v2.0.2

• Readme fix only. No code changes.

v2.0.1

• Pass on the logger instance from the main Packer class into the helpers
• Allow unit tests to run with standalone PHPUnit

v2.0

• Various refactorings to split out large functions into more readable pieces
• Added a method to the Item interface to specify whether the item should be kept flat or not - this does not do anything yet, but adding now to avoid another major version bump later.

There are no bugfixes or packing logic changes in v2.0 compared to the latest v1.5 release - the bump in version number is purely because the interface has changed slightly.

v1.5.3

• Some refactoring to ease future maintenance

v1.5.2

• Ensure consistency of packing between PHP 5.x and PHP7/HHVM

v1.5.1

• Items were occasionally rotated to fit into space that was actually too small for them [IBBoard]

v1.5

• Add method for retrieving the volume utilisation of a packed box.
• Previously, when encountering an item that would not fit in the current box under evaluation, the algorithm would declare the box full and open a new one. Now it will continue to pack any remaining smaller items into the current box before moving on.
• Boxes and items with large volumes were sometimes not sorted properly because of issues with integer overflow inside SplMinHeap. This could lead to suboptimal results. [IBBoard]

v1.4.2

• In some cases, items that only fit in a single orientation were being recorded as fitting in the alternate, impossible one [TravisBernard]

v1.4.1

• Fix infinite loop that could occur in certain circumstances

v1.4

• Better stacking/depth calculations