RealVNC 6.1.0

NEW: VNC Server supports multi-factor authentication. Choose a scheme based on X.509 digital certificates stored on pluggable smartcards/authentication tokens or in certificate stores, or a RADIUS server implementation from an identity management provider such as RSA SecurID or Duo. Alternatively, create a custom scheme containing as many factors as you need.
NEW: Conveniently assign discovery permissions to computers in your RealVNC account by creating groups of people and computers. Restricting discovery improves security, and helps team members reduce the number of computers they interact with in VNC Viewer.
NEW: Organize computers in VNC Viewer using labels. Right-click on the address book to create a new label, or assign a label to a computer on its Properties page.
NEW: Display a details view of computers VNC Viewer instead of a screenshot icon view, and sort by name, last connected time, and label.
More intuitive scaling options for the remote computer desktop are now available from VNC Viewer’s Properties page.
VNC Server now prompts you to send anonymous usage data to RealVNC, to help improve the user experience. You can opt out on VNC Server’s Options > Privacy page.