Changelog

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]

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[0.2.0] - 2025-10-12 (Alpha)

Note: This release was initially tagged as v1.1.0 but renumbered to v0.2.0 to reflect alpha status. All tags are now GPG-signed for security and authenticity.

Added

• Add prominent download section to GitHub Page
• Reorganize project structure with branch protections and GitHub Actions
• Add GitHub issue and PR templates
• Add Windows installer infrastructure with Inno Setup
• Implement custom SASheetData for memory optimization
• Add final memory optimizations with TrimExcess
• Add responsive hamburger menu for mobile navigation

Documentation

• Update website branding from ExcelViewer to SheetAtlas
• Update website downloads - Windows installer ready, Linux/macOS coming soon

Fixed

• Remove explicit wizard image files from Inno Setup script
• Reorder Pascal functions to declare before use
• Correct project descriptions and update all references from excel-viewer to sheet-atlas
• Implement memory leak cleanup infrastructure (partial)
• Handle empty Excel sheets correctly in OpenXmlFileReader
• Preserve UI state when removing files via Clean All Data
• RowComparison UI cleanup on close (#8, [#9])
• Auto-switch to Search Results tab when search completes
• RowComparison cells now adapt to dark mode theme (#7)
• Menu items cleanup and implementation (#1-6)
• Update website version numbers to v1.1.0

Performance

• Remove unnecessary ItemArray.ToList() memory copy
• Remove fake async methods from RowComparisonService
• Add string interning for duplicate cell values

Refactored

• Rename project from ExcelViewer to SheetAtlas
• Fix all nullability warnings for cleaner build

[0.1.0] - 2025-10-08 (Alpha)

Note: This release was initially tagged as v1.0.0 but renumbered to v0.1.0 to reflect alpha status. This is the initial public alpha release with core features.

Added

• Implement David Fowl standards for project structure
• Complete UI redesign with professional theme system and Notepad++ style search results
• Add granular selection controls for search results
• Create GitHub Pages website with app-themed design
• Add quality external links to improve SEO
• Add quality external links to improve SEO
• Improve website SEO with advanced meta tags
• Implement centralized exception handling framework
• Add error handling safety nets and activity logging
• Add XlsFileReader for legacy Excel file support
• Add CsvFileReader with auto-delimiter detection
• Update file picker to support all spreadsheet formats
• Add automated changelog generation workflow
• Add automated multi-platform build workflow

Documentation

• Update Git workflow documentation with develop branch strategy
• Reorganize and clean up documentation structure
• Separate business strategy from public documentation
• Add comprehensive README.md
• Add error handling philosophy to CLAUDE.md
• Add Google Search Console verification meta tag
• Update README for v1.0.0 release

Fixed

• Resolve comparison view crash and improve styling
• Remove download options from README - project not ready for release
• Add website images to version control
• Synchronize column widths between headers and data cells
• Align row comparison header width with column content
• Use single-line command for PowerShell compatibility

Miscellaneous

• Remove accidentally committed sample files
• Remove obsolete UI documentation files
• Update CHANGELOG for v1.0.0

Refactored

• Reorganize project structure following David Fowl standards
• Restructure Core layer following Clean Architecture principles
• Implement David Fowl architecture with separated Infrastructure layer
• Move website files to docs/ directory for GitHub Pages
• Split large ViewModels and improve code organization
• Extract ICellValueReader to eliminate code duplication
• Remove redundant error handling and apply "Never Throw" philosophy
• Extract OpenXML logic to Strategy Pattern for multi-format support

Testing

• Verify pre-commit hook
• Add integration test infrastructure with real Excel files
• Update test constructors after ExcelReaderService refactoring

Ci

• Add multi-platform CI workflow with automated testing

Merge

• Align feature/ui-improvements with develop
• Integrate UI improvements into develop

Resolve

• Merge conflict in index.html keeping enhanced meta tags

Full Changelog: https://github.com/ghostintheshell-192/sheet-atlas/compare/v0.3.0...v0.3.1