Thomas Cooper created FLINK-37583:
-------------------------------------
Summary: Upgrade Kafka Client version to 4.0.0
Key: FLINK-37583
URL: https://issues.apache.org/jira/browse/FLINK-37583
Project: Flink
Issue Type: Improvement
Reporter: Thomas Cooper
Kafka Client version 4.0.0 has been released. This has many performance
improvements and security fixes so we should upgrade the flink-connector-kafka
to use this version.
It is backwards compatible with older Kafka versions, however as noted in the
[release
notes|https://kafka.apache.org/40/documentation.html#upgrade_servers_400_notable]:
{quote}
Old protocol API versions have been removed. Users should ensure brokers are
version 2.1 or higher before upgrading Java clients (including Connect and
Kafka Streams which use the clients internally) to 4.0.
{quote}
Therefore, moving to this version will mean that the connector cannot be used
with Kafka version 2.0 or older. Hopefully, users have upgraded beyond this
point by now but it will need to be stated clearly.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
