Revision history for LTSV::LINQ

1.02  2026-02-17
    - Added 6 new methods for relational operations and utilities
    
    New methods:
    - Data sources: Empty, Repeat
    - Concatenation: Zip
    - Join operations: Join
    - Conversion: ToDictionary, ToLookup
    
    Improvements:
    - Enhanced POD documentation with detailed examples
    - Updated method summary table (45 -> 49 methods)
    - Ensured all source code is US-ASCII only (no multibyte characters)
    - Added test for ASCII-only verification
    - Method count: 49 methods across 15 categories

1.01  2026-02-16
    - Added 14 new methods to enhance LINQ compatibility
    
    New methods:
    - Element access: LastOrDefault, Single, SingleOrDefault, 
                      ElementAt, ElementAtOrDefault
    - Quantifier: Contains
    - Concatenation: Concat
    - Partitioning: SkipWhile
    - Default value: DefaultIfEmpty
    - Aggregation: Aggregate
    - Set operations: Union, Intersect, Except
    - Comparison: SequenceEqual
    
    Improvements:
    - Enhanced POD documentation for all new methods
    - Added comprehensive examples for each method
    - Updated method summary table (31 -> 45 methods)
    - Improved test coverage
    - Optimized Single/ElementAt to use lazy evaluation (O(1) memory)
    - Fixed Makefile.PL version inconsistency
    - Clarified Perl 5.005_03 specification philosophy
    - Added .NET LINQ compatibility notes

1.00  2026-02-15
    - Initial release
    - LINQ-style query interface for LTSV files
    - Inspired by Microsoft's LINQ (Language Integrated Query)
    - LINQ(R) is a registered trademark of Microsoft Corporation
    - Lazy evaluation with iterators
    - DSL syntax for simple filtering (Where(key => value))
    - Full method chaining support
    - Compatible with Perl 5.005_03 and later
    - Pure Perl implementation (no XS required)
    
    Methods implemented:
    - Data source: From, FromLTSV, Range
    - Filtering: Where (with DSL)
    - Projection: Select, SelectMany
    - Partitioning: Take, Skip, TakeWhile
    - Ordering: OrderBy, OrderByDescending, Reverse
    - Grouping: GroupBy
    - Set operations: Distinct
    - Quantifiers: All, Any
    - Element access: First, FirstOrDefault, Last
    - Aggregation: Count, Sum, Min, Max, Average, AverageOrDefault
    - Conversion: ToArray, ToList, ToLTSV
    - Utility: ForEach
