expected to finish by mid-September.
Because the feature will arrive automatically, organizations with Microsoft 365 users may want to prepare employees for the change even though no technical configuration is required.
A short internal announcement could be enough to explain where the new Pop out button appears and how employees can return Copilot Chat to its normal position.
Why This Matters for Everyday Work
The bigger story here is not simply that Microsoft has added another button to Outlook.
It reflects a broader shift in how AI assistants are being integrated into productivity software.
AI tools are most useful when they are available at the moment people need them. At the same time, users do not necessarily want AI to take over the entire screen or interrupt the task they are already performing.
A floating Copilot Chat window offers something of a middle ground.
Users can keep AI close without giving up the rest of their Outlook workspace.
Imagine a professional preparing for a meeting while going through a crowded inbox. They might use Copilot to summarize a long email thread, then continue reviewing other messages while keeping the chat window visible. A manager could ask Copilot for help drafting a response while still referencing the original message. Someone organizing a busy day could move between Outlook controls without repeatedly reopening the assistant.
Those scenarios are exactly where a floating interface can make sense.
A Small Update With Practical Benefits
Microsoft’s Copilot strategy has increasingly focused on bringing AI into the applications people already use every day. Outlook is a natural place for that integration because email remains a major source of communication, information, documents, and tasks for businesses.
The new floating-window capability does not fundamentally change what Copilot Chat can do. Instead, it changes how users interact with it.
And that distinction matters.
A powerful AI assistant can still become frustrating if accessing it requires too much navigation. By allowing Copilot Chat to remain visible while users work elsewhere in Outlook, Microsoft is making the assistant feel more like a persistent productivity companion.
The feature also gives users more control. They can pop Copilot out when they want it, resize it, move it, return it to the main Outlook interface, or close it when they are finished.
What Organizations Should Do
There is no mandatory administrative action associated with the rollout.
However, Microsoft recommends that organizations consider notifying users about the updated Copilot Chat experience. Companies that maintain internal Microsoft 365 training materials or Outlook documentation may also want to update those resources.
This could be particularly relevant for organizations that have recently trained employees on the existing Copilot interface. Employees may otherwise be surprised when they see a new Pop out option appear.
IT teams can treat this as a relatively low-impact user-experience update rather than a major deployment project.
Microsoft has also indicated that there are no specific compliance considerations identified for the feature, although organizations should continue to review the change according to their own policies and requirements.
When Will the New Outlook Copilot Feature Arrive?
The updated timeline is straightforward.
Worldwide general availability is expected to begin in late August 2026, with the rollout expected to complete by mid-September 2026.
The feature applies to users who have access to Copilot Chat in Outlook for Mac and Outlook for iPad.
Microsoft previously indicated a mid-August rollout, but the company updated the timeline on August 19, asking users to allow additional time for the worldwide deployment.
Summary
The new floating Copilot Chat experience may not be the biggest Microsoft 365 update of the year, but it is the kind of practical improvement that could make AI more useful during everyday work.
For Mac users, the ability to drag and resize Copilot within the Outlook application provides more control over screen space. On iPad, the ability to reposition the chat horizontally and resize it vertically makes it easier to combine Copilot with other Outlook activities.
Most importantly, users do not have to configure anything to get started.
As the rollout begins in late August and continues through mid-September 2026, Outlook users with Copilot Chat can expect to see a new way of working with Microsoft’s AI assistant one that keeps Copilot within reach without forcing it to stay inside the main Outlook window.
It is a small change, but for anyone who spends hours each week managing email, small changes to the workflow can add up quickly.






