It's designed to be extended with custom written backend modules and frontend libraries for special functionality.
Here are some key features of "TYPO3":
· Impartial to hosting systems
· 50+ Localizations available
· Easy templating
· Flexible designs
· Simple site structure
· Intuitive AJAX drag & drop
· Multilingual
· Integrated search
· Powerful extension framework
· Large extension repository
· Community and commercial support
· Graphic installer
· Protected admin panel
· Multi-site management
· Granular permissions control
· Extensive documentation
· True WYSIWYG editing
· Built-in image editing
· Frontend editing
· Automatic caching
What's New in This Release: [ read full changelog ]
· Improving the File Abstraction Layer
· UI Improvements for the Extension Manager
· Use for PHP mysqli instead of "mysql" module
· Removed extension statictemplates
· Improved TCA load mechanism
· Install Tool: Environment Checks
· Install Tool: Environment ChecksExtbase: The rewritten property mapper is now the default mapper
· Fluid: Allow Fluid arrays only in ViewHelper arguments
· Extbase: Object persistence behaviour changed from implicit to explicit save