Kafka 3.2 → 3.3 Upgrade Guide

Kafka 3.3 brings 11 new configs, removes 0, and changes 11 defaults compared to 3.2.

+11 configs 11 defaults changed 14 KIPs

New Configurations

Config	Category	Default
early.start.listeners	broker	null
metadata.max.idle.interval.ms	broker	500
sasl.server.max.receive.size	broker	524288
partitioner.adaptive.partitioning.enable	producer	true
partitioner.availability.timeout.ms	producer	0
partitioner.ignore.keys	producer	false
exactly.once.source.support	connect_default	disabled
exactly.once.support	connect_source	requested
offsets.storage.topic	connect_source	null
transaction.boundary	connect_source	poll
transaction.boundary.interval.ms	connect_source	null

Changed Defaults

Config	Old Default	New Default
inter.broker.protocol.version	3.2-IV0	3.3-IV3
ssl.enabled.protocols	TLSv1.2	TLSv1.2,TLSv1.3
ssl.protocol	TLSv1.2	TLSv1.3
ssl.enabled.protocols	TLSv1.2	TLSv1.2,TLSv1.3
ssl.protocol	TLSv1.2	TLSv1.3
partitioner.class	org.apache.kafka.clients.producer.internals.DefaultPartitioner	null
ssl.enabled.protocols	TLSv1.2	TLSv1.2,TLSv1.3
ssl.protocol	TLSv1.2	TLSv1.3
ssl.enabled.protocols	TLSv1.2	TLSv1.2,TLSv1.3
ssl.protocol	TLSv1.2	TLSv1.3
state.dir	/var/folders/ds/dq10m26j2kjcypywn_lt0b0m0000gn/T//kafka-streams	/var/folders/8t/s723rqwx1h78qt3w98cp_gsm0000gp/T//kafka-streams

Protocol Changes

DescribeAcls v3 · DescribeAcls v3 · CreateAcls v3 · CreateAcls v3 · DeleteAcls v3 · DeleteAcls v3 · DescribeLogDirs v4 · DescribeLogDirs v4 · CreateDelegationToken v3 · CreateDelegationToken v3 · DescribeDelegationToken v3 · DescribeDelegationToken v3 · DescribeQuorum v1 · DescribeQuorum v1 · UpdateFeatures v1 · UpdateFeatures v1

KIPs Released

KIP-373 Allow users to create delegation tokens for other users
KIP-778 KRaft to KRaft Upgrades
KIP-794 Strictly Uniform Sticky Partitioner
KIP-820 Extend KStream process with new Processor API
KIP-824 Allowing dumping segmentlogs limiting the batches in the output
KIP-827 Expose logdirs total and usable space via Kafka API
KIP-828 Add the corresponding validator to the configuration where the validator is missing
KIP-831 Add metric for log recovery progress
KIP-835 Monitor KRaft Controller Quorum Health
KIP-836 Expose replication information of the cluster metadata
KIP-841 Fenced replicas should not be allowed to join the ISR in KRaft
KIP-843 Adding addMetricIfAbsent method to Metrics
KIP-851 Add requireStable flag into ListConsumerGroupOffsetsOptions
KIP-859 Add Metadata Log Processing Error Related Metrics