New transfer engine: 64 KiB chunking with flow control, end-to-end SHA-256 verification on every file, automatic resume from the last verified chunk after connection loss.
Safety codes: both devices independently derive a six-digit code from the encrypted connection's certificate fingerprints for man-in-the-middle detection.
Connection transparency: live badge showing LAN direct / internet direct / encrypted relay, read from the actual selected WebRTC candidate pair.
One-time rooms with QR, link and single-use short-code invites; explicit accept before any device can connect.
Folder transfer on supporting browsers, with sanitized relative paths.
Automatic signaling reconnection with rotating single-use credentials.
New public site (this one) with plain-language security and privacy documentation.