prepare for 1.20.0 release (#140)

diff --git a/NOTICE.txt b/NOTICE.txt
index 2dd571e..0ac1a5c 100644
--- a/NOTICE.txt
+++ b/NOTICE.txt
@@ -1,5 +1,5 @@
 Apache OpenWhisk Runtime PHP
-Copyright 2016-2023 The Apache Software Foundation
+Copyright 2016-2024 The Apache Software Foundation
 
 This product includes software developed at
 The Apache Software Foundation (http://www.apache.org/).
diff --git a/core/php8.1Action/CHANGELOG.md b/core/php8.1Action/CHANGELOG.md
index dfba315..5112c26 100644
--- a/core/php8.1Action/CHANGELOG.md
+++ b/core/php8.1Action/CHANGELOG.md
@@ -17,8 +17,11 @@
 #
 -->
 
+## Apache 1.20.0
+- Update go proxy to 1.21@1.23.0 (#137)
+
 ## Apache 1.19.0
-  - No change
+- No change
 
 ## Apache 1.18.0
 Initial release
diff --git a/core/php8.2Action/CHANGELOG.md b/core/php8.2Action/CHANGELOG.md
index 1e52e44..6da86ef 100644
--- a/core/php8.2Action/CHANGELOG.md
+++ b/core/php8.2Action/CHANGELOG.md
@@ -17,8 +17,10 @@
 #
 -->
 
-## Apache 1.19.0
+## Apache 1.20.0
+- Update go proxy to 1.21@1.23.0 (#137)
 
+## Apache 1.19.0
 - Initial release
 
 - Added: PHP: 8.2.8
diff --git a/core/php8.3Action/CHANGELOG.md b/core/php8.3Action/CHANGELOG.md
index e0bf8ef..cf8abf6 100644
--- a/core/php8.3Action/CHANGELOG.md
+++ b/core/php8.3Action/CHANGELOG.md
@@ -17,8 +17,8 @@
 #
 -->
 
-## Initial Release
-
+## Apache 1.20.0
+- Initial Release
 
 - Added: PHP: 8.3.2
 - Added: PHP extensions in addition to the standard ones: