# Version 5.1.3

**Release Date:** June 23, 2025  
**Tags:** UI IMPROVEMENTS, PERFORMANCE OPTIMIZATION

## Fixed

### Support System UI
- **Mobile Design**: Implemented comprehensive mobile-first responsive design
- **Mobile Navigation**: Created tab-based navigation for conversation, customer info, and timeline
- **Chat Interface**: Enhanced mobile chat with optimized message sizing and touch controls
- **Responsive Layout**: Added breakpoints for mobile tabs and desktop sidebar layouts
- **Header Spacing**: Fixed spacing between "Response:" and time value
- **Scroll Behavior**: Fixed page scroll issues when sending messages
- **Visual Cleanup**: Removed unnecessary separators in admin conversation area

### Investment Plan Performance
- **Infinite Loop**: Fixed unlimited API calls causing server overload
- **Caching System**: Implemented 30-second caching to prevent duplicate calls
- **Loading States**: Added proper cache duration checking
- **Stats Optimization**: Enhanced stats fetching with similar caching mechanism

## Improved

### Mobile Support Interface
- **Touch-Friendly**: Optimized with proper viewport height calculations
- **Compact Layout**: Smaller avatars and compact message bubbles for mobile
- **Navigation**: Touch-friendly buttons with proper spacing
- **Responsive Header**: Flexible layout with truncated text for mobile

### Performance Optimization
- **API Calls**: Significantly reduced server load by preventing duplicates
- **Cache Management**: Intelligent cache duration checking with loading states
- **Memory Efficiency**: Optimized component re-rendering

### Responsive Features
- **Mobile View**: Tab navigation with Chat, Customer, and Timeline sections
- **Desktop View**: Sidebar layout with customer info and agent details
- **Visual Hierarchy**: Enhanced spacing and layout for all screen sizes
- **Back Button**: Compact chevron design to save mobile space