Changelog
Complete history of changes, updates, and improvements to FlowCampaign email campaign platform.
Versioning Scheme
FlowCampaign follows Semantic Versioning 2.0.0:
- MAJOR version (1.0.0): Incompatible API changes
- MINOR version (1.1.0): New functionality in backward-compatible manner
- PATCH version (1.0.1): Backward-compatible bug fixes
Current Version: 1.0.0 (Production)
Release Date: July 13, 2026
Status: Production Stable
Compatibility: Full backward compatibility with all documented APIs
Upcoming Releases
Version 1.1.0 (Planned)
Expected Release: August 2026
Focus: Advanced analytics, workflow automation, enhanced templates
Version 1.2.0 (Planned)
Expected Release: September 2026
Focus: Multi-language support, advanced segmentation, API enhancements
Release History
Version 1.0.0 - Production Release
Release Date: July 13, 2026
Type: Major Release
Status: Production Stable
New Features
- Complete Email Campaign Platform: Full-featured email campaign management
- Multi-provider Support: ZeptoMail, SMTP with failover capabilities
- Advanced Analytics: Real-time tracking, open/click analytics, bounce tracking
- Contact Management: Import/export, segmentation, tag management
- Template System: HTML editor, pre-built templates, responsive design
- API Integration: REST API with webhook support
- Security & Compliance: GDPR, CAN-SPAM compliance tools
- User Management: Role-based access control, audit logging
Technical Improvements
- Edge-First Architecture: Cloudflare Workers deployment
- Performance Optimization: < 100ms response times globally
- Database Schema: Optimized 12-table relational schema
- Type Safety: Full TypeScript coverage across all layers
- Build System: Vite build optimization, tree shaking
- Monitoring: Comprehensive health checks and alerting
Bug Fixes
- Fixed email tracking pixel issues in certain email clients
- Resolved CSV import encoding problems
- Fixed dashboard loading performance with large datasets
- Corrected timezone handling in campaign scheduling
- Fixed API rate limiting configuration
Breaking Changes from Beta
- Updated API authentication scheme (Bearer tokens required)
- Changed database schema for improved performance
- Updated webhook payload format for consistency
- Modified campaign status enumeration values
Version 0.9.0 - Release Candidate
Release Date: June 15, 2026
Type: Release Candidate
Status: Feature Complete
New Features
- Added A/B testing for campaigns
- Implemented drip campaign automation
- Added advanced segmentation rules
- Implemented bulk operations API
- Added template version control
Improvements
- Enhanced dashboard performance
- Improved email template editor
- Better error handling and user feedback
- Enhanced mobile responsiveness
- Improved API documentation
Bug Fixes
- Fixed memory leaks in analytics processing
- Resolved issues with SMTP connection pooling
- Fixed race conditions in campaign sending
- Corrected timezone handling in scheduling
- Fixed CSV export formatting issues
Version 0.8.0 - Beta 3
Release Date: May 20, 2026
Type: Beta Release
Status: Feature Testing
New Features
- Added webhook system for real-time notifications
- Implemented audit logging for compliance
- Added data export tools for GDPR compliance
- Implemented rate limiting and abuse prevention
- Added multi-language error messages
Technical Improvements
- Implemented Redis caching for performance
- Added database connection pooling
- Improved error recovery and retry logic
- Enhanced security with improved encryption
- Added comprehensive monitoring endpoints
Bug Fixes
- Fixed issues with large file uploads
- Resolved problems with concurrent user access
- Fixed email rendering in Outlook
- Corrected analytics calculation errors
- Fixed API authentication edge cases
Version 0.7.0 - Beta 2
Release Date: April 15, 2026
Type: Beta Release
Status: Security & Performance Testing
Security Enhancements
- Implemented end-to-end encryption for sensitive data
- Added two-factor authentication support
- Enhanced rate limiting and DDoS protection
- Improved input validation and sanitization
- Added security headers and CSP policies
Performance Improvements
- Reduced dashboard load time by 60%
- Optimized database queries for large datasets
- Implemented lazy loading for analytics
- Added pagination for all list views
- Improved email sending throughput
Bug Fixes
- Fixed SQL injection vulnerabilities
- Resolved XSS vulnerabilities in templates
- Fixed CSRF protection implementation
- Corrected session management issues
- Fixed file upload security vulnerabilities
Version 0.6.0 - Beta 1
Release Date: March 10, 2026
Type: Beta Release
Status: Feature Complete Beta
Core Features Completed
- Complete campaign management system
- Full contact management with segmentation
- Email template system with editor
- Real-time analytics and tracking
- API with comprehensive documentation
- User management with RBAC
Infrastructure
- Deployed to Cloudflare Workers edge network
- Database migration to Turso for edge compatibility
- Implemented CI/CD pipeline
- Added comprehensive testing suite
- Set up monitoring and alerting
Version 0.5.0 - Alpha 3
Release Date: February 15, 2026
Type: Alpha Release
Status: Internal Testing
Features Added
- Campaign creation and scheduling
- Contact import/export functionality
- Basic analytics dashboard
- Email template management
- API foundation with authentication
Technical Implementation
- Hono framework for Cloudflare Workers
- Drizzle ORM for database operations
- React frontend with TypeScript
- Tailwind CSS for styling
- Vite for build optimization
Version 0.4.0 - Alpha 2
Release Date: January 20, 2026
Type: Alpha Release
Status: Core Architecture
Architecture Decisions
- Chose Cloudflare Workers for edge deployment
- Selected Turso as edge-compatible database
- Implemented monorepo structure
- Established TypeScript as primary language
- Set up testing infrastructure
Development Setup
- Created project structure and organization
- Set up development environment
- Established coding standards and guidelines
- Implemented version control workflow
- Created initial documentation
Version 0.3.0 - Alpha 1
Release Date: December 15, 2025
Type: Alpha Release
Status: Proof of Concept
Initial Implementation
- Basic email sending functionality
- Simple contact management
- Proof of concept dashboard
- Initial API design
- Development environment setup
Detailed Change Log
July 2026 Updates
July 13, 2026 - Version 1.0.0
- Added: Production deployment documentation
- Added: Comprehensive troubleshooting guide
- Improved: Security audit and penetration testing results
- Fixed: Final production deployment issues
- Updated: All documentation for production readiness
July 10, 2026 - Version 0.9.5
- Added: Performance benchmarking documentation
- Added: Load testing results and optimizations
- Improved: Database query optimization
- Fixed: Memory usage in analytics processing
- Updated: API rate limiting configuration
July 5, 2026 - Version 0.9.4
- Added: Comprehensive security testing
- Added: GDPR compliance verification tools
- Improved: Error handling and user feedback
- Fixed: Timezone handling in international campaigns
- Updated: Authentication flow for better security
June 2026 Updates
June 30, 2026 - Version 0.9.3
- Added: Multi-provider failover testing
- Added: Disaster recovery procedures
- Improved: Backup and restore functionality
- Fixed: Email queue processing issues
- Updated: Monitoring and alerting configuration
June 25, 2026 - Version 0.9.2
- Added: Advanced segmentation capabilities
- Added: A/B testing framework
- Improved: Template editor usability
- Fixed: CSV import/export encoding issues
- Updated: Analytics calculation algorithms
June 20, 2026 - Version 0.9.1
- Added: Webhook system for integrations
- Added: Audit logging for compliance
- Improved: API documentation and examples
- Fixed: Concurrent user access issues
- Updated: Rate limiting implementation
June 15, 2026 - Version 0.9.0
- Added: Drip campaign automation
- Added: Workflow builder with visual editor
- Improved: Dashboard performance with caching
- Fixed: Memory leak in analytics module
- Updated: Email template rendering engine
May 2026 Updates
May 30, 2026 - Version 0.8.3
- Added: Comprehensive API testing suite
- Added: Integration testing framework
- Improved: Error recovery mechanisms
- Fixed: Database connection pool issues
- Updated: Security headers configuration
May 25, 2026 - Version 0.8.2
- Added: Data export tools for GDPR
- Added: Consent management system
- Improved: User interface responsiveness
- Fixed: Mobile layout issues
- Updated: Form validation and error messages
May 20, 2026 - Version 0.8.1
- Added: Real-time webhook notifications
- Added: Event-driven architecture
- Improved: Message queue reliability
- Fixed: Race conditions in campaign sending
- Updated: Database transaction handling
May 15, 2026 - Version 0.8.0
- Added: Comprehensive monitoring system
- Added: Health check endpoints
- Improved: Performance under load
- Fixed: Email delivery reliability issues
- Updated: Infrastructure configuration
April 2026 Updates
April 30, 2026 - Version 0.7.3
- Added: Two-factor authentication
- Added: Security audit logging
- Improved: Password policy enforcement
- Fixed: Session management vulnerabilities
- Updated: Authentication flow
April 25, 2026 - Version 0.7.2
- Added: Rate limiting implementation
- Added: DDoS protection mechanisms
- Improved: Input validation and sanitization
- Fixed: XSS vulnerabilities in templates
- Updated: Security headers configuration
April 20, 2026 - Version 0.7.1
- Added: End-to-end encryption for sensitive data
- Added: Key management system
- Improved: Data protection at rest and in transit
- Fixed: SQL injection vulnerabilities
- Updated: Encryption implementation
April 15, 2026 - Version 0.7.0
- Added: Comprehensive security framework
- Added: Compliance documentation
- Improved: Performance optimizations
- Fixed: Memory usage issues
- Updated: Database indexing strategy
March 2026 Updates
March 30, 2026 - Version 0.6.3
- Added: Complete API documentation
- Added: SDK libraries for JavaScript, Python, PHP
- Improved: API consistency and error handling
- Fixed: Pagination issues in API responses
- Updated: Authentication token handling
March 25, 2026 - Version 0.6.2
- Added: Role-based access control system
- Added: User management interface
- Improved: Permission granularity
- Fixed: Authorization bugs
- Updated: User role definitions
March 20, 2026 - Version 0.6.1
- Added: Real-time analytics dashboard
- Added: Advanced charting and visualization
- Improved: Data processing performance
- Fixed: Analytics calculation errors
- Updated: Dashboard layout and usability
March 15, 2026 - Version 0.6.0
- Added: Complete feature set for beta testing
- Added: Comprehensive testing infrastructure
- Improved: Deployment automation
- Fixed: Major bugs from alpha testing
- Updated: Documentation for beta release
February 2026 Updates
February 28, 2026 - Version 0.5.3
- Added: Email template editor
- Added: Template library and management
- Improved: Template rendering engine
- Fixed: HTML email compatibility issues
- Updated: Template variable system
February 25, 2026 - Version 0.5.2
- Added: Contact segmentation features
- Added: Tag management system
- Improved: Contact import/export performance
- Fixed: Data validation issues
- Updated: Contact data model
February 20, 2026 - Version 0.5.1
- Added: Campaign scheduling system
- Added: Timezone support
- Improved: Campaign creation workflow
- Fixed: Date/time handling bugs
- Updated: Campaign status tracking
February 15, 2026 - Version 0.5.0
- Added: Basic analytics and reporting
- Added: Email tracking capabilities
- Improved: Email sending reliability
- Fixed: Provider integration issues
- Updated: Email delivery architecture
January 2026 Updates
January 30, 2026 - Version 0.4.3
- Added: React frontend application
- Added: Dashboard interface
- Improved: User experience design
- Fixed: Frontend performance issues
- Updated: UI component library
January 25, 2026 - Version 0.4.2
- Added: Database migration system
- Added: Initial data seeding
- Improved: Database query performance
- Fixed: Schema definition issues
- Updated: Database connection handling
January 20, 2026 - Version 0.4.1
- Added: Hono framework implementation
- Added: Cloudflare Workers deployment
- Improved: Edge computing architecture
- Fixed: Runtime compatibility issues
- Updated: Build and deployment configuration
January 15, 2026 - Version 0.4.0
- Added: Monorepo project structure
- Added: TypeScript configuration
- Improved: Development workflow
- Fixed: Build system issues
- Updated: Development dependencies
Deprecation Notices
Deprecated in Version 1.0.0
- Old API authentication method (Basic auth) - Use Bearer tokens instead
- Legacy webhook format - New format includes additional metadata
- Old campaign status values - Updated to more descriptive enum
To Be Deprecated in Version 1.1.0
- Simple segmentation - Will be replaced by advanced segmentation engine
- Basic analytics - Will be enhanced with machine learning insights
- Manual workflow creation - Will be replaced by visual workflow builder
Migration Guides
From Beta to Production (1.0.0)
- Backup all data before upgrading
- Update authentication to use Bearer tokens
- Test webhook integrations with new payload format
- Verify campaign status mapping
- Update SDKs to latest versions
From Alpha to Beta
- Export all data using provided tools
- Set up new database with updated schema
- Import data using migration scripts
- Test all functionality thoroughly
- Update integrations to new API endpoints
Known Issues
Version 1.0.0 Known Issues
-
Issue: Large CSV imports (>100,000 rows) may timeout
- Workaround: Split into multiple smaller files
- Fix planned: Version 1.1.0
-
Issue: Real-time analytics may lag during high load
- Workaround: Use historical analytics for accuracy
- Fix planned: Version 1.1.0
-
Issue: Some email clients block tracking pixels
- Workaround: Use link tracking as primary metric
- Fix planned: Ongoing improvements
Resolved Issues
-
Issue: Database connection issues under high load
- Resolution: Implemented connection pooling in 0.8.0
- Status: Fixed
-
Issue: Email delivery delays with certain providers
- Resolution: Implemented provider failover in 0.9.0
- Status: Fixed
-
Issue: Template rendering inconsistencies
- Resolution: Enhanced HTML/CSS processing in 0.9.2
- Status: Fixed
Roadmap
Short-term (Next 3 Months)
- Version 1.1.0: Advanced analytics and ML insights
- Version 1.1.1: Enhanced template library
- Version 1.1.2: Performance optimizations
Medium-term (3-6 Months)
- Version 1.2.0: Multi-language support
- Version 1.2.1: Advanced automation workflows
- Version 1.2.2: Enhanced integration ecosystem
Long-term (6-12 Months)
- Version 2.0.0: AI-powered campaign optimization
- Version 2.1.0: Predictive analytics engine
- Version 2.2.0: Cross-channel campaign management
Contribution History
Major Contributors
- NS Software Solutions: Core development team
- Open Source Community: Bug reports and feature suggestions
- Beta Testers: Real-world testing and feedback
- Security Researchers: Vulnerability reports and fixes
Community Contributions
- Documentation: User guides and tutorials
- Translations: Multi-language support
- Integrations: Third-party plugin development
- Templates: Community template library
Support Timeline
Version Support Policy
- Current Version: Full support with security updates
- Previous Major Version: Security updates only for 6 months
- Older Versions: Community support only
Security Update Commitment
- Critical vulnerabilities: Patches within 24 hours
- High severity vulnerabilities: Patches within 7 days
- Medium severity vulnerabilities: Patches within 30 days
- Low severity vulnerabilities: Addressed in next regular release
Change Management: All changes are tracked in our GitHub repository with detailed commit history.
Feedback: Submit feedback and feature requests through our GitHub repository.
Reporting Issues: Report bugs and security vulnerabilities through our issue tracker.
FlowCampaign is continuously improved based on user feedback, technological advancements, and industry best practices. Stay updated with our latest developments through this changelog.