Changelog

SEO and content pages

• -Added Features, AI, and Markdown Guide content pages
• -Implemented Open Graph and Twitter Card meta tags
• -Added JSON-LD structured data (WebApplication schema)
• -Generated dynamic OG image
• -Created XML sitemap

Design system, animations, and polish

• -Established design system with .impeccable.md design context
• -Added smooth sidebar slide and accordion animations
• -Added settings panel slide transition
• -Added zen mode crossfade and toast exit animations
• -Added button press feedback across all interactive elements
• -Added save status indicator (Saved/Unsaved) in title bar
• -Added keyboard shortcuts modal (press ? to open)
• -Added tooltips to all navbar icon buttons
• -Improved typography: title bar, preview headings with bottom borders
• -Added visual separation between editor and preview panes
• -Added beforeunload warning for unsaved changes
• -Responsive sidebar with mobile overlay and backdrop
• -Preview pane hidden on mobile for full-width editing
• -Replaced default welcome document with clean markdown showcase
• -Added fade-in animation for export dropdown
• -Collapsed empty ad bar when no ads load
• -Added preview empty state placeholder
• -Added reduced motion support (prefers-reduced-motion)
• -Added motion design tokens to Tailwind config

Performance and testing

• -Optimized React rendering and async waterfalls
• -Improved bundle size with tree-shaking
• -Added comprehensive test suite (Vitest + Playwright)
• -Addressed react-doctor diagnostics across codebase

Next.js migration

• -Migrated from Angular/Express to Next.js 14 with App Router
• -Monaco Editor integration with Vim/Emacs keybindings
• -Live markdown preview with scroll sync
• -Cloud integrations: GitHub, Dropbox, Google Drive, OneDrive, Bitbucket
• -Export to Markdown, styled HTML, and PDF
• -Drag-and-drop file import
• -Image paste from clipboard
• -Auto-save to localStorage
• -Dark mode / night mode
• -Zen mode for distraction-free writing
• -Zustand state management with persistence
• -DOMPurify XSS sanitization
• -KaTeX math rendering