diff --git a/README.md b/README.md
index 1c17c7e242f044a513e7f399e175a13cf5a73721..33b42800cf31d33ed3e49177a33e382dfda97de1 100644
--- a/README.md
+++ b/README.md
@@ -8,10 +8,12 @@
 It offers a variety of features:
 
 * Pub/Sub messaging model
-* Scheduled message delivery
+* Financial grade transactional message
+* A variety of cross language clients, such as Java, C/C++, Python, Go
+* Pluggable transport protocols, such as TCP, SSL, AIO
+* Inbuilt message tracing capability, also support opentracing
+* Versatile big-data and streaming ecosytem integration
 * Message retroactivity by time or offset
-* Log hub for streaming
-* Big data integration
 * Reliable FIFO and strict ordered messaging in the same queue
 * Efficient pull&push consumption model
 * Million-level message accumulation capacity in a single queue
@@ -21,9 +23,7 @@ It offers a variety of features:
 * Various message filter mechanics such as SQL and Tag
 * Docker images for isolated testing and cloud isolated clusters
 * Feature-rich administrative dashboard for configuration, metrics and monitoring
-* Access control list
-* Message trace
-
+* Authentication and authorisation
 
 ----------
 
diff --git a/client/src/main/java/org/apache/rocketmq/client/impl/producer/DefaultMQProducerImpl.java b/client/src/main/java/org/apache/rocketmq/client/impl/producer/DefaultMQProducerImpl.java
index 95696d91b475cc353a14288330e36631b965a7e0..5b7ba9c6f79d24adb5e9e48b7d777e6c2aa0c018 100644
--- a/client/src/main/java/org/apache/rocketmq/client/impl/producer/DefaultMQProducerImpl.java
+++ b/client/src/main/java/org/apache/rocketmq/client/impl/producer/DefaultMQProducerImpl.java
@@ -1188,6 +1188,12 @@ public class DefaultMQProducerImpl implements MQProducerInner {
         if (null == localTransactionExecuter && null == transactionListener) {
             throw new MQClientException("tranExecutor is null", null);
         }
+
+        // ignore DelayTimeLevel parameter
+        if (msg.getDelayTimeLevel() != 0) {
+            MessageAccessor.clearProperty(msg, MessageConst.PROPERTY_DELAY_TIME_LEVEL);
+        }
+
         Validators.checkMessage(msg, this.defaultMQProducer);
 
         SendResult sendResult = null;
diff --git a/pom.xml b/pom.xml
index 0161c7b924727521bb87ca3e78f5fef614a4236c..14b10fae72f9aebc6ddc42730c40a7fceed50dc9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -569,7 +569,7 @@
             <dependency>
                 <groupId>com.alibaba</groupId>
                 <artifactId>fastjson</artifactId>
-                <version>1.2.51</version>
+                <version>1.2.61</version>
             </dependency>
             <dependency>
                 <groupId>org.javassist</groupId>