Version 2.0.0

[2.0.0]

Added

• Added support for flexible day of month parsing (handles both zero-padded and space-padded formats)
• Added BenchmarkDotNet project for performance testing
• Added comprehensive POSIX compatibility test suite (138 new tests)
• Added TryParse methods with proper .NET conventions (returns bool, out parameter for result)
• Added ReadOnlySpan<char> overloads for Parse and TryParse methods for zero-allocation scenarios
• Added null argument validation with ArgumentNullException for all public methods
• Added comprehensive XML documentation for all public API methods
• Added ToStrftimeString extension methods for DateTime objects

Changed

• PERFORMANCE: Significant performance improvements in parsing operations
• PERFORMANCE: Optimized ToDayOfWeek method from O(n) loop to O(1) arithmetic calculation
• Refactored ToString method to use while loop instead of for loop with internal index modification
• Improved exception messages for better error clarity

Fixed

• Fixed IndexOutOfRangeException crash in ParseDayOfWeekFull when parsing 7-character strings starting with "Th"
• Fixed incorrect parsing when "February" appears in date strings with additional components
• Fixed case-sensitivity issues in GenericFormatter - month and day name parsing is now case-insensitive for all cultures (POSIX strptime compliance)

Internal

• Replaced string operations with ReadOnlySpan for better memory efficiency
• Implemented manual parsing for numeric values instead of using int.Parse
• Added ConcurrentDictionary-based formatter caching
• Added System.Memory package dependency
• Refactored all Consume* methods to use ReadOnlySpan
• Updated project sdk to .NET 8.0 (was .NET 6.0)
• Added EqualsIgnoreCase helper method for case-insensitive span comparison
• Refactored Parse method to use while loop for cleaner control flow
• Removed some unused structs