How to write templates for Plone 4

Como escrever templates para o Plone 4 - Plone 4 has some improvements in templates. This is an overview of the most important ones, and what you need to know when updating your existing templates.

• Macros, slots, viewlets and other monsters. 
• Viewlet managers.
• Templates for an object's view.
• General templates other than objects' views.
• Related items.
• Disabling columns.
• Removal of redundant IDs and classes for the content area.
• Portal status message.

http://plone.org/documentation/kb/how-to-write-templates-for-plone-4