Software Release Summary ContentsIntroductionDetails of new features and improvements that have been included in the latest release of the LightHouse 4 operating system are detailed here.LightHouse 4 v4.11.103 Release Notes (March 2026)The following changes have been implemented in release v4.11.103 of the LightHouse 4 operating system.First generation Axiom-Series software support notificationLightHouse 4 v4.11.103 will be the last supported feature version of the LightHouse 4 operating system for first generation Axiom-Series chartplotters.Multiple data sources (MDS)MDS is a Raymarine scheme for managing multiple sources of identical data types on the same network (e.g.: in an MFD network you may have more than one source of GNSS (GPS) position data).Fuel economy pageThe Evene fuel economy page is available when Yanmar (Evene) has been selected as the engine manufacturer in the Boat details settings menu.ECO modeECO mode provides an indication within Dashboard app engine dials that highlights when the engines are being driven efficiently. ECO mode is available when Yanmar (Evene) has been selected as the engine manufacturer in the Boat details settings menu, or when an engine transmits an ECO flag using a supported PGN.XTE data itemThe XTE (Cross Track Error) data item can be displayed in the Sidebar, Dashboard app and in Data overlays. The XTE data item includes the current XTE value, an indication of whether the XTE is to the left or right of the original track, and which way you need to steer to return to the original track.Navigation dataNavigation data requires a compatible sensor providing position related data. Active navigation is required for waypoint and route related data items.Search And Rescue Transponders (SART)If a SART is received a notification is displayed onscreen.STEDS messaging transmission FIDs and checksumsThe SITREP and Static data Functional IDs (FIDs) and FID checksum validation can be enabled or disabled from the Advanced set-up menu: Homescreen > Settings > Responder > Advanced set-up > Configure.Disable Bluetooth & Wi-Fi connectionsChartplotters configured using the First responder boating activity can disable Bluetooth and Wi-Fi connections.Cursor Range and Bearing info boxWhen the chartplotter is configured using the First responder activity, the Range and Bearing to the cursor’s location can be viewed dynamically in the Chart app.Command approved routesThe Command approved routes feature can be used to ensure that known safe or required routes are locked, to prevent them from being changed.Previous topic: Software detailsNext topic: General information