GNow Authentication Manager v1.2.0

Release Notes

Release Date: January 2025



🎉 Major Updates

Simplified Authentication Flow

• Removed email requirement - Users now only need their subscription key to authenticate
• Streamlined login process for faster access to ChatGPT and Sora platforms
• Reduced friction in the authentication experience

Enhanced Security Features

• Device Fingerprinting - Implemented advanced device identification system
• Canvas fingerprinting for unique device identification
• WebGL fingerprinting for enhanced security
• Persistent device tracking across sessions
• Automatic Session Validation - Background validation every 5 minutes
• Ensures subscription validity in real-time
• Automatic session termination on validation failure
• Protects against unauthorized access

Real-time Subscription Monitoring

• Live Subscription Status Display
• View remaining device slots
• Check subscription expiration date
• Monitor active/inactive status
• See subscription key (partially hidden for security)
• Automatic Updates - Status refreshes after each authentication

🔧 Technical Improvements

API Integration Updates

• Updated to latest API endpoints
• Authentication: /api/Auth/get-cookies
• Validation: /api/Auth/validate
• Full support for new CookiesResponse structure
• Enhanced error handling and user feedback

Cookie Management Enhancements

• Improved cookie parsing for better compatibility
• Support for numeric and string expirationDate formats
• Better handling of secure, httpOnly, and sameSite attributes
• More reliable cookie application across different scenarios

Cross-Browser Compatibility
- Maintained support for Chrome (Manifest V3) and Firefox
- Improved mobile browser support
- Enhanced Firefox Android compatibility

🛡️ Security Enhancements

• Secure Storage - Subscription keys stored securely in browser storage
• Domain Verification - Strict domain checking for chatgpt.com and sora.com
• Automatic Cleanup - Removes all cookies and session data on validation failure
• IP Tracking - Server-side IP logging for security monitoring

📱 User Experience Improvements

• Cleaner Interface - Removed unnecessary input fields
• Better Status Indicators - Clear visual feedback for authentication state
• Informative Messages - More descriptive error and success messages
• Responsive Design - Improved layout for different screen sizes

⚠️ Breaking Changes

• Email field removed from authentication - existing users need to re-authenticate with subscription key only
• Storage structure updated - previous authentica