The official documentation is at: http://docs.alfresco.com
Alfresco Share Feature List
The feature list identifies all the Alfresco Share Labs 3 features, identifying which of these features are available in Labs 3 Stable.
For instructions on how to install Alfresco Labs 3 Stable, refer to Download Labs.
(optional) For those using Web Studio, configuration information is provided on the Web Studio Configuration page.
(optional) For those wishing to use the MediaWiki integration, see Alfresco MediaWiki AMP Installation Instructions
The Alfresco MediaWiki AMP can only be installed on Alfresco installations that use MySQL
The Simple Edit option in the Share client supports Windows only and requires Internet Explorer 6 or higher to be installed on the client machine.
To use the Simple Edit option, you must install the SharePoint Protocol Support AMP.
There are known issues with upgrading existing PostgreSQL repositories. Patches will be made as soon as available.