v1.4.0 is a feature release. It is supported for all usage.

Enhancements

1. References librdkafka v2.11.0. Refer to the librdkafka v2.11.0 release notes for more information.
2. [KIP-848] describeGroups() now supports KIP-848 introduced consumer groups. Two new fields for consumer group type and target assignment have also been added. Type defines whether this group is a classic or consumer group. Target assignment is only valid for the consumer protocol and it defaults to being undefined (#329).
3. [KIP-848] Admin API for listing consumer groups now has an optional filter to return only groups of given types (#328).
4. Add support for Node v24 pre-built binaries (@weyert, #307, #337).