diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8048100b5..7e830ca32 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -39,6 +39,7 @@ All notable changes to this project will be documented in this file.
 
 - nifi: Remove `1.28.1`, deprecate `2.7.2` ([#1520]).
 - opa: Remove `1.8.0` ([#1509]).
+- spark-k8s: Remove `3.5.7` and `4.0.1`, deprecate `3.5.8`, LTS `4.1.1` ([#1525]).
 
 [#1446]: https://github.com/stackabletech/docker-images/pull/1446
 [#1452]: https://github.com/stackabletech/docker-images/pull/1452
@@ -61,6 +62,7 @@ All notable changes to this project will be documented in this file.
 [#1518]: https://github.com/stackabletech/docker-images/pull/1518
 [#1520]: https://github.com/stackabletech/docker-images/pull/1520
 [#1521]: https://github.com/stackabletech/docker-images/pull/1521
+[#1525]: https://github.com/stackabletech/docker-images/pull/1525
 
 ## [26.3.0] - 2026-03-16
 
diff --git a/spark-k8s/boil-config.toml b/spark-k8s/boil-config.toml
index 1ebde375c..9ff8cf2ee 100644
--- a/spark-k8s/boil-config.toml
+++ b/spark-k8s/boil-config.toml
@@ -1,28 +1,7 @@
 [metadata.registries]
 "oci.stackable.tech" = { namespace = "sdp" }
 
-[versions."3.5.7"]
-containerfile = "Dockerfile.3"
-
-[versions."3.5.7".local-images]
-"hadoop/hadoop" = "3.4.2"
-java-base = "17"
-java-devel = "17"
-hbase = "2.6.3"
-"spark-k8s/hbase-connectors" = "1.0.1_3.5.7"
-
-[versions."3.5.7".build-arguments]
-python-version = "3.11"
-aws-java-sdk-bundle-version = "2.29.52"   # needs to match the version shipped by Hadoop
-azure-storage-version = "7.0.1"           # needs to match the version shipped by Hadoop
-azure-keyvault-core-version = "1.0.0"     # needs to match the version shipped by Hadoop
-jackson-dataformat-xml-version = "2.15.2" # needs to match the version shipped by Spark https://mvnrepository.com/artifact/org.apache.spark/spark-core_2.12/3.5.7
-stax2-api-version = "4.2.1"               # needs to match the jackson version https://mvnrepository.com/artifact/com.fasterxml.jackson.dataformat/jackson-dataformat-xml/2.15.2
-woodstox-core-version = "6.5.1"           # needs to match the jackson version https://mvnrepository.com/artifact/com.fasterxml.jackson.dataformat/jackson-dataformat-xml/2.15.2
-jmx-exporter-version = "1.3.0"
-tini-version = "0.19.0"
-hbase-connector-version = "1.0.1_3.5.7"
-
+# Deprecated since 26.7.0
 [versions."3.5.8"]
 containerfile = "Dockerfile.3"
 
@@ -45,25 +24,8 @@ jmx-exporter-version = "1.3.0"
 tini-version = "0.19.0"
 hbase-connector-version = "1.0.1_3.5.8"
 
-[versions."4.0.1"]
-containerfile = "Dockerfile.4"
-
-[versions."4.0.1".local-images]
-"hadoop/hadoop" = "3.4.2"
-java-base = "21"
-java-devel = "21"
-
-[versions."4.0.1".build-arguments]
-python-version = "3.12"
-aws-java-sdk-bundle-version = "2.29.52"   # needs to match the version shipped by Hadoop
-azure-storage-version = "7.0.1"           # needs to match the version shipped by Hadoop
-azure-keyvault-core-version = "1.0.0"     # needs to match the version shipped by Hadoop
-jackson-dataformat-xml-version = "2.18.2" # needs to match the version shipped by Spark https://mvnrepository.com/artifact/org.apache.spark/spark-core_2.13/4.0.1
-stax2-api-version = "4.2.2"               # needs to match the jackson version https://mvnrepository.com/artifact/com.fasterxml.jackson.dataformat/jackson-dataformat-xml/2.18.2
-woodstox-core-version = "7.0.0"           # needs to match the jackson version https://mvnrepository.com/artifact/com.fasterxml.jackson.dataformat/jackson-dataformat-xml/2.18.2
-jmx-exporter-version = "1.3.0"
-tini-version = "0.19.0"
 
+# LTS since 26.7.0
 [versions."4.1.1"]
 containerfile = "Dockerfile.4"
 
diff --git a/spark-k8s/hbase-connectors/boil-config.toml b/spark-k8s/hbase-connectors/boil-config.toml
index 6cf4c0791..ae21e4cb6 100644
--- a/spark-k8s/hbase-connectors/boil-config.toml
+++ b/spark-k8s/hbase-connectors/boil-config.toml
@@ -1,12 +1,3 @@
-
-[versions."1.0.1_3.5.7".local-images]
-java-devel = "17"
-
-[versions."1.0.1_3.5.7".build-arguments]
-spark-version = "3.5.7"
-hadoop-version = "3.4.2"
-hbase-version = "2.6.3"
-
 [versions."1.0.1_3.5.8".local-images]
 java-devel = "17"
 
diff --git a/spark-k8s/hbase-connectors/stackable/patches/1.0.1_3.5.7/0001-Fix-protobuf-on-aarch64.patch b/spark-k8s/hbase-connectors/stackable/patches/1.0.1_3.5.7/0001-Fix-protobuf-on-aarch64.patch
deleted file mode 100644
index 37d8663c9..000000000
--- a/spark-k8s/hbase-connectors/stackable/patches/1.0.1_3.5.7/0001-Fix-protobuf-on-aarch64.patch
+++ /dev/null
@@ -1,59 +0,0 @@
-From 8211177df0ca6cae00bc3bebcd264364732691b3 Mon Sep 17 00:00:00 2001
-From: dervoeti <lukas.krug@stackable.tech>
-Date: Thu, 13 Mar 2025 22:10:56 +0100
-Subject: Fix protobuf on aarch64
-
----
- pom.xml       | 19 ++++++++++++++++++-
- spark/pom.xml |  2 +-
- 2 files changed, 19 insertions(+), 2 deletions(-)
-
-diff --git a/pom.xml b/pom.xml
-index e849cd1..f514e14 100644
---- a/pom.xml
-+++ b/pom.xml
-@@ -157,7 +157,10 @@
-     <extra.enforcer.version>1.5.1</extra.enforcer.version>
-     <restrict-imports.enforcer.version>0.14.0</restrict-imports.enforcer.version>
-     <!--Internally we use a different version of protobuf. See hbase-protocol-shaded-->
--    <external.protobuf.version>2.5.0</external.protobuf.version>
-+    <!-- com.google repo will be used except on Aarch64 platform. -->
-+    <external.protobuf.groupId>com.google.protobuf</external.protobuf.groupId>
-+    <external.protobuf.version>2.6.1</external.protobuf.version>
-+    <external.protobuf.exe.version>${external.protobuf.version}</external.protobuf.exe.version>
-     <protobuf.plugin.version>0.5.0</protobuf.plugin.version>
-     <commons-io.version>2.11.0</commons-io.version>
-     <avro.version>1.7.7</avro.version>
-@@ -933,5 +936,19 @@
-         </plugins>
-       </build>
-     </profile>
-+    <!-- use com.github.os72 on aarch64 platform -->
-+    <profile>
-+      <id>aarch64</id>
-+      <properties>
-+        <external.protobuf.groupId>com.github.os72</external.protobuf.groupId>
-+        <external.protobuf.exe.version>2.6.1-build3</external.protobuf.exe.version>
-+      </properties>
-+      <activation>
-+        <os>
-+          <family>linux</family>
-+          <arch>aarch64</arch>
-+        </os>
-+      </activation>
-+    </profile>
-   </profiles>
- </project>
-diff --git a/spark/pom.xml b/spark/pom.xml
-index 3f1eb21..fcdc73e 100644
---- a/spark/pom.xml
-+++ b/spark/pom.xml
-@@ -84,7 +84,7 @@
-           <artifactId>protobuf-maven-plugin</artifactId>
-           <version>${protobuf.plugin.version}</version>
-           <configuration>
--            <protocArtifact>com.google.protobuf:protoc:${external.protobuf.version}:exe:${os.detected.classifier}</protocArtifact>
-+            <protocArtifact>${external.protobuf.groupId}:protoc:${external.protobuf.exe.version}:exe:${os.detected.classifier}</protocArtifact>
-             <protoSourceRoot>${basedir}/src/main/protobuf/</protoSourceRoot>
-             <clearOutputDirectory>false</clearOutputDirectory>
-             <checkStaleness>true</checkStaleness>
diff --git a/spark-k8s/hbase-connectors/stackable/patches/1.0.1_3.5.7/patchable.toml b/spark-k8s/hbase-connectors/stackable/patches/1.0.1_3.5.7/patchable.toml
deleted file mode 100644
index 6d8c2c8db..000000000
--- a/spark-k8s/hbase-connectors/stackable/patches/1.0.1_3.5.7/patchable.toml
+++ /dev/null
@@ -1,2 +0,0 @@
-base = "e5217d13ed729703580ff2d1b02378ada2d94f4d"
-mirror = "https://github.com/stackabletech/hbase-connectors.git"