prepare for 1.18 release (#153)

diff --git a/NOTICE.txt b/NOTICE.txt
index c54d633..70183e0 100644
--- a/NOTICE.txt
+++ b/NOTICE.txt
@@ -1,5 +1,5 @@
 Apache OpenWhisk Runtime Java
-Copyright 2016-2021 The Apache Software Foundation
+Copyright 2016-2023 The Apache Software Foundation
 
 This product includes software developed at
 The Apache Software Foundation (http://www.apache.org/).
diff --git a/core/java8/CHANGELOG.md b/core/java8/CHANGELOG.md
index ebb1951..9d034cf 100644
--- a/core/java8/CHANGELOG.md
+++ b/core/java8/CHANGELOG.md
@@ -18,15 +18,10 @@
 -->
 
 # Java 8 OpenWhisk Runtime Container
-# next release
- - use `ibm-semeru-runtimes:open-8u362-b09-jdk-focal` as baseimage
- - update gson version to 2.9.0
-
-# 1.19.0
- - Use adoptopenjdk/openjdk8-openj9:x86_64-ubuntu-jdk8u332-b09_openj9-0.32.0
-
-## 1.18.0
-  - Use adoptopenjdk/openjdk8-openj9:x86_64-ubuntu-jdk8u322-b06_openj9-0.30.0
+# 1.18.0
+  - Use `ibm-semeru-runtimes:open-8u362-b09-jdk-focal` as baseimage (#151)
+  - Support array result include sequence action (#140)
+  - update gson version to 2.9.0 (#139)
 
 ## 1.17.0
   - Resolve akka versions explicitly. (#124, #123)
diff --git a/core/java8actionloop/CHANGELOG.md b/core/java8actionloop/CHANGELOG.md
index 7d57cba..a234828 100644
--- a/core/java8actionloop/CHANGELOG.md
+++ b/core/java8actionloop/CHANGELOG.md
@@ -18,15 +18,11 @@
 -->
 
 # Java 8 OpenWhisk Runtime Container
-# next release
- - use `ibm-semeru-runtimes:open-8u362-b09-jdk-focal` as baseimage
- - update gson version to 2.9.0
- - update Proxy to 1.20 and release 1.22.0
-# 1.19.0
- - Use adoptopenjdk/openjdk8-openj9:x86_64-ubuntu-jdk8u332-b09_openj9-0.32.0
-
-## 1.18.0
-  - Use adoptopenjdk/openjdk8-openj9:x86_64-ubuntu-jdk8u322-b06_openj9-0.30.0
+# 1.18.0
+  - Use `ibm-semeru-runtimes:open-8u362-b09-jdk-focal` as baseimage (#151)
+  - Support array result include sequence action (#140)
+  - update gson version to 2.9.0 (#139)
+  - update Proxy to 1.20 and release 1.22.0
 
 ## 1.17.0
   - Build actionloop from 1.16@1.18.0 (#125)