Compatibility
- Fix for python 3.7 support: remove 'async' keyword from SimpleProducer (dpkp #1454)
Client
- Improve BrokerConnection initialization time (romulorosa #1475)
- Ignore MetadataResponses with empty broker list (dpkp #1506)
- Improve connection handling when bootstrap list is invalid (dpkp #1507)
Consumer
- Check for immediate failure when looking up coordinator in heartbeat thread (dpkp #1457)
Core / Protocol
- Always acquire client lock before coordinator lock to avoid deadlocks (dpkp #1464)
- Added AlterConfigs and DescribeConfigs apis (StephenSorriaux #1472)
- Fix CreatePartitionsRequest_v0 (StephenSorriaux #1469)
- Add codec validators to record parser and builder for all formats (tvoinarovskyi #1447)
- Fix MemoryRecord bugs re error handling and add test coverage (tvoinarovskyi #1448)
- Force lz4 to disable Kafka-unsupported block linking when encoding (mnito #1476)
- Stop shadowing
ConnectionError(jeffwidman #1492)
Documentation
- Document methods that return None (jeffwidman #1504)
- Minor doc capitalization cleanup (jeffwidman)
- Adds add_callback/add_errback example to docs (Berkodev #1441)
- Fix KafkaConsumer docstring for request_timeout_ms default (dpkp #1459)
Test Infrastructure
- Skip flakey SimpleProducer test (dpkp)
- Fix skipped integration tests if KAFKA_VERSION unset (dpkp #1453)
Logging / Error Messages
- Stop using deprecated log.warn() (jeffwidman)
- Change levels for some heartbeat thread logging (dpkp #1456)
- Log Heartbeat thread start / close for debugging (dpkp)