*****GPS 12/GPS 12XL software version 3.53 This software is only compatible with GPS 12 and GPS 12XL units with operating software versions 3.50 to 3.52. This software corrects the following in older versions of the product: * Corrects a problem in GPS 12 and GPS 12XL unit operating software versions 3.50 to 3.52 which may cause the unit to erroneously turn itself off. *****This software is only compatible with GPS 12 units with operating software versions 4.00 to 4.60. Changes made from version 4.58 to 4.60: * Updated French translations. Changes made from version 4.57 to 4.58: * When receiving a waypoint from NMEA input, initializes the waypoint symbol to a simple dot. * Updated magnetic variation tables based on the new IGRF 2000 model. * Corrected Loran TD position format secondary station "W - Whisky" for chain number GRI-9960. Changes made from version 4.56 to 4.57: * Enhanced unit battery life with Power Saver mode. * Added track area calculation feature.