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

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[Unreleased]

Added

• NIL

Changed

• NIL

Deprecated

• NIL

Removed

• NIL

Fixed

• NIL

Security

• NIL

[0.1.1] - 2025-11-27

Changed

• Consolidated packaging tool detection in CMake configuration

Fixed

• Removed incorrect runtime dependencies from DEB/RPM packages

[0.1.0] - 2025-11-17 - Initial Release

Added

• DateTime: UTC-based date and time representation
  • 100-nanosecond precision (10 million ticks per second)
  • Range: January 1, 0001 to December 31, 9999
  • Complete arithmetic operators (+, -, comparisons)
  • Factory methods (now(), today(), min(), max(), epoch(), fromEpochSeconds(), fromEpochMilliseconds())
  • Component accessors (year(), month(), day(), hour(), minute(), second(), millisecond(), microsecond(), nanosecond(), dayOfWeek(), dayOfYear())
  • ISO 8601 parsing and formatting (fromString(), toString(), toIso8601Extended())
  • Epoch timestamp conversion (toEpochSeconds(), toEpochMilliseconds())
  • Date/time manipulation (date(), timeOfDay())
  • std::chrono interoperability (toChrono(), fromChrono())
• DateTimeOffset: Timezone-aware date and time representation
  • All DateTime features plus timezone offset support
  • Offset range: -14:00 to +14:00
  • Component accessors (year(), month(), day(), hour(), minute(), second(), millisecond(), microsecond(), nanosecond(), dayOfWeek(), dayOfYear())
  • Timezone conversion (toOffset(), toUniversalTime(), toLocalTime())
  • ISO 8601 parsing and formatting with timezone (fromString(), toString(), toIso8601Extended())
  • UTC and local time accessors (utcDateTime(), localDateTime(), utcTicks())
  • Factory methods (now(), utcNow(), today(), fromEpochSeconds(), fromEpochMilliseconds(), fromFILETIME())
  • Date/time arithmetic (add(), addDays(), addHours(), addMinutes(), addSeconds(), addMonths(), addYears())
  • Windows FILETIME conversion support
• TimeSpan: Duration and time interval representation
  • 100-nanosecond precision matching DateTime
  • Range: -10,675,199 days to +10,675,199 days
  • Complete arithmetic operators (+, -, +=, -=, unary -, *, /, comparisons)
  • User-defined literals for natural C++ syntax (_d, _h, _min, _s, _ms, _us, _ns)
  • Compile-time evaluation with constexpr literals
  • Factory methods (fromDays(), fromHours(), fromMinutes(), fromSeconds(), fromMilliseconds(), fromMicroseconds(), fromTicks())
  • Total value accessors (days(), hours(), minutes(), seconds(), milliseconds(), microseconds(), nanoseconds())
  • Tick count accessor (ticks())
  • ISO 8601 duration parsing and formatting (fromString(), toString())
  • Duration calculations and comparisons
  • std::chrono::duration interoperability (toChrono(), fromChrono())
  • Proper rounding to 100ns tick precision for sub-tick values
• Documentation
  • README with feature overview
  • Detailed API documentation with Doxygen comments
  • Sample application demonstrating library usage
  • Build and installation instructions
• Testing & Benchmarking
  • Unit test suite
  • Performance benchmarks for all operations
  • Cross-compiler performance validation