If Microsoft does move forward with the tabs feature for Notepad, it will be the first built-in app to receive a tabbed interface, following the addition of tabs to the File Explorer earlier this year. Four years ago, Microsoft tested tabs across all Windows 10 apps in a feature called Sets, which included support for tabs in Notepad and File Explorer. However, the project was eventually canceled and never released to Windows 10 users.
The addition of tabs in Notepad could signify a shift towards more built-in Windows apps getting tabbed interfaces. While Microsoft discontinued the Sets feature for Windows 10, power users have turned to third-party tools and apps to bring tabs to various parts of the operating system. The potential introduction of tabs in Notepad could make it easier for users to manage multiple files and documents within the app.