- [KAFKA-1449] - Extend wire protocol to allow CRC32C 
- [KAFKA-2358] - Cluster collection returning methods should never return null 
- [KAFKA-2955] - Add Prompt to kafka-console-producer 
- [KAFKA-3714] - Allow users greater access to register custom streams metrics 
- [KAFKA-3878] - Exponential backoff for broker reconnect attempts (KIP-144) 
- [KAFKA-3989] - Add JMH module for Benchmarks 
- [KAFKA-3995] - Split the ProducerBatch and resend when received RecordTooLargeException 
- [KAFKA-4144] - Allow per stream/table timestamp extractor 
- [KAFKA-4195] - support throttling on request rate 
- [KAFKA-4266] - Replication Quota Tests: Ensure ZK updated before tests start 
- [KAFKA-4276] - REST configuration not visible in connector properties config files 
- [KAFKA-4291] - TopicCommand --describe shows topics marked for deletion as under-replicated and unavailable (KIP-137) 
- [KAFKA-4317] - RocksDB checkpoint files lost on kill -9 
- [KAFKA-4613] - Treat null-key records the same way for joins and aggreations 
- [KAFKA-4636] - Per listener security setting overrides (KIP-103) 
- [KAFKA-4684] - Kafka does not offer kafka-configs.bat on Windows box 
- [KAFKA-4702] - Parametrize streams benchmarks to run at scale 
- [KAFKA-4709] - Error message from Struct.validate() should include the name of the offending field. 
- [KAFKA-4722] - Add application.id to StreamThread name 
- [KAFKA-4733] - Improve Streams Reset Tool console output 
- [KAFKA-4769] - Add Float serializer, deserializer, serde 
- [KAFKA-4772] - Exploit #peek to implement #print() and other methods 
- [KAFKA-4773] - The Kafka build should run findbugs 
- [KAFKA-4774] - Inner classes which don't need a reference to the outer class should be static 
- [KAFKA-4775] - Fix findbugs warnings in kafka-tools 
- [KAFKA-4839] - throw NoOffsetForPartitionException once for all assigned partitions from poll 
- [KAFKA-4843] - Stream round-robin scheduler is inneficient 
- [KAFKA-4922] - Fix several FindBugs warnings in Clients and Connect 
- [KAFKA-4943] - SCRAM secret's should be better protected with Zookeeper ACLs 
- [KAFKA-4965] - set internal.leave.group.on.close to false in KafkaStreams 
- [KAFKA-4982] - Add listener tag to socket-server-metrics.connection-... metrics (KIP-136) 
- [KAFKA-5036] - Followups from KIP-101 
- [KAFKA-5052] - We shouldn't pass the underlying exception to RetriableCommitFailedException when an async offset commit fails. 
- [KAFKA-5068] - Optionally print out metrics after running the perf tests 
- [KAFKA-5091] - ReassignPartitionsCommand should protect against empty replica list assignment 
- [KAFKA-5094] - Censor SCRAM config change logging 
- [KAFKA-5104] - DumpLogSegments should not open index files with `rw` 
- [KAFKA-5108] - Add support for reading PID snapshot files to DumpLogSegments 
- [KAFKA-5111] - Improve internal Task APIs 
- [KAFKA-5112] - Trunk compatibility tests should test against 0.10.2 
- [KAFKA-5118] - Improve message for Kafka failed startup with non-Kafka data in data.dirs 
- [KAFKA-5137] - Controlled shutdown timeout message improvement 
- [KAFKA-5161] - reassign-partitions to check if broker of ID exists in cluster 
- [KAFKA-5166] - Add option "dry run" to Streams application reset tool 
- [KAFKA-5176] - AdminClient: add controller and clusterId methods to DescribeClusterResults 
- [KAFKA-5194] - KIP-153: Include only client traffic in BytesOutPerSec metric 
- [KAFKA-5210] - Application Reset Tool does not need to seek for internal topics 
- [KAFKA-5218] - New Short serializer, deserializer, serde 
- [KAFKA-5257] - Change Default unclean.leader.election.enabled from True to False 
- [KAFKA-5277] - Sticky Assignor should not cache the calculated assignment (KIP-54 follow-up) 
- [KAFKA-5311] - Support ExtendedDeserializer in Kafka Streams 
- [KAFKA-5333] - Remove Broker ACL resource type 
- [KAFKA-5405] - Request log should log throttle time 
- [KAFKA-5411] - Generate javadoc for AdminClient and show configs in documentation 
- [KAFKA-5446] - Annoying braces showed on log.error using streams