Announcement with video link describing the changes: Note-taking made easier for everyone—redesigning OneNote - Office Blogs.
OneNote help article: Get started with the new OneNote - Office Support
The redesign will be rolling out over the coming weeks for Windows 10, Mac, iOS, Android and OneNote Online. However, Windows Insiders can get the updated version from the Store now.
OneNote help article: Get started with the new OneNote - Office Support
The redesign will be rolling out over the coming weeks for Windows 10, Mac, iOS, Android and OneNote Online. However, Windows Insiders can get the updated version from the Store now.