This documentation is included with the current stable version of Privoxy, v.3.0.0.
Integrated browser based configuration and control utility at http://config.privoxy.org/ (shortcut: http://p.p/). Browser-based tracing of rule and filter effects. Remote toggling.
Web page content filtering (removes banners based on size, invisible "web-bugs", JavaScript and HTML annoyances, pop-up windows, etc.)
Modularized configuration that allows for standard settings and user settings to reside in separate files, so that installing updated actions files won't overwrite individual user settings.
HTTP/1.1 compliant (but not all optional 1.1 features are supported).
Support for Perl Compatible Regular Expressions in the configuration files, and generally a more sophisticated and flexible configuration syntax over previous versions.
Improved cookie management features (e.g. session based cookies).
GIF de-animation.
Bypass many click-tracking scripts (avoids script redirection).
Multi-threaded (POSIX and native threads).
User-customizable HTML templates for all proxy-generated pages (e.g. "blocked" page).
Auto-detection and re-reading of config file changes.
Improved signal handling, and a true daemon mode (Unix).
Every feature now controllable on a per-site or per-location basis, configuration more powerful and versatile over-all.
Many smaller new features added, limitations and bugs removed, and security holes fixed.