diff --git a/helloworld/pom.xml b/helloworld/pom.xml
index b775572..9b98a0a 100644
--- a/helloworld/pom.xml
+++ b/helloworld/pom.xml
@@ -5,7 +5,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>org.springframework.samples.spring</groupId>
 	<artifactId>spring-rabbit-helloworld</artifactId>
-	<version>3.0.0-M3</version>
+	<version>3.0.0-M4</version>
 	<packaging>jar</packaging>
 	<name>Spring AMQP Hello World</name>
 	<url>https://www.spring.io</url>
@@ -16,7 +16,7 @@
 	</description>
 	<properties>
 		<maven.test.failure.ignore>true</maven.test.failure.ignore>
-		<spring.amqp.version>3.0.0-M3</spring.amqp.version>
+		<spring.amqp.version>3.0.0-M4</spring.amqp.version>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<java.version>1.8</java.version>
 		<maven.test.failure.ignore>false</maven.test.failure.ignore>
diff --git a/log4j2/pom.xml b/log4j2/pom.xml
index 9cdefbf..2a01837 100644
--- a/log4j2/pom.xml
+++ b/log4j2/pom.xml
@@ -5,7 +5,7 @@
 
 	<groupId>org.springframework.amqp.samples</groupId>
 	<artifactId>log4j2</artifactId>
-	<version>3.0.0-M3</version>
+	<version>3.0.0-M4</version>
 	<packaging>jar</packaging>
 
 	<name>log4j2</name>
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>3.0.0-M2</version>
+		<version>3.0.0-M4</version>
 		<relativePath /> <!-- lookup parent from repository -->
 	</parent>
 
@@ -22,7 +22,7 @@
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<java.version>1.8</java.version>
 		<spring.framework.version>5.3.13</spring.framework.version>
-		<spring.amqp.version>3.0.0-M3</spring.amqp.version>
+		<spring.amqp.version>3.0.0-M4</spring.amqp.version>
 	</properties>
 
 	<dependencies>
diff --git a/pom.xml b/pom.xml
index 1d75353..b0a8138 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
 	<groupId>org.springframework.amqp</groupId>
 	<artifactId>spring-amqp-samples</artifactId>
 	<name>Spring AMQP Samples</name>
-	<version>3.0.0-M3</version>
+	<version>3.0.0-M4</version>
 	<packaging>pom</packaging>
 	<modules>
 		<module>helloworld</module>
diff --git a/spring-rabbit-confirms-returns/pom.xml b/spring-rabbit-confirms-returns/pom.xml
index 67462a4..5708db5 100644
--- a/spring-rabbit-confirms-returns/pom.xml
+++ b/spring-rabbit-confirms-returns/pom.xml
@@ -5,7 +5,7 @@
 
 	<groupId>org.springframework.amqp.samples</groupId>
 	<artifactId>spring-rabbit-confirms-returns</artifactId>
-	<version>3.0.0-M3</version>
+	<version>3.0.0-M4</version>
 	<packaging>jar</packaging>
 
 	<name>spring-rabbit-confirms-returns</name>
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>3.0.0-M2</version>
+		<version>3.0.0-M4</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 
@@ -22,7 +22,7 @@
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 		<java.version>1.8</java.version>
-		<spring.amqp.version>3.0.0-M3</spring.amqp.version>
+		<spring.amqp.version>3.0.0-M4</spring.amqp.version>
 	</properties>
 
 	<dependencies>
@@ -43,6 +43,12 @@
 			<version>${spring.amqp.version}</version>
 		</dependency>
 
+		<dependency>
+			<groupId>io.micrometer</groupId>
+			<artifactId>micrometer-observation</artifactId>
+			<version>1.10.0-M5</version>
+		</dependency>
+
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-test</artifactId>
diff --git a/spring-rabbit-confirms-returns/src/main/java/org/springframework/amqp/samples/confirms/SpringRabbitConfirmsReturnsApplication.java b/spring-rabbit-confirms-returns/src/main/java/org/springframework/amqp/samples/confirms/SpringRabbitConfirmsReturnsApplication.java
index 55f0ef3..0b08f42 100644
--- a/spring-rabbit-confirms-returns/src/main/java/org/springframework/amqp/samples/confirms/SpringRabbitConfirmsReturnsApplication.java
+++ b/spring-rabbit-confirms-returns/src/main/java/org/springframework/amqp/samples/confirms/SpringRabbitConfirmsReturnsApplication.java
@@ -67,7 +67,7 @@ public class SpringRabbitConfirmsReturnsApplication {
 			return message;
 		}, correlationData);
 		correlationData.getFuture().get(10, TimeUnit.SECONDS);
-		System.out.println("Return received:"  + correlationData.getReturnedMessage());
+		System.out.println("Return received:"  + correlationData.getReturned());
 	}
 
 	private void setupCallbacks() {
@@ -79,9 +79,10 @@ public class SpringRabbitConfirmsReturnsApplication {
 				System.out.println("Received " + (ack ? " ack " : " nack ") + "for correlation: " + correlation);
 			}
 		});
-		this.rabbitTemplate.setReturnCallback((message, replyCode, replyText, exchange, routingKey) -> {
-			System.out.println("Returned: " + message + "\nreplyCode: " + replyCode
-					+ "\nreplyText: " + replyText + "\nexchange/rk: " + exchange + "/" + routingKey);
+		this.rabbitTemplate.setReturnsCallback(returned -> {
+			System.out.println("Returned: " + returned.getMessage() + "\nreplyCode: " + returned.getReplyCode()
+					+ "\nreplyText: " + returned.getReplyText() + "\nexchange/rk: "
+					+ returned.getExchange() + "/" + returned.getRoutingKey());
 		});
 	}
 
diff --git a/spring-rabbit-global-errorhandler/pom.xml b/spring-rabbit-global-errorhandler/pom.xml
index 87a39ea..114d1ec 100644
--- a/spring-rabbit-global-errorhandler/pom.xml
+++ b/spring-rabbit-global-errorhandler/pom.xml
@@ -5,7 +5,7 @@
 
 	<groupId>com.example</groupId>
 	<artifactId>spring-rabbit-global-errorhandler</artifactId>
-	<version>3.0.0-M3</version>
+	<version>3.0.0-M4</version>
 	<packaging>jar</packaging>
 
 	<name>spring-rabbit-global-errorhandler</name>
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>3.0.0-M2</version>
+		<version>3.0.0-M4</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 
@@ -22,7 +22,7 @@
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 		<java.version>1.8</java.version>
-		<spring.amqp.version>3.0.0-M3</spring.amqp.version>
+		<spring.amqp.version>3.0.0-M4</spring.amqp.version>
 	</properties>
 
 	<dependencies>
@@ -48,6 +48,12 @@
 			<version>${spring.amqp.version}</version>
 		</dependency>
 
+		<dependency>
+			<groupId>io.micrometer</groupId>
+			<artifactId>micrometer-observation</artifactId>
+			<version>1.10.0-M5</version>
+		</dependency>
+
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-test</artifactId>
diff --git a/spring-rabbit-json/pom.xml b/spring-rabbit-json/pom.xml
index 52f32e7..cf60772 100644
--- a/spring-rabbit-json/pom.xml
+++ b/spring-rabbit-json/pom.xml
@@ -5,7 +5,7 @@
 
 	<groupId>com.example</groupId>
 	<artifactId>spring-rabbit-json</artifactId>
-	<version>3.0.0-M3</version>
+	<version>3.0.0-M4</version>
 	<packaging>jar</packaging>
 
 	<name>spring-rabbit-json</name>
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>3.0.0-M2</version>
+		<version>3.0.0-M4</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 
@@ -22,7 +22,7 @@
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 		<java.version>1.8</java.version>
-		<spring.amqp.version>3.0.0-M3</spring.amqp.version>
+		<spring.amqp.version>3.0.0-M4</spring.amqp.version>
 	</properties>
 
 	<dependencies>
@@ -48,6 +48,12 @@
 			<version>${spring.amqp.version}</version>
 		</dependency>
 
+		<dependency>
+			<groupId>io.micrometer</groupId>
+			<artifactId>micrometer-observation</artifactId>
+			<version>1.10.0-M5</version>
+		</dependency>
+
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-test</artifactId>
diff --git a/stocks/pom.xml b/stocks/pom.xml
index c3192b5..abcd784 100644
--- a/stocks/pom.xml
+++ b/stocks/pom.xml
@@ -4,7 +4,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>org.springframework.samples.spring</groupId>
 	<artifactId>spring-rabbit-stocks</artifactId>
-	<version>3.0.0-M3</version>
+	<version>3.0.0-M4</version>
 	<packaging>war</packaging>
 	<name>Spring Rabbit Stocks</name>
 	<url>https://www.spring.io</url>
@@ -16,7 +16,7 @@
 	<properties>
 		<maven.test.failure.ignore>true</maven.test.failure.ignore>
 		<spring.framework.version>6.0.0-M2</spring.framework.version>
-		<spring.amqp.version>3.0.0-M3</spring.amqp.version>
+		<spring.amqp.version>3.0.0-M4</spring.amqp.version>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<java.version>1.8</java.version>
 		<maven.test.failure.ignore>false</maven.test.failure.ignore>