Search contents and preview ODT (openoffice.org Writer), PDF, MSWord, Text, HTML documents - basic preview for ODS (openoffice.org Calc). (Ferret used for indexing, just like boxroom)
Support for localization, Italian translations are provided, (uses rails "Globalize" plugin)
Optional SSL protocol for secure communication
Optional mod_secdownload support for lighttpd, which delegates the webserver to download content. Much better than tying up the application itself. Without mod_secdowload it's still possible to serve randomized or plain static links.
Optional thumbnail generation for images (uses Imagemagick with Minimagick or Rmagick)
Multiple documents and folders can be tagged (uses rails "Acts as taggable on steroids" plugin), moved, deleted...
Advanced search page with filters
Basic import of email messages (POP3, POP3-SSL) and attachments
Batch add files and/or folders already present in the server's filesystem
Single ZIP archives can be optionally expanded, respecting the archive structure
Optional antivirus scan of incoming files
Basic revision history
Optional rendering of content right inside the browser, if the file format is suitable (images, html, xml...)
Basic size limit for uploaded files
Some care for HTTP requests (no GET requests for deletion of files...)
Activity logs (that is, changes made to files managed by doxroom) with related cleanup task
Problems compared to Boxroom (0.6.2)
Slightly slower (i18n affects page rendering). When mod_secdownload or static files download is enabled the overall performance should easily surpass boxroom, instead.
Server can't run on windows (windows clients should be fine)