diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2a5866e03..3c64b42c5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -25,6 +25,7 @@ All notable changes to this project will be documented in this file.
 - spark-connect-client: Add `4.0.1` ([#1286]).
 - trino/trino-storage-connector: Add `477` ([#1285]).
 - testing-tools: Add `upload_new_keycloak_version.sh` script ([#1289]).
+- hadoop: Add `3.4.2` ([#1291]).
 - zookeeper: Add `3.9.4` ([#1292]).
 
 ### Changed
@@ -79,6 +80,7 @@ All notable changes to this project will be documented in this file.
 [#1286]: https://github.com/stackabletech/docker-images/pull/1286
 [#1289]: https://github.com/stackabletech/docker-images/pull/1289
 [#1290]: https://github.com/stackabletech/docker-images/pull/1290
+[#1291]: https://github.com/stackabletech/docker-images/pull/1291
 [#1292]: https://github.com/stackabletech/docker-images/pull/1292
 
 ## [25.7.0] - 2025-07-23
diff --git a/hadoop/boil-config.toml b/hadoop/boil-config.toml
index 6636ae943..3ba29c05a 100644
--- a/hadoop/boil-config.toml
+++ b/hadoop/boil-config.toml
@@ -18,3 +18,13 @@ java-devel = "11"
 async-profiler-version = "2.9"
 jmx-exporter-version = "1.3.0"
 hdfs-utils-version = "0.4.1"
+
+[versions."3.4.2".local-images]
+"hadoop/hadoop" = "3.4.2"
+java-base = "11"
+java-devel = "11"
+
+[versions."3.4.2".build-arguments]
+async-profiler-version = "2.9"
+jmx-exporter-version = "1.3.0"
+hdfs-utils-version = "0.4.2"
diff --git a/hadoop/hadoop/boil-config.toml b/hadoop/hadoop/boil-config.toml
index c8f4e5140..37dedcc9d 100644
--- a/hadoop/hadoop/boil-config.toml
+++ b/hadoop/hadoop/boil-config.toml
@@ -9,3 +9,9 @@ java-devel = "11"
 
 [versions."3.4.1".build-arguments]
 protobuf-version = "3.7.1"
+
+[versions."3.4.2".local-images]
+java-devel = "11"
+
+[versions."3.4.2".build-arguments]
+protobuf-version = "3.7.1"
diff --git a/hadoop/hdfs-utils/stackable/patches/0.4.2/patchable.toml b/hadoop/hdfs-utils/stackable/patches/0.4.2/patchable.toml
new file mode 100644
index 000000000..6dbd29dc4
--- /dev/null
+++ b/hadoop/hdfs-utils/stackable/patches/0.4.2/patchable.toml
@@ -0,0 +1 @@
+base = "921c42df13e2f7b72bf010cfa1e474243b186873"