...Fully automated changelog generation - This gem generates a changelog file based on tags, issues and merged pull requests (and splits them into separate lists according to labels) from octocat: GitHub. What’s the point of a changelog? To make it easier for users and contributors to see precisely what notable changes have been made between each release (or version) of the project. Why should I care? Because software tools are for people. "Changelogs make it easier for users and contributors to see precisely what notable changes have been made between each release (or version) of the project." Using Docker is an alternative to installing Ruby and the gem.