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Updates & Downloads


GPSMAP 66sr software version 4.90

as of November 17, 2021

Use Garmin Express to install this file.

(21.63 MB)

View system requirements

Notes:


Change History

Changes made from version 3.80 to 4.90:

Changes made from version 3.30 to 3.80:

Changes made from version 2.90 to 3.30:

Changes made from version 2.90 to 3.30:

Changes made from version 2.80 to 2.90:

Changes made from version 2.70 to 2.80:

Changes made from version to 2.70:

System requirements

  1. IBM-compatible PC running Windows 2000 or later operating system and an available USB port.