How it works in Drupal 8
When planning for Drupal 8, the so-called Configuration Management Initiative was led by Greg Dunlap in order to make developers' lives easier. Configuration still lives in the database, but can be easily exported to YAML text files. You can now deploy a configuration from one environment to another (between cloned instances of the same site). This capability replaces the need for various contributed modules such as Features, Strongarm, and Context.
This book will teach you everything you need to know about Drupal 8's brand new configuration system. We hope you enjoy it.