v1.6.5

• Tweak composer configuration to make it easier to run the samples in the documentation

v2.4.4

• Improved stability algorithm
• Improved box selection for certain cases
• Some internal refactoring

v1.6.4

• Improved stability algorithm
• Improved box selection for certain cases
• Some internal refactoring

v3.1.0

• Optional 'Infallible' mode of packing to not throw an exception on error (e.g. item too large) but to continue packing the other items
• Improved stability algorithm
• Improved box selection for certain cases
• Some internal refactoring

v3.0.1

• Declare PackedBoxList as implementing Countable
• Improved item orientation selection for better packing

v2.4.3

• Improved item orientation selection for better packing

v1.6.3

• Improved item orientation selection for better packing

v3.0.0

Added

• Introduced PackedItems which are a wrapper around Items with positional and dimensional information (x, y, z co-ordinates of corner closest to origin, width/length/depth as packed)
• Added method to set threshold at which weight redistribution is disabled

Changed

• PackedBox now contains a PackedItemList of PackedItems (rather than an ItemList of Items)
• ConstrainedItem->canBePackedInBox now takes a PackedItemList of PackedItems (rather than an ItemList of Items)
• BoxList, ItemList, PackedBoxList have been altered to implement the Traversable interface rather than extend SplHeap directly so that any future changes to the internals will not need an API change

• Minimum PHP version is now 7.1 (v2 of BoxPacker with it's lower requirement of PHP 5.4 continues to be maintained)

Removed

• HHVM support now that project has a stated goal of no longer targeting PHP7 compatibility

v2.4.2

• Do a better job of packing identical items together (previously 2 distinct item types could be mixed if they had identical physical dimensions)

v1.6.2

• Do a better job of packing identical items together (previously 2 distinct item types could be mixed if they had identical physical dimensions)