Microsoft detailed its plan for the popular OneNote app this month. Having recently brought dark mode and extended support to the revived OneNote 2016 it appears Microsoft has deeper plans for the desktop app and OneNote overall.
Microsoft will be moving to a single codebase allowing them to deliver new features across all the version of OneNote, including modern sync services to sync notebooks faster, @mentions for OneNote inside of Teams, new meeting notes features, tasks and To Do integration, accessibility improvements and search integration.