The mtemplate package is a small set of changes to the template package that comes with the Go SDK. It allows for templates to be nested within each other, providing the ability to separate shared content so that it is not duplicated in every template of an application.
This should be helpful for web developers, who frequently deal with non-changing skeletons into which page-specific HTML needs to be injected.
Templates can be nested to any depth, and data that is provided to a child template is passed on to parent templates, so they can have dynamically-generated content as well.
Read about What's New in the project.
See the Roadmap for an idea of the changes that are planned and the current status of their implementation.
Check out an Example of how these features work.