From 1c1a3d8140ab67dd7f000de9ef245d135710a685 Mon Sep 17 00:00:00 2001
From: Stephan Dollberg <stephan@redpanda.com>
Date: Tue, 21 Apr 2026 15:32:14 +0100
Subject: [PATCH] kafka: Upgrade java client to 4.2.0

No meaningfull change in perf.

https://perf-team-public.s3.us-west-2.amazonaws.com/reports/kafka_client_upgrade.html
---
 driver-kafka/pom.xml    | 2 +-
 driver-redpanda/pom.xml | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/driver-kafka/pom.xml b/driver-kafka/pom.xml
index 738c1c56..f99cebf7 100644
--- a/driver-kafka/pom.xml
+++ b/driver-kafka/pom.xml
@@ -32,7 +32,7 @@
 		<dependency>
 			<groupId>org.apache.kafka</groupId>
 			<artifactId>kafka-clients</artifactId>
-			<version>3.9.1</version>
+			<version>4.2.0</version>
 		</dependency>
 	</dependencies>
 
diff --git a/driver-redpanda/pom.xml b/driver-redpanda/pom.xml
index 2e2a74e4..121f364c 100644
--- a/driver-redpanda/pom.xml
+++ b/driver-redpanda/pom.xml
@@ -50,7 +50,7 @@
 			<groupId>org.apache.kafka</groupId>
 			<artifactId>kafka-clients</artifactId>
 			<!-- Note that the kafka-client version here should match the version in driver-kafka/pom.xml -->
-			<version>3.9.1</version>
+			<version>4.2.0</version>
 		        <exclusions>
 		          <exclusion>
 		            <groupId>org.lz4</groupId>