# MCR Box Changelog ## Version 1.4.0 - December 20, 2025 This release introduces audio VU meters with LUFS support and a new tablet-optimized compact view. ### New Features - **Audio VU Meters**: Real-time audio level metering with LUFS support in preview panels - **Tablet Compact View**: New PVW/PGM workflow optimized for tablet and touch interfaces - **4K Resolution Support**: Buffer sizes now support up to 4K resolution ### Improvements - **Dynamic Resolution Changes**: Encoder now handles resolution changes dynamically without preview failures - **Dedicated Audio Metering Thread**: Audio metering runs in dedicated thread for better performance - **Smaller Package Size**: Ubuntu CUDA package reduced from 353 MB to 95 MB ### Bug Fixes - **Preview After Resolution Change**: Fixed preview failure after dynamic resolution changes - **Audio Meter Thread**: Use detach instead of blocking join for audio meter thread - **Graphics Sidebar**: Restored fixed width to graphics sidebar in GraphicsPanel - **Encoder Preview Tearing**: Fixed encoder preview tearing and UI source switch updates - **CSS Scoping**: Fixed tablet CSS classes to avoid conflicts with GraphicsPanel --- ## Version 1.3.7 - December 16, 2025 This release focuses on stream continuity and reliability with defense-in-depth watchdog systems. ### New Features - **Configurable Watchdog Timeouts**: All watchdog thresholds are now configurable with sensible defaults - **Emergency Audio**: Automatic emergency audio insertion when stream issues are detected - **Defense-in-Depth Watchdogs**: Multiple layers of watchdog protection for maximum stream continuity - **Output Watchdog**: New global processor output watchdog monitors encoder health - **Target Connection Status**: Track and display target connection status with edit functionality ### Stability & Reliability - **Encoder Freeze Prevention**: Video appsrc now uses non-blocking mode to prevent encoder freeze - **Enhanced Buffer Reset**: Watchdog forces buffer reset after 5 seconds of stuck output - **Global Processor Recovery**: Fixed recovery after failed source switch operations - **Encoder Reset State**: Prevented encoder from getting stuck in reset-pending state ### Bug Fixes - **RTMP Dynamic Targets**: Dynamic RTMP targets now correctly use FLV muxing - **Preview Reconnect Loop**: Fixed infinite reconnect loop in preview windows - **MPEG-TS Byte-Stream**: Added caps filter for vtdec to handle MPEG-TS byte-stream format - **Debug Logging**: Improved debug logging filter and source restart behavior --- ## Version 1.3.0 - December 12, 2025 This release includes significant stability improvements, new features, and enhanced failover reliability. ### New Features - **SRT Encryption for Output Targets**: Added optional encryption for SRT outputs with passphrase and key length (AES-128/192/256) configuration in the UI - **WebSocket Preview Auto-Reconnect**: Preview windows now automatically reconnect with a frame watchdog that detects stalled connections and recovers automatically - **UI Error Recovery**: Added ErrorBoundary with auto-refresh for white screen issues, plus blank screen detection that auto-recovers - **Unicast UDP/RTP Sources**: Support for unicast UDP/RTP sources with network interface selection - **Source Stats Tooltip**: Source statistics now shown in hover tooltip for cleaner UI - **In-App User Guide**: Comprehensive help documentation accessible via F1 key ### Stability & Reliability - **Failover on Startup**: P1 (priority 1) sources in breach during startup now correctly trigger failover to backup sources - **LIVE Mode Trigger**: Switching to LIVE mode immediately evaluates active source for failover - **Production Phase from Config**: Saved production phase (LIVE/PRE-SHOW) now correctly applied when loading configurations - **PTS Discontinuity Detection**: Source processor detects and rebuilds pipeline on PTS discontinuity (handles SRT reconnections) - **Encoder Startup Race Condition**: Fixed race condition in encoder startup and PTS handling on source reconnect - **SRT Listener Resilience**: SRT listener workers now rebuild pipeline on error and stay alive after recovery - **Read/Write Locking**: Refactored orchestrator to use shared_mutex, preventing UI deadlocks during long operations ### Licensing & Authentication - **License Cache Fix (macOS)**: Fixed license caching on macOS DMG installs - tokens now persist across restarts - **Remember Me Feature**: Added "Remember Me" option for 30-day persistent sessions - **Stable Machine ID**: Improved machine fingerprinting to prioritize built-in network interfaces, preventing license invalidation - **Trial Timer Fix**: Trial timer now correctly stops when a valid license is applied - **File Sources**: File sources no longer require Pro license ### Graphics Engine - **Graphics Framerate Fix**: Resolved low framerate issues in both live and primed graphics rendering - **Template Path Fix (macOS)**: OGraf templates now work correctly on read-only DMG bundles - **Priming Assets Fix**: Fixed primed graphics assets not being created correctly - **Refresh Button**: Added refresh button to reload assets/templates/presets without restart - **Template Preview**: Fixed template preview cutoff in graphics panel ### UI Improvements - **System Settings Tabs**: Reorganized system settings into tabbed interface - **Processing Page Tabs**: Reorganized processing page with side menu navigation - **Vector Icons**: Replaced all emojis with inline SVG icons for consistent rendering - **EULA/Licenses Modal**: Show EULA and Third-Party Licenses in modal dialogs - **macOS App Bundle**: Proper .app bundle with signed DMG, notarization, and dock icon ### Bug Fixes - **Config Loading**: Fixed URL decoding bug on macOS config loading - **Dynamic Targets**: Fixed targets not being cleared on session end - **Worker Synchronization**: Replaced fixed delays with proper worker-ready synchronization - **Platform-Aware Storage**: Use AppPaths for correct data locations across platforms - **No-Signal Alerts**: Network source alerts now respect threshold configuration - **Protocol License Check**: Fixed protocol extraction from URI before license check ### Platform Support - **Ubuntu 24.04**: Primary production platform with full GPU support - **macOS**: Full support with signed/notarized DMG installer - **Amazon Linux 2023**: Support discontinued --- ## Version 1.2.0 - December 7, 2025 Major release with session-based configuration management and EULA system. ### New Features - **Session-Based Config Management**: Clean server startup with config selector, multiple named configurations - **EULA System**: First-launch license agreement with acceptance flow - **License Tier Enforcement**: Full feature gating based on license tier (Free/Pro) - **Structured Logging**: Timestamps, thread IDs, JSON/SYSLOG formats - **HEVC/H.265 Encoding**: Full GPU support for HEVC encoding ### Bug Fixes - **Config Security**: JWT secret moved to protected file - **Cross-Platform Paths**: AppPaths class for macOS DMG, Linux XDG, Windows compatibility --- ## Version 1.0.0-beta - November 16, 2024 Initial public beta release. ### Features - Frame-Accurate Switching with GStreamer-powered engine - Multi-Protocol Support: SRT, RTMP, UDP/RTP, MPEG-TS - Real-Time Monitoring with WebSocket-based previews - Intelligent Normalization for framerate and resolution - Configuration Persistence via Web UI - Embedded Web UI (HTTPS port 8443) ### Platform Support - macOS (Apple Silicon) - Ubuntu (via manual build) --- ## Feedback Please report issues and feature requests on GitHub: https://github.com/yarontorbaty/mcrbox/issues For support, visit: https://mcrbox.com/contact