diff --git a/adapter/avro/pom.xml b/adapter/avro/pom.xml
index 2eb77d7539..827d19f2a2 100644
--- a/adapter/avro/pom.xml
+++ b/adapter/avro/pom.xml
@@ -23,7 +23,7 @@ under the License.
   <parent>
     <groupId>org.apache.arrow</groupId>
     <artifactId>arrow-java-root</artifactId>
-    <version>18.2.0</version>
+    <version>19.0.0-SNAPSHOT</version>
     <relativePath>../../pom.xml</relativePath>
   </parent>
 
diff --git a/adapter/jdbc/pom.xml b/adapter/jdbc/pom.xml
index 57a728124b..2f621d7a05 100644
--- a/adapter/jdbc/pom.xml
+++ b/adapter/jdbc/pom.xml
@@ -23,7 +23,7 @@ under the License.
   <parent>
     <groupId>org.apache.arrow</groupId>
     <artifactId>arrow-java-root</artifactId>
-    <version>18.2.0</version>
+    <version>19.0.0-SNAPSHOT</version>
     <relativePath>../../pom.xml</relativePath>
   </parent>
 
diff --git a/adapter/orc/pom.xml b/adapter/orc/pom.xml
index b8ff0aa409..8b45dd72c9 100644
--- a/adapter/orc/pom.xml
+++ b/adapter/orc/pom.xml
@@ -23,7 +23,7 @@ under the License.
   <parent>
     <groupId>org.apache.arrow</groupId>
     <artifactId>arrow-java-root</artifactId>
-    <version>18.2.0</version>
+    <version>19.0.0-SNAPSHOT</version>
     <relativePath>../../pom.xml</relativePath>
   </parent>
 
diff --git a/algorithm/pom.xml b/algorithm/pom.xml
index 3bcbfa5062..898c2605b6 100644
--- a/algorithm/pom.xml
+++ b/algorithm/pom.xml
@@ -22,7 +22,7 @@ under the License.
   <parent>
     <groupId>org.apache.arrow</groupId>
     <artifactId>arrow-java-root</artifactId>
-    <version>18.2.0</version>
+    <version>19.0.0-SNAPSHOT</version>
   </parent>
   <artifactId>arrow-algorithm</artifactId>
   <name>Arrow Algorithms</name>
diff --git a/bom/pom.xml b/bom/pom.xml
index 192b494eb2..61441048ff 100644
--- a/bom/pom.xml
+++ b/bom/pom.xml
@@ -29,7 +29,7 @@ under the License.
 
   <groupId>org.apache.arrow</groupId>
   <artifactId>arrow-bom</artifactId>
-  <version>18.2.0</version>
+  <version>19.0.0-SNAPSHOT</version>
   <packaging>pom</packaging>
 
   <name>Arrow Bill of Materials</name>
@@ -68,7 +68,7 @@ under the License.
   <scm child.scm.connection.inherit.append.path="false" child.scm.developerConnection.inherit.append.path="false" child.scm.url.inherit.append.path="false">
     <connection>scm:git:https://github.com/apache/arrow-java.git</connection>
     <developerConnection>scm:git:https://github.com/apache/arrow-java.git</developerConnection>
-    <tag>v18.2.0</tag>
+    <tag>main</tag>
     <url>https://github.com/apache/arrow-java/tree/${project.scm.tag}</url>
   </scm>
 
diff --git a/c/pom.xml b/c/pom.xml
index 48e9fafdf5..c90b6dc0ef 100644
--- a/c/pom.xml
+++ b/c/pom.xml
@@ -22,7 +22,7 @@ under the License.
   <parent>
     <groupId>org.apache.arrow</groupId>
     <artifactId>arrow-java-root</artifactId>
-    <version>18.2.0</version>
+    <version>19.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>arrow-c-data</artifactId>
diff --git a/compression/pom.xml b/compression/pom.xml
index 6ef36fe8ab..3c339d557a 100644
--- a/compression/pom.xml
+++ b/compression/pom.xml
@@ -22,7 +22,7 @@ under the License.
   <parent>
     <groupId>org.apache.arrow</groupId>
     <artifactId>arrow-java-root</artifactId>
-    <version>18.2.0</version>
+    <version>19.0.0-SNAPSHOT</version>
   </parent>
   <artifactId>arrow-compression</artifactId>
   <name>Arrow Compression</name>
diff --git a/dataset/pom.xml b/dataset/pom.xml
index ad21c7754a..4ff931d307 100644
--- a/dataset/pom.xml
+++ b/dataset/pom.xml
@@ -22,7 +22,7 @@ under the License.
   <parent>
     <groupId>org.apache.arrow</groupId>
     <artifactId>arrow-java-root</artifactId>
-    <version>18.2.0</version>
+    <version>19.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>arrow-dataset</artifactId>
diff --git a/flight/flight-core/pom.xml b/flight/flight-core/pom.xml
index 3960c412b6..7484349730 100644
--- a/flight/flight-core/pom.xml
+++ b/flight/flight-core/pom.xml
@@ -22,7 +22,7 @@ under the License.
   <parent>
     <groupId>org.apache.arrow</groupId>
     <artifactId>arrow-flight</artifactId>
-    <version>18.2.0</version>
+    <version>19.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>flight-core</artifactId>
diff --git a/flight/flight-integration-tests/pom.xml b/flight/flight-integration-tests/pom.xml
index b1e06d2f07..78a2d08ee1 100644
--- a/flight/flight-integration-tests/pom.xml
+++ b/flight/flight-integration-tests/pom.xml
@@ -22,7 +22,7 @@ under the License.
   <parent>
     <groupId>org.apache.arrow</groupId>
     <artifactId>arrow-flight</artifactId>
-    <version>18.2.0</version>
+    <version>19.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>flight-integration-tests</artifactId>
diff --git a/flight/flight-sql-jdbc-core/pom.xml b/flight/flight-sql-jdbc-core/pom.xml
index ab3560459b..204e17efe8 100644
--- a/flight/flight-sql-jdbc-core/pom.xml
+++ b/flight/flight-sql-jdbc-core/pom.xml
@@ -22,7 +22,7 @@ under the License.
   <parent>
     <groupId>org.apache.arrow</groupId>
     <artifactId>arrow-flight</artifactId>
-    <version>18.2.0</version>
+    <version>19.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>flight-sql-jdbc-core</artifactId>
diff --git a/flight/flight-sql-jdbc-driver/pom.xml b/flight/flight-sql-jdbc-driver/pom.xml
index fd08acd359..559c42597d 100644
--- a/flight/flight-sql-jdbc-driver/pom.xml
+++ b/flight/flight-sql-jdbc-driver/pom.xml
@@ -22,7 +22,7 @@ under the License.
   <parent>
     <groupId>org.apache.arrow</groupId>
     <artifactId>arrow-flight</artifactId>
-    <version>18.2.0</version>
+    <version>19.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>flight-sql-jdbc-driver</artifactId>
diff --git a/flight/flight-sql/pom.xml b/flight/flight-sql/pom.xml
index 4b5c5560c9..5d8e720fd6 100644
--- a/flight/flight-sql/pom.xml
+++ b/flight/flight-sql/pom.xml
@@ -22,7 +22,7 @@ under the License.
   <parent>
     <groupId>org.apache.arrow</groupId>
     <artifactId>arrow-flight</artifactId>
-    <version>18.2.0</version>
+    <version>19.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>flight-sql</artifactId>
diff --git a/flight/pom.xml b/flight/pom.xml
index 35dfe90468..2fc3e89ef8 100644
--- a/flight/pom.xml
+++ b/flight/pom.xml
@@ -22,7 +22,7 @@ under the License.
   <parent>
     <groupId>org.apache.arrow</groupId>
     <artifactId>arrow-java-root</artifactId>
-    <version>18.2.0</version>
+    <version>19.0.0-SNAPSHOT</version>
   </parent>
   <artifactId>arrow-flight</artifactId>
 
diff --git a/format/pom.xml b/format/pom.xml
index 292f23bcd2..d3578b63d2 100644
--- a/format/pom.xml
+++ b/format/pom.xml
@@ -23,7 +23,7 @@ under the License.
   <parent>
     <groupId>org.apache.arrow</groupId>
     <artifactId>arrow-java-root</artifactId>
-    <version>18.2.0</version>
+    <version>19.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>arrow-format</artifactId>
diff --git a/gandiva/pom.xml b/gandiva/pom.xml
index 384dcb8019..5367bfdedf 100644
--- a/gandiva/pom.xml
+++ b/gandiva/pom.xml
@@ -22,7 +22,7 @@ under the License.
   <parent>
     <groupId>org.apache.arrow</groupId>
     <artifactId>arrow-java-root</artifactId>
-    <version>18.2.0</version>
+    <version>19.0.0-SNAPSHOT</version>
   </parent>
 
   <groupId>org.apache.arrow.gandiva</groupId>
diff --git a/memory/memory-core/pom.xml b/memory/memory-core/pom.xml
index 9432dd2461..72ee69d60a 100644
--- a/memory/memory-core/pom.xml
+++ b/memory/memory-core/pom.xml
@@ -22,7 +22,7 @@ under the License.
   <parent>
     <groupId>org.apache.arrow</groupId>
     <artifactId>arrow-memory</artifactId>
-    <version>18.2.0</version>
+    <version>19.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>arrow-memory-core</artifactId>
diff --git a/memory/memory-netty-buffer-patch/pom.xml b/memory/memory-netty-buffer-patch/pom.xml
index 696fadeba3..07dc7d2403 100644
--- a/memory/memory-netty-buffer-patch/pom.xml
+++ b/memory/memory-netty-buffer-patch/pom.xml
@@ -22,7 +22,7 @@ under the License.
   <parent>
     <groupId>org.apache.arrow</groupId>
     <artifactId>arrow-memory</artifactId>
-    <version>18.2.0</version>
+    <version>19.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>arrow-memory-netty-buffer-patch</artifactId>
diff --git a/memory/memory-netty/pom.xml b/memory/memory-netty/pom.xml
index b81e13cd90..6d660da117 100644
--- a/memory/memory-netty/pom.xml
+++ b/memory/memory-netty/pom.xml
@@ -22,7 +22,7 @@ under the License.
   <parent>
     <groupId>org.apache.arrow</groupId>
     <artifactId>arrow-memory</artifactId>
-    <version>18.2.0</version>
+    <version>19.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>arrow-memory-netty</artifactId>
diff --git a/memory/memory-unsafe/pom.xml b/memory/memory-unsafe/pom.xml
index a476da71b1..92dc0c9fe5 100644
--- a/memory/memory-unsafe/pom.xml
+++ b/memory/memory-unsafe/pom.xml
@@ -22,7 +22,7 @@ under the License.
   <parent>
     <groupId>org.apache.arrow</groupId>
     <artifactId>arrow-memory</artifactId>
-    <version>18.2.0</version>
+    <version>19.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>arrow-memory-unsafe</artifactId>
diff --git a/memory/pom.xml b/memory/pom.xml
index af6babe841..bc34c26050 100644
--- a/memory/pom.xml
+++ b/memory/pom.xml
@@ -22,7 +22,7 @@ under the License.
   <parent>
     <groupId>org.apache.arrow</groupId>
     <artifactId>arrow-java-root</artifactId>
-    <version>18.2.0</version>
+    <version>19.0.0-SNAPSHOT</version>
   </parent>
   <artifactId>arrow-memory</artifactId>
   <packaging>pom</packaging>
diff --git a/performance/pom.xml b/performance/pom.xml
index 507222706d..3f18188e3a 100644
--- a/performance/pom.xml
+++ b/performance/pom.xml
@@ -22,7 +22,7 @@ under the License.
   <parent>
     <groupId>org.apache.arrow</groupId>
     <artifactId>arrow-java-root</artifactId>
-    <version>18.2.0</version>
+    <version>19.0.0-SNAPSHOT</version>
   </parent>
   <artifactId>arrow-performance</artifactId>
   <packaging>jar</packaging>
diff --git a/pom.xml b/pom.xml
index f32edf6997..eca403363c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -28,7 +28,7 @@ under the License.
 
   <groupId>org.apache.arrow</groupId>
   <artifactId>arrow-java-root</artifactId>
-  <version>18.2.0</version>
+  <version>19.0.0-SNAPSHOT</version>
   <packaging>pom</packaging>
 
   <name>Apache Arrow Java Root POM</name>
@@ -81,7 +81,7 @@ under the License.
   <scm child.scm.connection.inherit.append.path="false" child.scm.developerConnection.inherit.append.path="false" child.scm.url.inherit.append.path="false">
     <connection>scm:git:https://github.com/apache/arrow-java.git</connection>
     <developerConnection>scm:git:https://github.com/apache/arrow-java.git</developerConnection>
-    <tag>v18.2.0</tag>
+    <tag>main</tag>
     <url>https://github.com/apache/arrow-java/tree/${project.scm.tag}</url>
   </scm>
 
diff --git a/tools/pom.xml b/tools/pom.xml
index 73edd218b1..cb9a161308 100644
--- a/tools/pom.xml
+++ b/tools/pom.xml
@@ -22,7 +22,7 @@ under the License.
   <parent>
     <groupId>org.apache.arrow</groupId>
     <artifactId>arrow-java-root</artifactId>
-    <version>18.2.0</version>
+    <version>19.0.0-SNAPSHOT</version>
   </parent>
   <artifactId>arrow-tools</artifactId>
   <name>Arrow Tools</name>
diff --git a/vector/pom.xml b/vector/pom.xml
index 503bfaeac5..52ad5105ea 100644
--- a/vector/pom.xml
+++ b/vector/pom.xml
@@ -22,7 +22,7 @@ under the License.
   <parent>
     <groupId>org.apache.arrow</groupId>
     <artifactId>arrow-java-root</artifactId>
-    <version>18.2.0</version>
+    <version>19.0.0-SNAPSHOT</version>
   </parent>
   <artifactId>arrow-vector</artifactId>
   <name>Arrow Vectors</name>