v1.0.0 - Initial Release

First public release of KRX DNS Checker

Features:

• Fast DNS server testing (1s timeout)
• Automatic DNS configuration
• Visual results with working/failed servers
• Automatic DHCP reset on exit
• Administrator privilege handling
• Color-coded console output
• Graceful shutdown handling

Required:

• Windows 10/11
• Administrator privileges
• Visual C++ Runtime

Note: Create dns_servers.txt in the same directory as the executable, with one DNS server per line.