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@@ -1,3 +1,88 @@ +# 1.4.0 (Feb 6, 2018) + +This is a substantial release. Although there are no known 'showstopper' bugs as of release, +we do recommend you test any planned upgrade to your application prior to running in production. + +Some of the major changes include: +* We have officially dropped python 2.6 support +* The KafkaConsumer now includes a background thread to handle coordinator heartbeats +* API protocol handling has been separated from networking code into a new class, KafkaProtocol +* Added support for kafka message format v2 +* Refactored DNS lookups during kafka broker connections +* SASL authentication is working (we think) +* Removed several circular references to improve gc on close() + +Thanks to all contributors -- the state of the kafka-python community is strong! + +Detailed changelog are listed below: + +Client +* Fixes for SASL support + * Refactor SASL/gssapi support (dpkp #1248 #1249 #1257 #1262 #1280) + * Add security layer negotiation to the GSSAPI authentication (asdaraujo #1283) + * Fix overriding sasl_kerberos_service_name in KafkaConsumer / KafkaProducer (natedogs911 #1264) + * Fix typo in _try_authenticate_plain (everpcpc #1333) + * Fix for Python 3 byte string handling in SASL auth (christophelec #1353) +* Move callback processing from BrokerConnection to KafkaClient (dpkp #1258) +* Use socket timeout of request_timeout_ms to prevent blocking forever on send (dpkp #1281) +* Refactor dns lookup in BrokerConnection (dpkp #1312) +* Read all available socket bytes (dpkp #1332) +* Honor reconnect_backoff in conn.connect() (dpkp #1342) + +Consumer +* KAFKA-3977: Defer fetch parsing for space efficiency, and to raise exceptions to user (dpkp #1245) +* KAFKA-4034: Avoid unnecessary consumer coordinator lookup (dpkp #1254) +* Handle lookup_coordinator send failures (dpkp #1279) +* KAFKA-3888 Use background thread to process consumer heartbeats (dpkp #1266) +* Improve KafkaConsumer cleanup (dpkp #1339) +* Fix coordinator join_future race condition (dpkp #1338) +* Avoid KeyError when filtering fetchable partitions (dpkp #1344) +* Name heartbeat thread with group_id; use backoff when polling (dpkp #1345) +* KAFKA-3949: Avoid race condition when subscription changes during rebalance (dpkp #1364) +* Fix #1239 regression to avoid consuming duplicate compressed messages from mid-batch (dpkp #1367) + +Producer +* Fix timestamp not passed to RecordMetadata (tvoinarovskyi #1273) +* Raise non-API exceptions (jeffwidman #1316) +* Fix reconnect_backoff_max_ms default config bug in KafkaProducer (YaoC #1352) + +Core / Protocol +* Add kafka.protocol.parser.KafkaProtocol w/ receive and send (dpkp #1230) +* Refactor MessageSet and Message into LegacyRecordBatch to later support v2 message format (tvoinarovskyi #1252) +* Add DefaultRecordBatch implementation aka V2 message format parser/builder. (tvoinarovskyi #1185) +* optimize util.crc32 (ofek #1304) +* Raise better struct pack/unpack errors (jeffwidman #1320) +* Add Request/Response structs for kafka broker 1.0.0 (dpkp #1368) + +Bugfixes +* use python standard max value (lukekingbru #1303) +* changed for to use enumerate() (TheAtomicOption #1301) +* Explicitly check for None rather than falsey (jeffwidman #1269) +* Minor Exception cleanup (jeffwidman #1317) +* Use non-deprecated exception handling (jeffwidman a699f6a) +* Remove assertion with side effect in client.wakeup() (bgedik #1348) +* use absolute imports everywhere (kevinkjt2000 #1362) + +Test Infrastructure +* Use 0.11.0.2 kafka broker for integration testing (dpkp #1357 #1244) +* Add a Makefile to help build the project, generate docs, and run tests (tvoinarovskyi #1247) +* Add fixture support for 1.0.0 broker (dpkp #1275) +* Add kafka 1.0.0 to travis integration tests (dpkp #1365) +* Change fixture default host to localhost (asdaraujo #1305) +* Minor test cleanups (dpkp #1343) +* Use latest pytest 3.4.0, but drop pytest-sugar due to incompatibility (dpkp #1361) + +Documentation +* Expand metrics docs (jeffwidman #1243) +* Fix docstring (jeffwidman #1261) +* Added controlled thread shutdown to example.py (TheAtomicOption #1268) +* Add license to wheel (jeffwidman #1286) +* Use correct casing for MB (jeffwidman #1298) + +Logging / Error Messages +* Fix two bugs in printing bytes instance (jeffwidman #1296) + + # 1.3.5 (Oct 7, 2017) Bugfixes |