If you are starting a new project with Bootstrap 5 or are using Bootstrap templates, keeping these changes in mind will help you make a decision about choosing Bootstrap 5 over Bootstrap 4. Here is the list of major differences you need to keep in mind when updating your old projects that are built with Bootstrap 4 or earlier. Existing features and components have been improved, support for older browsers has been removed, jQuery has been dropped for regular JavaScript, and more future-friendly technologies have been embraced like CSS custom properties as part of the tooling.Īs with any major version change, a lot has changed in Bootstrap 5 over Bootstrap 4. The latest release, Bootstrap 5, focuses on improving v4’s codebase with as few major breaking changes as possible. The intention of the Bootstrap team is to help in a small way to move the web development community forward by pushing for newer CSS properties, fewer dependencies, and new technologies across more modern browsers. With Bootstrap 4, the project was rewritten once again to account for two key architectural changes: a migration to Sass and the move to CSS’s flexbox. Building on that with Bootstrap 3, the library was rewritten once more to make it responsive by default with a mobile first approach. With Bootstrap 2, responsive functionality was added to the entire framework as an optional stylesheet. Originally released on Friday, August 19, 2011, since then there were over twenty releases, including two major rewrites with v2 and v3. It served as the style guide for internal tools development at the company for over a year before its public release, and continues to do so today. A few months into development, Twitter held its first Hack Week and the project exploded as developers of all skill levels jumped in without any external guidance. Originally created by a designer and a developer at Twitter, Bootstrap has become one of the most popular front-end frameworks and open source projects in the world.īootstrap was created at Twitter in mid-2010 by and Prior to being an open-sourced framework, Bootstrap was known as Twitter Blueprint.