3.0.0

• All value objects are now immutable - calling a conversion function on them now returns a new object rather than modifying the existing one
• Support for accepting 2, 4, 8 and 10 figure Ordnance Survey references (6 figure was already supported)
• OSRef::fromSixFigureReference() has been removed, use OSRef::fromGridReference() instead
• OSRef::to[Two/Four/Six/Eight/Ten]FigureReference() have been removed, use OSRef::toGridReference($length) instead
• Minimum PHP version is now 7.1, HHVM no longer supported now that project has a stated goal of no longer targeting PHP7 compatibility

v2.1

• Add distance calculations for grid-based co-ordinate systems to complement the existing lat/long implementation

v2.0.3

• Fix confusing docblock

v2.0.2

• Ensure consistency of units

v2.0.1

• Add support for 2, 4, 8 and 10 figure Ordnance Survey references (6 figure was already supported) [stevegoddard]

v2

• Major refactoring, breaks compatibility with previous API (hopefully for the better!)
• 3D co-ordinates
• Irish Grid and ITM support

v1.1.2

• Fix issue with longitude in Helmert transform outside the ±90° range (tests by caffme, fix by me)

v1.1.1

• Corrected bug in original code where OS 6-figure grid references were sometimes off by 1

Just cleanup

1.1

Fix docblock

Initial release

1.0

Fix issue with composer autoload