# Changelog

## Version 1.9 - Code Restructuring, Security & Modern UI

### UI/UX Improvements
- ✅ **Removed Bootstrap dependency** - Now uses native WordPress admin styles
- ✅ Created modern, clean WordPress-native admin interface
- ✅ Improved form layouts with better accessibility
- ✅ Added visual feedback for active integration type
- ✅ Better responsive design for mobile devices
- ✅ Cleaner tab navigation with active indicators
- ✅ Improved success/error messaging
- ✅ Added helpful descriptions for all fields
- ✅ Better visual hierarchy and spacing

### Security Enhancements
- ✅ Fixed XSS vulnerabilities in URL redirects
- ✅ Added nonce verification for all admin actions
- ✅ Replaced file-based caching with WordPress transients
- ✅ Added proper capability checks (`manage_options` instead of `administrator`)
- ✅ Improved input sanitization and output escaping
- ✅ Added `wp_safe_redirect()` for all redirects

### Code Restructuring
- ✅ Created class-based architecture following WordPress standards
- ✅ Separated concerns into logical classes:
  - `PCIT_Activator` - Handles activation/deactivation/uninstall
  - `PCIT_Settings` - Centralized settings management
  - `PCIT_Frontend` - Frontend script output
  - `PCIT_Anti_Adblock` - Anti-adblock functionality
- ✅ Added proper namespacing and organization
- ✅ Created `uninstall.php` for proper plugin cleanup
- ✅ Added comprehensive inline documentation
- ✅ Maintained backward compatibility with existing installations

### File Structure
```
popcashnet-code-integration-tool/
├── main.php (new streamlined bootstrap)
├── functions.php (legacy compatibility layer)
├── uninstall.php (new)
├── includes/ (new)
│   ├── class-activator.php
│   ├── class-admin.php
│   ├── class-settings.php
│   ├── class-frontend.php
│   └── class-anti-adblock.php
├── assets/
├── forms/
├── images/
└── template/
```

### Backward Compatibility
- All existing functions remain available (marked as deprecated)
- Settings and options remain unchanged
- Admin interface unchanged for users
- No data migration required

### Performance Improvements
- Transient-based caching instead of file system
- Conditional asset loading (only on plugin pages)
- Optimized class loading

### Developer Improvements
- PSR-4-like class structure
- Comprehensive PHPDoc comments
- Separation of concerns
- Easier to maintain and extend
- Better error handling

## Version 1.8
- Fixed dynamic property deprecation warning

## Version 1.7
- Tested for WordPress 6.4

## Version 1.6
- Added Bootstrap version 5

## Version 1.4
- Bumped version for WordPress 6.1

## Version 1.3
- Updated old layout and fixed bugs
- Added Anti AdBlock feature

## Version 1.2.1
- Update script source

## Version 1.2
- New drop-down option to choose the fallback behavior
- Added a fallback CDN

## Version 1.1.1
- Fixing bugs when switching tabs

## Version 1.1
- Fix cross site scripting vulnerability