diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3556d671..fcc64c63 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@ All notable changes to this project will be documented in this file.
 ### Added
 
 - Helm: support labels in values.yaml ([#344]).
+- Support version `3.4.2` ([#357]).
 
 ### Changed
 
@@ -27,6 +28,7 @@ All notable changes to this project will be documented in this file.
 [#319]: https://github.com/stackabletech/spark-k8s-operator/pull/319
 [#344]: https://github.com/stackabletech/spark-k8s-operator/pull/344
 [#355]: https://github.com/stackabletech/spark-k8s-operator/pull/355
+[#357]: https://github.com/stackabletech/spark-k8s-operator/pull/357
 
 ## [23.11.0] - 2023-11-24
 
diff --git a/docs/modules/spark-k8s/partials/supported-versions.adoc b/docs/modules/spark-k8s/partials/supported-versions.adoc
index 11f8925a..5564f48b 100644
--- a/docs/modules/spark-k8s/partials/supported-versions.adoc
+++ b/docs/modules/spark-k8s/partials/supported-versions.adoc
@@ -4,5 +4,5 @@
 // Please sort the versions in descending order (newest first)
 
 - 3.5.0 (Hadoop 3.3.4, Scala 2.12, Python 3.11, Java 11)
-- 3.4.1 (Hadoop 3.3.4, Scala 2.12, Python 3.11, Java 11)
-- 3.4.0 (Hadoop 3.3.4, Scala 2.12, Python 3.11, Java 11) (deprecated)
+- 3.4.2 (Hadoop 3.3.4, Scala 2.12, Python 3.11, Java 11) (LTS)
+- 3.4.1 (Hadoop 3.3.4, Scala 2.12, Python 3.11, Java 11) (deprecated)
diff --git a/tests/templates/kuttl/pod_overrides/spark-examples_3.4.0.jar b/tests/templates/kuttl/pod_overrides/spark-examples_3.4.2.jar
similarity index 77%
rename from tests/templates/kuttl/pod_overrides/spark-examples_3.4.0.jar
rename to tests/templates/kuttl/pod_overrides/spark-examples_3.4.2.jar
index da6bb311..90fa6565 100644
Binary files a/tests/templates/kuttl/pod_overrides/spark-examples_3.4.0.jar and b/tests/templates/kuttl/pod_overrides/spark-examples_3.4.2.jar differ
diff --git a/tests/templates/kuttl/smoke/spark-examples_3.4.0.jar b/tests/templates/kuttl/smoke/spark-examples_3.4.2.jar
similarity index 77%
rename from tests/templates/kuttl/smoke/spark-examples_3.4.0.jar
rename to tests/templates/kuttl/smoke/spark-examples_3.4.2.jar
index da6bb311..90fa6565 100644
Binary files a/tests/templates/kuttl/smoke/spark-examples_3.4.0.jar and b/tests/templates/kuttl/smoke/spark-examples_3.4.2.jar differ
diff --git a/tests/templates/kuttl/spark-history-server/spark-examples_3.4.0.jar b/tests/templates/kuttl/spark-history-server/spark-examples_3.4.2.jar
similarity index 77%
rename from tests/templates/kuttl/spark-history-server/spark-examples_3.4.0.jar
rename to tests/templates/kuttl/spark-history-server/spark-examples_3.4.2.jar
index da6bb311..90fa6565 100644
Binary files a/tests/templates/kuttl/spark-history-server/spark-examples_3.4.0.jar and b/tests/templates/kuttl/spark-history-server/spark-examples_3.4.2.jar differ
diff --git a/tests/templates/kuttl/spark-ny-public-s3/ny-tlc-report-1.1.0-3.4.2.jar b/tests/templates/kuttl/spark-ny-public-s3/ny-tlc-report-1.1.0-3.4.2.jar
new file mode 100644
index 00000000..c6e51739
Binary files /dev/null and b/tests/templates/kuttl/spark-ny-public-s3/ny-tlc-report-1.1.0-3.4.2.jar differ
diff --git a/tests/templates/kuttl/spark-pi-private-s3/spark-examples_3.4.0.jar b/tests/templates/kuttl/spark-pi-private-s3/spark-examples_3.4.2.jar
similarity index 77%
rename from tests/templates/kuttl/spark-pi-private-s3/spark-examples_3.4.0.jar
rename to tests/templates/kuttl/spark-pi-private-s3/spark-examples_3.4.2.jar
index da6bb311..90fa6565 100644
Binary files a/tests/templates/kuttl/spark-pi-private-s3/spark-examples_3.4.0.jar and b/tests/templates/kuttl/spark-pi-private-s3/spark-examples_3.4.2.jar differ
diff --git a/tests/templates/kuttl/spark-pi-public-s3/spark-examples_3.4.0.jar b/tests/templates/kuttl/spark-pi-public-s3/spark-examples_3.4.0.jar
deleted file mode 100644
index da6bb311..00000000
Binary files a/tests/templates/kuttl/spark-pi-public-s3/spark-examples_3.4.0.jar and /dev/null differ
diff --git a/tests/templates/kuttl/spark-pi-public-s3/spark-examples_3.4.2.jar b/tests/templates/kuttl/spark-pi-public-s3/spark-examples_3.4.2.jar
new file mode 100644
index 00000000..90fa6565
Binary files /dev/null and b/tests/templates/kuttl/spark-pi-public-s3/spark-examples_3.4.2.jar differ
diff --git a/tests/test-definition.yaml b/tests/test-definition.yaml
index fb5967fb..e6c58523 100644
--- a/tests/test-definition.yaml
+++ b/tests/test-definition.yaml
@@ -6,6 +6,7 @@ dimensions:
   - name: spark
     values:
       - 3.4.1
+      - 3.4.2
       - 3.5.0
       # Alternatively, if you want to use a custom image, append a comma and the full image name to the product version
       # as in the example below.