diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9a527c4fda7..1a8337f4369 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,9 @@
 Unreleased Changes
 ------------------
 
+2.11.591 (2020-09-22)
+------------------
+
 * Feature - Aws::Comprehend - Updated the API, and documentation for Amazon Comprehend.
 
 * Feature - Aws::LexModelBuildingService - Updated the API, and documentation for Amazon Lex Model Building Service.
diff --git a/VERSION b/VERSION
index 58191f8e851..7f07b340249 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.11.590
\ No newline at end of file
+2.11.591
\ No newline at end of file
diff --git a/aws-sdk-core/lib/aws-sdk-core/version.rb b/aws-sdk-core/lib/aws-sdk-core/version.rb
index a6905665bb4..efc43ec4460 100644
--- a/aws-sdk-core/lib/aws-sdk-core/version.rb
+++ b/aws-sdk-core/lib/aws-sdk-core/version.rb
@@ -1,3 +1,3 @@
 module Aws
-  VERSION = '2.11.590'
+  VERSION = '2.11.591'
 end