This document summarizes the new features and improvements in Performance Vision version 3.3. Key updates include upgrading the operating system to the latest stable Debian release, improving performance through better handling of TCP keepalives and updated SSL libraries, adding over 250 new fields for custom filters, and making the system configuration update process transactional using Pulsar. The upgrade to version 3.3 involves a two-step process and may take a few minutes per probe.