Release notes for version 4.4

Apache Commons Collections is a project to develop and maintain collection classes based on and inspired by the JDK collection framework.

This 4.4 release is a minor and requires Java 8 or above. This release fixes several bugs present in previous releases of the 4.x branch.

All users are strongly encouraged to update to this release.

Compatibility

Java 8 or later is now required (version 4.2 required Java 7)
This release is source and binary compatible with the 4.0 release of Commons Collections with the exception that some classes in the functor package do not implement the Serializable interface anymore (see COLLECTIONS-580)

Major changes since 4.3

Implement Collection's removeIf()
Create a PropertiesFactory and SortedPropertiesFactory
Support Transformer for LazyList
Make use of FunctionalInterface

Security Changes

None.

For a full list of changes in this release, refer to the Change report.