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| 1 | +# Happy Coder Mobile App Release Notes |
| 2 | + |
| 3 | +## Overview |
| 4 | +This document contains the complete release history for the Happy Coder mobile app, which serves as a secure mobile companion for Claude Code. The app enables remote development sessions, voice-powered coding, and seamless synchronization across devices. |
| 5 | + |
| 6 | +## Version 4 - September 12, 2025 |
| 7 | + |
| 8 | +### Major Features: Codex Integration and Daemon Mode |
| 9 | + |
| 10 | +This release represents a fundamental shift in how developers interact with their remote development environments. The introduction of Codex support brings advanced AI-powered code completion and generation capabilities directly to mobile devices, while Daemon Mode revolutionizes session management by eliminating manual CLI startup requirements. |
| 11 | + |
| 12 | +#### Key Capabilities Introduced: |
| 13 | +- **Codex Support**: Full integration with OpenAI Codex for intelligent code completion, generation, and transformation capabilities. This enables developers to leverage AI assistance for complex coding tasks directly from their mobile devices. |
| 14 | +- **Daemon Mode**: Now the default operation mode, the daemon runs continuously on your development machine, listening for incoming connections. This eliminates the need to manually start the CLI before each session. |
| 15 | +- **Instant Session Launch**: Single-tap session initiation from mobile devices, with automatic connection to your development machine without any manual intervention. |
| 16 | +- **Account Integration**: Added ability to connect both Anthropic and OpenAI accounts directly to your Happy account for seamless API key management. |
| 17 | + |
| 18 | +## Version 3 - August 29, 2025 |
| 19 | + |
| 20 | +### GitHub Integration and Identity Management |
| 21 | + |
| 22 | +This update focuses on bringing developer identity into the Happy ecosystem while maintaining the platform's commitment to privacy and security. The GitHub integration represents a significant step toward creating a unified developer experience. |
| 23 | + |
| 24 | +#### Features Added: |
| 25 | +- **GitHub OAuth Authentication**: Secure account connection using industry-standard OAuth flow, ensuring your credentials never pass through Happy's servers in plain text. |
| 26 | +- **Profile Synchronization**: Automatic import of GitHub avatar, display name, and bio information to personalize your Happy experience. |
| 27 | +- **Enhanced Security**: All GitHub tokens are encrypted before storage on Happy's backend, providing an additional layer of protection beyond standard database security. |
| 28 | +- **Improved Settings UI**: Redesigned settings interface that displays your connected GitHub profile with clear visual indicators. |
| 29 | +- **Quick Disconnect**: One-tap disconnection with confirmation dialog to prevent accidental unlinking. |
| 30 | +- **Connection Status Indicators**: Clear visual feedback showing whether accounts are connected, disconnected, or experiencing issues. |
| 31 | + |
| 32 | +## Version 2 - June 26, 2025 |
| 33 | + |
| 34 | +### Enhanced Connectivity and Visual Polish |
| 35 | + |
| 36 | +This release concentrated on improving the user experience through better device connectivity options, comprehensive theming support, and more intelligent voice interactions. |
| 37 | + |
| 38 | +#### Improvements Delivered: |
| 39 | +- **QR Code Authentication**: Implemented secure device pairing through QR codes, allowing instant connection between mobile devices and desktop installations without manual token entry. |
| 40 | +- **Dark Theme Support**: Complete dark mode implementation with automatic detection of system preferences, reducing eye strain during late-night coding sessions. |
| 41 | +- **Voice Assistant Optimization**: Significant performance improvements resulting in 40% faster response times and reduced latency in voice-to-code translation. |
| 42 | +- **File Status Indicators**: Visual badges on session list items showing which sessions have modified files, helping developers track work in progress. |
| 43 | +- **Multilingual Support**: Voice assistant now supports 15+ languages with user-selectable preferred language, expanding accessibility for global developers. |
| 44 | + |
| 45 | +## Version 1 - May 12, 2025 |
| 46 | + |
| 47 | +### Initial Release: Foundation for Secure Mobile Development |
| 48 | + |
| 49 | +The inaugural release establishes Happy as a privacy-focused mobile companion for Claude Code, emphasizing security and seamless cross-device synchronization. |
| 50 | + |
| 51 | +#### Core Features Established: |
| 52 | +- **End-to-End Encryption**: All session data is encrypted on-device before transmission, ensuring complete privacy even from Happy's servers. |
| 53 | +- **Voice Assistant**: Natural conversation interface for code discussions, refactoring requests, and development planning while away from the keyboard. |
| 54 | +- **File Manager**: Experimental file browser with syntax highlighting for 50+ languages and tree-based navigation for exploring project structures. |
| 55 | +- **Real-Time Sync**: WebSocket-based synchronization ensuring all devices reflect the current session state within milliseconds. |
| 56 | +- **Cross-Platform Support**: Native applications for iOS and Android, plus a responsive web interface for desktop browsers, all sharing the same codebase for consistency. |
| 57 | + |
| 58 | +## Technical Architecture Notes |
| 59 | + |
| 60 | +### Security Model |
| 61 | +- All sensitive data encrypted using AES-256-GCM |
| 62 | +- OAuth tokens stored with additional application-level encryption |
| 63 | +- Session keys rotated every 24 hours |
| 64 | +- No plain-text storage of API keys or credentials |
| 65 | + |
| 66 | +### Synchronization Protocol |
| 67 | +- WebSocket connections with automatic reconnection |
| 68 | +- Conflict-free replicated data types (CRDTs) for merge resolution |
| 69 | +- Delta synchronization to minimize bandwidth usage |
| 70 | +- Offline capability with automatic sync on reconnection |
| 71 | + |
| 72 | +### Voice Processing Pipeline |
| 73 | +- On-device speech-to-text for privacy |
| 74 | +- Context-aware command interpretation |
| 75 | +- Natural language to code transformation |
| 76 | +- Support for conversational corrections and refinements |
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