diff --git a/amqp/pom.xml b/amqp/pom.xml
index e389c284..9fb8c4a2 100644
--- a/amqp/pom.xml
+++ b/amqp/pom.xml
@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>io.cloudevents</groupId>
 		<artifactId>cloudevents-parent</artifactId>
-		<version>2.0.0</version>
+		<version>2.1.0-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>cloudevents-amqp-proton</artifactId>
diff --git a/api/pom.xml b/api/pom.xml
index dd2a2084..488e938e 100644
--- a/api/pom.xml
+++ b/api/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>io.cloudevents</groupId>
         <artifactId>cloudevents-parent</artifactId>
-        <version>2.0.0</version>
+        <version>2.1.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>cloudevents-api</artifactId>
diff --git a/benchmarks/pom.xml b/benchmarks/pom.xml
index 9bb8b237..73368a3f 100644
--- a/benchmarks/pom.xml
+++ b/benchmarks/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <groupId>io.cloudevents</groupId>
         <artifactId>cloudevents-parent</artifactId>
-        <version>2.0.0</version>
+        <version>2.1.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>cloudevents-benchmarks</artifactId>
diff --git a/core/pom.xml b/core/pom.xml
index b6ca8fc7..eb100c4f 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>io.cloudevents</groupId>
         <artifactId>cloudevents-parent</artifactId>
-        <version>2.0.0</version>
+        <version>2.1.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>cloudevents-core</artifactId>
diff --git a/examples/amqp-proton/pom.xml b/examples/amqp-proton/pom.xml
index f65b5b14..3f3a1b20 100644
--- a/examples/amqp-proton/pom.xml
+++ b/examples/amqp-proton/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <artifactId>cloudevents-examples</artifactId>
     <groupId>io.cloudevents</groupId>
-    <version>2.0.0</version>
+    <version>2.1.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/examples/basic-http/pom.xml b/examples/basic-http/pom.xml
index 42a5b526..10ad0e71 100644
--- a/examples/basic-http/pom.xml
+++ b/examples/basic-http/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>cloudevents-examples</artifactId>
         <groupId>io.cloudevents</groupId>
-        <version>2.0.0</version>
+        <version>2.1.0-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/examples/kafka/pom.xml b/examples/kafka/pom.xml
index 1a839877..164a49e5 100644
--- a/examples/kafka/pom.xml
+++ b/examples/kafka/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>cloudevents-examples</artifactId>
         <groupId>io.cloudevents</groupId>
-        <version>2.0.0</version>
+        <version>2.1.0-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/examples/pom.xml b/examples/pom.xml
index bbd1eecf..efbf1e2b 100644
--- a/examples/pom.xml
+++ b/examples/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>cloudevents-parent</artifactId>
         <groupId>io.cloudevents</groupId>
-        <version>2.0.0</version>
+        <version>2.1.0-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/examples/restful-ws-quarkus/pom.xml b/examples/restful-ws-quarkus/pom.xml
index fcdffb01..9048674e 100644
--- a/examples/restful-ws-quarkus/pom.xml
+++ b/examples/restful-ws-quarkus/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>cloudevents-examples</artifactId>
         <groupId>io.cloudevents</groupId>
-        <version>2.0.0</version>
+        <version>2.1.0-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>cloudevents-restful-ws-quarkus-example</artifactId>
diff --git a/examples/restful-ws-spring-boot/pom.xml b/examples/restful-ws-spring-boot/pom.xml
index f552752d..51031a21 100644
--- a/examples/restful-ws-spring-boot/pom.xml
+++ b/examples/restful-ws-spring-boot/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>cloudevents-examples</artifactId>
         <groupId>io.cloudevents</groupId>
-        <version>2.0.0</version>
+        <version>2.1.0-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/examples/spring-reactive/pom.xml b/examples/spring-reactive/pom.xml
index 0dcc8a51..f17ee21f 100644
--- a/examples/spring-reactive/pom.xml
+++ b/examples/spring-reactive/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>cloudevents-examples</artifactId>
         <groupId>io.cloudevents</groupId>
-        <version>2.0.0</version>
+        <version>2.1.0-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/examples/vertx/pom.xml b/examples/vertx/pom.xml
index d82e29d9..9a835012 100644
--- a/examples/vertx/pom.xml
+++ b/examples/vertx/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>cloudevents-examples</artifactId>
         <groupId>io.cloudevents</groupId>
-        <version>2.0.0</version>
+        <version>2.1.0-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/formats/json-jackson/pom.xml b/formats/json-jackson/pom.xml
index edab4d0f..37607122 100644
--- a/formats/json-jackson/pom.xml
+++ b/formats/json-jackson/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>io.cloudevents</groupId>
         <artifactId>cloudevents-parent</artifactId>
-        <version>2.0.0</version>
+        <version>2.1.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/http/basic/pom.xml b/http/basic/pom.xml
index f00e8fc3..7e869a00 100644
--- a/http/basic/pom.xml
+++ b/http/basic/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <groupId>io.cloudevents</groupId>
         <artifactId>cloudevents-parent</artifactId>
-        <version>2.0.0</version>
+        <version>2.1.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/http/restful-ws-integration-tests/pom.xml b/http/restful-ws-integration-tests/pom.xml
index 66a15274..3547c8f3 100644
--- a/http/restful-ws-integration-tests/pom.xml
+++ b/http/restful-ws-integration-tests/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <artifactId>cloudevents-parent</artifactId>
         <groupId>io.cloudevents</groupId>
-        <version>2.0.0</version>
+        <version>2.1.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/http/restful-ws-integration-tests/restful-ws-common/pom.xml b/http/restful-ws-integration-tests/restful-ws-common/pom.xml
index 4ff2b3ce..aa8682eb 100644
--- a/http/restful-ws-integration-tests/restful-ws-common/pom.xml
+++ b/http/restful-ws-integration-tests/restful-ws-common/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <artifactId>cloudevents-http-restful-ws-integration-tests</artifactId>
         <groupId>io.cloudevents</groupId>
-        <version>2.0.0</version>
+        <version>2.1.0-SNAPSHOT</version>
         <relativePath>../</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/http/restful-ws-integration-tests/restful-ws-jersey/pom.xml b/http/restful-ws-integration-tests/restful-ws-jersey/pom.xml
index 254f3cd4..4f2b960d 100644
--- a/http/restful-ws-integration-tests/restful-ws-jersey/pom.xml
+++ b/http/restful-ws-integration-tests/restful-ws-jersey/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <artifactId>cloudevents-http-restful-ws-integration-tests</artifactId>
         <groupId>io.cloudevents</groupId>
-        <version>2.0.0</version>
+        <version>2.1.0-SNAPSHOT</version>
         <relativePath>../</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/http/restful-ws-integration-tests/restful-ws-resteasy/pom.xml b/http/restful-ws-integration-tests/restful-ws-resteasy/pom.xml
index 805727cf..0afd727f 100644
--- a/http/restful-ws-integration-tests/restful-ws-resteasy/pom.xml
+++ b/http/restful-ws-integration-tests/restful-ws-resteasy/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <artifactId>cloudevents-http-restful-ws-integration-tests</artifactId>
         <groupId>io.cloudevents</groupId>
-        <version>2.0.0</version>
+        <version>2.1.0-SNAPSHOT</version>
         <relativePath>../</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/http/restful-ws-integration-tests/restful-ws-spring/pom.xml b/http/restful-ws-integration-tests/restful-ws-spring/pom.xml
index c4e5c544..801bafff 100644
--- a/http/restful-ws-integration-tests/restful-ws-spring/pom.xml
+++ b/http/restful-ws-integration-tests/restful-ws-spring/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <artifactId>cloudevents-http-restful-ws-integration-tests</artifactId>
         <groupId>io.cloudevents</groupId>
-        <version>2.0.0</version>
+        <version>2.1.0-SNAPSHOT</version>
         <relativePath>../</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/http/restful-ws/pom.xml b/http/restful-ws/pom.xml
index aa2b31ea..488a6e9a 100644
--- a/http/restful-ws/pom.xml
+++ b/http/restful-ws/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <groupId>io.cloudevents</groupId>
         <artifactId>cloudevents-parent</artifactId>
-        <version>2.0.0</version>
+        <version>2.1.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/http/vertx/pom.xml b/http/vertx/pom.xml
index aa6bb3f2..c07a2d88 100644
--- a/http/vertx/pom.xml
+++ b/http/vertx/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>io.cloudevents</groupId>
         <artifactId>cloudevents-parent</artifactId>
-        <version>2.0.0</version>
+        <version>2.1.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/kafka/pom.xml b/kafka/pom.xml
index 9b85d476..17b8c5a7 100644
--- a/kafka/pom.xml
+++ b/kafka/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>io.cloudevents</groupId>
         <artifactId>cloudevents-parent</artifactId>
-        <version>2.0.0</version>
+        <version>2.1.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>cloudevents-kafka</artifactId>
diff --git a/pom.xml b/pom.xml
index e9b678ee..a8db0c08 100644
--- a/pom.xml
+++ b/pom.xml
@@ -21,7 +21,7 @@
 
     <groupId>io.cloudevents</groupId>
     <artifactId>cloudevents-parent</artifactId>
-    <version>2.0.0</version>
+    <version>2.1.0-SNAPSHOT</version>
     <packaging>pom</packaging>
 
     <name>CloudEvents</name>
diff --git a/spring/pom.xml b/spring/pom.xml
index 82602402..4bce2714 100644
--- a/spring/pom.xml
+++ b/spring/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>io.cloudevents</groupId>
         <artifactId>cloudevents-parent</artifactId>
-        <version>2.0.0</version>
+        <version>2.1.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>cloudevents-spring</artifactId>