[maven-release-plugin] prepare for next development iteration
diff --git a/parquet-arrow/pom.xml b/parquet-arrow/pom.xml
index dd20e9b..40d4797 100644
--- a/parquet-arrow/pom.xml
+++ b/parquet-arrow/pom.xml
@@ -21,7 +21,7 @@
     <groupId>org.apache.parquet</groupId>
     <artifactId>parquet</artifactId>
     <relativePath>../pom.xml</relativePath>
-    <version>1.12.0</version>
+    <version>1.12.0-SNAPSHOT</version>
   </parent>
 
   <modelVersion>4.0.0</modelVersion>
diff --git a/parquet-avro/pom.xml b/parquet-avro/pom.xml
index c53071d..5845a6f 100644
--- a/parquet-avro/pom.xml
+++ b/parquet-avro/pom.xml
@@ -21,7 +21,7 @@
     <groupId>org.apache.parquet</groupId>
     <artifactId>parquet</artifactId>
     <relativePath>../pom.xml</relativePath>
-    <version>1.12.0</version>
+    <version>1.12.0-SNAPSHOT</version>
   </parent>
 
   <modelVersion>4.0.0</modelVersion>
diff --git a/parquet-benchmarks/pom.xml b/parquet-benchmarks/pom.xml
index 904e4e9..5e33057 100644
--- a/parquet-benchmarks/pom.xml
+++ b/parquet-benchmarks/pom.xml
@@ -21,7 +21,7 @@
     <groupId>org.apache.parquet</groupId>
     <artifactId>parquet</artifactId>
     <relativePath>../pom.xml</relativePath>
-    <version>1.12.0</version>
+    <version>1.12.0-SNAPSHOT</version>
   </parent>
 
   <modelVersion>4.0.0</modelVersion>
diff --git a/parquet-cascading-deprecated/pom.xml b/parquet-cascading-deprecated/pom.xml
index 08f9d47..7148d02 100644
--- a/parquet-cascading-deprecated/pom.xml
+++ b/parquet-cascading-deprecated/pom.xml
@@ -21,7 +21,7 @@
     <groupId>org.apache.parquet</groupId>
     <artifactId>parquet</artifactId>
     <relativePath>../pom.xml</relativePath>
-    <version>1.12.0</version>
+    <version>1.12.0-SNAPSHOT</version>
   </parent>
 
   <modelVersion>4.0.0</modelVersion>
diff --git a/parquet-cascading3-deprecated/pom.xml b/parquet-cascading3-deprecated/pom.xml
index 9c9d638..404be4d 100644
--- a/parquet-cascading3-deprecated/pom.xml
+++ b/parquet-cascading3-deprecated/pom.xml
@@ -21,7 +21,7 @@
     <groupId>org.apache.parquet</groupId>
     <artifactId>parquet</artifactId>
     <relativePath>../pom.xml</relativePath>
-    <version>1.12.0</version>
+    <version>1.12.0-SNAPSHOT</version>
   </parent>
 
   <modelVersion>4.0.0</modelVersion>
diff --git a/parquet-cli/pom.xml b/parquet-cli/pom.xml
index 379e81b..6f1c6d9 100644
--- a/parquet-cli/pom.xml
+++ b/parquet-cli/pom.xml
@@ -21,7 +21,7 @@
     <groupId>org.apache.parquet</groupId>
     <artifactId>parquet</artifactId>
     <relativePath>../pom.xml</relativePath>
-    <version>1.12.0</version>
+    <version>1.12.0-SNAPSHOT</version>
   </parent>
 
   <modelVersion>4.0.0</modelVersion>
diff --git a/parquet-column/pom.xml b/parquet-column/pom.xml
index 30bd635..44fc1a2 100644
--- a/parquet-column/pom.xml
+++ b/parquet-column/pom.xml
@@ -21,7 +21,7 @@
     <groupId>org.apache.parquet</groupId>
     <artifactId>parquet</artifactId>
     <relativePath>../pom.xml</relativePath>
-    <version>1.12.0</version>
+    <version>1.12.0-SNAPSHOT</version>
   </parent>
 
   <modelVersion>4.0.0</modelVersion>
diff --git a/parquet-common/pom.xml b/parquet-common/pom.xml
index c4b944b..7fa4cab 100644
--- a/parquet-common/pom.xml
+++ b/parquet-common/pom.xml
@@ -21,7 +21,7 @@
     <groupId>org.apache.parquet</groupId>
     <artifactId>parquet</artifactId>
     <relativePath>../pom.xml</relativePath>
-    <version>1.12.0</version>
+    <version>1.12.0-SNAPSHOT</version>
   </parent>
 
   <modelVersion>4.0.0</modelVersion>
diff --git a/parquet-encoding/pom.xml b/parquet-encoding/pom.xml
index ac53aa6..6078d7c 100644
--- a/parquet-encoding/pom.xml
+++ b/parquet-encoding/pom.xml
@@ -21,7 +21,7 @@
     <groupId>org.apache.parquet</groupId>
     <artifactId>parquet</artifactId>
     <relativePath>../pom.xml</relativePath>
-    <version>1.12.0</version>
+    <version>1.12.0-SNAPSHOT</version>
   </parent>
 
   <modelVersion>4.0.0</modelVersion>
diff --git a/parquet-format-structures/pom.xml b/parquet-format-structures/pom.xml
index d0aa0ee..c53d82d 100644
--- a/parquet-format-structures/pom.xml
+++ b/parquet-format-structures/pom.xml
@@ -24,7 +24,7 @@
     <groupId>org.apache.parquet</groupId>
     <artifactId>parquet</artifactId>
     <relativePath>../pom.xml</relativePath>
-    <version>1.12.0</version>
+    <version>1.12.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>parquet-format-structures</artifactId>
diff --git a/parquet-generator/pom.xml b/parquet-generator/pom.xml
index 694fbf5..0f3ccaa 100644
--- a/parquet-generator/pom.xml
+++ b/parquet-generator/pom.xml
@@ -21,7 +21,7 @@
     <groupId>org.apache.parquet</groupId>
     <artifactId>parquet</artifactId>
     <relativePath>../pom.xml</relativePath>
-    <version>1.12.0</version>
+    <version>1.12.0-SNAPSHOT</version>
   </parent>
 
   <modelVersion>4.0.0</modelVersion>
diff --git a/parquet-hadoop-bundle/pom.xml b/parquet-hadoop-bundle/pom.xml
index 6e1950a..bbddc95 100644
--- a/parquet-hadoop-bundle/pom.xml
+++ b/parquet-hadoop-bundle/pom.xml
@@ -21,7 +21,7 @@
     <groupId>org.apache.parquet</groupId>
     <artifactId>parquet</artifactId>
     <relativePath>../pom.xml</relativePath>
-    <version>1.12.0</version>
+    <version>1.12.0-SNAPSHOT</version>
   </parent>
 
   <modelVersion>4.0.0</modelVersion>
diff --git a/parquet-hadoop/pom.xml b/parquet-hadoop/pom.xml
index 737fb9a..fb4cdd3 100644
--- a/parquet-hadoop/pom.xml
+++ b/parquet-hadoop/pom.xml
@@ -21,7 +21,7 @@
     <groupId>org.apache.parquet</groupId>
     <artifactId>parquet</artifactId>
     <relativePath>../pom.xml</relativePath>
-    <version>1.12.0</version>
+    <version>1.12.0-SNAPSHOT</version>
   </parent>
 
   <modelVersion>4.0.0</modelVersion>
diff --git a/parquet-jackson/pom.xml b/parquet-jackson/pom.xml
index 3810886..3e8e209 100644
--- a/parquet-jackson/pom.xml
+++ b/parquet-jackson/pom.xml
@@ -21,7 +21,7 @@
     <groupId>org.apache.parquet</groupId>
     <artifactId>parquet</artifactId>
     <relativePath>../pom.xml</relativePath>
-    <version>1.12.0</version>
+    <version>1.12.0-SNAPSHOT</version>
   </parent>
 
   <modelVersion>4.0.0</modelVersion>
diff --git a/parquet-pig-bundle/pom.xml b/parquet-pig-bundle/pom.xml
index a86f6ee..e12753b 100644
--- a/parquet-pig-bundle/pom.xml
+++ b/parquet-pig-bundle/pom.xml
@@ -21,7 +21,7 @@
     <groupId>org.apache.parquet</groupId>
     <artifactId>parquet</artifactId>
     <relativePath>../pom.xml</relativePath>
-    <version>1.12.0</version>
+    <version>1.12.0-SNAPSHOT</version>
   </parent>
 
   <modelVersion>4.0.0</modelVersion>
diff --git a/parquet-pig/pom.xml b/parquet-pig/pom.xml
index ac109b5..a8ab606 100644
--- a/parquet-pig/pom.xml
+++ b/parquet-pig/pom.xml
@@ -21,7 +21,7 @@
     <groupId>org.apache.parquet</groupId>
     <artifactId>parquet</artifactId>
     <relativePath>../pom.xml</relativePath>
-    <version>1.12.0</version>
+    <version>1.12.0-SNAPSHOT</version>
   </parent>
 
   <modelVersion>4.0.0</modelVersion>
diff --git a/parquet-protobuf/pom.xml b/parquet-protobuf/pom.xml
index 9e24b07..210ec70 100644
--- a/parquet-protobuf/pom.xml
+++ b/parquet-protobuf/pom.xml
@@ -21,7 +21,7 @@
     <groupId>org.apache.parquet</groupId>
     <artifactId>parquet</artifactId>
     <relativePath>../pom.xml</relativePath>
-    <version>1.12.0</version>
+    <version>1.12.0-SNAPSHOT</version>
   </parent>
 
   <modelVersion>4.0.0</modelVersion>
diff --git a/parquet-scala/pom.xml b/parquet-scala/pom.xml
index 482dc07..0431317 100644
--- a/parquet-scala/pom.xml
+++ b/parquet-scala/pom.xml
@@ -21,7 +21,7 @@
     <groupId>org.apache.parquet</groupId>
     <artifactId>parquet</artifactId>
     <relativePath>../pom.xml</relativePath>
-    <version>1.12.0</version>
+    <version>1.12.0-SNAPSHOT</version>
   </parent>
 
   <modelVersion>4.0.0</modelVersion>
diff --git a/parquet-scrooge-deprecated/pom.xml b/parquet-scrooge-deprecated/pom.xml
index 9c762e0..0ee7da8 100644
--- a/parquet-scrooge-deprecated/pom.xml
+++ b/parquet-scrooge-deprecated/pom.xml
@@ -21,7 +21,7 @@
     <groupId>org.apache.parquet</groupId>
     <artifactId>parquet</artifactId>
     <relativePath>../pom.xml</relativePath>
-    <version>1.12.0</version>
+    <version>1.12.0-SNAPSHOT</version>
   </parent>
 
   <modelVersion>4.0.0</modelVersion>
diff --git a/parquet-thrift/pom.xml b/parquet-thrift/pom.xml
index a9e216d..9e09c1b 100644
--- a/parquet-thrift/pom.xml
+++ b/parquet-thrift/pom.xml
@@ -21,7 +21,7 @@
     <groupId>org.apache.parquet</groupId>
     <artifactId>parquet</artifactId>
     <relativePath>../pom.xml</relativePath>
-    <version>1.12.0</version>
+    <version>1.12.0-SNAPSHOT</version>
   </parent>
 
   <modelVersion>4.0.0</modelVersion>
diff --git a/parquet-tools-deprecated/pom.xml b/parquet-tools-deprecated/pom.xml
index 3290b11..81007e9 100644
--- a/parquet-tools-deprecated/pom.xml
+++ b/parquet-tools-deprecated/pom.xml
@@ -21,7 +21,7 @@
     <groupId>org.apache.parquet</groupId>
     <artifactId>parquet</artifactId>
     <relativePath>../pom.xml</relativePath>
-    <version>1.12.0</version>
+    <version>1.12.0-SNAPSHOT</version>
   </parent>
 
   <modelVersion>4.0.0</modelVersion>
diff --git a/pom.xml b/pom.xml
index acb2fb8..12277d2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -9,7 +9,7 @@
 
   <groupId>org.apache.parquet</groupId>
   <artifactId>parquet</artifactId>
-  <version>1.12.0</version>
+  <version>1.12.0-SNAPSHOT</version>
   <packaging>pom</packaging>
 
   <name>Apache Parquet MR</name>
@@ -20,7 +20,7 @@
     <connection>scm:git:git@github.com:apache/parquet-mr.git</connection>
     <url>scm:git:git@github.com:apache/parquet-mr.git</url>
     <developerConnection>scm:git:git@github.com:apache/parquet-mr.git</developerConnection>
-    <tag>apache-parquet-1.12.0-rc3</tag>
+    <tag>HEAD</tag>
   </scm>
 
   <licenses>