Group-Office是一个基于Web的办公套件，它采用模块化设计，可扩展性强。主要功能有：用户管理、模块管理、email客户端、文件管理、日历、项目管理、网站管理以及客户关系管理等，可以与PDA和Outlook同步。Here\’s the list of changes in 4.0:- Complete new MVC PHP framework
– Extensive security audit by Cigitel.
– Users are stored in the addressbook too.
– Ticket groups for better permission management.
– Plupload used for file uploads
– Gnupg support dropped. SMIME still supported.
– Filesearch module for deep searching file content. (Linux only).
– Document workflow module.- File locking
– SabreDAV upgraded to 1.5.6
– Swift Mailer upgraded to 4.1.5
– Project tasks have a relation now and have a percentage complete field
– Photo support in sync.
– Billing module can create MS word and open-office invoices, quotes and orders.
– Billing module can handle purchase orders and stock