Version 4 supported
This version of Silverstripe CMS is still supported though will not receive any additional features. Go to documentation for the most recent stable version.

Extending Silverstripe CMS

No two applications are ever going to be the same and Silverstripe CMS is built with this in mind. The core framework includes common functionality and default behaviors easily complemented with add-ons such as modules, widgets and themes.

Silverstripe CMS includes a myriad of extension API's such as Extension Hooks and support for programming patterns such as Dependency Injection. Allowing developers to tailor the framework to their needs without modifying the core framework.

Modules
Extend core functionality with modules.
Extensions
Extensions and DataExtensions let you modify and augment objects transparently.
Shortcodes
Flexible content embedding
Dependency Injection
Introduction to using Dependency Injection within Silverstripe CMS.
Aspects
Introduction to using aspect-oriented programming with Silverstripe CMS.
Custom Templates
Override templates from core and modules in your application

How to's

How to Publish a Silverstripe CMS module
Have you created some work you think others can use? Turn it into a module and share it.
How to Create a Google Maps Shortcode
Learn how to embed a Google map in the WYSIWYG editor with a simple shortcode
Track member logins
Keep a log in the database of who logs in and when
Edit on Github