The many versions of Moodle that have come out every 6 months with a huge stack of improvements and enhancements can make sorting through the Moodle Docs as little difficult. That problem has been mitigated recently by a change to the documentation navigation. Now you can click through any doc page to see the specific page for each major release.
The doc page that you’re one will be easily recognized. And better yet new features or more specifically, where a feature is new to a version will be called out and highlighted (these helpful highlighted snippets have been available for a while).
Check it out at http://docs.moodle.org/26/en/Main_page