Access control support: Password protected paths and files are now supported (HTTP Authentication); Users and groups management: Used to define access control rules; SSI support: Standard directives are supported (#config, #echo, #exec, #flastmod, #fsize, and #include); Custom error pages: Entirely configurable and can even be generated by SSI pages or CGI scripts; Enhanced CGI execution layer (with support for legacy DOS CGI applications on Windows); Updated server engine; Updated documentation.