v5.1.0

Added

• Support for 3D projected coordinates
• Support for custom coordinate reference systems and custom conversions

Changed

• Updates to data for ITRF, WGS84, Australia, Belgium, Canada, France, Germany, Iceland, Indonesia, Ireland, Japan, Luxembourg, Norway, North Macedonia, UK and USA
• Some internal simplifications and optimisations

Fixed

• Improved handling of longitudes greater than 180 degrees
• Corrected conversion of geocentric coordinates to geographic coordinates when using a non-Greenwich prime meridian