1.发布时间

KIP Freeze时间：2020年5月20日

Feature Freeze时间：2020年5月27日

Code Freeze时间：2020年6月10日

Release时间：2020年8月3日

2.版本需求

Kafka2.6.0版本对以下30个特性进行了开发。

KIP-131 - Add access to OffsetStorageReader from SourceConnector

KIP-158: Kafka Connect should allow source connectors to set topic-specific settings for new topics

KIP-221: Enhance DSL with Connecting Topic Creation and Repartition Hint

KIP-401: TransformerSupplier/ProcessorSupplier StateStore connecting

KIP-437: Custom replacement for MaskField SMT

KIP-441: Smooth Scaling Out for Kafka Streams (additional parts in 2.6)

KIP-444: Augment metrics for Kafka Streams (additional parts in 2.6)

KIP-446: Add changelog topic configuration to KTable suppress

KIP-447: Producer scalability for exactly once semantics (remainder in 2.6)

KIP-518: Allow listing consumer groups per state

KIP-519: Make SSL context/engine configuration extensible

KIP-546: Add Client Quota APIs to the Admin Client (remainder in 2.6)

KIP-551: Expose disk read and write metrics

KIP-557: Add emit on change support for Kafka Streams (partially complete in 2.6)

KIP-568: Explicit rebalance triggering on the Consumer

KIP-569: DescribeConfigsResponse - Update the schema to include additional metadata information of the field

KIP-570: Add leader epoch in StopReplicaRequest

KIP-571: Add option to force remove members in StreamsResetter

KIP-573: Enable TLSv1.3 by default

KIP-574: CLI Dynamic Configuration with file input

KIP 577: Allow HTTP Response Headers to be Configured for Kafka Connect

KIP-585: Filter and Conditional SMTs

KIP-586: Deprecate commit records without record metadata

KIP-594: Expose output topic names from TopologyTestDriver

KIP-602: Change default value for client.dns.lookup

KIP-604: Remove ZooKeeper Flags from the Administrative Tools (partially complete in 2.6)

KIP-605: Expand Connect Worker Internal Topic Settings

KIP-606: Add Metadata Context to MetricsReporter

KIP-610: Error Reporting in Sink Connectors

KIP-613: Add end-to-end latency metrics to Streams (partially complete in 2.6)