If you need more than the three default environments, you can create custom environments to give you more options.
The Workflow Management feature activates a workflow process where all publishes to the Prod require approval.
Version labels help you organize your publish version history.
The diff tool is built for version control and distro verification. It allows you to compare the versions published in your profile and inspect their distro files.
The merge feature is useful when you have to bring changes from an old version into the currently published version.
This article describes how to bring in changes from concurrent users of the same profile version.
This article explains how to implement Subresource integrity to ensure that your visitors receive valid utag.js files through the Tealium CDN.