The Asset PipelineThis guide explains how to handle essential asset management tasks.After reading this guide, you will know: What is an asset pipeline. The main features of Propshaft, and how to set it up. How to migrate from Sprockets to Propshaft. How to use other libraries for more advanced asset management.| Ruby on Rails Guides
Ruby on Rails 6.0 Release NotesHighlights in Rails 6.0: Action Mailbox Action Text Parallel Testing Action Cable Testing These release notes cover only the major changes. To learn about various bug fixes and changes, please refer to the changelogs or check out the list of commits in the main Rails repository on GitHub.| Ruby on Rails Guides
Autoloading and Reloading ConstantsThis guide documents how autoloading and reloading works in zeitwerk mode.After reading this guide, you will know: Related Rails configuration Project structure Autoloading, reloading, and eager loading Single Table Inheritance And more| Ruby on Rails Guides
Testing Rails ApplicationsThis guide covers built-in mechanisms in Rails for testing your application.After reading this guide, you will know: Rails testing terminology. How to write unit, functional, integration, and system tests for your application. Other popular testing approaches and plugins.| Ruby on Rails Guides
Configuring Rails ApplicationsThis guide covers the configuration and initialization features available to Rails applications.After reading this guide, you will know: How to adjust the behavior of your Rails applications. How to add additional code to be run at application start time.| Ruby on Rails Guides
