diff --git a/.changes/1.35.21.json b/.changes/1.35.21.json
new file mode 100644
index 0000000000..4a4ec0e03d
--- /dev/null
+++ b/.changes/1.35.21.json
@@ -0,0 +1,32 @@
+[
+  {
+    "category": "``codebuild``",
+    "description": "[``botocore``] GitLab Enhancements - Add support for Self-Hosted GitLab runners in CodeBuild. Add group webhooks",
+    "type": "api-change"
+  },
+  {
+    "category": "``ecr``",
+    "description": "[``botocore``] The `DescribeImageScanning` API now includes `fixAvailable`, `exploitAvailable`, and `fixedInVersion` fields to provide more detailed information about the availability of fixes, exploits, and fixed versions for identified image vulnerabilities.",
+    "type": "api-change"
+  },
+  {
+    "category": "``ecs``",
+    "description": "[``botocore``] This is a documentation only release to address various tickets.",
+    "type": "api-change"
+  },
+  {
+    "category": "``lambda``",
+    "description": "[``botocore``] Support for JSON resource-based policies and block public access",
+    "type": "api-change"
+  },
+  {
+    "category": "``rds``",
+    "description": "[``botocore``] Updates Amazon RDS documentation with configuration information about the BYOL model for RDS for Db2.",
+    "type": "api-change"
+  },
+  {
+    "category": "``ssm``",
+    "description": "[``botocore``] Support for additional levels of cross-account, cross-Region organizational units in Automation. Various documentation updates.",
+    "type": "api-change"
+  }
+]
\ No newline at end of file
diff --git a/.changes/next-release/api-change-codebuild-47759.json b/.changes/next-release/api-change-codebuild-47759.json
deleted file mode 100644
index 19fea13f21..0000000000
--- a/.changes/next-release/api-change-codebuild-47759.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "type": "api-change",
-  "category": "``codebuild``",
-  "description": "[``botocore``] GitLab Enhancements - Add support for Self-Hosted GitLab runners in CodeBuild. Add group webhooks"
-}
diff --git a/.changes/next-release/api-change-ecr-17459.json b/.changes/next-release/api-change-ecr-17459.json
deleted file mode 100644
index b5edc02a7b..0000000000
--- a/.changes/next-release/api-change-ecr-17459.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "type": "api-change",
-  "category": "``ecr``",
-  "description": "[``botocore``] The `DescribeImageScanning` API now includes `fixAvailable`, `exploitAvailable`, and `fixedInVersion` fields to provide more detailed information about the availability of fixes, exploits, and fixed versions for identified image vulnerabilities."
-}
diff --git a/.changes/next-release/api-change-ecs-75522.json b/.changes/next-release/api-change-ecs-75522.json
deleted file mode 100644
index 30334ec19b..0000000000
--- a/.changes/next-release/api-change-ecs-75522.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "type": "api-change",
-  "category": "``ecs``",
-  "description": "[``botocore``] This is a documentation only release to address various tickets."
-}
diff --git a/.changes/next-release/api-change-lambda-85096.json b/.changes/next-release/api-change-lambda-85096.json
deleted file mode 100644
index 3fc06761f0..0000000000
--- a/.changes/next-release/api-change-lambda-85096.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "type": "api-change",
-  "category": "``lambda``",
-  "description": "[``botocore``] Support for JSON resource-based policies and block public access"
-}
diff --git a/.changes/next-release/api-change-rds-24795.json b/.changes/next-release/api-change-rds-24795.json
deleted file mode 100644
index fc93208199..0000000000
--- a/.changes/next-release/api-change-rds-24795.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "type": "api-change",
-  "category": "``rds``",
-  "description": "[``botocore``] Updates Amazon RDS documentation with configuration information about the BYOL model for RDS for Db2."
-}
diff --git a/.changes/next-release/api-change-ssm-12300.json b/.changes/next-release/api-change-ssm-12300.json
deleted file mode 100644
index a98bbf4766..0000000000
--- a/.changes/next-release/api-change-ssm-12300.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "type": "api-change",
-  "category": "``ssm``",
-  "description": "[``botocore``] Support for additional levels of cross-account, cross-Region organizational units in Automation. Various documentation updates."
-}
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 5809b0c68c..2543d007ca 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -2,6 +2,17 @@
 CHANGELOG
 =========
 
+1.35.21
+=======
+
+* api-change:``codebuild``: [``botocore``] GitLab Enhancements - Add support for Self-Hosted GitLab runners in CodeBuild. Add group webhooks
+* api-change:``ecr``: [``botocore``] The `DescribeImageScanning` API now includes `fixAvailable`, `exploitAvailable`, and `fixedInVersion` fields to provide more detailed information about the availability of fixes, exploits, and fixed versions for identified image vulnerabilities.
+* api-change:``ecs``: [``botocore``] This is a documentation only release to address various tickets.
+* api-change:``lambda``: [``botocore``] Support for JSON resource-based policies and block public access
+* api-change:``rds``: [``botocore``] Updates Amazon RDS documentation with configuration information about the BYOL model for RDS for Db2.
+* api-change:``ssm``: [``botocore``] Support for additional levels of cross-account, cross-Region organizational units in Automation. Various documentation updates.
+
+
 1.35.20
 =======
 
diff --git a/boto3/__init__.py b/boto3/__init__.py
index 350c3eb9d1..4636ca8acf 100644
--- a/boto3/__init__.py
+++ b/boto3/__init__.py
@@ -17,7 +17,7 @@
 from boto3.session import Session
 
 __author__ = 'Amazon Web Services'
-__version__ = '1.35.20'
+__version__ = '1.35.21'
 
 
 # The default Boto3 session; autoloaded when needed.
diff --git a/setup.cfg b/setup.cfg
index 3751178ece..ad999f2be5 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -3,7 +3,7 @@ universal = 0
 
 [metadata]
 requires_dist =
-    botocore>=1.35.20,<1.36.0
+    botocore>=1.35.21,<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 810122a7a9..49366392ab 100644
--- a/setup.py
+++ b/setup.py
@@ -14,7 +14,7 @@
 
 
 requires = [
-    'botocore>=1.35.20,<1.36.0',
+    'botocore>=1.35.21,<1.36.0',
     'jmespath>=0.7.1,<2.0.0',
     's3transfer>=0.10.0,<0.11.0',
 ]