QNAP Systems, Inc. (QNAP) today officially released the QuTS hero h4.5.1 NAS operating system. Featuring numerous improvements and enhancements, QuTS hero h4.5.1 adds support for WORM (Write Once, Read Many) auto-committing, VM live migration, Wi-Fi WPA2 Enterprise, Azure Active Directory Domain Services (Azure AD DS), QuLog Center for centralized log management, and QuFirewall for network security. QNAP's new "QuTS hero" operating system uses the 128-bit ZFS file system that focuses on data integrity, making it perfect for business storage applications emphasizing data protection. QuTS hero also includes the App Center for expanding NAS application potential.