Microsoft has transformed its Notepad text editor in Windows 11, introducing features such as a tabbed user interface, basic session state management, a "Recent files" option, and AI-driven writing tools. Notepad now supports Markdown markup language for light formatting and includes customizable settings for themes, fonts, document opening preferences, and the ability to disable certain features. Users can access AI writing tools through a Copilot button, which requires a Microsoft account and an active Microsoft 365 subscription. The classic Notepad version is still available, allowing users to revert to the previous interface, although it cannot be set as the default app for text files.