# Changelog

All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## [Unreleased]

### Added
- Comprehensive documentation improvements
- JSDoc comments for all public methods
- Advanced troubleshooting guide
- Contributing guidelines
- Performance optimization tips

## [1.2.0] - 2024-01-15

### Added
- 🔒 **Security Enhancements**
  - API key validation with strict format requirements
  - Input sanitization to prevent injection attacks
  - File upload security with type, size, and signature validation
  - URL validation with HTTPS-only and SSRF protection
  - Enhanced error handling with secure error messages

### Changed
- Improved error messages for better debugging
- Enhanced API key validation logic
- Strengthened file upload validation

### Security
- Added protection against SSRF attacks
- Implemented secure file type validation
- Enhanced input sanitization across all operations
- Improved API key security validation

## [1.1.0] - 2024-01-10

### Added
- ⚡ **Performance Optimizations**
  - Enhanced pagination support for large datasets
  - Improved memory management for file operations
  - Request batching for bulk operations
  - Progress logging for long-running operations
  - Optimized API request handling

### Changed
- Improved pagination logic for better performance
- Enhanced memory usage for large file processing
- Optimized batch processing operations

### Fixed
- Memory leaks in large dataset operations
- Pagination issues with large result sets
- Performance bottlenecks in bulk operations

## [1.0.0] - 2024-01-05

### Added
- 🎯 **Enhanced User Experience**
  - Intuitive submitter management UI
  - Smart template selection with search and filtering
  - Improved field value management
  - Better error messages and validation
  - Enhanced form handling

### Changed
- Redesigned submitter input interface
- Improved template selection workflow
- Enhanced field value input handling
- Better validation and error reporting

### Fixed
- UI responsiveness issues
- Form validation edge cases
- Template loading performance

## [0.9.0] - 2024-01-01

### Added
- 🤖 **AI Integration**
  - AI-powered document generation
  - Support for 12 languages
  - Multiple document styles (Formal, Friendly, Simple)
  - Customizable AI prompts
  - Smart document type detection

### Changed
- Enhanced AI tool resource with better options
- Improved language support for generated documents
- Better AI prompt handling

## [0.8.0] - 2023-12-20

### Added
- 🔧 **Code Quality Improvements**
  - Comprehensive test suite with 43 test cases
  - TypeScript strict mode compliance
  - ESLint and Prettier configuration
  - Automated testing pipeline
  - Code coverage reporting

### Changed
- Migrated to TypeScript strict mode
- Improved code organization and structure
- Enhanced error handling throughout the codebase

### Fixed
- TypeScript compilation errors
- Code style inconsistencies
- Test reliability issues

## [0.7.0] - 2023-12-15

### Added
- 📋 **Template Management**
  - Create templates from PDF, DOCX, and HTML
  - Template cloning and merging capabilities
  - Advanced template filtering and search
  - Template archiving and organization
  - Bulk template operations

### Changed
- Enhanced template creation workflow
- Improved template management UI
- Better template organization features

## [0.6.0] - 2023-12-10

### Added
- 📄 **Submission Management**
  - Create submissions from templates
  - Direct PDF and HTML submission creation
  - Advanced submission filtering
  - Document download capabilities
  - Submission archiving

### Changed
- Improved submission creation process
- Enhanced document handling
- Better submission status tracking

## [0.5.0] - 2023-12-05

### Added
- 👥 **Submitter Management**
  - Comprehensive submitter operations
  - Field value management
  - Submitter filtering and search
  - Bulk submitter operations

### Changed
- Enhanced submitter workflow
- Improved field value handling
- Better submitter organization

## [0.4.0] - 2023-12-01

### Added
- 📊 **Form Analytics**
  - Form start tracking
  - Form view monitoring
  - Analytics data collection
  - Event-based insights

### Changed
- Enhanced form tracking capabilities
- Improved analytics data structure

## [0.3.0] - 2023-11-25

### Added
- 🔔 **Webhook Trigger**
  - Real-time event notifications
  - Submission completion triggers
  - Form interaction triggers
  - Configurable webhook endpoints
  - Event filtering capabilities

### Changed
- Enhanced trigger node functionality
- Improved webhook configuration
- Better event handling

## [0.2.0] - 2023-11-20

### Added
- 🔐 **Authentication System**
  - Production and test API key support
  - Environment-based configuration
  - Secure credential management
  - API endpoint customization

### Changed
- Enhanced security for API communications
- Improved credential validation
- Better environment handling

## [0.1.0] - 2023-11-15

### Added
- 🚀 **Initial Release**
  - Basic DocuSeal API integration
  - Core template operations
  - Basic submission handling
  - n8n community node structure
  - Initial documentation

### Features
- Template CRUD operations
- Submission creation and management
- Basic API authentication
- n8n workflow integration

---

## Legend

- 🚀 **Major Features**: Significant new functionality
- ⚡ **Performance**: Speed and efficiency improvements
- 🔒 **Security**: Security enhancements and fixes
- 🎯 **UX**: User experience improvements
- 🤖 **AI**: Artificial intelligence features
- 🔧 **Quality**: Code quality and testing improvements
- 📋 **Templates**: Template-related features
- 📄 **Submissions**: Submission-related features
- 👥 **Submitters**: Submitter management features
- 📊 **Analytics**: Analytics and tracking features
- 🔔 **Triggers**: Webhook and trigger features
- 🔐 **Auth**: Authentication and security features

## Migration Guides

### Upgrading to v1.2.0

**Security Enhancements**
- API keys now require minimum 20 characters
- File uploads are validated for type and size
- URLs must use HTTPS protocol
- Input sanitization may affect special characters

**Action Required:**
- Verify your API keys meet the new format requirements
- Update any workflows using HTTP URLs to HTTPS
- Review file upload operations for size limits (50MB max)

### Upgrading to v1.1.0

**Performance Improvements**
- Pagination is now automatically handled for large datasets
- Memory usage is optimized for file operations
- Batch operations are more efficient

**No Breaking Changes**
- All existing workflows will continue to work
- Performance improvements are automatic

### Upgrading to v1.0.0

**UI Enhancements**
- Submitter management has a new interface
- Template selection includes search functionality
- Field value management is simplified

**Migration Steps:**
1. Review workflows using submitter arrays
2. Update any custom field value configurations
3. Test template selection in existing workflows

## Support

For questions about specific versions or migration help:
- Check the [troubleshooting guide](./README.md#troubleshooting)
- Open an [issue](https://github.com/serkanhaslak/n8n-nodes-docuseal/issues)
- Join the [discussion](https://github.com/serkanhaslak/n8n-nodes-docuseal/discussions)