majiayu000 Changelog Maintenance
Overview
Create and maintain structured changelogs that document all notable changes to your project, following industry best practices like Keep a Changelog and Semantic Versioning.
When to Use
- Version history documentation
- Release notes generation
- Breaking changes tracking
- Migration guide creation
- Deprecation notices
- Security patch documentation
- Feature announcements
- Bug fix tracking
CHANGELOG.md Template
# 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
- New feature or capability that has been added
- Can be multiple items
### Changed
- Changes in existing functionality
- Updates to how features work
### Deprecated
- Features that will be removed in upcoming releases
- Include timeline for removal
### Removed
- Features that have been removed
- Previously deprecated features
### Fixed
- Bug fixes
- Security patches
### Security
- Security vulnerabilities that have been fixed
- Important security updates
## [2.1.0] - 2025-01-15
### Added
- Added OAuth2 authentication support for GitHub and Google
- New dashboard widget system for customizable layouts
- Bulk operations API for processing multiple records
- Export to Excel functionality with custom templates
- Dark mode theme support across all pages
- WebSocket support for real-time notifications
- GraphQL API alongside existing REST endpoints
- Internationalization support for 10 new languages
- Spanish, French, German, Italian, Portuguese
- Japanese, Korean, Chinese (Simplified/Traditional), Arabic
### Changed
- Updated user profile page with improved layout and performance
- Migrated from REST to GraphQL for main API endpoints
- Improved error messages with more context and suggestions
- Refactored authentication system for better security
- Updated dependencies to latest versions
- React 18.2.0 → 19.0.0
- Node.js 16.x → 18.x (minimum required version)
- PostgreSQL 13 → 14
- Changed default pagination from 20 to 50 items
- Improved search algorithm for 3x faster results
### Deprecated
- REST API v1 endpoints (will be removed in v3.0.0)
- Use GraphQL API or REST API v2 instead
- Migration guide: [docs/migration-v1-to-v2.md](docs/migration-v1-to-v2.md)
- Legacy authentication tokens (remove by 2025-06-01)
- Replace with JWT tokens
- Old configuration format in `config.json`
- Use new YAML format in `config.yaml`
### Removed
- Removed deprecated `/api/users/list` endpoint
- Use `/api/v2/users` instead
- Removed support for Internet Explorer 11
- Minimum browser versions: Chrome 90+, Firefox 88+, Safari 14+, Edge 90+
- Removed jQuery dependency (now pure JavaScript)
- Removed old dashboard widgets (replaced with new widget system)
### Fixed
- Fixed race condition in order processing causing duplicate charges
- Affected versions: 2.0.0 - 2.0.5
- Issue: [#1234](https://github.com/user/repo/issues/1234)
- Fixed memory leak in WebSocket connections
- Fixed incorrect timezone handling in date pickers
- Fixed CSV export not including all columns
- Fixed CSRF vulnerability in form submissions (CVE-2025-12345)
- Fixed accessibility issues in navigation menu
- Now fully keyboard navigable
- Screen reader friendly
- Fixed mobile responsive issues on iPad Pro
- Fixed SQL injection vulnerability in search (CVE-2025-12346)
- **Security Impact**: High
- **Affected Versions**: 2.0.0 - 2.0.9
- **Recommended Action**: Upgrade immediately
### Security
- **CRITICAL**: Fixed SQL injection in user search (CVE-2025-12346)
- Impact: Allows unauthorized database access
- Affected: v2.0.0 to v2.0.9
- Action: Upgrade to v2.1.0 immediately
- Fixed XSS vulnerability in comment rendering (CVE-2025-12347)
- Updated all dependencies with known security vulnerabilities
- Implemented rate limiting on all API endpoints
- Added CSRF protection to all forms
- Enabled Content Security Policy headers
## [2.0.5] - 2025-01-08
### Fixed
- Hotfix: Critical bug causing data loss in export functionality
- Fixed authentication issues with LDAP integration
- Resolved performance degradation with large datasets
### Security
- Patched authentication bypass vulnerability (CVE-2025-12344)
## [2.0.0] - 2025-01-01
### Added
- Complete UI redesign with modern look and feel
- New REST API v2 with better performance
- User roles and permissions system
- Audit logging for all administrative actions
- Email templates customization
- Two-factor authentication (2FA)
- API rate limiting
- Database backup automation
### Changed
- **BREAKING**: Changed API response format from XML to JSON
- All API consumers must update their integration
- See migration guide: [docs/api-v1-to-v2.md](docs/api-v1-to-v2.md)
- **BREAKING**: Renamed database tables for consistency
- `user` → `users`
- `order` → `orders`
- Run migration script: `npm run migrate:v2`
- **BREAKING**: Changed authentication from session-based to JWT
- Existing sessions will be invalidated
- Users need to log in again
- Improved database query performance by 50%
- Updated minimum Node.js version to 16.x
### Removed
- **BREAKING**: Removed support for Node.js 12 and 14
- **BREAKING**: Removed deprecated configuration options
- `USE_OLD_AUTH` - Use JWT authentication
- `LEGACY_MODE` - No longer supported
### Migration Guide
**From v1.x to v2.0:**
1. Update Node.js to version 16 or higher
2. Update your API integration:
```javascript
// Old (v1)
fetch('/api/users/list')
.then(res => res.text())
.then(xml => parseXML(xml));
// New (v2)
fetch('/api/v2/users')
.then(res => res.json())
.then(data => console.log(data));
- Run database migrations:
npm run migrate:v2 - Update environment variables:
# Remove USE_OLD_AUTH=true LEGACY_MODE=true # Add JWT_SECRET=your-secret-key JWT_EXPIRES_IN=7d
1.5.2 - 2024-12-15
Fixed
- Fixed pagination bug on user list page
- Resolved timezone issues in reports
- Fixed email notification delays
1.5.0 - 2024-12-01
Added
- New reporting dashboard
- Custom fields for user profiles
- Webhook support for integrations
Changed
- Improved search performance
- Updated UI components library
1.0.0 - 2024-10-01
Added
- Initial release
- User management
- Basic API
- Authentication and authorization
- Database migrations
- Unit and integration tests
## Release Notes Template
```markdown
# Release Notes - Version 2.1.0
**Release Date:** January 15, 2025
**Download:** [v2.1.0](https://github.com/user/repo/releases/tag/v2.1.0)
## 🎉 Highlights
- **OAuth2 Authentication**: Sign in with GitHub and Google
- **GraphQL API**: New GraphQL endpoint alongside REST API
- **Dark Mode**: Full dark mode support across all pages
- **Real-time Notifications**: WebSocket-powered live updates
- **10 New Languages**: Expanded internationalization support
## 📦 What's New
### OAuth2 Authentication
You can now sign in using your GitHub or Google account. Configure OAuth in Settings > Authentication.
```javascript
// Enable OAuth in your config
{
"auth": {
"providers": ["github", "google"],
"github": {
"clientId": "your-client-id",
"clientSecret": "your-client-secret"
}
}
}
GraphQL API
Access your data with GraphQL for more efficient queries:
query GetUser {
user(id: "123") {
id
name
email
orders {
id
total
items {
product {
name
price
}
}
}
}
}
Endpoint: https://api.example.com/graphql
Documentation: GraphQL API Docs
Dark Mode
Enable dark mode in Settings > Appearance or use system preferences.
🔧 Improvements
- 3x Faster Search: Improved search algorithm
- Better Error Messages: More helpful error messages with suggestions
- Enhanced Performance: 50% faster page loads
- Mobile Improvements: Better responsive design for tablets
🐛 Bug Fixes
- Fixed race condition in order processing
- Fixed memory leak in WebSocket connections
- Fixed timezone handling in date pickers
- Fixed accessibility issues in navigation
🔒 Security Updates
- CRITICAL: Fixed SQL injection vulnerability (CVE-2025-12346)
- Impact: High - Allows unauthorized database access
- Action: Upgrade immediately if using v2.0.0 - v2.0.9
- Fixed XSS vulnerability in comment rendering (CVE-2025-12347)
- Updated dependencies with security patches
📋 Breaking Changes
Deprecated APIs (Removal in v3.0.0)
The following REST API v1 endpoints are deprecated and will be removed in v3.0.0:
| Old Endpoint | New Endpoint | Migration Guide |
|---|---|---|
/api/users/list |
/api/v2/users |
Link |
/api/products/search |
/api/v2/products?q= |
Link |
Timeline: These endpoints will continue working until June 2025.
Updated Dependencies
- Node.js: Minimum version is now 18.x (was 16.x)
- React: Upgraded to 19.0.0
- PostgreSQL: Minimum version is now 14 (was 13)
📖 Documentation
- Full Changelog
- API Migration Guide
- Upgrade Guide
- API Documentation
🔄 Upgrading
From v2.0.x
# Backup your database first
pg_dump your_database > backup.sql
# Pull latest version
git pull origin main
# Install dependencies
npm install
# Run migrations
npm run migrate
# Restart application
npm start
From v1.x
Please see the v1 to v2 Migration Guide for detailed upgrade instructions.
🙏 Contributors
Thanks to all contributors who made this release possible:
- @contributor1 - OAuth2 implementation
- @contributor2 - GraphQL API
- @contributor3 - Dark mode
- @contributor4 - Performance improvements
📞 Support
- Issues: GitHub Issues
- Discussions: GitHub Discussions
- Documentation: docs.example.com
- Email: support@example.com
🔜 What's Next?
Coming in v2.2.0:
- Advanced analytics dashboard
- Plugin system for extensibility
- Mobile apps (iOS and Android)
- Improved team collaboration features
Stay tuned!
## Semantic Versioning Guide
Version: MAJOR.MINOR.PATCH
MAJOR version: Incompatible API changes MINOR version: Add functionality (backwards-compatible) PATCH version: Backwards-compatible bug fixes
Examples:
- 1.0.0 → 1.0.1: Bug fixes
- 1.0.1 → 1.1.0: New features (backwards-compatible)
- 1.1.0 → 2.0.0: Breaking changes
## Best Practices
### ✅ DO
- Follow Keep a Changelog format
- Use Semantic Versioning
- Document breaking changes prominently
- Include migration guides
- Link to relevant issues/PRs
- Categorize changes (Added, Changed, Fixed, etc.)
- Include security fixes in separate section
- Date all releases (YYYY-MM-DD format)
- Link to release tags
- Document deprecations with timelines
- Include upgrade instructions
- Mention contributors
### ❌ DON'T
- Skip documenting breaking changes
- Forget to update changelog before release
- Mix multiple types in one category
- Use vague descriptions
- Skip dates on releases
- Forget semantic versioning
- Hide security issues
## Resources
- [Keep a Changelog](https://keepachangelog.com/)
- [Semantic Versioning](https://semver.org/)
- [Conventional Commits](https://www.conventionalcommits.org/)
- [Release Drafter](https://github.com/release-drafter/release-drafter)