Updated docs

Author: puikinsh

CHANGELOG 2.md

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+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [3.0.0] - 2025-07-08
+
+### 🚀 Major Release - Complete Modernization
+
+This is a **complete rewrite** of the Metis Admin Template with modern web technologies and best practices.
+
+### ✨ Added
+
+#### **Framework & Technology Stack**
+- **Bootstrap 5.3.7** - Complete upgrade from Bootstrap 3
+- **Alpine.js** - Lightweight reactive framework replacing jQuery
+- **Vite Build System** - Modern build tool with HMR and optimizations
+- **ES6+ JavaScript** - Modern JavaScript with modules and async/await
+- **SCSS Architecture** - Organized, maintainable stylesheet structure
+- **Bootstrap Icons** - 1,800+ modern SVG icons
+
+#### **New Dashboard Pages**
+- **📈 Analytics Dashboard** - Advanced charts and KPI tracking
+- **👥 User Management** - Complete CRUD operations with data tables
+- **📦 Product Management** - E-commerce ready product listings with filtering
+- **🛒 Order Management** - Order tracking and status management
+- **📁 File Manager** - Modern file browser with upload/download capabilities
+- **📅 Calendar** - Full-featured event management with modal dialogs
+- **💬 Messages** - Modern chat interface with real-time styling
+- **📊 Reports** - Advanced data tables with export functionality
+- **⚙️ Settings** - Comprehensive admin configuration panels
+- **🔒 Security** - User permissions and security settings
+- **❓ Help & Support** - FAQ system, documentation, and support tickets
+
+#### **Design System**
+- **Dark/Light Mode** - Seamless theme switching with persistence
+- **CSS Custom Properties** - Full theme customization support
+- **Modern Typography** - Inter font family for enhanced readability
+- **Responsive Design** - Mobile-first approach with adaptive layouts
+- **Component Library** - Reusable UI components with consistent styling
+- **Animation System** - Smooth transitions and micro-interactions
+
+#### **Developer Experience**
+- **Hot Module Replacement** - Instant development feedback
+- **Component Architecture** - Modular, reusable JavaScript components
+- **TypeScript Ready** - Full TypeScript support (optional)
+- **Modern Build Pipeline** - Optimized assets with tree shaking
+- **Source Maps** - Better debugging experience
+- **Linting & Formatting** - Code quality tools integration
+
+#### **Interactive Features**
+- **Advanced Forms** - Modern form controls with validation
+- **Data Tables** - Sortable, filterable, and searchable tables
+- **Modal Dialogs** - Enhanced user interactions
+- **Toast Notifications** - Rich feedback system
+- **Search Functionality** - Global search with results dropdown
+- **Keyboard Shortcuts** - Improved accessibility and UX
+- **Fullscreen Toggle** - Immersive dashboard experience
+
+### 🔄 Changed
+
+#### **Complete Technology Migration**
+- **jQuery → Alpine.js** - Modern reactive framework (95% smaller bundle)
+- **LESS → SCSS** - More powerful CSS preprocessing
+- **Gulp → Vite** - Lightning-fast build system
+- **Bootstrap 3 → Bootstrap 5** - Latest framework with utilities
+- **Font Awesome → Bootstrap Icons** - Native Bootstrap icon system
+- **Static HTML → Interactive Components** - Rich, app-like experience
+
+#### **Architecture Improvements**
+- **Modular JavaScript** - ES6 modules for better organization
+- **Component-Based CSS** - ITCSS methodology with BEM naming
+- **Performance Optimization** - Tree shaking, code splitting, asset optimization
+- **Browser Support** - Modern browsers only (Chrome 90+, Firefox 88+, Safari 14+, Edge 90+)
+
+#### **Design Evolution**
+- **Modern Color Palette** - Updated with contemporary design trends
+- **Enhanced Spacing** - Improved visual hierarchy and breathing room
+- **Professional Typography** - Better readability and information density
+- **Accessibility Improvements** - WCAG 2.1 AA compliance
+- **Mobile Experience** - Touch-optimized interactions
+
+### 📦 Technical Improvements
+
+#### **Performance**
+- **90%+ Lighthouse Score** - Optimized for Core Web Vitals
+- **Faster Load Times** - Modern bundling and asset optimization
+- **Smaller Bundle Size** - Tree shaking and dead code elimination
+- **Efficient Caching** - Better browser caching strategies
+
+#### **Code Quality**
+- **Modern JavaScript** - ES6+, async/await, destructuring
+- **Type Safety** - Optional TypeScript support
+- **Consistent Styling** - Prettier and ESLint integration
+- **Documentation** - Comprehensive code comments and guides
+
+#### **Build System**
+- **Development Server** - Fast HMR with Vite
+- **Production Builds** - Optimized, minified assets
+- **Asset Handling** - Automatic image optimization
+- **Environment Support** - Development, staging, production configs
+
+### 🗑️ Removed
+
+#### **Legacy Dependencies**
+- **jQuery** - Replaced with Alpine.js
+- **Bootstrap 3** - Upgraded to Bootstrap 5
+- **LESS** - Migrated to SCSS
+- **Gulp Build System** - Replaced with Vite
+- **Bower** - Removed in favor of npm
+- **Grunt** - No longer needed with Vite
+
+#### **Outdated Features**
+- **IE11 Support** - Focus on modern browsers
+- **Legacy Browser Fallbacks** - Simplified for modern web
+- **Outdated JavaScript Patterns** - Replaced with modern alternatives
+- **Static HTML Includes** - Replaced with component architecture
+
+#### **Cleanup**
+- **Unused CSS** - Removed redundant styles
+- **Dead JavaScript Code** - Eliminated unused functions
+- **Legacy Assets** - Removed outdated images and icons
+- **Development Cruft** - Cleaned build artifacts and temporary files
+
+### 🛠️ Migration Guide
+
+#### **For Developers**
+1. **Node.js 18+** required (previously no Node.js requirement)
+2. **npm install** replaces bower install
+3. **npm run dev** replaces gulp serve
+4. **src-modern/** contains new source files
+5. **Alpine.js syntax** replaces jQuery code
+
+#### **For Customization**
+1. **SCSS Variables** in `src-modern/styles/scss/abstracts/_variables.scss`
+2. **Component Styles** in `src-modern/styles/scss/components/`
+3. **JavaScript Components** in `src-modern/scripts/components/`
+4. **Vite Configuration** in `vite.config.js`
+
+### 📈 Breaking Changes
+
+- **Node.js 18+ Required** - Modern development environment needed
+- **Browser Support** - IE11 and legacy browsers no longer supported
+- **Build System** - Complete change from Gulp to Vite
+- **JavaScript API** - Alpine.js replaces jQuery patterns
+- **CSS Structure** - SCSS architecture replaces LESS files
+- **File Organization** - New directory structure in `src-modern/`
+
+### 🎯 Upgrade Path
+
+1. **Backup Current Implementation** - Save existing customizations
+2. **Install Dependencies** - `npm install` with Node.js 18+
+3. **Review New Structure** - Familiarize with `src-modern/` organization
+4. **Migrate Customizations** - Port themes and custom code
+5. **Test Functionality** - Verify all features work as expected
+6. **Deploy New Version** - Use `npm run build` for production
+
+---
+
+## [2.3.2] - 2015-01-12 (Legacy)
+
+### Added
+- Bootstrap 3.3.6 support
+- Many plugins updated
+- RTL language support
+- Gulp build system
+- jQuery-based interactions
+
+### Features
+- Basic admin dashboard
+- Form components
+- Data tables
+- Chart integration
+- File upload functionality
+
+---
+
+## [2.3.1] - 2014-11-01 (Legacy)
+
+### Added
+- Bootstrap 3.3.0 support
+- Fixed jquery-timepicker stylesheet
+- Added metisMenu plugin
+- Many plugins updated
+
+---
+
+## [2.2.7] - 2014-07-18 (Legacy)
+
+### Added
+- Added some layouts sample
+
+---
+
+## [2.2.6] - 2014-07-07 (Legacy)
+
+### Added
+- Bootstrap 3.2.0 support
+
+---
+
+## [2.2.5] - 2014-06-04 (Legacy)
+
+### Added
+- Fixed side panel(s) code
+- Deprecated main.js
+- Added core.js & app.js
+
+---
+
+## [2.2.4] - 2014-04-23 (Legacy)
+
+### Added
+- RTL version added
+- Remove CLEditor
+- Added CKEditor
+
+---
+
+## [2.2.3] - 2014-04-13 (Legacy)
+
+### Added
+- Rewrite all code
+
+---
+
+## [2.2.2] - 2014-04-10 (Legacy)
+
+### Added
+- Remove `alterne.html`
+- Right panel available
+
+---
+
+## [2.2.1] - 2014-04-07 (Legacy)
+
+### Added
+- All dependency require bower & npm
+
+---
+
+## [2.2.0] - 2014-02-28 (Legacy)
+
+### Added
+- Rewrite menu, layout, etc
+
+---
+
+## [2.1.4] - 2014-02-16 (Legacy)
+
+### Added
+- Update bootstrap 3.1.1
+- Add screenfull.js
+- Fixed #menu
+
+---
+
+## [2.1.3] - 2014-01-19 (Legacy)
+
+### Added
+- Add suitcss's flex-embed component
+
+---
+
+## [2.1.2] - 2013-11-30 (Legacy)
+
+### Added
+- Create menu plugin
+- Rewrite `menu.less`
+
+---
+
+## [2.1.1.2] - 2013-10-28 (Legacy)
+
+### Added
+- Add bower
+
+---
+
+## [2.1.1.1] - 2013-10-28 (Legacy)
+
+### Added
+- Remove bootstrap, font awesome, gmaps submodule
+
+---
+
+## [2.1.1] - 2013-10-23 (Legacy)
+
+### Added
+- Added `bgimage.html`
+- Added `bgcolor.html` pages
+
+---
+
+## [2.1] - 2013-10-22 (Legacy)
+
+### Added
+- Various improvements
+
+---
+
+## [1.0] - 2013-02-14 (Legacy)
+
+### Added
+- Initial release
+- Bootstrap 2.3.2 framework
+- Basic admin layout
+- Essential components
+
+---
+
+**Note**: Versions prior to 3.0.0 are considered legacy and are no longer actively maintained. Please upgrade to 3.0.0 for the latest features, security updates, and modern web standards compliance.