Difference between Bootstrap 4 & Bootstrap 5 In this short write-up, we are about to have a short discussion on how Bootstrap 4 differs from Bootstrap 5. Bootstrap 4 uses Jekyll software. Bootstrap 4 now has much more special features such as cards, flexbox, Sass integration and robust plugins built using jQuery. Bootstrap 5 uses Hugo software. Bootstrap 5 helps activate responsive font sizes, Disabled JQuery, Moved forward to Vanilla JavaScript, Updated form elements, Breaking changes in GitHub issues. Removed the support for IE 10 and 11. Bootstrap 4 Generally, bootstrap 4 contains 5 tiers (xs, sm, md, lg, xl). They are available in very limited colours. Utilities in bootstrap 4 cannot be modified. It supports Jumbotron Columns can be positioned relative It has jquery and all related plugins. It supports both IE 10 and 11. Bootstrap 5 Bootstrap 5 contains 6 tiers (xs, sm, md, lg, xl, xxl). Extra colours added with the improved colour palette. Bootstrap 5 provides liberty to ...