diff --git a/.changes/1.35.77.json b/.changes/1.35.77.json
new file mode 100644
index 0000000000..7c2bb2a8e6
--- /dev/null
+++ b/.changes/1.35.77.json
@@ -0,0 +1,37 @@
+[
+  {
+    "category": "``appsync``",
+    "description": "[``botocore``] Provides description of new Amazon Bedrock runtime datasource.",
+    "type": "api-change"
+  },
+  {
+    "category": "``cognito-idp``",
+    "description": "[``botocore``] Change `CustomDomainConfig` from a required to an optional parameter for the `UpdateUserPoolDomain` operation.",
+    "type": "api-change"
+  },
+  {
+    "category": "``ec2``",
+    "description": "[``botocore``] This release includes a new API for modifying instance network-performance-options after launch.",
+    "type": "api-change"
+  },
+  {
+    "category": "``ecs``",
+    "description": "[``botocore``] This is a documentation only update to address various tickets for Amazon ECS.",
+    "type": "api-change"
+  },
+  {
+    "category": "``keyspaces``",
+    "description": "[``botocore``] Amazon Keyspaces: adding the list of IAM actions required by the UpdateKeyspace API.",
+    "type": "api-change"
+  },
+  {
+    "category": "``medialive``",
+    "description": "[``botocore``] H265 outputs now support disabling the deblocking filter.",
+    "type": "api-change"
+  },
+  {
+    "category": "``workspaces``",
+    "description": "[``botocore``] Added text to clarify case-sensitivity",
+    "type": "api-change"
+  }
+]
\ No newline at end of file
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 817d180ab1..cfa423b810 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -2,6 +2,18 @@
 CHANGELOG
 =========
 
+1.35.77
+=======
+
+* api-change:``appsync``: [``botocore``] Provides description of new Amazon Bedrock runtime datasource.
+* api-change:``cognito-idp``: [``botocore``] Change `CustomDomainConfig` from a required to an optional parameter for the `UpdateUserPoolDomain` operation.
+* api-change:``ec2``: [``botocore``] This release includes a new API for modifying instance network-performance-options after launch.
+* api-change:``ecs``: [``botocore``] This is a documentation only update to address various tickets for Amazon ECS.
+* api-change:``keyspaces``: [``botocore``] Amazon Keyspaces: adding the list of IAM actions required by the UpdateKeyspace API.
+* api-change:``medialive``: [``botocore``] H265 outputs now support disabling the deblocking filter.
+* api-change:``workspaces``: [``botocore``] Added text to clarify case-sensitivity
+
+
 1.35.76
 =======
 
diff --git a/boto3/__init__.py b/boto3/__init__.py
index e86181a552..1058c1c89e 100644
--- a/boto3/__init__.py
+++ b/boto3/__init__.py
@@ -17,7 +17,7 @@
 from boto3.session import Session
 
 __author__ = 'Amazon Web Services'
-__version__ = '1.35.76'
+__version__ = '1.35.77'
 
 
 # The default Boto3 session; autoloaded when needed.
diff --git a/setup.cfg b/setup.cfg
index 059ddc1956..e1c0f438b7 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -3,7 +3,7 @@ universal = 0
 
 [metadata]
 requires_dist =
-    botocore>=1.35.76,<1.36.0
+    botocore>=1.35.77,<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 777afda9de..00170832b2 100644
--- a/setup.py
+++ b/setup.py
@@ -14,7 +14,7 @@
 
 
 requires = [
-    'botocore>=1.35.76,<1.36.0',
+    'botocore>=1.35.77,<1.36.0',
     'jmespath>=0.7.1,<2.0.0',
     's3transfer>=0.10.0,<0.11.0',
 ]