diff --git a/.changes/1.35.91.json b/.changes/1.35.91.json
new file mode 100644
index 0000000000..70d8047ebd
--- /dev/null
+++ b/.changes/1.35.91.json
@@ -0,0 +1,37 @@
+[
+  {
+    "category": "``appsync``",
+    "description": "[``botocore``] Modify UpdateGraphQLAPI operation and flag authenticationType as required.",
+    "type": "api-change"
+  },
+  {
+    "category": "``gamelift``",
+    "description": "[``botocore``] Amazon GameLift releases a new game session shutdown feature. Use the Amazon GameLift console or AWS CLI to terminate an in-progress game session that's entered a bad state or is no longer needed.",
+    "type": "api-change"
+  },
+  {
+    "category": "``mediaconnect``",
+    "description": "[``botocore``] AWS Elemental MediaConnect now supports Content Quality Analysis for enhanced source stream monitoring. This enables you to track specific audio and video metrics in transport stream source flows, ensuring your content meets quality standards.",
+    "type": "api-change"
+  },
+  {
+    "category": "``mediaconvert``",
+    "description": "[``botocore``] This release adds support for the AVC3 codec and fixes an alignment issue with Japanese vertical captions.",
+    "type": "api-change"
+  },
+  {
+    "category": "``organizations``",
+    "description": "[``botocore``] Added ALL_FEATURES_MIGRATION_ORGANIZATION_SIZE_LIMIT_EXCEEDED to ConstraintViolationException for the EnableAllFeatures operation.",
+    "type": "api-change"
+  },
+  {
+    "category": "``sagemaker``",
+    "description": "[``botocore``] Adding ETag information with Model Artifacts for Model Registry",
+    "type": "api-change"
+  },
+  {
+    "category": "``sqs``",
+    "description": "[``botocore``] In-flight message typo fix from 20k to 120k.",
+    "type": "api-change"
+  }
+]
\ No newline at end of file
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 214908c3da..d7b7b7c7fd 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -2,6 +2,18 @@
 CHANGELOG
 =========
 
+1.35.91
+=======
+
+* api-change:``appsync``: [``botocore``] Modify UpdateGraphQLAPI operation and flag authenticationType as required.
+* api-change:``gamelift``: [``botocore``] Amazon GameLift releases a new game session shutdown feature. Use the Amazon GameLift console or AWS CLI to terminate an in-progress game session that's entered a bad state or is no longer needed.
+* api-change:``mediaconnect``: [``botocore``] AWS Elemental MediaConnect now supports Content Quality Analysis for enhanced source stream monitoring. This enables you to track specific audio and video metrics in transport stream source flows, ensuring your content meets quality standards.
+* api-change:``mediaconvert``: [``botocore``] This release adds support for the AVC3 codec and fixes an alignment issue with Japanese vertical captions.
+* api-change:``organizations``: [``botocore``] Added ALL_FEATURES_MIGRATION_ORGANIZATION_SIZE_LIMIT_EXCEEDED to ConstraintViolationException for the EnableAllFeatures operation.
+* api-change:``sagemaker``: [``botocore``] Adding ETag information with Model Artifacts for Model Registry
+* api-change:``sqs``: [``botocore``] In-flight message typo fix from 20k to 120k.
+
+
 1.35.90
 =======
 
diff --git a/boto3/__init__.py b/boto3/__init__.py
index b4988e15ae..291e0beb45 100644
--- a/boto3/__init__.py
+++ b/boto3/__init__.py
@@ -17,7 +17,7 @@
 from boto3.session import Session
 
 __author__ = 'Amazon Web Services'
-__version__ = '1.35.90'
+__version__ = '1.35.91'
 
 
 # The default Boto3 session; autoloaded when needed.
diff --git a/setup.cfg b/setup.cfg
index 3fe7154fb8..ed3d542e72 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -3,7 +3,7 @@ universal = 0
 
 [metadata]
 requires_dist =
-    botocore>=1.35.90,<1.36.0
+    botocore>=1.35.91,<1.36.0
     jmespath>=0.7.1,<2.0.0
     s3transfer>=0.10.0,<0.11.0
 
diff --git a/setup.py b/setup.py
index b51e26fa83..af13b75010 100644
--- a/setup.py
+++ b/setup.py
@@ -14,7 +14,7 @@
 
 
 requires = [
-    'botocore>=1.35.90,<1.36.0',
+    'botocore>=1.35.91,<1.36.0',
     'jmespath>=0.7.1,<2.0.0',
     's3transfer>=0.10.0,<0.11.0',
 ]