diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index a6c329da7a..ecb92ea793 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -18,6 +18,7 @@ on:
   push:
     branches:
       - atlan-v0.6.0
+      - atlas-heap
 
 env:
   ES_JAVA_OPTS: "-Xms256m -Xmx512m"
diff --git a/janusgraph-all/pom.xml b/janusgraph-all/pom.xml
index 6649c27ac1..db5ee3c21e 100644
--- a/janusgraph-all/pom.xml
+++ b/janusgraph-all/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.janusgraph</groupId>
         <artifactId>janusgraph</artifactId>
-        <version>0.6.03</version>
+        <version>0.6.99-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>janusgraph-all</artifactId>
diff --git a/janusgraph-backend-testutils/pom.xml b/janusgraph-backend-testutils/pom.xml
index 6957f40289..c3490a6dcd 100644
--- a/janusgraph-backend-testutils/pom.xml
+++ b/janusgraph-backend-testutils/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.janusgraph</groupId>
         <artifactId>janusgraph</artifactId>
-        <version>0.6.03</version>
+        <version>0.6.99-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>janusgraph-backend-testutils</artifactId>
diff --git a/janusgraph-berkeleyje/pom.xml b/janusgraph-berkeleyje/pom.xml
index 7f5b856a8a..632185d4e5 100644
--- a/janusgraph-berkeleyje/pom.xml
+++ b/janusgraph-berkeleyje/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.janusgraph</groupId>
         <artifactId>janusgraph</artifactId>
-        <version>0.6.03</version>
+        <version>0.6.99-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>janusgraph-berkeleyje</artifactId>
diff --git a/janusgraph-bigtable/pom.xml b/janusgraph-bigtable/pom.xml
index f90a7ebaf9..b8d7811195 100644
--- a/janusgraph-bigtable/pom.xml
+++ b/janusgraph-bigtable/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.janusgraph</groupId>
         <artifactId>janusgraph</artifactId>
-        <version>0.6.03</version>
+        <version>0.6.99-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>janusgraph-bigtable</artifactId>
diff --git a/janusgraph-core/pom.xml b/janusgraph-core/pom.xml
index c6684f706d..c9391a7fec 100644
--- a/janusgraph-core/pom.xml
+++ b/janusgraph-core/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.janusgraph</groupId>
         <artifactId>janusgraph</artifactId>
-        <version>0.6.03</version>
+        <version>0.6.99-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>janusgraph-core</artifactId>
diff --git a/janusgraph-core/src/main/java/org/janusgraph/graphdb/database/StandardJanusGraph.java b/janusgraph-core/src/main/java/org/janusgraph/graphdb/database/StandardJanusGraph.java
index f054bec9b1..8478ef7e3d 100644
--- a/janusgraph-core/src/main/java/org/janusgraph/graphdb/database/StandardJanusGraph.java
+++ b/janusgraph-core/src/main/java/org/janusgraph/graphdb/database/StandardJanusGraph.java
@@ -99,6 +99,7 @@
 import org.janusgraph.graphdb.types.system.BaseRelationType;
 import org.janusgraph.graphdb.types.vertices.JanusGraphSchemaVertex;
 import org.janusgraph.graphdb.util.ExceptionFactory;
+import org.janusgraph.util.stats.MetricManager;
 import org.janusgraph.util.system.IOUtils;
 import org.janusgraph.util.system.TXUtils;
 import org.slf4j.Logger;
@@ -408,6 +409,7 @@ private BackendTransaction openBackendTransaction(StandardJanusGraphTx tx) throw
 
     public void closeTransaction(StandardJanusGraphTx tx) {
         openTransactions.remove(tx);
+        MetricManager.INSTANCE.getCounter(tx.getConfiguration().getGroupName(), "tx", "close").inc();
     }
 
     // ################### READ #########################
diff --git a/janusgraph-cql/pom.xml b/janusgraph-cql/pom.xml
index 211fbc2c26..c1b40624f9 100644
--- a/janusgraph-cql/pom.xml
+++ b/janusgraph-cql/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.janusgraph</groupId>
         <artifactId>janusgraph</artifactId>
-        <version>0.6.03</version>
+        <version>0.6.99-SNAPSHOT</version>
     </parent>
 
     <artifactId>janusgraph-cql</artifactId>
diff --git a/janusgraph-dist/pom.xml b/janusgraph-dist/pom.xml
index 67bad8b740..e0252cbc67 100644
--- a/janusgraph-dist/pom.xml
+++ b/janusgraph-dist/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.janusgraph</groupId>
         <artifactId>janusgraph</artifactId>
-        <version>0.6.03</version>
+        <version>0.6.99-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <packaging>pom</packaging>
diff --git a/janusgraph-doc/pom.xml b/janusgraph-doc/pom.xml
index e0d67a4fe3..ef7121f225 100644
--- a/janusgraph-doc/pom.xml
+++ b/janusgraph-doc/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.janusgraph</groupId>
         <artifactId>janusgraph</artifactId>
-        <version>0.6.03</version>
+        <version>0.6.99-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <packaging>pom</packaging>
diff --git a/janusgraph-driver/pom.xml b/janusgraph-driver/pom.xml
index ce7d03f83f..d4c068bcf7 100644
--- a/janusgraph-driver/pom.xml
+++ b/janusgraph-driver/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.janusgraph</groupId>
         <artifactId>janusgraph</artifactId>
-        <version>0.6.03</version>
+        <version>0.6.99-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>janusgraph-driver</artifactId>
diff --git a/janusgraph-es/pom.xml b/janusgraph-es/pom.xml
index 6e5772304b..ed64eb4d83 100644
--- a/janusgraph-es/pom.xml
+++ b/janusgraph-es/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.janusgraph</groupId>
         <artifactId>janusgraph</artifactId>
-        <version>0.6.03</version>
+        <version>0.6.99-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>janusgraph-es</artifactId>
diff --git a/janusgraph-examples/example-berkeleyje/pom.xml b/janusgraph-examples/example-berkeleyje/pom.xml
index 43bb887ba8..0eac7a9a71 100644
--- a/janusgraph-examples/example-berkeleyje/pom.xml
+++ b/janusgraph-examples/example-berkeleyje/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.janusgraph</groupId>
         <artifactId>janusgraph-examples</artifactId>
-        <version>0.6.03</version>
+        <version>0.6.99-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>example-berkeleyje</artifactId>
diff --git a/janusgraph-examples/example-common/pom.xml b/janusgraph-examples/example-common/pom.xml
index 28d27bf1e0..ca2688a4a3 100644
--- a/janusgraph-examples/example-common/pom.xml
+++ b/janusgraph-examples/example-common/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.janusgraph</groupId>
         <artifactId>janusgraph-examples</artifactId>
-        <version>0.6.03</version>
+        <version>0.6.99-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>example-common</artifactId>
diff --git a/janusgraph-examples/example-cql/pom.xml b/janusgraph-examples/example-cql/pom.xml
index 477469e77c..7166bdb90d 100644
--- a/janusgraph-examples/example-cql/pom.xml
+++ b/janusgraph-examples/example-cql/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.janusgraph</groupId>
         <artifactId>janusgraph-examples</artifactId>
-        <version>0.6.03</version>
+        <version>0.6.99-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>example-cql</artifactId>
diff --git a/janusgraph-examples/example-hbase/pom.xml b/janusgraph-examples/example-hbase/pom.xml
index e1018a59e4..339077d369 100644
--- a/janusgraph-examples/example-hbase/pom.xml
+++ b/janusgraph-examples/example-hbase/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.janusgraph</groupId>
         <artifactId>janusgraph-examples</artifactId>
-        <version>0.6.03</version>
+        <version>0.6.99-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>example-hbase</artifactId>
diff --git a/janusgraph-examples/example-remotegraph/pom.xml b/janusgraph-examples/example-remotegraph/pom.xml
index 8e6916f938..8b9e7b8d2b 100644
--- a/janusgraph-examples/example-remotegraph/pom.xml
+++ b/janusgraph-examples/example-remotegraph/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.janusgraph</groupId>
         <artifactId>janusgraph-examples</artifactId>
-        <version>0.6.03</version>
+        <version>0.6.99-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>example-remotegraph</artifactId>
diff --git a/janusgraph-examples/example-tinkergraph/pom.xml b/janusgraph-examples/example-tinkergraph/pom.xml
index f036029b33..9e15219242 100644
--- a/janusgraph-examples/example-tinkergraph/pom.xml
+++ b/janusgraph-examples/example-tinkergraph/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.janusgraph</groupId>
         <artifactId>janusgraph-examples</artifactId>
-        <version>0.6.03</version>
+        <version>0.6.99-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>example-tinkergraph</artifactId>
diff --git a/janusgraph-examples/pom.xml b/janusgraph-examples/pom.xml
index 2eae8f5947..24b5056417 100644
--- a/janusgraph-examples/pom.xml
+++ b/janusgraph-examples/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.janusgraph</groupId>
         <artifactId>janusgraph</artifactId>
-        <version>0.6.03</version>
+        <version>0.6.99-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>janusgraph-examples</artifactId>
diff --git a/janusgraph-grpc/pom.xml b/janusgraph-grpc/pom.xml
index dfc5cebb00..84ab3f5bb8 100644
--- a/janusgraph-grpc/pom.xml
+++ b/janusgraph-grpc/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.janusgraph</groupId>
         <artifactId>janusgraph</artifactId>
-        <version>0.6.03</version>
+        <version>0.6.99-SNAPSHOT</version>
     </parent>
     <artifactId>janusgraph-grpc</artifactId>
     <name>JanusGraph-gRPC: gRPC Components for JanusGraph</name>
diff --git a/janusgraph-hadoop/pom.xml b/janusgraph-hadoop/pom.xml
index 3d525bd4b6..169d66b012 100644
--- a/janusgraph-hadoop/pom.xml
+++ b/janusgraph-hadoop/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.janusgraph</groupId>
         <artifactId>janusgraph</artifactId>
-        <version>0.6.03</version>
+        <version>0.6.99-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>janusgraph-hadoop</artifactId>
diff --git a/janusgraph-hbase/pom.xml b/janusgraph-hbase/pom.xml
index 6a9a0a9c98..ced00491f1 100644
--- a/janusgraph-hbase/pom.xml
+++ b/janusgraph-hbase/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.janusgraph</groupId>
         <artifactId>janusgraph</artifactId>
-        <version>0.6.03</version>
+        <version>0.6.99-SNAPSHOT</version>
     </parent>
     <artifactId>janusgraph-hbase</artifactId>
     <name>JanusGraph-HBase: Distributed Graph Database</name>
diff --git a/janusgraph-inmemory/pom.xml b/janusgraph-inmemory/pom.xml
index 560a7fda5e..85b1d172cc 100644
--- a/janusgraph-inmemory/pom.xml
+++ b/janusgraph-inmemory/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.janusgraph</groupId>
         <artifactId>janusgraph</artifactId>
-        <version>0.6.03</version>
+        <version>0.6.99-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>janusgraph-inmemory</artifactId>
diff --git a/janusgraph-lucene/pom.xml b/janusgraph-lucene/pom.xml
index 40c9f385a8..99e2bc9eba 100644
--- a/janusgraph-lucene/pom.xml
+++ b/janusgraph-lucene/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.janusgraph</groupId>
         <artifactId>janusgraph</artifactId>
-        <version>0.6.03</version>
+        <version>0.6.99-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>janusgraph-lucene</artifactId>
diff --git a/janusgraph-server/pom.xml b/janusgraph-server/pom.xml
index 06f122ed05..689a6884ba 100644
--- a/janusgraph-server/pom.xml
+++ b/janusgraph-server/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.janusgraph</groupId>
         <artifactId>janusgraph</artifactId>
-        <version>0.6.03</version>
+        <version>0.6.99-SNAPSHOT</version>
     </parent>
     <artifactId>janusgraph-server</artifactId>
     <name>JanusGraph-Server: Server Components for JanusGraph</name>
diff --git a/janusgraph-solr/pom.xml b/janusgraph-solr/pom.xml
index a4b5f89b8a..3114e6896c 100644
--- a/janusgraph-solr/pom.xml
+++ b/janusgraph-solr/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.janusgraph</groupId>
         <artifactId>janusgraph</artifactId>
-        <version>0.6.03</version>
+        <version>0.6.99-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>janusgraph-solr</artifactId>
diff --git a/janusgraph-test/pom.xml b/janusgraph-test/pom.xml
index 09e853b801..34fac88da3 100644
--- a/janusgraph-test/pom.xml
+++ b/janusgraph-test/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.janusgraph</groupId>
         <artifactId>janusgraph</artifactId>
-        <version>0.6.03</version>
+        <version>0.6.99-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>janusgraph-test</artifactId>
diff --git a/pom.xml b/pom.xml
index e3ef6d53a9..924fb102c4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.janusgraph</groupId>
     <artifactId>janusgraph</artifactId>
-    <version>0.6.03</version>
+    <version>0.6.99-SNAPSHOT</version>
     <packaging>pom</packaging>
     <prerequisites>
         <maven>3.0.0</maven>