Update dates in NOTICE
diff --git a/NOTICE b/NOTICE
index 4ba7354..20a92e2 100644
--- a/NOTICE
+++ b/NOTICE
@@ -1,5 +1,5 @@
 Apache Mynewt
-Copyright 2015-2017 The Apache Software Foundation
+Copyright 2015-2020 The Apache Software Foundation
 
 This product includes software developed at
 The Apache Software Foundation (http://www.apache.org/).