In July of 2017, Adobe announced that it would stop distributing and updating Flash Player after December 31, 2020. Adobe decided to end support for Flash Player due to the diminished usage of the technology.
Instructors who have Flash-based content in their courses will want to convert the content to a more secure option such as HTML5. With the demise of the Flash Player, students will no longer be able to view your Flash-based content safely.