diff --git a/README.adoc b/README.adoc
index ab8207b34..4b30082a6 100644
--- a/README.adoc
+++ b/README.adoc
@@ -322,7 +322,6 @@ Example of setting baggage on a span:
 ----
 Span initialSpan = this.tracer.createSpan("span");
 initialSpan.setBaggageItem("foo", "bar");
-initialSpan.setBaggageItem("UPPER_CASE", "someValue");
 ----
 
 ===== Baggage vs. Span Tags
diff --git a/benchmarks/pom.xml b/benchmarks/pom.xml
index 5388efd13..fc28f2343 100644
--- a/benchmarks/pom.xml
+++ b/benchmarks/pom.xml
@@ -17,7 +17,7 @@
 	<name>Benchmarks</name>
 	<description>Benchmarks (JMH)</description>
 	<groupId>org.springframework.cloud</groupId>
-	<version>1.2.4.RELEASE</version>
+	<version>1.2.4.BUILD-SNAPSHOT</version>
 	<artifactId>benchmarks</artifactId>
 
 	<properties>
diff --git a/docs/pom.xml b/docs/pom.xml
index 069c71d23..9bd909589 100644
--- a/docs/pom.xml
+++ b/docs/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth</artifactId>
-		<version>1.2.4.RELEASE</version>
+		<version>1.2.4.BUILD-SNAPSHOT</version>
 	</parent>
 	<artifactId>spring-cloud-sleuth-docs</artifactId>
 	<packaging>pom</packaging>
diff --git a/pom.xml b/pom.xml
index 810c4b9b1..0ada8f039 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
 	<modelVersion>4.0.0</modelVersion>
 
 	<artifactId>spring-cloud-sleuth</artifactId>
-	<version>1.2.4.RELEASE</version>
+	<version>1.2.4.BUILD-SNAPSHOT</version>
 	<packaging>pom</packaging>
 	<name>Spring Cloud Sleuth</name>
 	<description>Spring Cloud Sleuth</description>
@@ -13,7 +13,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-build</artifactId>
-		<version>1.3.3.RELEASE</version>
+		<version>1.3.3.BUILD-SNAPSHOT</version>
 		<relativePath/>
 		<!-- lookup parent from repository -->
 	</parent>
@@ -234,10 +234,10 @@
 		<maven.compiler.testSource>1.8</maven.compiler.testSource>
 		<surefire.plugin.version>2.19.1</surefire.plugin.version>
 		<checkstyle.version>2.17</checkstyle.version>
-		<spring-cloud-build.version>1.3.3.RELEASE</spring-cloud-build.version>
-		<spring-cloud-commons.version>1.2.3.RELEASE</spring-cloud-commons.version>
+		<spring-cloud-build.version>1.3.3.BUILD-SNAPSHOT</spring-cloud-build.version>
+		<spring-cloud-commons.version>1.2.4.BUILD-SNAPSHOT</spring-cloud-commons.version>
 		<spring-cloud-stream.version>Chelsea.SR2</spring-cloud-stream.version>
-		<spring-cloud-netflix.version>1.3.4.RELEASE</spring-cloud-netflix.version>
+		<spring-cloud-netflix.version>1.3.3.BUILD-SNAPSHOT</spring-cloud-netflix.version>
 	</properties>
 
 	<profiles>
diff --git a/spring-cloud-sleuth-core/pom.xml b/spring-cloud-sleuth-core/pom.xml
index 8b5f80374..f9c816a7c 100644
--- a/spring-cloud-sleuth-core/pom.xml
+++ b/spring-cloud-sleuth-core/pom.xml
@@ -11,7 +11,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth</artifactId>
-		<version>1.2.4.RELEASE</version>
+		<version>1.2.4.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-sleuth-dependencies/pom.xml b/spring-cloud-sleuth-dependencies/pom.xml
index 03b51c523..b03769c8a 100644
--- a/spring-cloud-sleuth-dependencies/pom.xml
+++ b/spring-cloud-sleuth-dependencies/pom.xml
@@ -5,11 +5,11 @@
 	<parent>
 		<artifactId>spring-cloud-dependencies-parent</artifactId>
 		<groupId>org.springframework.cloud</groupId>
-		<version>1.3.3.RELEASE</version>
+		<version>1.3.3.BUILD-SNAPSHOT</version>
         <relativePath/>
 	</parent>
 	<artifactId>spring-cloud-sleuth-dependencies</artifactId>
-	<version>1.2.4.RELEASE</version>
+	<version>1.2.4.BUILD-SNAPSHOT</version>
 	<packaging>pom</packaging>
 	<name>spring-cloud-sleuth-dependencies</name>
 	<description>Spring Cloud Sleuth Dependencies</description>
diff --git a/spring-cloud-sleuth-samples/pom.xml b/spring-cloud-sleuth-samples/pom.xml
index f60121001..11fcb1833 100644
--- a/spring-cloud-sleuth-samples/pom.xml
+++ b/spring-cloud-sleuth-samples/pom.xml
@@ -12,7 +12,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth</artifactId>
-		<version>1.2.4.RELEASE</version>
+		<version>1.2.4.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-feign/pom.xml b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-feign/pom.xml
index 0ad1d6cb7..802c9ba10 100644
--- a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-feign/pom.xml
+++ b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-feign/pom.xml
@@ -20,7 +20,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-samples</artifactId>
-		<version>1.2.4.RELEASE</version>
+		<version>1.2.4.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-messaging/pom.xml b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-messaging/pom.xml
index cacdc765f..7a2fcd07c 100644
--- a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-messaging/pom.xml
+++ b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-messaging/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-samples</artifactId>
-		<version>1.2.4.RELEASE</version>
+		<version>1.2.4.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-ribbon/pom.xml b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-ribbon/pom.xml
index f570eedb8..5932739b6 100644
--- a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-ribbon/pom.xml
+++ b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-ribbon/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-samples</artifactId>
-		<version>1.2.4.RELEASE</version>
+		<version>1.2.4.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-stream/pom.xml b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-stream/pom.xml
index cb093593b..10aa2746f 100644
--- a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-stream/pom.xml
+++ b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-stream/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-samples</artifactId>
-		<version>1.2.4.RELEASE</version>
+		<version>1.2.4.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-test-core/pom.xml b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-test-core/pom.xml
index f94595455..430c3e74e 100644
--- a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-test-core/pom.xml
+++ b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-test-core/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-samples</artifactId>
-		<version>1.2.4.RELEASE</version>
+		<version>1.2.4.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-websocket/pom.xml b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-websocket/pom.xml
index ef199a03c..22f9f48d9 100644
--- a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-websocket/pom.xml
+++ b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-websocket/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-samples</artifactId>
-		<version>1.2.4.RELEASE</version>
+		<version>1.2.4.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-zipkin-stream/pom.xml b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-zipkin-stream/pom.xml
index 27a560b71..2c8eddcdb 100644
--- a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-zipkin-stream/pom.xml
+++ b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-zipkin-stream/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-samples</artifactId>
-		<version>1.2.4.RELEASE</version>
+		<version>1.2.4.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-zipkin/pom.xml b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-zipkin/pom.xml
index 9a51982c5..454adb99c 100644
--- a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-zipkin/pom.xml
+++ b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-zipkin/pom.xml
@@ -27,7 +27,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-samples</artifactId>
-		<version>1.2.4.RELEASE</version>
+		<version>1.2.4.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample/pom.xml b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample/pom.xml
index ae5966340..13b8f46f9 100644
--- a/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample/pom.xml
+++ b/spring-cloud-sleuth-samples/spring-cloud-sleuth-sample/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth-samples</artifactId>
-		<version>1.2.4.RELEASE</version>
+		<version>1.2.4.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-sleuth-stream/pom.xml b/spring-cloud-sleuth-stream/pom.xml
index 7fb1e6f65..20bd804bb 100644
--- a/spring-cloud-sleuth-stream/pom.xml
+++ b/spring-cloud-sleuth-stream/pom.xml
@@ -12,7 +12,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth</artifactId>
-		<version>1.2.4.RELEASE</version>
+		<version>1.2.4.BUILD-SNAPSHOT</version>
 	</parent>
 
 	<dependencies>
diff --git a/spring-cloud-sleuth-zipkin-stream/pom.xml b/spring-cloud-sleuth-zipkin-stream/pom.xml
index 34a1e15d5..1e3dd06a2 100644
--- a/spring-cloud-sleuth-zipkin-stream/pom.xml
+++ b/spring-cloud-sleuth-zipkin-stream/pom.xml
@@ -12,7 +12,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth</artifactId>
-		<version>1.2.4.RELEASE</version>
+		<version>1.2.4.BUILD-SNAPSHOT</version>
 	</parent>
 
 	<properties>
diff --git a/spring-cloud-sleuth-zipkin/pom.xml b/spring-cloud-sleuth-zipkin/pom.xml
index e2a4a85cd..b3131286b 100644
--- a/spring-cloud-sleuth-zipkin/pom.xml
+++ b/spring-cloud-sleuth-zipkin/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth</artifactId>
-		<version>1.2.4.RELEASE</version>
+		<version>1.2.4.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-starter-sleuth/pom.xml b/spring-cloud-starter-sleuth/pom.xml
index ada4eb260..8ebaecfba 100644
--- a/spring-cloud-starter-sleuth/pom.xml
+++ b/spring-cloud-starter-sleuth/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth</artifactId>
-		<version>1.2.4.RELEASE</version>
+		<version>1.2.4.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 	<artifactId>spring-cloud-starter-sleuth</artifactId>
diff --git a/spring-cloud-starter-zipkin/pom.xml b/spring-cloud-starter-zipkin/pom.xml
index b5257af46..6dc4eaa83 100644
--- a/spring-cloud-starter-zipkin/pom.xml
+++ b/spring-cloud-starter-zipkin/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-sleuth</artifactId>
-		<version>1.2.4.RELEASE</version>
+		<version>1.2.4.BUILD-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 	<artifactId>spring-cloud-starter-zipkin</artifactId>