diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1eee8175f..101ab87e9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@ All notable changes to this project will be documented in this file.
 
 ### Added
 
+- zookeeper: Add 3.9.6 ([#1662]).
 - airflow, superset, druid, nifi: Add SBOMs for the frontend (npm) dependencies ([#1600]).
 - nifi: Backport NIFI-15958 to log periodic progress while waiting for the content archive scan and provenance re-index, for `2.6.0`, `2.7.2`, and `2.9.0` ([#1611]).
 - hbase: Add an SBOM for the web UI (npm) dependencies, which are unpacked from webjars and therefore not covered by the CycloneDX Maven plugin ([#1620]).
@@ -54,7 +55,8 @@ All notable changes to this project will be documented in this file.
 
 ### Removed
 
-- omid: remove 1.1.2 ([#1593]).
+- zookeeper: Remove 3.9.4 ([#1662]).
+- omid: Remove 1.1.2 ([#1593]).
 - ci: Remove SLSA build provenance generation for published image indexes ([#1596]).
 
 [#1593]: https://github.com/stackabletech/docker-images/pull/1593
@@ -69,6 +71,7 @@ All notable changes to this project will be documented in this file.
 [#1635]: https://github.com/stackabletech/docker-images/pull/1635
 [#1638]: https://github.com/stackabletech/docker-images/pull/1638
 [#1641]: https://github.com/stackabletech/docker-images/pull/1641
+[#1662]: https://github.com/stackabletech/docker-images/pull/1662
 
 ## [26.7.0] - 2026-07-21
 
diff --git a/zookeeper/boil-config.toml b/zookeeper/boil-config.toml
index 680d4bae8..e6db91e18 100644
--- a/zookeeper/boil-config.toml
+++ b/zookeeper/boil-config.toml
@@ -1,19 +1,17 @@
 [metadata.registries]
 "oci.stackable.tech" = { namespace = "sdp" }
 
-# Deprecated since 26.7.0
-[versions."3.9.4".local-images]
-java-base = "17"
-java-devel = "11"
-"shared/logback" = "1.3.15" # https://github.com/apache/zookeeper/blob/release-3.9.4/pom.xml#L554
-
-[versions."3.9.4".build-arguments]
+[build-arguments]
 jmx-exporter-version = "1.4.0"
 
+# Deprecated in 26.11.0
 [versions."3.9.5".local-images]
 java-base = "17"
 java-devel = "17"
 "shared/logback" = "1.3.15" # https://github.com/apache/zookeeper/blob/release-3.9.5/pom.xml#L554
 
-[versions."3.9.5".build-arguments]
-jmx-exporter-version = "1.4.0"
+# LTS since 26.11.0
+[versions."3.9.6".local-images]
+java-base = "17"
+java-devel = "17"
+"shared/logback" = "1.3.15" # https://github.com/apache/zookeeper/blob/release-3.9.6/pom.xml#L554
diff --git a/zookeeper/stackable/patches/3.9.4/0001-Add-CycloneDX-plugin.patch b/zookeeper/stackable/patches/3.9.6/0001-Add-CycloneDX-plugin.patch
similarity index 86%
rename from zookeeper/stackable/patches/3.9.4/0001-Add-CycloneDX-plugin.patch
rename to zookeeper/stackable/patches/3.9.6/0001-Add-CycloneDX-plugin.patch
index 0bd6070fc..b8116c0a4 100644
--- a/zookeeper/stackable/patches/3.9.4/0001-Add-CycloneDX-plugin.patch
+++ b/zookeeper/stackable/patches/3.9.6/0001-Add-CycloneDX-plugin.patch
@@ -1,4 +1,4 @@
-From 24644dd2f8463f972965d14021a7b071d8feaf81 Mon Sep 17 00:00:00 2001
+From e54aa44d6224d8c4f8f4073855d1fae98f9c6c03 Mon Sep 17 00:00:00 2001
 From: xeniape <xenia.fischer@stackable.tech>
 Date: Tue, 30 Sep 2025 15:24:05 +0200
 Subject: Add CycloneDX plugin
@@ -8,10 +8,10 @@ Subject: Add CycloneDX plugin
  1 file changed, 6 insertions(+), 1 deletion(-)
 
 diff --git a/pom.xml b/pom.xml
-index 860ffb97..5355571a 100644
+index 58ba43b4..efdb3be9 100644
 --- a/pom.xml
 +++ b/pom.xml
-@@ -925,7 +925,7 @@
+@@ -926,7 +926,7 @@
          <plugin>
            <groupId>org.cyclonedx</groupId>
            <artifactId>cyclonedx-maven-plugin</artifactId>
@@ -20,7 +20,7 @@ index 860ffb97..5355571a 100644
         </plugin>
        </plugins>
      </pluginManagement>
-@@ -1200,6 +1200,11 @@
+@@ -1201,6 +1201,11 @@
        <plugin>
          <groupId>org.cyclonedx</groupId>
          <artifactId>cyclonedx-maven-plugin</artifactId>
diff --git a/zookeeper/stackable/patches/3.9.4/patchable.toml b/zookeeper/stackable/patches/3.9.6/patchable.toml
similarity index 53%
rename from zookeeper/stackable/patches/3.9.4/patchable.toml
rename to zookeeper/stackable/patches/3.9.6/patchable.toml
index 2099babb5..7f2da30df 100644
--- a/zookeeper/stackable/patches/3.9.4/patchable.toml
+++ b/zookeeper/stackable/patches/3.9.6/patchable.toml
@@ -1,2 +1,2 @@
 mirror = "https://github.com/stackabletech/zookeeper.git"
-base = "7246445ec281f3dbf53dc54e970c914f39713903"
+base = "a355171b081b5b60749db8f19cca1528b0df936f"