Microsoft's push to update all its classic apps for Windows 11 has now moved on to its email platform.

Following makeovers for core tools such as Paint, Word and even Notepad, the company is now reportedly hard at work on a refresh for its Outlook email platform.

The work, codenamed Project Monarch, will look to update email on Windows 11, offering a truly cross-platform experience for users looking to embrace hybrid working.

One Outlook

News of Project Monarch first appeared in January 2021 under rumors that Microsoft was looking to unite all its email programs under one brand, as well as replacing the current calendar app in Windows.

It was said that the new client will work across Windows 10, Windows 11, macOS and the web, allowing Microsoft to replace its existing Outlook Win32, UWP and Outlook for Mac clients with one that offers a unified experience across platforms in a similar way to how Outlook for the web works.

Now, WindowsLatest claims that new references on Microsoft's website suggest that the new program could see a public preview of the One Outlook app in late March or April 2022, before expanding to other Insider channels in the summer ahead of a general launch in autumn 2022.

Both the classic and new One Outlook apps will be available simultaneously to begin with, giving users a chance to manage their switch over.

The site claims that a Microsoft support document it has discovered shows that the new app interface will be similar to Outlook web. This includes the rounded corners and icons already seen in a raft of new Windows 11 apps as Microsoft looks to offer a unified design approach.

The news comes after a series of recent updates and upgrades for Outlook as Microsoft looks to breathe new life into the software.

This includes an upcoming upgrade that will allow Outlook web users to customize the color of the events in their calendar app, the launch of spelling and grammar checks for Outlook on mobile platform, and another update to let users set a notice showing where they are working, whether that be at home, in the office, or elsewhere.