Release Dates

(all are in 2024)

  • KIP Freeze: 15th May (Wednesday)
    • A KIP must be accepted by this date in order to be considered for this release. Note, any KIP that may not be implemented in a week, or that might destabilize the release, should be deferred.
  • Feature Freeze: 29th May (Wednesday)
    • major features merged & working on stabilisation, minor features have PR, release branch cut; anything not in this state will be automatically moved to the next release in JIRA
  • Code Freeze: 12th June (Wednesday)
  • At least two weeks of stabilization will follow Code Freeze, meaning we expect to release no earlier than June 26th. We will move as fast as we can, and aim completion the earliest we can in June.


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 Josep Prat 

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, as it usually happens, 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 tests. We 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 release candidates. 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 the 3.8.0 release page for more details of the included tickets (requires logging in to the Apache Kafka Jira project).

Planned KIP Content

Note: The planned content is not binding - the final content will be based on the features committed by the branch-cutting date.

See Kafka Improvement Proposals for the full list of KIPs.

If you do not see your KIP here and want to, please reply to the mailing list thread about the release!

KIPJIRAComponentStatus
KIP-1028: Docker Official Image for Apache Kafka

KAFKA-16373 - Getting issue details... STATUS

buildDone
KIP-1036: Extend RecordDeserializationException exception

KAFKA-16507 - Getting issue details... STATUS

clientsDone
KIP-1019: Expose method to determine Metric Measurability

KAFKA-16280 - Getting issue details... STATUS

metricsDone
KIP-1004: Enforce tasks.max property in Kafka Connect

KAFKA-15575 - Getting issue details... STATUS

connectDone
KIP-989: Improved StateStore Iterator metrics for detecting leaks

KAFKA-15541 - Getting issue details... STATUS

streamsDone
KIP-993: Allow restricting files accessed by File and Directory ConfigProviders

KAFKA-14822 - Getting issue details... STATUS

clientsDone
KIP-989: Improved StateStore Iterator metrics for detecting leaks

KAFKA-15541 - Getting issue details... STATUS

streamsDone
KIP-974: Docker Image for GraalVM based Native Kafka Broker

KAFKA-15444 - Getting issue details... STATUS

buildDone
KIP-924: customizable task assignment for Streams

KAFKA-15045 - Getting issue details... STATUS

streamsDone
KIP-813: Shareable State Stores

KAFKA-10892 - Getting issue details... STATUS

streamsDone

KIP-719: Deprecate Log4J Appender

KAFKA-12399 - Getting issue details... STATUS

log4j-appenderDone

KIP-390: Support Compression Level

KAFKA-7632 - Getting issue details... STATUS

coreDone

Postponed to subsequent release

KIPJIRAComponentStatus
KIP-1033: Add Kafka Streams exception handler for exceptions occurring during processing

KAFKA-16448 - Getting issue details... STATUS

streamsKIP accepted, WIP
KIP-1020: Move `window.size.ms` and `windowed.inner.serde.class` from `StreamsConfig` to TimeWindowedDe/Serializer class

KAFKA-16260 - Getting issue details... STATUS

streamsKIP accepted, waiting for PR
KIP-942: Add Power(ppc64le) support

KAFKA-15062 - Getting issue details... STATUS

buildKIP accepted but PR not merged
KIP-892: Transactional Semantics for StateStores

KAFKA-14412 - Getting issue details... STATUS

streamsKIP accepted, on-hold due to KIP-1035
KIP-770: Replace "buffered.records.per.partition" & "cache.max.bytes.buffering" with "{statestore.cache}/{input.buffer}.max.bytes"

KAFKA-13152 - Getting issue details... STATUS

streamsKIP accepted (partially implemented in 3.4)
KIP-759: Unneeded repartition canceling

KAFKA-4835 - Getting issue details... STATUS

KAFKA-10844 - Getting issue details... STATUS

streamsKIP accepted, WIP
KIP-1028: Docker Official Image for Apache Kafka

KAFKA-16373 - Getting issue details... STATUS

buildKIP approved
KIP-1023: Follower fetch from tiered offset

KAFKA-15433 - Getting issue details... STATUS

coreKIP approved
KIP-1007: Introduce Remote Storage Not Ready Exception

KAFKA-15876 - Getting issue details... STATUS

storageKIP approved
KIP-1005: Expose EarliestLocalOffset and TieredOffset

KAFKA-15857 - Getting issue details... STATUS

storageKIP approved
KIP-996: Pre-Vote

KAFKA-16164 - Getting issue details... STATUS

kraftKIP approved
KIP-994: Minor Enhancements to ListTransactions and DescribeTransactions APIs

KAFKA-15923 - Getting issue details... STATUS

clientsKIP approved
KIP-977: Partition-Level Throughput Metrics

KAFKA-15447 - Getting issue details... STATUS

metricsKIP approved
KIP-966: Eligible Leader Replicas

KAFKA-15332 - Getting issue details... STATUS

coreKIP approved
KIP-956 Tiered Storage Quotas

KAFKA-15265 - Getting issue details... STATUS

coreKIP approved
KIP-950: Tiered Storage Disablement

KAFKA-15132 - Getting issue details... STATUS

core KIP approved
KIP-853: KRaft Controller Membership Changes

KAFKA-14094 - Getting issue details... STATUS

kraftUnder Discussion
KIP-1005: Expose EarliestLocalOffset and TieredOffset

KAFKA-15857 - Getting issue details... STATUS

storage

Partially done

KIP-994: Minor Enhancements to ListTransactions and DescribeTransactions APIs

KAFKA-15923 - Getting issue details... STATUS

clientsPartially done
KIP-956 Tiered Storage Quotas

KAFKA-15265 - Getting issue details... STATUS

corePartially done







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