We have introduced new assets to the Asset Panel, so that you can create beautiful engaging eLearning content in minutes. We’ve added few quick start projects with new layouts and interactions, ten new characters with multiple poses, new images, and videos. These assets will be added automatically into the Asset Panel. You need not update the product.
If you use Captivate 2019, these are some decent resources — especially if you have limited design experience or no ability to collaborate with a designer.