apache · pan3793 · Aug 13, 2026 · Aug 13, 2026 · Aug 13, 2026
diff --git a/.github/workflows/license.yml b/.github/workflows/license.yml
@@ -44,7 +44,7 @@ jobs:
       - run: |
           build/mvn org.apache.rat:apache-rat-plugin:check \
             -Ptpcds -Pkubernetes-it \
-            -Pspark-3.3 -Pspark-3.4 -Pspark-3.5 -Pspark-4.0 -Pspark-4.1 -Pspark-4.2
+            -Pspark-3.5 -Pspark-4.0 -Pspark-4.1 -Pspark-4.2
       - name: Upload rat report
         if: failure()
         uses: actions/upload-artifact@v7

diff --git a/.github/workflows/master.yml b/.github/workflows/master.yml
@@ -55,8 +55,6 @@ jobs:
         python:
           - '3.9'
         spark:
-          - '3.3'
-          - '3.4'
           - '3.5'
         spark-archive: [""]
         exclude-tags: [""]
@@ -80,18 +78,6 @@ jobs:
             spark-archive: '-Pscala-2.13'
             exclude-tags: '-Dmaven.plugin.scalatest.exclude.tags=org.scalatest.tags.Slow,org.apache.kyuubi.tags.DeltaTest,org.apache.kyuubi.tags.IcebergTest,org.apache.kyuubi.tags.PaimonTest,org.apache.kyuubi.tags.HudiTest'
             comment: 'normal'
-          - java: 8
-            python: '3.9'
-            spark: '3.5'
-            spark-archive: '-Dspark.archive.mirror=https://www.apache.org/dyn/closer.lua/spark/spark-3.3.3 -Dspark.archive.name=spark-3.3.3-bin-hadoop3.tgz -Pzookeeper-3.6'
-            exclude-tags: '-Dmaven.plugin.scalatest.exclude.tags=org.scalatest.tags.Slow,org.apache.kyuubi.tags.DeltaTest,org.apache.kyuubi.tags.IcebergTest,org.apache.kyuubi.tags.PaimonTest,org.apache.kyuubi.tags.HudiTest,org.apache.kyuubi.tags.SparkLocalClusterTest'
-            comment: 'verify-on-spark-3.3-binary'
-          - java: 8
-            python: '3.9'
-            spark: '3.5'
-            spark-archive: '-Dspark.archive.mirror=https://www.apache.org/dyn/closer.lua/spark/spark-3.4.4 -Dspark.archive.name=spark-3.4.4-bin-hadoop3.tgz -Pzookeeper-3.6'
-            exclude-tags: '-Dmaven.plugin.scalatest.exclude.tags=org.scalatest.tags.Slow,org.apache.kyuubi.tags.DeltaTest,org.apache.kyuubi.tags.IcebergTest,org.apache.kyuubi.tags.PaimonTest,org.apache.kyuubi.tags.SparkLocalClusterTest'
-            comment: 'verify-on-spark-3.4-binary'
           - java: 17
             python: '3.11'
             spark: '3.5'
@@ -248,17 +234,6 @@ jobs:
       fail-fast: false
       max-parallel: 1
       matrix:
-        java:
-          - 17
-        scala:
-          - '2.12'
-          - '2.13'
-        spark-compile:
-            - '3.5'
-        spark-runtime:
-            - '3.4'
-            - '3.3'
-        comment: [ "normal" ]
         include:
           - java: 17
             scala: "2.13"

diff --git a/.github/workflows/publish-snapshot-nexus.yml b/.github/workflows/publish-snapshot-nexus.yml
@@ -31,27 +31,23 @@ jobs:
       matrix:
         branch:
           - master
-          - branch-1.8
-          - branch-1.9
+          - branch-1.12
         profiles:
-          - -Pflink-provided,spark-provided,hive-provided,spark-3.3
-          - -Pflink-provided,spark-provided,hive-provided,spark-3.4,tpcds
-        include:
-          - branch: master
-            profiles: -Pflink-provided,spark-provided,hive-provided,spark-3.5
-          - branch: branch-1.9
-            profiles: -Pflink-provided,spark-provided,hive-provided,spark-3.5
+          - -Pflink-provided,spark-provided,hive-provided,spark-3.5,tpcds
+          - -Pflink-provided,spark-provided,hive-provided,scala-2.13,spark-4.0
+          - -Pflink-provided,spark-provided,hive-provided,scala-2.13,spark-4.1
+          - -Pflink-provided,spark-provided,hive-provided,scala-2.13,spark-4.2,tpcds
     steps:
       - uses: actions/checkout@v7
         with:
           ref: ${{ matrix.branch }}
       - name: Free up disk space
         run: ./.github/scripts/free_disk_space.sh
-      - name: Setup JDK 8
+      - name: Setup JDK 17
         uses: actions/setup-java@v5
         with:
           distribution: temurin
-          java-version: 8
+          java-version: 17
           cache: 'maven'
       - name: Publish Snapshot Jar to Nexus - ${{ matrix.branch }}
         env:

diff --git a/.github/workflows/python.yml b/.github/workflows/python.yml
@@ -44,7 +44,7 @@ jobs:
       fail-fast: false
       max-parallel: 15
       matrix:
-        python-version: ["3.8", "3.9", "3.10"]
+        python-version: ["3.9", "3.10"]
     env:
       PYTHONHASHSEED: random
     steps:

diff --git a/.github/workflows/style.yml b/.github/workflows/style.yml
@@ -35,7 +35,7 @@ jobs:
       max-parallel: 15
       matrix:
         profiles:
-          - '-Pflink-provided,hive-provided,spark-provided,spark-3.5,spark-3.4,spark-3.3,tpcds,kubernetes-it'
+          - '-Pflink-provided,hive-provided,spark-provided,spark-3.5,tpcds,kubernetes-it'
 
     steps:
       - uses: actions/checkout@v7
@@ -66,8 +66,6 @@ jobs:
         run: |
           export MAVEN_ARGS="-DskipTests -Dorg.slf4j.simpleLogger.defaultLogLevel=warn -Drat.skip=true -Dmaven.scalastyle.skip=true -Dspotless.check.skip=true -Pflink-provided,hive-provided,spark-provided"
           build/mvn clean install -Ptpcds
-          build/mvn clean install -pl extensions/spark/kyuubi-extension-spark-3-3 -am -Pspark-3.3
-          build/mvn clean install -pl extensions/spark/kyuubi-extension-spark-3-4 -am -Pspark-3.4
           build/mvn clean install -pl extensions/spark/kyuubi-extension-spark-3-5,extensions/spark/kyuubi-spark-connector-hive -am -Pspark-3.5
           build/mvn clean install -pl extensions/spark/kyuubi-extension-spark-4-0 -am -Pspark-4.0 -Pscala-2.13
           build/mvn clean install -pl extensions/spark/kyuubi-extension-spark-4-1 -am -Pspark-4.1 -Pscala-2.13

diff --git a/AGENTS.md b/AGENTS.md
@@ -67,14 +67,14 @@ Use `-am` (also-make) when building or testing a single module — without it, M
 
 ### Engine profile matrix
 
-| Profile | Notes |
-|---|---|
-| `-Pspark-3.5` (default), `-Pspark-{3.3,3.4,4.0,4.1,master}` | Spark version |
-| `-Pflink-1.20` (default), `-Pflink-{1.17,1.18,1.19}` | Flink version |
-| `-Pscala-2.13` | Scala 2.13 (default is 2.12) |
-| `-P{spark,flink,hive}-provided` | skip bundled engine downloads |
-| `-Pmirror-cdn` | use Apache mirror CDN for engine archives |
-| `-Pfast` | skip tests/style/docs/enforcer/RAT/downloads |
+| Profile                                                 | Notes                                        |
+|---------------------------------------------------------|----------------------------------------------|
+| `-Pspark-3.5` (default), `-Pspark-{4.0,4.1,4.2,master}` | Spark version                                |
+| `-Pflink-1.20` (default), `-Pflink-{1.17,1.18,1.19}`    | Flink version                                |
+| `-Pscala-2.13`                                          | Scala 2.13 (default is 2.12)                 |
+| `-P{spark,flink,hive}-provided`                         | skip bundled engine downloads                |
+| `-Pmirror-cdn`                                          | use Apache mirror CDN for engine archives    |
+| `-Pfast`                                                | skip tests/style/docs/enforcer/RAT/downloads |
 
 When engine code varies across versions, gate source/binary differences by Maven profile and runtime capability differences by feature detection — not by parsing version strings.
 

diff --git a/build/release/release.sh b/build/release/release.sh
@@ -110,16 +110,6 @@ upload_svn_staging() {
 }
 
 upload_nexus_staging() {
-  # Spark Extension Plugin for Spark 3.3 and Scala 2.12
-  ${KYUUBI_DIR}/build/mvn clean deploy -DskipTests -Papache-release,flink-provided,spark-provided,hive-provided,spark-3.3 \
-    -s "${KYUUBI_DIR}/build/release/asf-settings.xml" \
-    -pl extensions/spark/kyuubi-extension-spark-3-3 -am
-
-  # Spark Extension Plugin for Spark 3.4 and Scala 2.12
-  ${KYUUBI_DIR}/build/mvn clean deploy -DskipTests -Papache-release,flink-provided,spark-provided,hive-provided,spark-3.4 \
-    -s "${KYUUBI_DIR}/build/release/asf-settings.xml" \
-    -pl extensions/spark/kyuubi-extension-spark-3-4 -am
-
   # Spark Extension Plugin for Spark 4.0 and Scala 2.13
   ${KYUUBI_DIR}/build/mvn clean deploy -DskipTests -Papache-release,flink-provided,spark-provided,hive-provided,spark-4.0,scala-2.13 \
     -s "${KYUUBI_DIR}/build/release/asf-settings.xml" \

diff --git a/dev/kyuubi-codecov/pom.xml b/dev/kyuubi-codecov/pom.xml
@@ -155,56 +155,6 @@
     </build>
 
     <profiles>
-        <profile>
-            <id>spark-3.3</id>
-            <dependencies>
-                <dependency>
-                    <groupId>org.apache.kyuubi</groupId>
-                    <artifactId>kyuubi-extension-spark-3-3_${scala.binary.version}</artifactId>
-                    <version>${project.version}</version>
-                </dependency>
-                <dependency>
-                    <groupId>org.apache.kyuubi</groupId>
-                    <artifactId>kyuubi-spark-connector-hive_${scala.binary.version}</artifactId>
-                    <version>${project.version}</version>
-                </dependency>
-                <dependency>
-                    <groupId>org.apache.kyuubi</groupId>
-                    <artifactId>kyuubi-spark-authz_${scala.binary.version}</artifactId>
-                    <version>${project.version}</version>
-                </dependency>
-                <dependency>
-                    <groupId>org.apache.kyuubi</groupId>
-                    <artifactId>kyuubi-spark-lineage_${scala.binary.version}</artifactId>
-                    <version>${project.version}</version>
-                </dependency>
-            </dependencies>
-        </profile>
-        <profile>
-            <id>spark-3.4</id>
-            <dependencies>
-                <dependency>
-                    <groupId>org.apache.kyuubi</groupId>
-                    <artifactId>kyuubi-extension-spark-3-4_${scala.binary.version}</artifactId>
-                    <version>${project.version}</version>
-                </dependency>
-                <dependency>
-                    <groupId>org.apache.kyuubi</groupId>
-                    <artifactId>kyuubi-spark-connector-hive_${scala.binary.version}</artifactId>
-                    <version>${project.version}</version>
-                </dependency>
-                <dependency>
-                    <groupId>org.apache.kyuubi</groupId>
-                    <artifactId>kyuubi-spark-authz_${scala.binary.version}</artifactId>
-                    <version>${project.version}</version>
-                </dependency>
-                <dependency>
-                    <groupId>org.apache.kyuubi</groupId>
-                    <artifactId>kyuubi-spark-lineage_${scala.binary.version}</artifactId>
-                    <version>${project.version}</version>
-                </dependency>
-            </dependencies>
-        </profile>
         <profile>
             <id>spark-3.5</id>
             <dependencies>

diff --git a/dev/reformat b/dev/reformat
@@ -20,7 +20,7 @@ set -x
 
 KYUUBI_HOME="$(cd "`dirname "$0"`/.."; pwd)"
 
-PROFILES="-Pflink-provided,hive-provided,spark-provided,spark-4.2,spark-4.1,spark-4.0,spark-3.5,spark-3.4,spark-3.3,tpcds,kubernetes-it"
+PROFILES="-Pflink-provided,hive-provided,spark-provided,spark-4.2,spark-4.1,spark-4.0,spark-3.5,tpcds,kubernetes-it"
 
 # python style checks rely on `black` in path
 if ! command -v black &> /dev/null

diff --git a/docs/contributing/code/building.md b/docs/contributing/code/building.md
@@ -61,19 +61,25 @@ mvn clean install -pl '!dev/kyuubi-codecov,!kyuubi-assembly' -DskipTests
 
 Since v1.1.0, Kyuubi support building with different Spark profiles,
 
-|   Profile   | Default | Since |
-|-------------|---------|-------|
-| -Pspark-3.3 |         | 1.6.0 |
-| -Pspark-3.4 |         | 1.8.0 |
-| -Pspark-3.5 | ✓       | 1.8.0 |
+|   Profile   | Default | Since  | Removed |
+|-------------|---------|--------|---------|
+| -Pspark-3.0 |         | 1.1.0  | 1.6.0   |
+| -Pspark-3.1 |         | 1.1.0  | 1.9.0   |
+| -Pspark-3.2 |         | 1.4.0  | 1.10.0  |
+| -Pspark-3.3 |         | 1.6.0  | 1.13.0  |
+| -Pspark-3.4 |         | 1.8.0  | 1.13.0  |
+| -Pspark-3.5 | ✓       | 1.8.0  |         |
+| -Pspark-4.0 |         | 1.10.0 |         |
+| -Pspark-4.1 |         | 1.11.0 |         |
+| -Pspark-4.2 |         | 1.12.0 |         |
 
 ## Building Kyuubi Against Different Scala Versions
 
 Since v1.8.0, Kyuubi support building with different Scala profile. Currently, Kyuubi supports building with Scala 2.12 and 2.13, while Scala 2.12 by default.
 
 |   Profile    | Default | Since |
 |--------------|---------|-------|
-| (Scala 2.12) | ✓       | -     |
+| -Pscala-2.12 | ✓       | -     |
 | -Pscala-2.13 |         | 1.8.0 |
 
 Please activate `scala-2.13` profile when Scala 2.13 support is needed. The GA tests have covered integration test with the Kyuubi server, engines and related plugins, while the Flink engine and it's integration tests are not included for the reason that Flink does not support Scala 2.13 yet and will pull out client support for Scala.

diff --git a/docs/deployment/migration-guide.md b/docs/deployment/migration-guide.md
@@ -17,6 +17,10 @@
 
 # Kyuubi Migration Guide
 
+## Upgrading from Kyuubi 1.12 to 1.13
+
+* Since Kyuubi 1.13, the support of Spark engine for Spark 3.3 and 3.4 is removed.
+
 ## Upgrading from Kyuubi 1.11 to 1.12
 
 * Since Kyuubi 1.12, the support of variable `<KYUUBI_HOME>` substitution in config `kyuubi.metadata.store.jdbc.url` is deprecated, use `{{KYUUBI_HOME}}` instead.

diff --git a/docs/extensions/engines/spark/jvm-quake.md b/docs/extensions/engines/spark/jvm-quake.md
@@ -23,7 +23,7 @@ So introducing JVMQuake provides more granular monitoring of GC behavior, enabli
 
 ## Usage
 
-JVM Quake is implemented through Spark plugins, This plugin technically supports Spark 3.0 onwards, but was only verified with Spark 3.3 to 4.0 in CI.
+JVM Quake is implemented through Spark plugins, This plugin technically supports Spark 3.0 onwards, but was only verified with Spark 3.5 to 4.2 in CI.
 
 ### Build with Apache Maven
 

diff --git a/docs/extensions/engines/spark/lineage.md b/docs/extensions/engines/spark/lineage.md
@@ -122,18 +122,18 @@ build/mvn clean package -pl :kyuubi-spark-lineage_2.12 -am -DskipTests -Dspark.v
 
 The available `spark.version`s are shown in the following table.
 
-| Spark Version | Supported | Remark |
-|:-------------:|:---------:|:------:|
-|    master     |     √     |   -    |
-|     3.5.x     |     √     |   -    |
-|     3.4.x     |     √     |   -    |
-|     3.3.x     |     √     |   -    |
-|     3.2.x     |     √     |   -    |
-|     3.1.x     |     x     |   -    |
-|     3.0.x     |     x     |   -    |
-|     2.4.x     |     x     |   -    |
-
-Currently, Spark released with Scala 2.12 are supported.
+| Spark Version | Supported |
+|:-------------:|:---------:|
+|     4.2.x     |     √     |
+|     4.1.x     |     √     |
+|     4.0.x     |     √     |
+|     3.5.x     |     √     |
+|     3.4.x     |     x     |
+|     3.3.x     |     x     |
+|     3.2.x     |     x     |
+|     3.1.x     |     x     |
+|     3.0.x     |     x     |
+|     2.4.x     |     x     |
 
 ### Test with ScalaTest Maven plugin
 

diff --git a/docs/extensions/engines/spark/rules.md b/docs/extensions/engines/spark/rules.md
@@ -17,7 +17,7 @@
 
 # Auxiliary Optimization Rules
 
-Kyuubi provides SQL extension out of box. Due to the version compatibility with Apache Spark, currently we support Apache Spark branch-3.1 and later.
+Kyuubi provides SQL extension out of box. Due to the version compatibility with Apache Spark, currently we support Apache Spark 3.5 and later.
 And don't worry, Kyuubi will support the new Apache Spark version in the future. Thanks to the adaptive query execution framework (AQE), Kyuubi can do these optimizations.
 
 ## Features
@@ -57,20 +57,20 @@ And don't worry, Kyuubi will support the new Apache Spark version in the future.
 
 ## Usage
 
-| Kyuubi Spark SQL extension | Supported Spark version(s) | Available since  |  EOL  | Bundled in Binary release tarball | Maven profile |
-|----------------------------|----------------------------|------------------|-------|-----------------------------------|---------------|
-| kyuubi-extension-spark-3-1 | 3.1.x                      | 1.3.0-incubating | 1.8.0 | 1.3.0-incubating                  | spark-3.1     |
-| kyuubi-extension-spark-3-2 | 3.2.x                      | 1.4.0-incubating | 1.9.0 | 1.4.0-incubating                  | spark-3.2     |
-| kyuubi-extension-spark-3-3 | 3.3.x                      | 1.6.0-incubating | N/A   | 1.6.0-incubating                  | spark-3.3     |
-| kyuubi-extension-spark-3-4 | 3.4.x                      | 1.8.0            | N/A   | 1.8.0                             | spark-3.4     |
-| kyuubi-extension-spark-3-5 | 3.5.x                      | 1.8.0            | N/A   | 1.9.0                             | spark-3.5     |
-| kyuubi-extension-spark-4-0 | 4.0.x                      | 1.10.0           | N/A   | 1.10.0                            | spark-4.0     |
-| kyuubi-extension-spark-4-1 | 4.1.x                      | 1.11.0           | N/A   | 1.11.0                            | spark-4.1     |
-| kyuubi-extension-spark-4-2 | 4.2.x                      | 1.12.0           | N/A   | 1.12.0                            | spark-4.2     |
+| Kyuubi Spark SQL extension | Supported Spark version(s) | Available since  |  EOL   | Bundled in Binary release tarball | Maven profile |
+|----------------------------|----------------------------|------------------|--------|-----------------------------------|---------------|
+| kyuubi-extension-spark-3-1 | 3.1.x                      | 1.3.0-incubating | 1.8.0  | 1.3.0-incubating - 1.4.1          | spark-3.1     |
+| kyuubi-extension-spark-3-2 | 3.2.x                      | 1.4.0-incubating | 1.9.0  | 1.5.0 - 1.6.1                     | spark-3.2     |
+| kyuubi-extension-spark-3-3 | 3.3.x                      | 1.6.0-incubating | 1.12.0 | N/A                               | spark-3.3     |
+| kyuubi-extension-spark-3-4 | 3.4.x                      | 1.8.0            | 1.12.0 | N/A                               | spark-3.4     |
+| kyuubi-extension-spark-3-5 | 3.5.x                      | 1.8.0            | N/A    | N/A                               | spark-3.5     |
+| kyuubi-extension-spark-4-0 | 4.0.x                      | 1.10.0           | N/A    | N/A                               | spark-4.0     |
+| kyuubi-extension-spark-4-1 | 4.1.x                      | 1.11.0           | N/A    | N/A                               | spark-4.1     |
+| kyuubi-extension-spark-4-2 | 4.2.x                      | 1.12.0           | N/A    | N/A                               | spark-4.2     |
 
 1. Check the matrix that if you are using the supported Spark version, and find the corresponding Kyuubi Spark SQL Extension jar
 2. Get the Kyuubi Spark SQL Extension jar
-   1. Each Kyuubi binary release tarball only contains one default version of Kyuubi Spark SQL Extension jar, if you are looking for such version, you can find it under `$KYUUBI_HOME/extension`
+   1. Kyuubi binary release tarballs bundled one default version of the Kyuubi Spark SQL Extension jar until 1.6.1, and it is no longer bundled since 1.7.0
    2. All supported versions of Kyuubi Spark SQL Extension jar will be deployed to [Maven Central](https://search.maven.org/search?q=kyuubi-extension-spark)
    3. If you like, you can compile Kyuubi Spark SQL Extension jar by yourself, please activate the corresponding Maven's profile on you compile command, i.e. you can get Kyuubi Spark SQL Extension jar for Spark 3.5 under `extensions/spark/kyuubi-extension-spark-3-5/target` when compile with `-Pspark-3.5`
 3. Put the Kyuubi Spark SQL extension jar `kyuubi-extension-spark-*.jar` into `$SPARK_HOME/jars`

diff --git a/docs/quick_start/quick_start.rst b/docs/quick_start/quick_start.rst
@@ -43,7 +43,7 @@ pre-installed and the ``JAVA_HOME`` is correctly set to each component.
   **Kyuubi**       Gateway      \ |release| \            - Kyuubi Server
                    Engine lib                            - Kyuubi Engine
                    Beeline                               - Kyuubi Beeline
-  **Spark**        Engine       3.3 to 3.5, 4.0 to 4.2   A Spark distribution
+  **Spark**        Engine       3.5, 4.0 to 4.2          A Spark distribution
   **Flink**        Engine       1.17 to 1.20, 2.0 to 2.3 A Flink distribution
   **Trino**        Engine       N/A                      A Trino cluster allows to access via trino-client v411
   **Doris**        Engine       N/A                      A Doris cluster
@@ -146,7 +146,7 @@ To install Spark, you need to unpack the tarball. For example,
 
 .. code-block::
 
-   $ tar zxf spark-3.4.2-bin-hadoop3.tgz
+   $ tar zxf spark-3.5.8-bin-hadoop3.tgz
 
 Configuration
 ~~~~~~~~~~~~~