v1.0.0 – Launch

All features required to make this into a complete* app have been achieved! This update has a fully functional binary tree creator supporting leetcode serialization and a graph creator supporting weighted/unweighted/directed/undirected edges with multiple output formats, all with a beautiful and intuitive interface.

Since v0.3 (the previous version), the following has been achieved:

Additions

• Added graph serialization
• Added graph panel for viewing data
• Standardized copy/download/reset buttons
• Implemented undo/redo for graph operations
• Enabled selected edge deletion
• Added lazy loading and React Suspense to optimize initial load
• Added local storage persistence for graphs
• Added usage instructions for both apps (Tree & Graph)

Fixes

• Fixed Netlify routing bugs with _redirects and fallback 404 page
• Corrected typo in sitemap.xml
• Handled mobile device detection with a fallback message

SEO

• Added absolute URLs for OpenGraph metadata
• Included robots.txt and sitemap.xml
• Set custom page titles and added a favicon

For developers

• Created CONTRIBUTING.md
• Added GitHub issue templates
• Updated documentation and new release procedures

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This was a very strong learning experience in many areas, notably app design, SEO, and Git workflows. I hope this app is useful to students and educators bravely getting through those advanced algorithm classes and fully intend on adding more features with time.

*no such thing as "complete"

v0.3.0 – Add Graph (Directed, Undirected, Weighted, Unweighted)

• Added pagination with header
• Added graph component
• Add Ctrl + A hotkey for tree component
• Refactored project file/folder structure
• Changed default zoom for tree
• Added import aliases
• Fixed bug where clicking between nodes would incorrectly create edges between them
• Added incrementing graph node values similar to tree
• Refactored store.ts files into separate store.ts and api.ts files for clearer usage
• Added more documentation
• Moved tree/graph flow handlers into a useHandlers module
• Added weight labels and editing
• Added toggling between drag/draw UI states in graph
• Added graph hotkeys component for future use
• Added undirected and directed support for graph