Still not 100% up, especially for smaller projects. Code::Blocks, Dev C++, Lazarus IDE and PortableApps downloads are available, while small open source utilities like AkelPad Text Editor and ASuite (menu) aren't.
(Jul 20, 2015)
"SourceForge developer pages backed by Apache Allura (tickets, wiki, forums, mailing list archives) are back online, along with SourceForge directory pages and downloads restored to service previously. Work continues 24Ã—7 on restoration of SCM (git, hg, bzr, svn, cvs) services, Project Web/DB/Shell services, file upload service, and Mailing List services.