Bootstrap uses [GitHub's Releases feature](https://github.com/blog/1547-release-your-software) for its changelogs.

See [the Releases section of our GitHub project](https://github.com/twbs/bootstrap/releases) for changelogs for each release version of Bootstrap.

Release announcement posts on [the official Bootstrap blog](http://blog.getbootstrap.com) contain summaries of the most noteworthy changes made in each release.

Add changelog file that points to GitHub Releases & our blog
Add changelog file that points to GitHub Releases & our blog

Refs #16739
[skip sauce]
[skip validator]