diff --git a/.changes/1.21.56.json b/.changes/1.21.56.json
new file mode 100644
index 0000000000..d4fb2c0814
--- /dev/null
+++ b/.changes/1.21.56.json
@@ -0,0 +1,22 @@
+[
+  {
+    "category": "``sagemaker``",
+    "description": "This release adds a new TrainingInputMode FastFile for SageMaker Training APIs.",
+    "type": "api-change"
+  },
+  {
+    "category": "``amplifybackend``",
+    "description": "Adding a new field 'AmplifyFeatureFlags' to the response of the GetBackend operation. It will return a stringified version of the cli.json file for the given Amplify project.",
+    "type": "api-change"
+  },
+  {
+    "category": "``fsx``",
+    "description": "This release adds support for Lustre 2.12 to FSx for Lustre.",
+    "type": "api-change"
+  },
+  {
+    "category": "``kendra``",
+    "description": "Amazon Kendra now supports integration with AWS SSO",
+    "type": "api-change"
+  }
+]
\ No newline at end of file
diff --git a/.changes/next-release/api-change-amplifybackend-93273.json b/.changes/next-release/api-change-amplifybackend-93273.json
deleted file mode 100644
index f8216da7bc..0000000000
--- a/.changes/next-release/api-change-amplifybackend-93273.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "type": "api-change",
-  "category": "``amplifybackend``",
-  "description": "Adding a new field 'AmplifyFeatureFlags' to the response of the GetBackend operation. It will return a stringified version of the cli.json file for the given Amplify project."
-}
diff --git a/.changes/next-release/api-change-fsx-11901.json b/.changes/next-release/api-change-fsx-11901.json
deleted file mode 100644
index fde98e4108..0000000000
--- a/.changes/next-release/api-change-fsx-11901.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "type": "api-change",
-  "category": "``fsx``",
-  "description": "This release adds support for Lustre 2.12 to FSx for Lustre."
-}
diff --git a/.changes/next-release/api-change-kendra-93692.json b/.changes/next-release/api-change-kendra-93692.json
deleted file mode 100644
index 1a1cca4c6a..0000000000
--- a/.changes/next-release/api-change-kendra-93692.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "type": "api-change",
-  "category": "``kendra``",
-  "description": "Amazon Kendra now supports integration with AWS SSO"
-}
diff --git a/.changes/next-release/api-change-sagemaker-37113.json b/.changes/next-release/api-change-sagemaker-37113.json
deleted file mode 100644
index 530a1aaabf..0000000000
--- a/.changes/next-release/api-change-sagemaker-37113.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "type": "api-change",
-  "category": "``sagemaker``",
-  "description": "This release adds a new TrainingInputMode FastFile for SageMaker Training APIs."
-}
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 75fe292117..d095eeda4e 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -2,6 +2,15 @@
 CHANGELOG
 =========
 
+1.21.56
+=======
+
+* api-change:``sagemaker``: This release adds a new TrainingInputMode FastFile for SageMaker Training APIs.
+* api-change:``amplifybackend``: Adding a new field 'AmplifyFeatureFlags' to the response of the GetBackend operation. It will return a stringified version of the cli.json file for the given Amplify project.
+* api-change:``fsx``: This release adds support for Lustre 2.12 to FSx for Lustre.
+* api-change:``kendra``: Amazon Kendra now supports integration with AWS SSO
+
+
 1.21.55
 =======
 
diff --git a/botocore/__init__.py b/botocore/__init__.py
index 4bca8ee373..8d65dcfd62 100644
--- a/botocore/__init__.py
+++ b/botocore/__init__.py
@@ -16,7 +16,7 @@
 import re
 import logging
 
-__version__ = '1.21.55'
+__version__ = '1.21.56'
 
 
 class NullHandler(logging.Handler):
diff --git a/docs/source/conf.py b/docs/source/conf.py
index d84fbcea3d..81d42b3b63 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -54,7 +54,7 @@
 # The short X.Y version.
 version = '1.21.'
 # The full version, including alpha/beta/rc tags.
-release = '1.21.55'
+release = '1.21.56'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.