With our first beta release of Bootstrap 5, we’re calling it on new features and breaking changes. From here on out, we’re only fine-tuning features, bugs, and documentation on our way to a stable v5 release. Woohoo!
https://blog.getbootstrap.com/2020/12/07/bootstrap-5-beta-1/
https://blog.getbootstrap.com/2020/12/07/bootstrap-5-beta-1/