macOS Agent Release Notes
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      macOS Stable v2.X

      Zorus macOS Agent Release Notes for versions 2.X

      macOS Stable 2.4.7.0 - June 25, 2025

      Bug Fixes

      • Fixed an issue where DNS timeouts could occur due to improper handling of IPv6-to-IPv4 fallback during network degradation. The system now correctly cancels flows and connections when either IPv4 or IPv6 connectivity is lost, improving reliability in mixed or transitioning network environments.

      macOS Stable 2.4.2.0 - April 16, 2025

      Interface Improvements

      • Feature Flag for DNS Upstream Timeouts: Added a new feature flag to allow partners to control behavior around DNS upstream timeouts. This provides more flexibility and better diagnostics in environments where upstream DNS resolution delays may be impacting agent behavior.

      • Removed ‘Block Traffic on Failure’ When Agent is Disconnected: This logic has been removed to prevent unnecessary traffic blocks during brief disconnects. This change is aimed at improving DNS reliability and avoiding potential connectivity issues tied to agent disconnection events.

      Why it Matters: These updates address a reported symptom from some partners where DNS issues may have been caused by timeouts or aggressive failure handling logic. By relaxing this behavior and adding new configurability, this release improves resilience and reduces the chance of DNS-related disruptions.

      macOS Stable 2.3.1.0 - March 20, 2025

      macOS Agent Update – Enhanced Resiliency & Performance

      This release enhances reliability and overall performance, ensuring a smoother and more consistent experience across deployments.

      • Sleep & Resiliency Enhancements – Optimized handling of sleep/wake cycles to maintain stable DNS resolution, reducing disruptions reported by partners.
      • Performance Boost – Key operations now run on dedicated threads, improving efficiency and responsiveness, particularly on lower-end devices.

      macOS Stable 2.0.9.0 - September 25, 2024

      macOS Agent Promoted to Stable! Now deploying DNSPrecheck™ to macOS for enhanced pre-DNS security and content filtering. 

      Interface Improvements

      • Optimized the uninstallation process to ensure the agent is properly deregistered and removed from the Portal when uninstalled

      Bug Fixes

      • Fixed an issue where mDNSResponder could inadvertently establish connections to DNS over HTTPS (DoH) or DNS over TLS (DoT) after the device resumed from sleep, which resulted in disruptions to traffic flow and filtering capabilities

      • Fixed an issue related to the Block Page certificate for devices running iOS 15 Sequoia