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  • Release Plan 2.7.0 (Nov 2020)
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Release Dates

  • KIP Freeze: Sep 30, 2020 (a KIP must be accepted by this date in order to be considered for this release)
  • Feature Freeze: Oct 7, 2020 (major features merged & working on stabilization, minor features have PR, release branch cut; anything not in this state will be automatically moved to the next release in JIRA)
  • Code Freeze: Oct 21, 2020
  • Released Dec 21, 2020


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 target release date is fixed at ~2w after code freeze, RCs will roll out as needed until the release vote passes.

The release manager is Bill Bejeck

How to Contribute

Before code freeze:

  • Participate in votes and discussions to land or postpone the open KIPs.
  • Review patches. We anticipate that this release will be bottlenecked mostly on reviews. The more reviewers, the more content we can fit in.
  • Write unit/integration/system tests. We want to preserve the tradition of high-quality releases in Apache Kafka. 

After code freeze:

  • Write more unit/integration/system testsWe want to preserve the tradition of high-quality releases in Apache Kafka.
  • Improve documentation
  • Test the release candidates
  • Open blocker JIRAs on critical issues found. Open non-blocker JIRAs on any other issues found.
  • Fix critical bugs
  • Review bug fixes
  • Vote on RCs. Even though only PMC votes are binding, community votes are super important as we evaluate the readiness of the release

Open Issues

Key Summary T Created Updated Due Assignee Reporter P Status Resolution
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Also feel free to refer to this release page for more details of the included tickets.

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-662: Throw Exception when Source Topics of a Streams App are Deleted

KAFKA-10355 - Getting issue details... STATUS

Kafka Streams
KIP-654: Aborted transaction with non-flushed data should throw a non-fatal exception

KAFKA-10186 - Getting issue details... STATUS

Kafka Clients
KIP-651 - Support PEM format for SSL certificates and private key KAFKA-10338 - Getting issue details... STATUS


Core
KIP-648: Renaming getter method for Interactive Queries

KAFKA-10316 - Getting issue details... STATUS

Kafka Streams
KIP-632: Add DirectoryConfigProvider

KAFKA-7370 - Getting issue details... STATUS KAFKA-10211 - Getting issue details... STATUS


KIP-626: Rename StreamsConfig config variable name

KAFKA-10168 - Getting issue details... STATUS

Kafka Streams
KIP-620 Deprecate ConsumerConfig#addDeserializerToConfig and ProducerConfig#addSerializerToConfig

KAFKA-10044 - Getting issue details... STATUS

Kafka Clients
KIP-617: Allow Kafka Streams State Stores to be iterated backwards

KAFKA-9929 - Getting issue details... STATUS

Kafka Streams
KIP-616: Rename implicit Serdes instances in kafka-streams-scala

KAFKA-10020 - Getting issue details... STATUS

Kafka Streams
KIP-613: Add end-to-end latency metrics to Streams

KAFKA-10054 - Getting issue details... STATUS

Kafka Streams
KIP-612: Ability to Limit Connection Creation Rate on Brokers

KAFKA-10023 - Getting issue details... STATUS

Core
KIP-607: Add Metrics to Kafka Streams to Report Properties of RocksDB

KAFKA-9924 - Getting issue details... STATUS

Kafka Streams
KIP-601: Configurable socket connection timeout in NetworkClient

KAFKA-9893 - Getting issue details... STATUS

Core
KIP-599: Throttle Create Topic, Create Partition and Delete Topic Operations

KAFKA-9915 - Getting issue details... STATUS

Core
KIP-597: MirrorMaker2 internal topics Formatters

KAFKA-10232 - Getting issue details... STATUS


KIP-584: Versioning scheme for features

KAFKA-9755 - Getting issue details... STATUS


KIP-572: Improve timeouts and retries in Kafka Streams

KAFKA-9274 - Getting issue details... STATUS

Kafka Streams
KIP-554: Add Broker-side SCRAM Config API

KAFKA-10259 - Getting issue details... STATUS

Core
KIP-545: support automated consumer offset sync across clusters in MM 2.0

KAFKA-9076 - Getting issue details... STATUS

Mirror Maker 2.0
KIP-497: Add inter-broker API to alter ISR

KAFKA-8836 - Getting issue details... STATUS

Core
KIP-478 - Strongly typed Processor API

KAFKA-8410 - Getting issue details... STATUS

Kafka Streams
KIP-450: Sliding Window Aggregations in the DSL

KAFKA-5636 - Getting issue details... STATUS

Kafka Streams
KIP-431: Support of printing additional ConsumerRecord fields in DefaultMessageFormatter

KAFKA-6733 - Getting issue details... STATUS

Kafka Tools


Postponed to subsequent release


KIPJIRAComponent
KIP-671: Introduce Kafka Streams Specific Uncaught Exception Handler

KAFKA-9331 - Getting issue details... STATUS KAFKA-6943 - Getting issue details... STATUS ,

Kafka Streams
KIP-653: Upgrade log4j to log4j2

KAFKA-9366 - Getting issue details... STATUS


KIP-623: Add "internal-topics" option to streams application reset tool

KAFKA-6435 - Getting issue details... STATUS

Kafka Streams
KIP-608 - Expose Kafka Metrics in Authorizer

KAFKA-9958 - Getting issue details... STATUS

Core
KIP-590: Redirect Zookeeper Mutation Protocols to The Controller

KAFKA-9705 - Getting issue details... STATUS

Core
KIP-589 Add API to update Replica state in Controller

KAFKA-9837 - Getting issue details... STATUS

Core
KIP-588: Allow producers to recover gracefully from transaction timeouts

KAFKA-9803 - Getting issue details... STATUS

Kafka Clients
KIP-580: Exponential Backoff for Kafka Clients

KAFKA-9800 - Getting issue details... STATUS

Kafka Clients
KIP-508: Make Suppression State Queriable

KAFKA-8403 - Getting issue details... STATUS

Kafka Streams
KIP-466: Add support for List<T> serialization and deserialization

KAFKA-8326 - Getting issue details... STATUS


KIP-418: A method-chaining way to branch KStream

KAFKA-5488 - Getting issue details... STATUS

Kafka Streams
KIP-373: Allow users to create delegation tokens for other users

KAFKA-6945 - Getting issue details... STATUS


KIP-359: Verify leader epoch in produce requests

KAFKA-7383 - Getting issue details... STATUS

Core
KIP-280: Enhanced log compaction

KAFKA-7061 - Getting issue details... STATUS

Core
KIP-216: IQ should throw different exceptions for different errors

KAFKA-5876 - Getting issue details... STATUS

Kafka Streams
KIP-81: Bound Fetch memory usage in the consumer

KAFKA-4133 - Getting issue details... STATUS

Kafka Clients
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