# Core v5.3.4
**Release Date:** January 17, 2025  
**Tags:** EXCHANGE INTEGRATION, BUG FIXES, SPOT TRADING

## Fixed

### KuCoin Exchange Integration
- **SPOT Deposit Addresses**: Fixed critical issue where SPOT wallet deposit addresses were returning empty objects for KuCoin exchange
- **Network Mapping**: Enhanced network mapping system to handle KuCoin's specific network ID requirements (e.g., `ERC20` vs `eth`)
- **Address Generation**: Added comprehensive fallback system with multiple CCXT methods for deposit address generation
- **Network Validation**: Implemented intelligent network validation using KuCoin's currency network structure

### Error Handling & User Experience
- **Error Messages**: Fixed incorrect error messages showing ECO wallet errors for SPOT wallet operations
- **Wallet Types**: Added wallet-type-specific error handling for better user experience
- **Frontend Detection**: Enhanced error detection to properly differentiate between wallet types

### Interface Improvements
- **Layout Fix**: Fixed deposit form layout to display maximum 3 columns instead of 4 for wallet type selection
- **Grid Layout**: Updated layout to match available wallet types (Fiat, Spot, Eco)
- **Visual Balance**: Improved spacing and visual balance for wallet type selection interface

## Enhanced

### Exchange Integration Reliability
- **Multi-Method Fallback**: Enhanced KuCoin deposit address generation with comprehensive method fallback
- **Success Rate**: Improved deposit address generation success rate across different exchange configurations
- **Method Degradation**: Graceful degradation when trying multiple CCXT methods

### Network Detection
- **Dynamic Mapping**: Enhanced network mapping to dynamically detect available networks from exchange API
- **Chain Validation**: Automatic validation of chain names against exchange-supported networks
- **Fallback Mappings**: Intelligent fallback mappings for common blockchain-to-token-standard conversions