diff --git a/.changes/1.34.28.json b/.changes/1.34.28.json
new file mode 100644
index 000000000000..5b9026c80bb3
--- /dev/null
+++ b/.changes/1.34.28.json
@@ -0,0 +1,32 @@
+[
+  {
+    "category": "``chatbot``",
+    "description": "Return State and StateReason fields for Chatbot Channel Configurations.",
+    "type": "api-change"
+  },
+  {
+    "category": "``lambda``",
+    "description": "Reverting Lambda resource-based policy and block public access APIs.",
+    "type": "api-change"
+  },
+  {
+    "category": "``organizations``",
+    "description": "Add support for policy operations on the CHATBOT_POLICY policy type.",
+    "type": "api-change"
+  },
+  {
+    "category": "``pcs``",
+    "description": "AWS PCS API documentation - Edited the description of the iamInstanceProfileArn parameter of the CreateComputeNodeGroup and UpdateComputeNodeGroup actions; edited the description of the SlurmCustomSetting data type to list the supported parameters for clusters and compute node groups.",
+    "type": "api-change"
+  },
+  {
+    "category": "``rds-data``",
+    "description": "Documentation update for RDS Data API to reflect support for Aurora MySQL Serverless v2 and Provisioned DB clusters.",
+    "type": "api-change"
+  },
+  {
+    "category": "``sagemaker``",
+    "description": "Adding `TagPropagation` attribute to Sagemaker API",
+    "type": "api-change"
+  }
+]
\ No newline at end of file
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 1251227062b4..a3bb7b4b780c 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -2,6 +2,17 @@
 CHANGELOG
 =========
 
+1.34.28
+=======
+
+* api-change:``chatbot``: Return State and StateReason fields for Chatbot Channel Configurations.
+* api-change:``lambda``: Reverting Lambda resource-based policy and block public access APIs.
+* api-change:``organizations``: Add support for policy operations on the CHATBOT_POLICY policy type.
+* api-change:``pcs``: AWS PCS API documentation - Edited the description of the iamInstanceProfileArn parameter of the CreateComputeNodeGroup and UpdateComputeNodeGroup actions; edited the description of the SlurmCustomSetting data type to list the supported parameters for clusters and compute node groups.
+* api-change:``rds-data``: Documentation update for RDS Data API to reflect support for Aurora MySQL Serverless v2 and Provisioned DB clusters.
+* api-change:``sagemaker``: Adding `TagPropagation` attribute to Sagemaker API
+
+
 1.34.27
 =======
 
diff --git a/awscli/__init__.py b/awscli/__init__.py
index 15b62a72c8c9..26ea28af3100 100644
--- a/awscli/__init__.py
+++ b/awscli/__init__.py
@@ -18,7 +18,7 @@
 
 import os
 
-__version__ = '1.34.27'
+__version__ = '1.34.28'
 
 #
 # Get our data path to be added to botocore's search path
diff --git a/doc/source/conf.py b/doc/source/conf.py
index 93c810fa7a0f..08fd3c7efbbf 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -52,7 +52,7 @@
 # The short X.Y version.
 version = '1.34.'
 # The full version, including alpha/beta/rc tags.
-release = '1.34.27'
+release = '1.34.28'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/setup.cfg b/setup.cfg
index 9b726ab865a5..cac7670fc7f1 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -3,7 +3,7 @@ universal = 0
 
 [metadata]
 requires_dist =
-        botocore==1.35.27
+        botocore==1.35.28
         docutils>=0.10,<0.17
         s3transfer>=0.10.0,<0.11.0
         PyYAML>=3.10,<6.1
diff --git a/setup.py b/setup.py
index bba8a61fe38f..b8cdfc21c1de 100644
--- a/setup.py
+++ b/setup.py
@@ -24,7 +24,7 @@ def find_version(*file_paths):
 
 
 install_requires = [
-    'botocore==1.35.27',
+    'botocore==1.35.28',
     'docutils>=0.10,<0.17',
     's3transfer>=0.10.0,<0.11.0',
     'PyYAML>=3.10,<6.1',