SourceForge Enterprise Edition (SFEE), which has just hit version 4.1, is built on J2EE architecture and includes a service oriented architecture (define) with
an open API (define) and SDK (define).
But there's a twist to the release this time. SourceForge Enterprise 4.1 is not based on the open source software that runs sourceforge.net. Instead, a company
spokesman confirmed, the 4.x generation of SFEE is a complete break from SF.net."