The Canvas rich content editor is the tool used whenever creating new content in Canvas. It consists of a text window and a panel of buttons used to modify the content entered. You can find the Rich Content editor in many places in Canvas, including pages, assignments, and discussions.
In November 2020, Canvas introduced a new Rich Content Editor as an option for people creating content in Canvas.
If you’d like to test the New RCE prior to January 16th, you may enable it on a course-by-course basis.