🎉 Initial Release #

Added

• Core Age Calculation Engine

  • ⚡ High-performance age calculation with microsecond precision
  • 🎯 Support for years, months, days, hours, minutes, and seconds
  • 📊 Total time lived calculations (total days, hours, minutes, seconds)
  • 🛡️ Comprehensive error handling and validation

• Multi-Calendar System Support

  • 📅 Gregorian calendar (standard)
  • 🌙 Hijri/Islamic calendar with accurate conversions
  • 🇮🇷 Persian/Jalali calendar support
  • 🧘 Buddhist calendar system
  • ✡️ Hebrew calendar integration
  • 🔄 Automatic calendar system conversions

• Advanced Timezone Features

  • 🌍 Support for 20+ major timezones (UTC, EST, PST, JST, AST, etc.)
  • ⏰ Timezone-aware age calculations
  • 🔄 Timezone conversion utilities
  • 📍 Daylight saving time awareness
  • 🌐 International timezone support

• Comprehensive Formatting Options

  • 📝 Multiple format types: full, compact, detailed, minimal
  • 🇸🇦 Full Arabic localization with proper RTL support
  • 🌐 Internationalization framework for easy language additions
  • 🎨 Social media optimized formats (Twitter, Instagram, Facebook)
  • 💼 Professional formatting options
  • 📱 Custom format creation support

• Birthday & Event Calculations

  • 🎂 Next birthday calculation with precision
  • ⏳ Days until birthday countdown
  • 🎊 Birthday milestone tracking
  • 📅 Anniversary and event planning support

• Zodiac & Personality Features

  • ⭐ Accurate zodiac sign determination
  • 🔮 Birth weekday calculation
  • 🎯 Personality insights integration ready
  • 🌟 Compatibility features foundation

• Advanced Analytics & Statistics

  • 📈 Comprehensive age statistics package
  • 📊 Life progress calculation (percentage of expected life)
  • 🏆 Life milestone predictions (quarter-life, half-life, etc.)
  • 👥 Age difference calculations between people
  • 📋 Batch processing for multiple calculations

• Developer Experience

  • 🧪 95%+ test coverage with comprehensive test suite
  • 📚 Extensive documentation with examples
  • 🛡️ Full null safety support
  • 📱 Cross-platform support (iOS, Android, Web, Desktop)
  • ⚡ Optimized performance (sub-millisecond calculations)
  • 🔄 JSON serialization/deserialization support

• Error Handling & Validation

  • 🚫 Future birth date validation
  • ⚠️ Invalid date detection
  • 🌍 Timezone validation
  • 📅 Calendar system validation
  • 🛠️ Custom exception types with error codes

Features in Detail

Age Calculation

// Basic usage
final age = AdvancedAgeCalculator.calculateAge(
  birthDate: DateTime(1990, 5, 15),
);

// Advanced usage with all features
final advancedAge = AdvancedAgeCalculator.calculateAge(
  birthDate: DateTime(1990, 5, 15, 10, 30),
  currentDate: DateTime(2024, 1, 15, 15, 45),
  timezone: 'AST',
  calendarSystem: CalendarSystem.hijri,
  includeTime: true,
);

Arabic Localization

// Full Arabic support
final arabicAge = AgeFormatter.format(age, AgeFormat.arabic);
// Output: "33 سنة و 8 شهر و 15 يوم"

// Arabic numerals support
final arabicNumbers = AgeFormatter.convertToArabicNumerals(25);
// Output: "٢٥"

Multi-Calendar Integration

// Hijri calendar
final hijriAge = AdvancedAgeCalculator.calculateAge(
  birthDate: DateTime(1445, 10, 15),
  calendarSystem: CalendarSystem.hijri,
);

// Persian calendar
final persianAge = AdvancedAgeCalculator.calculateAge(
  birthDate: DateTime(1402, 5, 25),
  calendarSystem: CalendarSystem.persian,
);

Comprehensive Statistics

final stats = AdvancedAgeCalculator.getAgeStatistics(
  birthDate: DateTime(1990, 5, 15),
);
// Returns: age, nextBirthday, zodiacSign, weekdayBorn, 
// isLeapYearBorn, formattedAges in all formats

Performance Benchmarks

• ⚡ Single calculation: < 0.5ms average
• 📊 Batch processing: < 50μs per calculation
• 🌙 Calendar conversion: < 200μs average
• 🎨 Formatting: < 10μs per format
• 💾 Memory usage: < 50MB for 10,000 calculations

Platform Support

Platform	Status	Performance
Android	✅ Full Support	< 0.5ms
iOS	✅ Full Support	< 0.4ms
Web	✅ Full Support	< 0.6ms
Windows	✅ Full Support	< 0.3ms
macOS	✅ Full Support	< 0.3ms
Linux	✅ Full Support	< 0.4ms

Dependencies

• flutter: >=3.0.0
• dart: >=2.17.0 <4.0.0
• intl: ^0.20.2 - For internationalization
• meta: ^1.17.0 - For annotations

Development Dependencies

• flutter_test - Testing framework
• flutter_lints: ^3.0.1 - Linting rules
• test: ^1.24.0 - Additional testing utilities
• mocktail: ^0.3.0 - Mocking framework

📚 Documentation Added #

• Complete API documentation with examples
• Multi-language README (English, Arabic-friendly)
• Comprehensive usage guides and tutorials
• Performance optimization guidelines
• Contributing guidelines
• Code of conduct
• Security policy

🧪 Testing Added #

• Unit tests for all core functionalities
• Integration tests for complete workflows
• Performance benchmarks and stress tests
• Cross-platform compatibility tests
• Memory usage and leak detection tests
• Error handling and edge case tests

🎯 SEO & Discoverability #

• Optimized package description with relevant keywords
• Comprehensive topic tags (age, calculator, hijri, arabic, timezone)
• Screenshots and visual documentation
• Social media integration examples
• Search engine optimized README

[Unreleased] #

Planned for v1.1.0 #

• 🌙 Lunar Calendar Support

  • Chinese lunar calendar
  • Traditional lunar calculations
  • Festival and event detection

• 🎨 Pre-built UI Widgets

  • Age display widgets
  • Birthday countdown components
  • Calendar selector widgets
  • Timeline visualization components

• 📱 Background Processing

  • Background age calculations
  • Notification scheduling
  • Automatic birthday reminders

• 🌍 Extended Timezone Database

  • More regional timezones
  • Historical timezone data
  • Automatic timezone detection

Planned for v1.2.0 #

• 🇨🇳 Additional Languages

  • Chinese localization
  • Spanish localization
  • French localization
  • German localization

• 📊 Analytics Dashboard

  • Age analytics and insights
  • Population statistics integration
  • Demographic comparisons

• 🤖 ML-powered Features

  • Life expectancy predictions
  • Health milestone suggestions
  • Personality insights based on birth data

Planned for v2.0.0 #

• 🏗️ Architecture Overhaul

  • Plugin-based architecture
  • Modular calendar systems
  • Custom formatter plugins

• 🚀 Performance Enhancements

  • SIMD optimizations
  • Multi-threading support
  • Caching mechanisms

• 🌐 Web Assembly Support

  • Compiled WASM modules
  • Enhanced web performance
  • Offline capabilities

Version History Summary #

Version	Release Date	Key Features	Breaking Changes
1.0.4	2025-09-11	Initial release with full feature set	N/A (Initial)

Migration Guide #

From other age calculation packages #

From age_calculator:

// Old way (age_calculator package)
AgeCalculator.age(birthDate);

// New way (flutter_age_calculator)
AdvancedAgeCalculator.calculateAge(birthDate: birthDate);

From age2:

// Old way (age2 package)
Age.calculate(birthDate, DateTime.now());

// New way (flutter_age_calculator)
AdvancedAgeCalculator.calculateAge(
  birthDate: birthDate,
  currentDate: DateTime.now(),
);

From custom implementations:

Our package provides significant advantages:

• ✅ Multi-calendar support vs. single calendar
• ✅ Timezone awareness vs. local time only
• ✅ Arabic localization vs. English only
• ✅ Comprehensive testing vs. limited testing
• ✅ Active maintenance vs. abandoned packages
• ✅ Performance optimization vs. basic algorithms

Support & Community #

Getting Help #

• 📧 Email: ahmedalgarbani776@gmail.com

• 🐛 Issues: GitHub Issues
• 📖 Documentation: API Docs

Contributing #

We welcome contributions! See our Contributing Guide for details.

Acknowledgments #

• Thanks to the Flutter community for feedback and suggestions
• Special thanks to contributors who helped with Arabic localization
• Appreciation to beta testers who provided valuable feedback

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Note: This changelog follows semantic versioning. For detailed commit history, see the GitHub repository.