diff --git a/benchmarks/pom.xml b/benchmarks/pom.xml
index 80f5c594..f9d2f186 100644
--- a/benchmarks/pom.xml
+++ b/benchmarks/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>io.prometheus</groupId>
         <artifactId>client_java</artifactId>
-        <version>1.3.0</version>
+        <version>1.4.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>benchmarks</artifactId>
diff --git a/examples/example-exemplars-tail-sampling/example-greeting-service/pom.xml b/examples/example-exemplars-tail-sampling/example-greeting-service/pom.xml
index 181384a0..72ebcbed 100644
--- a/examples/example-exemplars-tail-sampling/example-greeting-service/pom.xml
+++ b/examples/example-exemplars-tail-sampling/example-greeting-service/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>io.prometheus</groupId>
         <artifactId>example-exemplars-tail-sampling</artifactId>
-        <version>1.3.0</version>
+        <version>1.4.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>example-greeting-service</artifactId>
diff --git a/examples/example-exemplars-tail-sampling/example-hello-world-app/pom.xml b/examples/example-exemplars-tail-sampling/example-hello-world-app/pom.xml
index c393bfcd..ae0b3679 100644
--- a/examples/example-exemplars-tail-sampling/example-hello-world-app/pom.xml
+++ b/examples/example-exemplars-tail-sampling/example-hello-world-app/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>io.prometheus</groupId>
         <artifactId>example-exemplars-tail-sampling</artifactId>
-        <version>1.3.0</version>
+        <version>1.4.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>example-hello-world-app</artifactId>
diff --git a/examples/example-exemplars-tail-sampling/pom.xml b/examples/example-exemplars-tail-sampling/pom.xml
index cdf55bd6..ed3cb087 100644
--- a/examples/example-exemplars-tail-sampling/pom.xml
+++ b/examples/example-exemplars-tail-sampling/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>io.prometheus</groupId>
         <artifactId>examples</artifactId>
-        <version>1.3.0</version>
+        <version>1.4.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>example-exemplars-tail-sampling</artifactId>
diff --git a/examples/example-exporter-httpserver/pom.xml b/examples/example-exporter-httpserver/pom.xml
index 6b6da8ea..189e74c6 100644
--- a/examples/example-exporter-httpserver/pom.xml
+++ b/examples/example-exporter-httpserver/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>io.prometheus</groupId>
         <artifactId>examples</artifactId>
-        <version>1.3.0</version>
+        <version>1.4.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>example-exporter-httpserver</artifactId>
diff --git a/examples/example-exporter-multi-target/pom.xml b/examples/example-exporter-multi-target/pom.xml
index 60a6ceee..0f1b03cf 100644
--- a/examples/example-exporter-multi-target/pom.xml
+++ b/examples/example-exporter-multi-target/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>io.prometheus</groupId>
         <artifactId>examples</artifactId>
-        <version>1.3.0</version>
+        <version>1.4.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>example-exporter-multi-target</artifactId>
diff --git a/examples/example-exporter-opentelemetry/pom.xml b/examples/example-exporter-opentelemetry/pom.xml
index e775c80c..29c9ab15 100644
--- a/examples/example-exporter-opentelemetry/pom.xml
+++ b/examples/example-exporter-opentelemetry/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>io.prometheus</groupId>
         <artifactId>examples</artifactId>
-        <version>1.3.0</version>
+        <version>1.4.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>example-exporter-opentelemetry</artifactId>
diff --git a/examples/example-exporter-servlet-tomcat/pom.xml b/examples/example-exporter-servlet-tomcat/pom.xml
index 3f83002a..1f9df84c 100644
--- a/examples/example-exporter-servlet-tomcat/pom.xml
+++ b/examples/example-exporter-servlet-tomcat/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>io.prometheus</groupId>
         <artifactId>examples</artifactId>
-        <version>1.3.0</version>
+        <version>1.4.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>example-exporter-servlet-tomcat</artifactId>
diff --git a/examples/example-native-histogram/pom.xml b/examples/example-native-histogram/pom.xml
index 494c777c..336a4d05 100644
--- a/examples/example-native-histogram/pom.xml
+++ b/examples/example-native-histogram/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>io.prometheus</groupId>
         <artifactId>examples</artifactId>
-        <version>1.3.0</version>
+        <version>1.4.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>example-native-histogram</artifactId>
diff --git a/examples/example-prometheus-properties/pom.xml b/examples/example-prometheus-properties/pom.xml
index f6be3b75..62b44cfe 100644
--- a/examples/example-prometheus-properties/pom.xml
+++ b/examples/example-prometheus-properties/pom.xml
@@ -5,7 +5,7 @@
     <parent>
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-        <version>1.3.0</version>
+        <version>1.4.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>example-prometheus-properties</artifactId>
diff --git a/examples/example-simpleclient-bridge/pom.xml b/examples/example-simpleclient-bridge/pom.xml
index a256ac54..d874aacb 100644
--- a/examples/example-simpleclient-bridge/pom.xml
+++ b/examples/example-simpleclient-bridge/pom.xml
@@ -5,7 +5,7 @@
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     </parent>
 
     <artifactId>example-simpleclient-bridge</artifactId>
diff --git a/examples/pom.xml b/examples/pom.xml
index 3b043e6f..a1eb1722 100644
--- a/examples/pom.xml
+++ b/examples/pom.xml
@@ -5,7 +5,7 @@
     <parent>
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         <artifactId>client_java</artifactId>
-        <version>1.3.0</version>
+        <version>1.4.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>examples</artifactId>
diff --git a/integration-tests/it-common/pom.xml b/integration-tests/it-common/pom.xml
index bd0bf5e0..195a10ca 100644
--- a/integration-tests/it-common/pom.xml
+++ b/integration-tests/it-common/pom.xml
@@ -5,7 +5,7 @@
     <parent>
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         <artifactId>integration-tests</artifactId>
-        <version>1.3.0</version>
+        <version>1.4.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>it-common</artifactId>
diff --git a/integration-tests/it-exporter/it-exporter-httpserver-sample/pom.xml b/integration-tests/it-exporter/it-exporter-httpserver-sample/pom.xml
index 2050a3bf..2743b393 100644
--- a/integration-tests/it-exporter/it-exporter-httpserver-sample/pom.xml
+++ b/integration-tests/it-exporter/it-exporter-httpserver-sample/pom.xml
@@ -5,7 +5,7 @@
     <parent>
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         <artifactId>it-exporter</artifactId>
-        <version>1.3.0</version>
+        <version>1.4.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>it-exporter-httpserver-sample</artifactId>
diff --git a/integration-tests/it-exporter/it-exporter-servlet-jetty-sample/pom.xml b/integration-tests/it-exporter/it-exporter-servlet-jetty-sample/pom.xml
index 7be578a1..622f9325 100644
--- a/integration-tests/it-exporter/it-exporter-servlet-jetty-sample/pom.xml
+++ b/integration-tests/it-exporter/it-exporter-servlet-jetty-sample/pom.xml
@@ -5,7 +5,7 @@
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         <artifactId>it-exporter</artifactId>
-        <version>1.3.0</version>
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     </parent>
 
     <artifactId>it-exporter-servlet-jetty-sample</artifactId>
diff --git a/integration-tests/it-exporter/it-exporter-servlet-tomcat-sample/pom.xml b/integration-tests/it-exporter/it-exporter-servlet-tomcat-sample/pom.xml
index 0599f2e5..bb78e054 100644
--- a/integration-tests/it-exporter/it-exporter-servlet-tomcat-sample/pom.xml
+++ b/integration-tests/it-exporter/it-exporter-servlet-tomcat-sample/pom.xml
@@ -5,7 +5,7 @@
     <parent>
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-        <version>1.3.0</version>
+        <version>1.4.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>it-exporter-servlet-tomcat-sample</artifactId>
diff --git a/integration-tests/it-exporter/it-exporter-test/pom.xml b/integration-tests/it-exporter/it-exporter-test/pom.xml
index 842c793d..899a17f1 100644
--- a/integration-tests/it-exporter/it-exporter-test/pom.xml
+++ b/integration-tests/it-exporter/it-exporter-test/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>io.prometheus</groupId>
         <artifactId>it-exporter</artifactId>
-        <version>1.3.0</version>
+        <version>1.4.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>it-exporter-test</artifactId>
diff --git a/integration-tests/it-exporter/pom.xml b/integration-tests/it-exporter/pom.xml
index d8636141..694cee95 100644
--- a/integration-tests/it-exporter/pom.xml
+++ b/integration-tests/it-exporter/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>io.prometheus</groupId>
         <artifactId>integration-tests</artifactId>
-        <version>1.3.0</version>
+        <version>1.4.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>it-exporter</artifactId>
@@ -29,7 +29,7 @@
         <connection>scm:git:git@github.com:prometheus/client_java.git</connection>
         <developerConnection>scm:git:git@github.com:prometheus/client_java.git</developerConnection>
         <url>git@github.com:prometheus/client_java.git</url>
-        <tag>v1.3.0</tag>
+        <tag>HEAD</tag>
     </scm>
 
     <developers>
diff --git a/integration-tests/it-pushgateway/pom.xml b/integration-tests/it-pushgateway/pom.xml
index 8d53a7ca..25ce45b1 100644
--- a/integration-tests/it-pushgateway/pom.xml
+++ b/integration-tests/it-pushgateway/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>io.prometheus</groupId>
         <artifactId>integration-tests</artifactId>
-        <version>1.3.0</version>
+        <version>1.4.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>it-pushgateway</artifactId>
diff --git a/integration-tests/pom.xml b/integration-tests/pom.xml
index e49ef85f..2ed77b95 100644
--- a/integration-tests/pom.xml
+++ b/integration-tests/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>io.prometheus</groupId>
         <artifactId>client_java</artifactId>
-        <version>1.3.0</version>
+        <version>1.4.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>integration-tests</artifactId>
diff --git a/pom.xml b/pom.xml
index 8fdda21a..e678cf66 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
 
     <groupId>io.prometheus</groupId>
     <artifactId>client_java</artifactId>
-    <version>1.3.0</version>
+    <version>1.4.0-SNAPSHOT</version>
 
     <name>Prometheus Metrics Library</name>
     <url>http://github.com/prometheus/client_java</url>
@@ -30,7 +30,7 @@
         <connection>scm:git:git@github.com:prometheus/client_java.git</connection>
         <developerConnection>scm:git:git@github.com:prometheus/client_java.git</developerConnection>
         <url>git@github.com:prometheus/client_java.git</url>
-        <tag>v1.3.0</tag>
+        <tag>HEAD</tag>
     </scm>
 
     <developers>
diff --git a/prometheus-metrics-bom/pom.xml b/prometheus-metrics-bom/pom.xml
index 4af438ba..69a9e89f 100644
--- a/prometheus-metrics-bom/pom.xml
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@@ -5,7 +5,7 @@
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     <artifactId>prometheus-metrics-bom</artifactId>
diff --git a/prometheus-metrics-config/pom.xml b/prometheus-metrics-config/pom.xml
index 7463d4ee..2d1e95c8 100644
--- a/prometheus-metrics-config/pom.xml
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diff --git a/prometheus-metrics-core/pom.xml b/prometheus-metrics-core/pom.xml
index 94fe8990..fd3c9a04 100644
--- a/prometheus-metrics-core/pom.xml
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diff --git a/prometheus-metrics-exporter-common/pom.xml b/prometheus-metrics-exporter-common/pom.xml
index 4dd28da7..f65aabf6 100644
--- a/prometheus-metrics-exporter-common/pom.xml
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diff --git a/prometheus-metrics-exporter-httpserver/pom.xml b/prometheus-metrics-exporter-httpserver/pom.xml
index c4861dfa..45fbfe18 100644
--- a/prometheus-metrics-exporter-httpserver/pom.xml
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diff --git a/prometheus-metrics-exporter-opentelemetry/pom.xml b/prometheus-metrics-exporter-opentelemetry/pom.xml
index 1a107390..27c8cedb 100644
--- a/prometheus-metrics-exporter-opentelemetry/pom.xml
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diff --git a/prometheus-metrics-exporter-pushgateway/pom.xml b/prometheus-metrics-exporter-pushgateway/pom.xml
index fe5da088..8b6e2252 100644
--- a/prometheus-metrics-exporter-pushgateway/pom.xml
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@@ -5,7 +5,7 @@
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     <artifactId>prometheus-metrics-exporter-pushgateway</artifactId>
diff --git a/prometheus-metrics-exporter-servlet-jakarta/pom.xml b/prometheus-metrics-exporter-servlet-jakarta/pom.xml
index 4f802d3e..18559c8e 100644
--- a/prometheus-metrics-exporter-servlet-jakarta/pom.xml
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diff --git a/prometheus-metrics-exporter-servlet-javax/pom.xml b/prometheus-metrics-exporter-servlet-javax/pom.xml
index 65e8b8bb..b930dd9c 100644
--- a/prometheus-metrics-exporter-servlet-javax/pom.xml
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     <artifactId>prometheus-metrics-exporter-servlet-javax</artifactId>
diff --git a/prometheus-metrics-exposition-formats/pom.xml b/prometheus-metrics-exposition-formats/pom.xml
index 6e574f04..027faa19 100644
--- a/prometheus-metrics-exposition-formats/pom.xml
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@@ -5,7 +5,7 @@
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     <artifactId>prometheus-metrics-exposition-formats</artifactId>
diff --git a/prometheus-metrics-instrumentation-dropwizard5/pom.xml b/prometheus-metrics-instrumentation-dropwizard5/pom.xml
index d87da6b6..085e6de7 100644
--- a/prometheus-metrics-instrumentation-dropwizard5/pom.xml
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     <artifactId>prometheus-metrics-instrumentation-dropwizard5</artifactId>
diff --git a/prometheus-metrics-instrumentation-jvm/pom.xml b/prometheus-metrics-instrumentation-jvm/pom.xml
index 47f3ba70..c847500d 100644
--- a/prometheus-metrics-instrumentation-jvm/pom.xml
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@@ -5,7 +5,7 @@
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     <artifactId>prometheus-metrics-instrumentation-jvm</artifactId>
diff --git a/prometheus-metrics-model/pom.xml b/prometheus-metrics-model/pom.xml
index 24f3c23e..8d3051df 100644
--- a/prometheus-metrics-model/pom.xml
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     <artifactId>prometheus-metrics-model</artifactId>
diff --git a/prometheus-metrics-shaded-dependencies/pom.xml b/prometheus-metrics-shaded-dependencies/pom.xml
index 70d6f075..49b015e4 100644
--- a/prometheus-metrics-shaded-dependencies/pom.xml
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     <artifactId>prometheus-metrics-shaded-dependencies</artifactId>
diff --git a/prometheus-metrics-shaded-dependencies/prometheus-metrics-shaded-opentelemetry/pom.xml b/prometheus-metrics-shaded-dependencies/prometheus-metrics-shaded-opentelemetry/pom.xml
index 878872ca..41573529 100644
--- a/prometheus-metrics-shaded-dependencies/prometheus-metrics-shaded-opentelemetry/pom.xml
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@@ -5,7 +5,7 @@
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     </parent>
 
     <artifactId>prometheus-metrics-shaded-opentelemetry</artifactId>
diff --git a/prometheus-metrics-shaded-dependencies/prometheus-metrics-shaded-protobuf/pom.xml b/prometheus-metrics-shaded-dependencies/prometheus-metrics-shaded-protobuf/pom.xml
index 5a1b9001..9f9d46f1 100644
--- a/prometheus-metrics-shaded-dependencies/prometheus-metrics-shaded-protobuf/pom.xml
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@@ -5,7 +5,7 @@
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     <artifactId>prometheus-metrics-shaded-protobuf</artifactId>
diff --git a/prometheus-metrics-simpleclient-bridge/pom.xml b/prometheus-metrics-simpleclient-bridge/pom.xml
index defa8580..ba88815f 100644
--- a/prometheus-metrics-simpleclient-bridge/pom.xml
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@@ -5,7 +5,7 @@
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     <artifactId>prometheus-metrics-simpleclient-bridge</artifactId>
diff --git a/prometheus-metrics-tracer/pom.xml b/prometheus-metrics-tracer/pom.xml
index c67dd26b..2d10bca4 100644
--- a/prometheus-metrics-tracer/pom.xml
+++ b/prometheus-metrics-tracer/pom.xml
@@ -5,7 +5,7 @@
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   </parent>
 
   <artifactId>prometheus-metrics-tracer</artifactId>
diff --git a/prometheus-metrics-tracer/prometheus-metrics-tracer-common/pom.xml b/prometheus-metrics-tracer/prometheus-metrics-tracer-common/pom.xml
index 4791ca99..dee1f5a4 100644
--- a/prometheus-metrics-tracer/prometheus-metrics-tracer-common/pom.xml
+++ b/prometheus-metrics-tracer/prometheus-metrics-tracer-common/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>io.prometheus</groupId>
     <artifactId>prometheus-metrics-tracer</artifactId>
-    <version>1.3.0</version>
+    <version>1.4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>prometheus-metrics-tracer-common</artifactId>
diff --git a/prometheus-metrics-tracer/prometheus-metrics-tracer-initializer/pom.xml b/prometheus-metrics-tracer/prometheus-metrics-tracer-initializer/pom.xml
index 9a3bd3c6..4898db46 100644
--- a/prometheus-metrics-tracer/prometheus-metrics-tracer-initializer/pom.xml
+++ b/prometheus-metrics-tracer/prometheus-metrics-tracer-initializer/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>io.prometheus</groupId>
     <artifactId>prometheus-metrics-tracer</artifactId>
-    <version>1.3.0</version>
+    <version>1.4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>prometheus-metrics-tracer-initializer</artifactId>
diff --git a/prometheus-metrics-tracer/prometheus-metrics-tracer-otel-agent/pom.xml b/prometheus-metrics-tracer/prometheus-metrics-tracer-otel-agent/pom.xml
index 4d6190b3..66a15e39 100644
--- a/prometheus-metrics-tracer/prometheus-metrics-tracer-otel-agent/pom.xml
+++ b/prometheus-metrics-tracer/prometheus-metrics-tracer-otel-agent/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>io.prometheus</groupId>
     <artifactId>prometheus-metrics-tracer</artifactId>
-    <version>1.3.0</version>
+    <version>1.4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>prometheus-metrics-tracer-otel-agent</artifactId>
diff --git a/prometheus-metrics-tracer/prometheus-metrics-tracer-otel/pom.xml b/prometheus-metrics-tracer/prometheus-metrics-tracer-otel/pom.xml
index c7f0d968..2c91242e 100644
--- a/prometheus-metrics-tracer/prometheus-metrics-tracer-otel/pom.xml
+++ b/prometheus-metrics-tracer/prometheus-metrics-tracer-otel/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>io.prometheus</groupId>
     <artifactId>prometheus-metrics-tracer</artifactId>
-    <version>1.3.0</version>
+    <version>1.4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>prometheus-metrics-tracer-otel</artifactId>