Release Dates


These dates are goals and subject to change, but we expect to stay on the Time Based Release Plan unless unexpected critical issues come up. While the earliest possible release date is 2w after code freeze, release candidates (RCs) will roll out as needed until the release vote passes.

The release manager is Bruno Cadonna 

How to Contribute

Before code freeze:

After code freeze:

Open Issues


Also feel free to refer to this release page for more details of the included tickets (requires log in to the Apache Kafka Jira project).

Planned KIP Content

Note: The planned content is not binding - final content will be based the features committed by branch-cutting date. See Kafka Improvement Proposals for the full list of KIPs.

KIPJIRAComponent
KIP-815: Support max-timestamp in GetOffsetShell

Tools
KIP-814: Static membership protocol should let the leader skip assignment

Core/Clients
KIP-811: Add config repartition.purge.interval.ms to Kafka Streams

Streams
KIP-810: Allow producing records with null values in Kafka Console Producer

Clients
KIP-808: Add support for different unix precisions in TimestampConverter SMT

Connect
KIP-806: Add session and window query over kv-store in IQv2

Streams
KIP-805: Add range and scan query over kv-store in IQv2

Streams
KIP-801: Implement an Authorizer that stores metadata in __cluster_metadata

Core
KIP-800: Add reason to JoinGroupRequest and LeaveGroupRequest

Core/Clients
KIP-798: Add possibility to write kafka headers in Kafka Console Producer

Clients
KIP-796: Interactive Query v2

Streams
KIP-791: Add Record Metadata to StateStoreContext

Streams
KIP-788: Allow configuring num.network.threads per listener

Core
KIP-784: Add top-level error code field to DescribeLogDirsResponse

Core/Clients
KIP-779: Allow Source Tasks to Handle Producer Exceptions

Connect
KIP-769: Connect APIs to list all connector plugins and retrieve their configuration definitions

Connect
KIP-764: Configurable backlog size for creating Acceptor

Core
KIP-708: Rack awareness for Kafka Streams

Streams
KIP-704: Send a hint to the partition leader to recover the partition

Core
KIP-591: Add Kafka Streams config to set default state store

Streams
KIP-471: Expose RocksDB Metrics in Kafka Streams (implementation completed)

Streams


Postponed to subsequent release

KIPJIRAComponent
KIP-812: Introduce another form of the `KafkaStreams.close()` API that forces the member to leave the consumer group

Streams
KIP-726: Make the "cooperative-sticky, range" as the default assignor

Clients
KIP-719: Deprecate Log4J Appender

Core
KIP-709: Extend OffsetFetch requests to accept multiple group ids.

Core/Clients
KIP-653: Upgrade log4j to log4j2

All
KIP-627: Expose Trogdor-specific JMX Metrics for Tasks and Agents

Trogdor
KIP-618: Exactly-Once Support for Source Connectors

Connect
KIP-405: Kafka Tiered Storage

Core
KIP-390: Support Compression Level

Core/Clients