DIVI Timleine Extended Bundle is fully compatible with Divi : Version 4.9.4. Some features or elements may not be compatible with previous versions. Please ensure that you’ve downloaded the latest version of Divi.The Divi theme is not included in this package. To download Divi, you must first purchase a membership to Elegant Themes and download the Divi theme package.
A good knowledge of Divi and basic knowledge of CSS (a little bit of color swapping).
Wordpress : Version 5.7.2
Divi : Version 4.9.4