v1.6.1

v1.6.1 is a feature release:

• KIP-429 - Incremental consumer rebalancing support.
• OAUTHBEARER support.

Fixes

• Add return_record_name=True to AvroDeserializer (@slominskir, #1028)
• Fix deprecated schema.Parse call (@casperlehmann, #1006).
• Make reader schema optional in AvroDeserializer (@97nitt, #1000).
• Add **kwargs to legacy AvroProducer and AvroConsumer constructors to
  support all Consumer and Producer base class constructor arguments, such
  as logger (@venthur, #699).
• Add bool for permanent schema delete (@slominskir, #1029).
• The avro package is no longer required for Schema-Registry support (@jaysonsantos, #950).
• Only write to schema cache once, improving performance (@fimmtiu, #724).
• Improve Schema-Registry error reporting (@jacopofar, #673).
• producer.flush() could return a non-zero value without hitting the specified timeout.

confluent-kafka-python is based on librdkafka v1.6.1, see the librdkafka release notes for a complete list of changes, enhancements, fixes and upgrade considerations.