Bump version to 1.4.2

Signed-off-by: Eric Zhao <sczyh16@gmail.com>
diff --git a/README.md b/README.md
index 76e5a32..da6bd23 100644
--- a/README.md
+++ b/README.md
@@ -15,6 +15,9 @@
+> Note: currently this adapter is not compatible with Dubbo 2.7.x due to its package renaming.
+We are working to support the latest Dubbo version.
 The Sentinel filters are **enabled by default**. Once you add the dependency,
 the Dubbo services and methods will become protected resources in Sentinel,
 which can leverage Sentinel's flow control and guard ability when rules are configured.
diff --git a/pom.xml b/pom.xml
index 767d9e3..3ed33aa 100644
--- a/pom.xml
+++ b/pom.xml
@@ -7,7 +7,7 @@
-        <version>1.3.0-GA</version>
+        <version>1.4.2</version>