diff --git a/docs/ingestion/native-batch.md b/docs/ingestion/native-batch.md
index d4205da..e445b4e 100644
--- a/docs/ingestion/native-batch.md
+++ b/docs/ingestion/native-batch.md
@@ -605,8 +605,7 @@
         "logParseExceptions": false,
         "maxParseExceptions": 2147483647,
         "maxSavedParseExceptions": 0,
-        "forceGuaranteedRollup": false,
-        "buildV9Directly": true
+        "forceGuaranteedRollup": false
       }
     }
   },
diff --git a/extensions-contrib/materialized-view-maintenance/src/main/java/org/apache/druid/indexing/materializedview/MaterializedViewSupervisorSpec.java b/extensions-contrib/materialized-view-maintenance/src/main/java/org/apache/druid/indexing/materializedview/MaterializedViewSupervisorSpec.java
index be21a65..6daaad9 100644
--- a/extensions-contrib/materialized-view-maintenance/src/main/java/org/apache/druid/indexing/materializedview/MaterializedViewSupervisorSpec.java
+++ b/extensions-contrib/materialized-view-maintenance/src/main/java/org/apache/druid/indexing/materializedview/MaterializedViewSupervisorSpec.java
@@ -192,7 +192,6 @@
         tuningConfig.isCombineText(),
         tuningConfig.getUseCombiner(),
         tuningConfig.getMaxRowsInMemory(),
-        tuningConfig.getBuildV9Directly(),
         tuningConfig.getNumBackgroundPersistThreads(),
         tuningConfig.isForceExtendableShardSpecs(),
         true,
diff --git a/extensions-core/kafka-indexing-service/src/main/java/org/apache/druid/indexing/kafka/KafkaIndexTaskTuningConfig.java b/extensions-core/kafka-indexing-service/src/main/java/org/apache/druid/indexing/kafka/KafkaIndexTaskTuningConfig.java
index 2a7b077..c0dfb33 100644
--- a/extensions-core/kafka-indexing-service/src/main/java/org/apache/druid/indexing/kafka/KafkaIndexTaskTuningConfig.java
+++ b/extensions-core/kafka-indexing-service/src/main/java/org/apache/druid/indexing/kafka/KafkaIndexTaskTuningConfig.java
@@ -45,8 +45,6 @@
       @JsonProperty("maxPendingPersists") @Nullable Integer maxPendingPersists,
       @JsonProperty("indexSpec") @Nullable IndexSpec indexSpec,
       @JsonProperty("indexSpecForIntermediatePersists") @Nullable IndexSpec indexSpecForIntermediatePersists,
-      // This parameter is left for compatibility when reading existing configs, to be removed in Druid 0.12.
-      @JsonProperty("buildV9Directly") @Nullable Boolean buildV9Directly,
       @Deprecated @JsonProperty("reportParseExceptions") @Nullable Boolean reportParseExceptions,
       @JsonProperty("handoffConditionTimeout") @Nullable Long handoffConditionTimeout,
       @JsonProperty("resetOffsetAutomatically") @Nullable Boolean resetOffsetAutomatically,
@@ -69,7 +67,6 @@
         maxPendingPersists,
         indexSpec,
         indexSpecForIntermediatePersists,
-        true,
         reportParseExceptions,
         handoffConditionTimeout,
         resetOffsetAutomatically,
@@ -97,7 +94,6 @@
         getMaxPendingPersists(),
         getIndexSpec(),
         getIndexSpecForIntermediatePersists(),
-        true,
         isReportParseExceptions(),
         getHandoffConditionTimeout(),
         isResetOffsetAutomatically(),
diff --git a/extensions-core/kafka-indexing-service/src/main/java/org/apache/druid/indexing/kafka/supervisor/KafkaSupervisorTuningConfig.java b/extensions-core/kafka-indexing-service/src/main/java/org/apache/druid/indexing/kafka/supervisor/KafkaSupervisorTuningConfig.java
index 04cc74f..4fc5489 100644
--- a/extensions-core/kafka-indexing-service/src/main/java/org/apache/druid/indexing/kafka/supervisor/KafkaSupervisorTuningConfig.java
+++ b/extensions-core/kafka-indexing-service/src/main/java/org/apache/druid/indexing/kafka/supervisor/KafkaSupervisorTuningConfig.java
@@ -68,7 +68,6 @@
         null,
         null,
         null,
-        null,
         null
     );
   }
@@ -85,8 +84,6 @@
       @JsonProperty("maxPendingPersists") Integer maxPendingPersists,
       @JsonProperty("indexSpec") IndexSpec indexSpec,
       @JsonProperty("indexSpecForIntermediatePersists") @Nullable IndexSpec indexSpecForIntermediatePersists,
-      // This parameter is left for compatibility when reading existing configs, to be removed in Druid 0.12.
-      @JsonProperty("buildV9Directly") Boolean buildV9Directly,
       @JsonProperty("reportParseExceptions") Boolean reportParseExceptions,
       @JsonProperty("handoffConditionTimeout") Long handoffConditionTimeout,
       @JsonProperty("resetOffsetAutomatically") Boolean resetOffsetAutomatically,
@@ -115,7 +112,6 @@
         maxPendingPersists,
         indexSpec,
         indexSpecForIntermediatePersists,
-        true,
         reportParseExceptions,
         handoffConditionTimeout,
         resetOffsetAutomatically,
@@ -237,7 +233,6 @@
         getMaxPendingPersists(),
         getIndexSpec(),
         getIndexSpecForIntermediatePersists(),
-        true,
         isReportParseExceptions(),
         getHandoffConditionTimeout(),
         isResetOffsetAutomatically(),
diff --git a/extensions-core/kafka-indexing-service/src/test/java/org/apache/druid/indexing/kafka/KafkaIndexTaskTest.java b/extensions-core/kafka-indexing-service/src/test/java/org/apache/druid/indexing/kafka/KafkaIndexTaskTest.java
index 34ef75c..9f15091 100644
--- a/extensions-core/kafka-indexing-service/src/test/java/org/apache/druid/indexing/kafka/KafkaIndexTaskTest.java
+++ b/extensions-core/kafka-indexing-service/src/test/java/org/apache/druid/indexing/kafka/KafkaIndexTaskTest.java
@@ -2685,7 +2685,6 @@
         null,
         null,
         null,
-        true,
         reportParseExceptions,
         handoffConditionTimeout,
         resetOffsetAutomatically,
diff --git a/extensions-core/kafka-indexing-service/src/test/java/org/apache/druid/indexing/kafka/KafkaIndexTaskTuningConfigTest.java b/extensions-core/kafka-indexing-service/src/test/java/org/apache/druid/indexing/kafka/KafkaIndexTaskTuningConfigTest.java
index e27d7d0..6674c36 100644
--- a/extensions-core/kafka-indexing-service/src/test/java/org/apache/druid/indexing/kafka/KafkaIndexTaskTuningConfigTest.java
+++ b/extensions-core/kafka-indexing-service/src/test/java/org/apache/druid/indexing/kafka/KafkaIndexTaskTuningConfigTest.java
@@ -132,7 +132,6 @@
         new IndexSpec(),
         new IndexSpec(),
         true,
-        true,
         5L,
         null,
         null,
@@ -178,7 +177,6 @@
         new IndexSpec(),
         new IndexSpec(),
         true,
-        true,
         5L,
         null,
         null,
@@ -202,7 +200,6 @@
     Assert.assertEquals(base.getBasePersistDirectory(), deserialized.getBasePersistDirectory());
     Assert.assertEquals(base.getMaxPendingPersists(), deserialized.getMaxPendingPersists());
     Assert.assertEquals(base.getIndexSpec(), deserialized.getIndexSpec());
-    Assert.assertEquals(base.getBuildV9Directly(), deserialized.getBuildV9Directly());
     Assert.assertEquals(base.isReportParseExceptions(), deserialized.isReportParseExceptions());
     Assert.assertEquals(base.getHandoffConditionTimeout(), deserialized.getHandoffConditionTimeout());
     Assert.assertEquals(base.isResetOffsetAutomatically(), deserialized.isResetOffsetAutomatically());
@@ -229,7 +226,6 @@
         new IndexSpec(),
         new IndexSpec(),
         true,
-        true,
         5L,
         null,
         null,
@@ -253,7 +249,6 @@
     Assert.assertEquals(base.getBasePersistDirectory(), deserialized.getBasePersistDirectory());
     Assert.assertEquals(base.getMaxPendingPersists(), deserialized.getMaxPendingPersists());
     Assert.assertEquals(base.getIndexSpec(), deserialized.getIndexSpec());
-    Assert.assertEquals(base.getBuildV9Directly(), deserialized.getBuildV9Directly());
     Assert.assertEquals(base.isReportParseExceptions(), deserialized.isReportParseExceptions());
     Assert.assertEquals(base.getHandoffConditionTimeout(), deserialized.getHandoffConditionTimeout());
     Assert.assertEquals(base.isResetOffsetAutomatically(), deserialized.isResetOffsetAutomatically());
diff --git a/extensions-core/kafka-indexing-service/src/test/java/org/apache/druid/indexing/kafka/supervisor/KafkaSupervisorTest.java b/extensions-core/kafka-indexing-service/src/test/java/org/apache/druid/indexing/kafka/supervisor/KafkaSupervisorTest.java
index ac6b6e5..c248a11 100644
--- a/extensions-core/kafka-indexing-service/src/test/java/org/apache/druid/indexing/kafka/supervisor/KafkaSupervisorTest.java
+++ b/extensions-core/kafka-indexing-service/src/test/java/org/apache/druid/indexing/kafka/supervisor/KafkaSupervisorTest.java
@@ -311,7 +311,6 @@
             null,
             null,
             null,
-            true,
             false,
             null,
             false,
@@ -468,7 +467,6 @@
             null,
             null,
             null,
-            null,
             null
         ),
         null
@@ -3280,7 +3278,6 @@
             null,
             null,
             null,
-            true,
             false,
             null,
             false,
@@ -3321,7 +3318,6 @@
         null,
         null,
         null,
-        true,
         false,
         null,
         null,
@@ -3619,7 +3615,6 @@
         null,
         null,
         null,
-        true,
         false,
         null,
         resetOffsetAutomatically,
@@ -3732,7 +3727,6 @@
         null,
         null,
         null,
-        true,
         false,
         null,
         false,
diff --git a/extensions-core/kafka-indexing-service/src/test/java/org/apache/druid/indexing/kafka/test/TestModifiedKafkaIndexTaskTuningConfig.java b/extensions-core/kafka-indexing-service/src/test/java/org/apache/druid/indexing/kafka/test/TestModifiedKafkaIndexTaskTuningConfig.java
index 2c1a684..642141c 100644
--- a/extensions-core/kafka-indexing-service/src/test/java/org/apache/druid/indexing/kafka/test/TestModifiedKafkaIndexTaskTuningConfig.java
+++ b/extensions-core/kafka-indexing-service/src/test/java/org/apache/druid/indexing/kafka/test/TestModifiedKafkaIndexTaskTuningConfig.java
@@ -49,8 +49,6 @@
       @JsonProperty("maxPendingPersists") @Nullable Integer maxPendingPersists,
       @JsonProperty("indexSpec") @Nullable IndexSpec indexSpec,
       @JsonProperty("indexSpecForIntermediatePersists") @Nullable IndexSpec indexSpecForIntermediatePersists,
-      // This parameter is left for compatibility when reading existing configs, to be removed in Druid 0.12.
-      @JsonProperty("buildV9Directly") @Nullable Boolean buildV9Directly,
       @Deprecated @JsonProperty("reportParseExceptions") @Nullable Boolean reportParseExceptions,
       @JsonProperty("handoffConditionTimeout") @Nullable Long handoffConditionTimeout,
       @JsonProperty("resetOffsetAutomatically") @Nullable Boolean resetOffsetAutomatically,
@@ -74,7 +72,6 @@
         maxPendingPersists,
         indexSpec,
         indexSpecForIntermediatePersists,
-        true,
         reportParseExceptions,
         handoffConditionTimeout,
         resetOffsetAutomatically,
diff --git a/extensions-core/kinesis-indexing-service/src/main/java/org/apache/druid/indexing/kinesis/KinesisIndexTaskTuningConfig.java b/extensions-core/kinesis-indexing-service/src/main/java/org/apache/druid/indexing/kinesis/KinesisIndexTaskTuningConfig.java
index 2bbfffe..abf2793 100644
--- a/extensions-core/kinesis-indexing-service/src/main/java/org/apache/druid/indexing/kinesis/KinesisIndexTaskTuningConfig.java
+++ b/extensions-core/kinesis-indexing-service/src/main/java/org/apache/druid/indexing/kinesis/KinesisIndexTaskTuningConfig.java
@@ -62,7 +62,6 @@
       @JsonProperty("maxPendingPersists") Integer maxPendingPersists,
       @JsonProperty("indexSpec") IndexSpec indexSpec,
       @JsonProperty("indexSpecForIntermediatePersists") @Nullable IndexSpec indexSpecForIntermediatePersists,
-      @JsonProperty("buildV9Directly") Boolean buildV9Directly,
       @JsonProperty("reportParseExceptions") Boolean reportParseExceptions,
       @JsonProperty("handoffConditionTimeout") Long handoffConditionTimeout,
       @JsonProperty("resetOffsetAutomatically") Boolean resetOffsetAutomatically,
@@ -92,7 +91,6 @@
         maxPendingPersists,
         indexSpec,
         indexSpecForIntermediatePersists,
-        true,
         reportParseExceptions,
         handoffConditionTimeout,
         resetOffsetAutomatically,
@@ -170,7 +168,6 @@
         getMaxPendingPersists(),
         getIndexSpec(),
         getIndexSpecForIntermediatePersists(),
-        true,
         isReportParseExceptions(),
         getHandoffConditionTimeout(),
         isResetOffsetAutomatically(),
diff --git a/extensions-core/kinesis-indexing-service/src/main/java/org/apache/druid/indexing/kinesis/supervisor/KinesisSupervisorTuningConfig.java b/extensions-core/kinesis-indexing-service/src/main/java/org/apache/druid/indexing/kinesis/supervisor/KinesisSupervisorTuningConfig.java
index 56c9456..6fba06d 100644
--- a/extensions-core/kinesis-indexing-service/src/main/java/org/apache/druid/indexing/kinesis/supervisor/KinesisSupervisorTuningConfig.java
+++ b/extensions-core/kinesis-indexing-service/src/main/java/org/apache/druid/indexing/kinesis/supervisor/KinesisSupervisorTuningConfig.java
@@ -77,7 +77,6 @@
         null,
         null,
         null,
-        null,
         null
     );
   }
@@ -94,7 +93,6 @@
       @JsonProperty("maxPendingPersists") Integer maxPendingPersists,
       @JsonProperty("indexSpec") IndexSpec indexSpec,
       @JsonProperty("indexSpecForIntermediatePersists") @Nullable IndexSpec indexSpecForIntermediatePersists,
-      @JsonProperty("buildV9Directly") Boolean buildV9Directly,
       @JsonProperty("reportParseExceptions") Boolean reportParseExceptions,
       @JsonProperty("handoffConditionTimeout") Long handoffConditionTimeout,
       @JsonProperty("resetOffsetAutomatically") Boolean resetOffsetAutomatically,
@@ -131,7 +129,6 @@
         maxPendingPersists,
         indexSpec,
         indexSpecForIntermediatePersists,
-        buildV9Directly,
         reportParseExceptions,
         handoffConditionTimeout,
         resetOffsetAutomatically,
@@ -267,7 +264,6 @@
         getMaxPendingPersists(),
         getIndexSpec(),
         getIndexSpecForIntermediatePersists(),
-        true,
         isReportParseExceptions(),
         getHandoffConditionTimeout(),
         isResetOffsetAutomatically(),
diff --git a/extensions-core/kinesis-indexing-service/src/test/java/org/apache/druid/indexing/kinesis/KinesisIndexTaskSerdeTest.java b/extensions-core/kinesis-indexing-service/src/test/java/org/apache/druid/indexing/kinesis/KinesisIndexTaskSerdeTest.java
index c279a18..f6b3582 100644
--- a/extensions-core/kinesis-indexing-service/src/test/java/org/apache/druid/indexing/kinesis/KinesisIndexTaskSerdeTest.java
+++ b/extensions-core/kinesis-indexing-service/src/test/java/org/apache/druid/indexing/kinesis/KinesisIndexTaskSerdeTest.java
@@ -73,7 +73,6 @@
       null,
       null,
       null,
-      null,
       null
   );
   private static final KinesisIndexTaskIOConfig IO_CONFIG = new KinesisIndexTaskIOConfig(
diff --git a/extensions-core/kinesis-indexing-service/src/test/java/org/apache/druid/indexing/kinesis/KinesisIndexTaskTest.java b/extensions-core/kinesis-indexing-service/src/test/java/org/apache/druid/indexing/kinesis/KinesisIndexTaskTest.java
index 19d2445..ebc4464 100644
--- a/extensions-core/kinesis-indexing-service/src/test/java/org/apache/druid/indexing/kinesis/KinesisIndexTaskTest.java
+++ b/extensions-core/kinesis-indexing-service/src/test/java/org/apache/druid/indexing/kinesis/KinesisIndexTaskTest.java
@@ -2766,7 +2766,6 @@
         null,
         null,
         null,
-        true,
         reportParseExceptions,
         handoffConditionTimeout,
         resetOffsetAutomatically,
diff --git a/extensions-core/kinesis-indexing-service/src/test/java/org/apache/druid/indexing/kinesis/KinesisIndexTaskTuningConfigTest.java b/extensions-core/kinesis-indexing-service/src/test/java/org/apache/druid/indexing/kinesis/KinesisIndexTaskTuningConfigTest.java
index 3600671..3bba03e 100644
--- a/extensions-core/kinesis-indexing-service/src/test/java/org/apache/druid/indexing/kinesis/KinesisIndexTaskTuningConfigTest.java
+++ b/extensions-core/kinesis-indexing-service/src/test/java/org/apache/druid/indexing/kinesis/KinesisIndexTaskTuningConfigTest.java
@@ -74,7 +74,6 @@
     Assert.assertEquals(new Period("PT10M"), config.getIntermediatePersistPeriod());
     Assert.assertEquals(0, config.getMaxPendingPersists());
     Assert.assertEquals(new IndexSpec(), config.getIndexSpec());
-    Assert.assertTrue(config.getBuildV9Directly());
     Assert.assertFalse(config.isReportParseExceptions());
     Assert.assertEquals(0, config.getHandoffConditionTimeout());
     Assert.assertEquals(10000, config.getRecordBufferSize());
@@ -96,7 +95,6 @@
                      + "  \"maxRowsPerSegment\": 100,\n"
                      + "  \"intermediatePersistPeriod\": \"PT1H\",\n"
                      + "  \"maxPendingPersists\": 100,\n"
-                     + "  \"buildV9Directly\": true,\n"
                      + "  \"reportParseExceptions\": true,\n"
                      + "  \"handoffConditionTimeout\": 100,\n"
                      + "  \"recordBufferSize\": 1000,\n"
@@ -125,7 +123,6 @@
     Assert.assertEquals(100, config.getMaxRowsPerSegment().intValue());
     Assert.assertEquals(new Period("PT1H"), config.getIntermediatePersistPeriod());
     Assert.assertEquals(100, config.getMaxPendingPersists());
-    Assert.assertTrue(config.getBuildV9Directly());
     Assert.assertTrue(config.isReportParseExceptions());
     Assert.assertEquals(100, config.getHandoffConditionTimeout());
     Assert.assertEquals(1000, config.getRecordBufferSize());
@@ -153,7 +150,6 @@
         new IndexSpec(),
         new IndexSpec(),
         true,
-        true,
         5L,
         true,
         false,
@@ -184,7 +180,6 @@
     Assert.assertEquals(base.getBasePersistDirectory(), deserialized.getBasePersistDirectory());
     Assert.assertEquals(base.getMaxPendingPersists(), deserialized.getMaxPendingPersists());
     Assert.assertEquals(base.getIndexSpec(), deserialized.getIndexSpec());
-    Assert.assertEquals(base.getBuildV9Directly(), deserialized.getBuildV9Directly());
     Assert.assertEquals(base.isReportParseExceptions(), deserialized.isReportParseExceptions());
     Assert.assertEquals(base.getHandoffConditionTimeout(), deserialized.getHandoffConditionTimeout());
     Assert.assertEquals(base.isResetOffsetAutomatically(), deserialized.isResetOffsetAutomatically());
@@ -215,7 +210,6 @@
         new IndexSpec(),
         new IndexSpec(),
         true,
-        true,
         5L,
         true,
         false,
@@ -245,7 +239,6 @@
     Assert.assertEquals(base.getBasePersistDirectory(), deserialized.getBasePersistDirectory());
     Assert.assertEquals(base.getMaxPendingPersists(), deserialized.getMaxPendingPersists());
     Assert.assertEquals(base.getIndexSpec(), deserialized.getIndexSpec());
-    Assert.assertEquals(base.getBuildV9Directly(), deserialized.getBuildV9Directly());
     Assert.assertEquals(base.isReportParseExceptions(), deserialized.isReportParseExceptions());
     Assert.assertEquals(base.getHandoffConditionTimeout(), deserialized.getHandoffConditionTimeout());
     Assert.assertEquals(base.isResetOffsetAutomatically(), deserialized.isResetOffsetAutomatically());
@@ -270,7 +263,6 @@
                      + "  \"maxRowsPerSegment\": 100,\n"
                      + "  \"intermediatePersistPeriod\": \"PT1H\",\n"
                      + "  \"maxPendingPersists\": 100,\n"
-                     + "  \"buildV9Directly\": true,\n"
                      + "  \"reportParseExceptions\": true,\n"
                      + "  \"handoffConditionTimeout\": 100,\n"
                      + "  \"recordBufferSize\": 1000,\n"
@@ -305,7 +297,6 @@
         new IndexSpec(),
         new IndexSpec(),
         true,
-        true,
         5L,
         true,
         false,
@@ -339,7 +330,6 @@
     Assert.assertEquals(new File("/tmp/xxx"), copy.getBasePersistDirectory());
     Assert.assertEquals(4, copy.getMaxPendingPersists());
     Assert.assertEquals(new IndexSpec(), copy.getIndexSpec());
-    Assert.assertTrue(copy.getBuildV9Directly());
     Assert.assertTrue(copy.isReportParseExceptions());
     Assert.assertEquals(5L, copy.getHandoffConditionTimeout());
     Assert.assertEquals(1000, copy.getRecordBufferSize());
diff --git a/extensions-core/kinesis-indexing-service/src/test/java/org/apache/druid/indexing/kinesis/supervisor/KinesisSupervisorTest.java b/extensions-core/kinesis-indexing-service/src/test/java/org/apache/druid/indexing/kinesis/supervisor/KinesisSupervisorTest.java
index 5d1d0f6..52ef70a 100644
--- a/extensions-core/kinesis-indexing-service/src/test/java/org/apache/druid/indexing/kinesis/supervisor/KinesisSupervisorTest.java
+++ b/extensions-core/kinesis-indexing-service/src/test/java/org/apache/druid/indexing/kinesis/supervisor/KinesisSupervisorTest.java
@@ -181,7 +181,6 @@
         null,
         null,
         null,
-        true,
         false,
         null,
         null,
@@ -3772,7 +3771,6 @@
         null,
         null,
         null,
-        true,
         false,
         null,
         null,
@@ -4827,7 +4825,6 @@
         null,
         null,
         null,
-        true,
         false,
         null,
         resetOffsetAutomatically,
diff --git a/extensions-core/kinesis-indexing-service/src/test/java/org/apache/druid/indexing/kinesis/supervisor/KinesisSupervisorTuningConfigTest.java b/extensions-core/kinesis-indexing-service/src/test/java/org/apache/druid/indexing/kinesis/supervisor/KinesisSupervisorTuningConfigTest.java
index ff3edc4..c043cbd 100644
--- a/extensions-core/kinesis-indexing-service/src/test/java/org/apache/druid/indexing/kinesis/supervisor/KinesisSupervisorTuningConfigTest.java
+++ b/extensions-core/kinesis-indexing-service/src/test/java/org/apache/druid/indexing/kinesis/supervisor/KinesisSupervisorTuningConfigTest.java
@@ -65,7 +65,6 @@
     Assert.assertEquals(new Period("PT10M"), config.getIntermediatePersistPeriod());
     Assert.assertEquals(0, config.getMaxPendingPersists());
     Assert.assertEquals(new IndexSpec(), config.getIndexSpec());
-    Assert.assertEquals(true, config.getBuildV9Directly());
     Assert.assertEquals(false, config.isReportParseExceptions());
     Assert.assertEquals(0, config.getHandoffConditionTimeout());
     Assert.assertNull(config.getWorkerThreads());
@@ -86,7 +85,6 @@
                      + "  \"maxRowsPerSegment\": 100,\n"
                      + "  \"intermediatePersistPeriod\": \"PT1H\",\n"
                      + "  \"maxPendingPersists\": 100,\n"
-                     + "  \"buildV9Directly\": false,\n"
                      + "  \"reportParseExceptions\": true,\n"
                      + "  \"handoffConditionTimeout\": 100,\n"
                      + "  \"workerThreads\": 12,\n"
@@ -114,7 +112,6 @@
     Assert.assertEquals(100, config.getMaxRowsPerSegment().intValue());
     Assert.assertEquals(new Period("PT1H"), config.getIntermediatePersistPeriod());
     Assert.assertEquals(100, config.getMaxPendingPersists());
-    Assert.assertEquals(true, config.getBuildV9Directly());
     Assert.assertEquals(true, config.isReportParseExceptions());
     Assert.assertEquals(100, config.getHandoffConditionTimeout());
     Assert.assertEquals(12, (int) config.getWorkerThreads());
diff --git a/extensions-core/kinesis-indexing-service/src/test/java/org/apache/druid/indexing/kinesis/test/TestModifiedKinesisIndexTaskTuningConfig.java b/extensions-core/kinesis-indexing-service/src/test/java/org/apache/druid/indexing/kinesis/test/TestModifiedKinesisIndexTaskTuningConfig.java
index 9278c10..ed3a20c 100644
--- a/extensions-core/kinesis-indexing-service/src/test/java/org/apache/druid/indexing/kinesis/test/TestModifiedKinesisIndexTaskTuningConfig.java
+++ b/extensions-core/kinesis-indexing-service/src/test/java/org/apache/druid/indexing/kinesis/test/TestModifiedKinesisIndexTaskTuningConfig.java
@@ -49,7 +49,6 @@
       @JsonProperty("maxPendingPersists") Integer maxPendingPersists,
       @JsonProperty("indexSpec") IndexSpec indexSpec,
       @JsonProperty("indexSpecForIntermediatePersists") @Nullable IndexSpec indexSpecForIntermediatePersists,
-      @JsonProperty("buildV9Directly") Boolean buildV9Directly,
       @JsonProperty("reportParseExceptions") Boolean reportParseExceptions,
       @JsonProperty("handoffConditionTimeout") Long handoffConditionTimeout,
       @JsonProperty("resetOffsetAutomatically") Boolean resetOffsetAutomatically,
@@ -80,7 +79,6 @@
         maxPendingPersists,
         indexSpec,
         indexSpecForIntermediatePersists,
-        buildV9Directly,
         reportParseExceptions,
         handoffConditionTimeout,
         resetOffsetAutomatically,
@@ -114,7 +112,6 @@
         base.getMaxPendingPersists(),
         base.getIndexSpec(),
         base.getIndexSpecForIntermediatePersists(),
-        base.getBuildV9Directly(),
         base.isReportParseExceptions(),
         base.getHandoffConditionTimeout(),
         base.isResetOffsetAutomatically(),
diff --git a/indexing-hadoop/src/main/java/org/apache/druid/indexer/HadoopTuningConfig.java b/indexing-hadoop/src/main/java/org/apache/druid/indexer/HadoopTuningConfig.java
index e4b9b533..eefdbb1 100644
--- a/indexing-hadoop/src/main/java/org/apache/druid/indexer/HadoopTuningConfig.java
+++ b/indexing-hadoop/src/main/java/org/apache/druid/indexer/HadoopTuningConfig.java
@@ -67,7 +67,6 @@
         false,
         false,
         null,
-        true,
         DEFAULT_NUM_BACKGROUND_PERSIST_THREADS,
         false,
         false,
@@ -124,8 +123,6 @@
       final @JsonProperty("useCombiner") @Nullable Boolean useCombiner,
       // See https://github.com/apache/druid/pull/1922
       final @JsonProperty("rowFlushBoundary") @Nullable Integer maxRowsInMemoryCOMPAT,
-      // This parameter is left for compatibility when reading existing configs, to be removed in Druid 0.12.
-      final @JsonProperty("buildV9Directly") Boolean buildV9Directly,
       final @JsonProperty("numBackgroundPersistThreads") @Nullable Integer numBackgroundPersistThreads,
       final @JsonProperty("forceExtendableShardSpecs") boolean forceExtendableShardSpecs,
       final @JsonProperty("useExplicitVersion") boolean useExplicitVersion,
@@ -290,16 +287,6 @@
     return useCombiner;
   }
 
-  /**
-   * Always returns true, doesn't affect the version being built.
-   */
-  @Deprecated
-  @JsonProperty
-  public Boolean getBuildV9Directly()
-  {
-    return true;
-  }
-
   @JsonProperty
   public int getNumBackgroundPersistThreads()
   {
@@ -369,7 +356,6 @@
         combineText,
         useCombiner,
         null,
-        true,
         numBackgroundPersistThreads,
         forceExtendableShardSpecs,
         useExplicitVersion,
@@ -401,7 +387,6 @@
         combineText,
         useCombiner,
         null,
-        true,
         numBackgroundPersistThreads,
         forceExtendableShardSpecs,
         useExplicitVersion,
@@ -433,7 +418,6 @@
         combineText,
         useCombiner,
         null,
-        true,
         numBackgroundPersistThreads,
         forceExtendableShardSpecs,
         useExplicitVersion,
diff --git a/indexing-hadoop/src/test/java/org/apache/druid/indexer/BatchDeltaIngestionTest.java b/indexing-hadoop/src/test/java/org/apache/druid/indexer/BatchDeltaIngestionTest.java
index 913c648..0871ac3 100644
--- a/indexing-hadoop/src/test/java/org/apache/druid/indexer/BatchDeltaIngestionTest.java
+++ b/indexing-hadoop/src/test/java/org/apache/druid/indexer/BatchDeltaIngestionTest.java
@@ -483,7 +483,6 @@
                 false,
                 null,
                 null,
-                null,
                 false,
                 false,
                 null,
diff --git a/indexing-hadoop/src/test/java/org/apache/druid/indexer/DetermineHashedPartitionsJobTest.java b/indexing-hadoop/src/test/java/org/apache/druid/indexer/DetermineHashedPartitionsJobTest.java
index 1bb672c..e0ce612 100644
--- a/indexing-hadoop/src/test/java/org/apache/druid/indexer/DetermineHashedPartitionsJobTest.java
+++ b/indexing-hadoop/src/test/java/org/apache/druid/indexer/DetermineHashedPartitionsJobTest.java
@@ -229,7 +229,6 @@
             false,
             null,
             null,
-            null,
             false,
             false,
             null,
diff --git a/indexing-hadoop/src/test/java/org/apache/druid/indexer/DeterminePartitionsJobTest.java b/indexing-hadoop/src/test/java/org/apache/druid/indexer/DeterminePartitionsJobTest.java
index b73b47c..9469bad 100644
--- a/indexing-hadoop/src/test/java/org/apache/druid/indexer/DeterminePartitionsJobTest.java
+++ b/indexing-hadoop/src/test/java/org/apache/druid/indexer/DeterminePartitionsJobTest.java
@@ -338,7 +338,6 @@
                 false,
                 null,
                 null,
-                null,
                 false,
                 false,
                 null,
diff --git a/indexing-hadoop/src/test/java/org/apache/druid/indexer/HadoopDruidIndexerConfigTest.java b/indexing-hadoop/src/test/java/org/apache/druid/indexer/HadoopDruidIndexerConfigTest.java
index 86e35d0..aec198a 100644
--- a/indexing-hadoop/src/test/java/org/apache/druid/indexer/HadoopDruidIndexerConfigTest.java
+++ b/indexing-hadoop/src/test/java/org/apache/druid/indexer/HadoopDruidIndexerConfigTest.java
@@ -251,7 +251,6 @@
           false,
           null,
           null,
-          null,
           false,
           false,
           null,
diff --git a/indexing-hadoop/src/test/java/org/apache/druid/indexer/HadoopTuningConfigTest.java b/indexing-hadoop/src/test/java/org/apache/druid/indexer/HadoopTuningConfigTest.java
index 230c6c0..0bac6b2 100644
--- a/indexing-hadoop/src/test/java/org/apache/druid/indexer/HadoopTuningConfigTest.java
+++ b/indexing-hadoop/src/test/java/org/apache/druid/indexer/HadoopTuningConfigTest.java
@@ -57,7 +57,6 @@
         true,
         null,
         null,
-        null,
         true,
         true,
         null,
diff --git a/indexing-hadoop/src/test/java/org/apache/druid/indexer/IndexGeneratorJobTest.java b/indexing-hadoop/src/test/java/org/apache/druid/indexer/IndexGeneratorJobTest.java
index 24ff122..2e42d59 100644
--- a/indexing-hadoop/src/test/java/org/apache/druid/indexer/IndexGeneratorJobTest.java
+++ b/indexing-hadoop/src/test/java/org/apache/druid/indexer/IndexGeneratorJobTest.java
@@ -540,7 +540,6 @@
                 false,
                 useCombiner,
                 null,
-                true,
                 null,
                 forceExtendableShardSpecs,
                 false,
diff --git a/indexing-hadoop/src/test/java/org/apache/druid/indexer/JobHelperTest.java b/indexing-hadoop/src/test/java/org/apache/druid/indexer/JobHelperTest.java
index 9115edd..6f8e84a 100644
--- a/indexing-hadoop/src/test/java/org/apache/druid/indexer/JobHelperTest.java
+++ b/indexing-hadoop/src/test/java/org/apache/druid/indexer/JobHelperTest.java
@@ -181,7 +181,6 @@
                 false,
                 null,
                 null,
-                null,
                 false,
                 false,
                 null,
diff --git a/indexing-hadoop/src/test/java/org/apache/druid/indexer/path/GranularityPathSpecTest.java b/indexing-hadoop/src/test/java/org/apache/druid/indexer/path/GranularityPathSpecTest.java
index 8fc3e6c..fcecb0b 100644
--- a/indexing-hadoop/src/test/java/org/apache/druid/indexer/path/GranularityPathSpecTest.java
+++ b/indexing-hadoop/src/test/java/org/apache/druid/indexer/path/GranularityPathSpecTest.java
@@ -73,7 +73,6 @@
       false,
       null,
       null,
-      null,
       false,
       false,
       null,
diff --git a/indexing-service/src/main/java/org/apache/druid/indexing/common/task/IndexTask.java b/indexing-service/src/main/java/org/apache/druid/indexing/common/task/IndexTask.java
index e677995..a798522 100644
--- a/indexing-service/src/main/java/org/apache/druid/indexing/common/task/IndexTask.java
+++ b/indexing-service/src/main/java/org/apache/druid/indexing/common/task/IndexTask.java
@@ -1481,15 +1481,6 @@
       return maxPendingPersists;
     }
 
-    /**
-     * Always returns true, doesn't affect the version being built.
-     */
-    @Deprecated
-    @JsonProperty
-    public boolean isBuildV9Directly()
-    {
-      return true;
-    }
 
     @JsonProperty
     public boolean isForceGuaranteedRollup()
diff --git a/indexing-service/src/main/java/org/apache/druid/indexing/seekablestream/SeekableStreamIndexTaskTuningConfig.java b/indexing-service/src/main/java/org/apache/druid/indexing/seekablestream/SeekableStreamIndexTaskTuningConfig.java
index bad2f79..2d3445f 100644
--- a/indexing-service/src/main/java/org/apache/druid/indexing/seekablestream/SeekableStreamIndexTaskTuningConfig.java
+++ b/indexing-service/src/main/java/org/apache/druid/indexing/seekablestream/SeekableStreamIndexTaskTuningConfig.java
@@ -73,8 +73,6 @@
       @Nullable Integer maxPendingPersists,
       @Nullable IndexSpec indexSpec,
       @Nullable IndexSpec indexSpecForIntermediatePersists,
-      // This parameter is left for compatibility when reading existing configs, to be removed in Druid 0.12.
-      @Deprecated @JsonProperty("buildV9Directly") @Nullable Boolean buildV9Directly,
       @Deprecated @Nullable Boolean reportParseExceptions,
       @Nullable Long handoffConditionTimeout,
       @Nullable Boolean resetOffsetAutomatically,
@@ -223,16 +221,6 @@
     return indexSpecForIntermediatePersists;
   }
 
-  /**
-   * Always returns true, doesn't affect the version being built.
-   */
-  @Deprecated
-  @JsonProperty
-  public boolean getBuildV9Directly()
-  {
-    return true;
-  }
-
   @Override
   @JsonProperty
   public boolean isReportParseExceptions()
diff --git a/indexing-service/src/test/java/org/apache/druid/indexing/common/task/RealtimeIndexTaskTest.java b/indexing-service/src/test/java/org/apache/druid/indexing/common/task/RealtimeIndexTaskTest.java
index 0a2e34d..965658d 100644
--- a/indexing-service/src/test/java/org/apache/druid/indexing/common/task/RealtimeIndexTaskTest.java
+++ b/indexing-service/src/test/java/org/apache/druid/indexing/common/task/RealtimeIndexTaskTest.java
@@ -843,7 +843,6 @@
         null,
         null,
         null,
-        true,
         0,
         0,
         reportParseExceptions,
diff --git a/indexing-service/src/test/java/org/apache/druid/indexing/common/task/TaskSerdeTest.java b/indexing-service/src/test/java/org/apache/druid/indexing/common/task/TaskSerdeTest.java
index 2d026d6..20c7eb4 100644
--- a/indexing-service/src/test/java/org/apache/druid/indexing/common/task/TaskSerdeTest.java
+++ b/indexing-service/src/test/java/org/apache/druid/indexing/common/task/TaskSerdeTest.java
@@ -418,7 +418,6 @@
                 NoneShardSpec.instance(),
                 indexSpec,
                 null,
-                null,
                 0,
                 0,
                 true,
diff --git a/indexing-service/src/test/java/org/apache/druid/indexing/overlord/TaskLifecycleTest.java b/indexing-service/src/test/java/org/apache/druid/indexing/overlord/TaskLifecycleTest.java
index 613e0ac..fc99375 100644
--- a/indexing-service/src/test/java/org/apache/druid/indexing/overlord/TaskLifecycleTest.java
+++ b/indexing-service/src/test/java/org/apache/druid/indexing/overlord/TaskLifecycleTest.java
@@ -1498,7 +1498,6 @@
         null,
         null,
         null,
-        null,
         0,
         0,
         null,
diff --git a/indexing-service/src/test/java/org/apache/druid/indexing/seekablestream/SeekableStreamSupervisorSpecTest.java b/indexing-service/src/test/java/org/apache/druid/indexing/seekablestream/SeekableStreamSupervisorSpecTest.java
index 51a39fc..2edcb82 100644
--- a/indexing-service/src/test/java/org/apache/druid/indexing/seekablestream/SeekableStreamSupervisorSpecTest.java
+++ b/indexing-service/src/test/java/org/apache/druid/indexing/seekablestream/SeekableStreamSupervisorSpecTest.java
@@ -501,7 +501,6 @@
                 null,
                 null,
                 null,
-                null,
                 null
         )
         {
diff --git a/indexing-service/src/test/java/org/apache/druid/indexing/seekablestream/supervisor/SeekableStreamSupervisorStateTest.java b/indexing-service/src/test/java/org/apache/druid/indexing/seekablestream/supervisor/SeekableStreamSupervisorStateTest.java
index 42e8c55..91dd10a 100644
--- a/indexing-service/src/test/java/org/apache/druid/indexing/seekablestream/supervisor/SeekableStreamSupervisorStateTest.java
+++ b/indexing-service/src/test/java/org/apache/druid/indexing/seekablestream/supervisor/SeekableStreamSupervisorStateTest.java
@@ -925,7 +925,6 @@
             null,
             null,
             null,
-            null,
             null
         )
         {
diff --git a/server/src/main/java/org/apache/druid/segment/indexing/RealtimeTuningConfig.java b/server/src/main/java/org/apache/druid/segment/indexing/RealtimeTuningConfig.java
index e7b4525..6901faf 100644
--- a/server/src/main/java/org/apache/druid/segment/indexing/RealtimeTuningConfig.java
+++ b/server/src/main/java/org/apache/druid/segment/indexing/RealtimeTuningConfig.java
@@ -78,7 +78,6 @@
         DEFAULT_SHARD_SPEC,
         DEFAULT_INDEX_SPEC,
         DEFAULT_INDEX_SPEC,
-        true,
         0,
         0,
         DEFAULT_REPORT_PARSE_EXCEPTIONS,
@@ -127,8 +126,6 @@
       @JsonProperty("shardSpec") ShardSpec shardSpec,
       @JsonProperty("indexSpec") IndexSpec indexSpec,
       @JsonProperty("indexSpecForIntermediatePersists") @Nullable IndexSpec indexSpecForIntermediatePersists,
-      // This parameter is left for compatibility when reading existing configs, to be removed in Druid 0.12.
-      @JsonProperty("buildV9Directly") Boolean buildV9Directly,
       @JsonProperty("persistThreadPriority") int persistThreadPriority,
       @JsonProperty("mergeThreadPriority") int mergeThreadPriority,
       @JsonProperty("reportParseExceptions") Boolean reportParseExceptions,
@@ -268,16 +265,6 @@
     return indexSpecForIntermediatePersists;
   }
 
-  /**
-   * Always returns true, doesn't affect the version being built.
-   */
-  @Deprecated
-  @JsonProperty
-  public Boolean getBuildV9Directly()
-  {
-    return true;
-  }
-
   @JsonProperty
   public int getPersistThreadPriority()
   {
@@ -340,7 +327,6 @@
         shardSpec,
         indexSpec,
         indexSpecForIntermediatePersists,
-        true,
         persistThreadPriority,
         mergeThreadPriority,
         reportParseExceptions,
@@ -368,7 +354,6 @@
         shardSpec,
         indexSpec,
         indexSpecForIntermediatePersists,
-        true,
         persistThreadPriority,
         mergeThreadPriority,
         reportParseExceptions,
diff --git a/server/src/test/java/org/apache/druid/segment/realtime/appenderator/AppenderatorPlumberTest.java b/server/src/test/java/org/apache/druid/segment/realtime/appenderator/AppenderatorPlumberTest.java
index 78210d3..c07fbd0 100644
--- a/server/src/test/java/org/apache/druid/segment/realtime/appenderator/AppenderatorPlumberTest.java
+++ b/server/src/test/java/org/apache/druid/segment/realtime/appenderator/AppenderatorPlumberTest.java
@@ -75,7 +75,6 @@
         null,
         null,
         null,
-        true,
         0,
         0,
         false,
diff --git a/server/src/test/java/org/apache/druid/segment/realtime/appenderator/AppenderatorTester.java b/server/src/test/java/org/apache/druid/segment/realtime/appenderator/AppenderatorTester.java
index 1231b77..600662e 100644
--- a/server/src/test/java/org/apache/druid/segment/realtime/appenderator/AppenderatorTester.java
+++ b/server/src/test/java/org/apache/druid/segment/realtime/appenderator/AppenderatorTester.java
@@ -187,7 +187,6 @@
         null,
         null,
         null,
-        null,
         0,
         0,
         null,
diff --git a/server/src/test/java/org/apache/druid/segment/realtime/appenderator/DefaultOfflineAppenderatorFactoryTest.java b/server/src/test/java/org/apache/druid/segment/realtime/appenderator/DefaultOfflineAppenderatorFactoryTest.java
index 491f4b2..36c9c5b 100644
--- a/server/src/test/java/org/apache/druid/segment/realtime/appenderator/DefaultOfflineAppenderatorFactoryTest.java
+++ b/server/src/test/java/org/apache/druid/segment/realtime/appenderator/DefaultOfflineAppenderatorFactoryTest.java
@@ -147,7 +147,6 @@
         null,
         null,
         null,
-        null,
         0,
         0,
         null,
diff --git a/server/src/test/java/org/apache/druid/segment/realtime/plumber/RealtimePlumberSchoolTest.java b/server/src/test/java/org/apache/druid/segment/realtime/plumber/RealtimePlumberSchoolTest.java
index f294422..0039690 100644
--- a/server/src/test/java/org/apache/druid/segment/realtime/plumber/RealtimePlumberSchoolTest.java
+++ b/server/src/test/java/org/apache/druid/segment/realtime/plumber/RealtimePlumberSchoolTest.java
@@ -214,7 +214,6 @@
         null,
         null,
         null,
-        true,
         0,
         0,
         false,
diff --git a/server/src/test/java/org/apache/druid/segment/realtime/plumber/SinkTest.java b/server/src/test/java/org/apache/druid/segment/realtime/plumber/SinkTest.java
index 9c79251..de12c4c 100644
--- a/server/src/test/java/org/apache/druid/segment/realtime/plumber/SinkTest.java
+++ b/server/src/test/java/org/apache/druid/segment/realtime/plumber/SinkTest.java
@@ -78,7 +78,6 @@
         null,
         null,
         null,
-        null,
         0,
         0,
         null,
@@ -235,7 +234,6 @@
         null,
         null,
         null,
-        null,
         0,
         0,
         null,
diff --git a/services/src/test/java/org/apache/druid/cli/validate/DruidJsonValidatorTest.java b/services/src/test/java/org/apache/druid/cli/validate/DruidJsonValidatorTest.java
index 391d47f..e262410 100644
--- a/services/src/test/java/org/apache/druid/cli/validate/DruidJsonValidatorTest.java
+++ b/services/src/test/java/org/apache/druid/cli/validate/DruidJsonValidatorTest.java
@@ -169,7 +169,6 @@
                 NoneShardSpec.instance(),
                 new IndexSpec(),
                 new IndexSpec(),
-                null,
                 0,
                 0,
                 true,