In light of the recent blockers that were reported in the past few days I'm now closing RC1. These blockers have now been resolved and RC2 is almost ready, so I will start a new thread for this new release candidate.
Many thanks to everyone who tested RC1. Konstantine On Tue, Aug 31, 2021 at 6:34 PM Konstantine Karantasis < kkaranta...@apache.org> wrote: > > Hello Kafka users, developers and client-developers, > > This is the second release candidate for Apache Kafka 3.0.0. > It corresponds to a major release that includes many new features, > including: > > * The deprecation of support for Java 8 and Scala 2.12. > * Kafka Raft support for snapshots of the metadata topic and > other improvements in the self-managed quorum. > * Deprecation of message formats v0 and v1. > * Stronger delivery guarantees for the Kafka producer enabled by default. > * Optimizations in OffsetFetch and FindCoordinator requests. > * More flexible Mirror Maker 2 configuration and deprecation of > Mirror Maker 1. > * Ability to restart a connector's tasks on a single call in Kafka Connect. > * Connector log contexts and connector client overrides are now enabled > by default. > * Enhanced semantics for timestamp synchronization in Kafka Streams. > * Revamped public API for Stream's TaskId. > * Default serde becomes null in Kafka Streams and several > other configuration changes. > > You may read and review a more detailed list of changes in the 3.0.0 blog > post draft here: > > https://blogs.apache.org/roller-ui/authoring/preview/kafka/?previewEntry=what-s-new-in-apache6 > > Release notes for the 3.0.0 release: > https://home.apache.org/~kkarantasis/kafka-3.0.0-rc1/RELEASE_NOTES.html > > *** Please download, test and vote by Wednesday, September 8, 2021 *** > > Kafka's KEYS file containing PGP keys we use to sign the release: > https://kafka.apache.org/KEYS > > * Release artifacts to be voted upon (source and binary): > https://home.apache.org/~kkarantasis/kafka-3.0.0-rc1/ > > * Maven artifacts to be voted upon: > https://repository.apache.org/content/groups/staging/org/apache/kafka/ > > * Javadoc: > https://home.apache.org/~kkarantasis/kafka-3.0.0-rc1/javadoc/ > > * Tag to be voted upon (off 3.0 branch) is the 3.0.0 tag: > https://github.com/apache/kafka/releases/tag/3.0.0-rc1 > > * Documentation: > https://kafka.apache.org/30/documentation.html > > * Protocol: > https://kafka.apache.org/30/protocol.html > > * Successful Jenkins builds for the 3.0 branch: > Unit/integration tests: > https://ci-builds.apache.org/blue/organizations/jenkins/Kafka%2Fkafka/detail/3.0/121/pipeline/ > (only few flaky failures) > System tests: > https://jenkins.confluent.io/job/system-test-kafka/job/3.0/57/ > > /************************************** > > Thanks, > Konstantine >
