# Changelog The changelog is tracked here but also in [the Releases section of the GitHub project](https://github.com/twbs/bootstrap-rubygem/releases). The changelog only includes changes specific to the RubyGem. The Bootstrap framework changes can be found in [the Releases section of twbs/bootstrap](https://github.com/twbs/bootstrap/releases). Release announcement posts on [the official Bootstrap blog](http://blog.getbootstrap.com) contain summaries of the most noteworthy changes made in each release of Bootstrap. # 4.2.1 * Bootstrap rubygem now depends on SassC instead of Sass. # 4.0.0.beta2.1 Fixes an extraneous `sourceMappingURL` in `bootstrap.js`. [#124](https://github.com/twbs/bootstrap-rubygem/issues/124) # 4.0.0.beta2 Compass is no longer supported. Minimum required Sass version is now v3.5.2. [#122](https://github.com/twbs/bootstrap-rubygem/pull/122) # 4.0.0.alpha3.1 This release corresponds to the upstream Bootstrap 4 Alpha 3.