diff --git a/bin/usb-client b/bin/usb-client
index cb73d07..9ae0787 100755
Binary files a/bin/usb-client and b/bin/usb-client differ
diff --git a/bin/usb-client.exe b/bin/usb-client.exe
index 6de8db5..33ace47 100755
Binary files a/bin/usb-client.exe and b/bin/usb-client.exe differ
diff --git a/bin/usb-relay b/bin/usb-relay
index fbfeff8..9996fca 100755
Binary files a/bin/usb-relay and b/bin/usb-relay differ
diff --git a/internal/client/share.go b/internal/client/share.go
index 16ea06b..23698a8 100644
--- a/internal/client/share.go
+++ b/internal/client/share.go
@@ -49,6 +49,7 @@ func NewShareManager(client *Client) *ShareManager {
 	client.OnRequestDevice = sm.handleRequestDevice
 	client.OnReleaseDevice = sm.handleReleaseDevice
 	client.OnTunnelData = sm.handleTunnelData
+	client.OnClientLeft = sm.handleClientLeft
 
 	return sm
 }
@@ -311,6 +312,22 @@ func (sm *ShareManager) handleReleaseDevice(busID, fromClient string) {
 	sm.broadcastDeviceList()
 }
 
+func (sm *ShareManager) handleClientLeft(msg *protocol.ClientLeft) {
+	sm.mu.RLock()
+	var toRelease []string
+	for busID, share := range sm.active {
+		if share.usedBy == msg.ClientID {
+			toRelease = append(toRelease, busID)
+		}
+	}
+	sm.mu.RUnlock()
+
+	for _, busID := range toRelease {
+		log.Printf("[share] auto-releasing %s (client %s left)", busID, msg.ClientID[:8])
+		sm.handleReleaseDevice(busID, msg.ClientID)
+	}
+}
+
 func (sm *ShareManager) handleTunnelData(tunnelID string, data []byte) {
 	sm.mu.RLock()
 	tunnel, exists := sm.tunnels[tunnelID]