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Release Dates

  • KIP Freeze: Jan 27, 2021 (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: Feb 3, 2021 (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: Feb 17, 2021
  • At least two weeks of stabilization will follow code freeze.
  • Released: 19 April 2021


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, RCs will roll out as needed until the release vote passes.

The release manager is John Roesler

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

Jira
serverASF JIRA
columnskey,summary,type,created,updated,due,assignee,reporter,priority,status,resolution
maximumIssues20
jqlQueryproject = KAFKA AND fixVersion = 2.8.0 AND status not in (resolved, closed) ORDER BY priority DESC, status DESC, updated DESC
serverId5aa69414-a9e9-3523-82ec-879b028fb15b

...

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-700: Add Describe Cluster API

Jira
serverASF JIRA
serverId5aa69414-a9e9-3523-82ec-879b028fb15b
keyKAFKA-10851

Core
KIP-696: Update Streams FSM to clarify ERROR state meaning

Jira
serverASF JIRA
serverId5aa69414-a9e9-3523-82ec-879b028fb15b
keyKAFKA-10555

Streams
KIP-689: Extend `StreamJoined` to allow more store configs

Jira
serverASF JIRA
serverId5aa69414-a9e9-3523-82ec-879b028fb15b
keyKAFKA-9126

Streams
KIP-684 - Support mutual TLS authentication on SASL_SSL listeners

Jira
serverASF JIRA
serverId5aa69414-a9e9-3523-82ec-879b028fb15b
keyKAFKA-10700

Core
KIP-680: TopologyTestDriver should not require a Properties argument

Jira
serverASF JIRA
serverId5aa69414-a9e9-3523-82ec-879b028fb15b
keyKAFKA-10629

Streams
KIP-676: Respect logging hierarchy

Jira
serverASF JIRA
serverId5aa69414-a9e9-3523-82ec-879b028fb15b
keyKAFKA-10469

Core
KIP-673: Emit JSONs with new auto-generated schema

Jira
serverASF JIRA
serverId5aa69414-a9e9-3523-82ec-879b028fb15b
keyKAFKA-10525

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

Jira
serverASF JIRA
serverId5aa69414-a9e9-3523-82ec-879b028fb15b
keyKAFKA-10810

Streams
KIP-663: API to Start and Shut Down Stream Threads

Jira
serverASF JIRA
serverId5aa69414-a9e9-3523-82ec-879b028fb15b
keyKAFKA-6943

Streams
KIP-661: Expose task configurations in Connect REST API

Jira
serverASF JIRA
serverId5aa69414-a9e9-3523-82ec-879b028fb15b
keyKAFKA-10833

Connect
KIP-659: Improve TimeWindowedDeserializer and TimeWindowedSerde to handle window size

Jira
serverASF JIRA
serverId5aa69414-a9e9-3523-82ec-879b028fb15b
keyKAFKA-10366

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

Jira
serverASF JIRA
serverId5aa69414-a9e9-3523-82ec-879b028fb15b
keyKAFKA-10749

Core
KIP-572: Improve timeouts and retries in Kafka Streams

Jira
serverASF JIRA
serverId5aa69414-a9e9-3523-82ec-879b028fb15b
keyKAFKA-9274

Streams


Postponed to subsequent release


KIPJIRAComponent
KIP-679: Producer will enable the strongest delivery guarantee by default
Jira
serverASF JIRA
columnskey,summary,type,created,updated,due,assignee,reporter,priority,status,resolution
serverId5aa69414-a9e9-3523-82ec-879b028fb15b
keyKAFKA-10619
Core

Jira
serverASF JIRA
serverId5aa69414-a9e9-3523-82ec-879b028fb15b
keyKAFKA-10062

Streams
KIP-695: Further Improve Kafka Streams Timestamp Synchronization

Jira
serverASF JIRA
columnskey,summary,type,created,updated,due,assignee,reporter,priority,status,resolution
serverId5aa69414-a9e9-3523-82ec-879b028fb15b
keyKAFKA-10091

Consumer, Streams

...