update NOTICE date and CHANGES.md to prepare for 1.17.0 release (#139)

diff --git a/CHANGES.md b/CHANGES.md
index 87d8276..e5bb141 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -16,7 +16,7 @@
 # limitations under the License.
 #
 -->
-# (next release)
+# 1.17.0
 - go 1.15 runtime upgraded to 1.15.7
 - go 1.13 runtime upgraded to 1.13.15
 - add 'apt-get upgrade' to the image build of go 1.15 and go 1.13 to get latest security fixes during each build, for the case the base images are not updated frequently
diff --git a/NOTICE.txt b/NOTICE.txt
index 8feb869..42967be 100644
--- a/NOTICE.txt
+++ b/NOTICE.txt
@@ -1,5 +1,5 @@
 Apache OpenWhisk Runtime Go
-Copyright 2016-2020 The Apache Software Foundation
+Copyright 2016-2021 The Apache Software Foundation
 
 This product includes software developed at
 The Apache Software Foundation (http://www.apache.org/).