0.4.0

Improvements in librdkafka archive download
Add global statistics callback
Use Time for timestamps, potentially breaking change if you rely on the previous behavior where it returns an integer with the number of milliseconds.
Bump librdkafka to 0.11.5
Implement TopicPartitionList in Ruby so we don't have to keep track of native objects.
Support committing a topic partition list
Add consumer assignment method

0.3.5

Fix crash when not waiting for delivery handles
Run specs on Ruby 2.5

0.3.4

Bump librdkafka to 0.11.3

0.3.3

Fix bug that prevent display of RdkafkaError message

0.3.2

add_topic now supports using a partition count
Add way to make errors clearer with an extra message
Show topics in subscribe error message
Show partition and topic in query watermark offsets error message

0.3.1

Bump librdkafka to 0.11.1
Officially support ranges in add_topic for topic partition list.
Add consumer lag calculator

0.3.0

Move both add topic methods to one add_topic in TopicPartitionList
Add committed offsets to consumer
Add query watermark offset to consumer

0.2.0

Some refactoring and add inline documentation

0.1.x

Initial working version including producing and consuming