E3 Firmware Download(Latest) Download Size: 205 MB Release Date: 2026-10-10 Version: 1.30 New Features: Added Pagination for Recording File List：Added pagination support to improve browsing and management of large numbers of recording files. Optimizations: Updated SRT Library to v1.5.7: Updated the underlying SRT library to version 1.5.7. Enhanced System Security： Web Authentication: Introduced a dual-token authentication mechanism using Access Tokens (1-hour validity) and Refresh Tokens (7-day validity) to enhance Web access security and session management. API Security: Strengthened parameter validation and access protection for system configuration and network management interfaces. ONVIF Security: Improved authentication and access control for ONVIF interfaces, enhanced protection of sensitive user information, and optimized handling of malformed requests. System Service Security: Enhanced SSH service security configurations and key management, and strengthened protection for critical system operations such as time zone configuration. Bug Fixes: Fixed an issue where configuration files could not be exported if their timestamps were earlier than 1980. Fixed an issue that caused intermittent audio stuttering during RTMP streaming when using a USB video source.