diff --git a/.changes/1.34.143.json b/.changes/1.34.143.json
new file mode 100644
index 0000000000..00a45d160c
--- /dev/null
+++ b/.changes/1.34.143.json
@@ -0,0 +1,52 @@
+[
+  {
+    "category": "``batch``",
+    "description": "[``botocore``] This feature allows AWS Batch Jobs with EKS container orchestration type to be run as Multi-Node Parallel Jobs.",
+    "type": "api-change"
+  },
+  {
+    "category": "``bedrock``",
+    "description": "[``botocore``] Add support for contextual grounding check for Guardrails for Amazon Bedrock.",
+    "type": "api-change"
+  },
+  {
+    "category": "``bedrock-agent``",
+    "description": "[``botocore``] Introduces new data sources and chunking strategies for Knowledge bases, advanced parsing logic using FMs, session summary generation, and code interpretation (preview) for Claude V3 Sonnet and Haiku models. Also introduces Prompt Flows (preview) to link prompts, foundational models, and resources.",
+    "type": "api-change"
+  },
+  {
+    "category": "``bedrock-agent-runtime``",
+    "description": "[``botocore``] Introduces query decomposition, enhanced Agents integration with Knowledge bases, session summary generation, and code interpretation (preview) for Claude V3 Sonnet and Haiku models. Also introduces Prompt Flows (preview) to link prompts, foundational models, and resources for end-to-end solutions.",
+    "type": "api-change"
+  },
+  {
+    "category": "``bedrock-runtime``",
+    "description": "[``botocore``] Add support for contextual grounding check and ApplyGuardrail API for Guardrails for Amazon Bedrock.",
+    "type": "api-change"
+  },
+  {
+    "category": "``ec2``",
+    "description": "[``botocore``] Add parameters to enable provisioning IPAM BYOIPv4 space at a Local Zone Network Border Group level",
+    "type": "api-change"
+  },
+  {
+    "category": "``glue``",
+    "description": "[``botocore``] Add recipe step support for recipe node",
+    "type": "api-change"
+  },
+  {
+    "category": "``groundstation``",
+    "description": "[``botocore``] Documentation update specifying OEM ephemeris units of measurement",
+    "type": "api-change"
+  },
+  {
+    "category": "``license-manager-linux-subscriptions``",
+    "description": "[``botocore``] Add support for third party subscription providers, starting with RHEL subscriptions through Red Hat Subscription Manager (RHSM). Additionally, add support for tagging subscription provider resources, and detect when an instance has more than one Linux subscription and notify the customer.",
+    "type": "api-change"
+  },
+  {
+    "category": "``mediaconnect``",
+    "description": "[``botocore``] AWS Elemental MediaConnect introduces the ability to disable outputs. Disabling an output allows you to keep the output attached to the flow, but stop streaming to the output destination. A disabled output does not incur data transfer costs.",
+    "type": "api-change"
+  }
+]
\ No newline at end of file
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index ef2064b0e8..c03fe46701 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -2,6 +2,21 @@
 CHANGELOG
 =========
 
+1.34.143
+========
+
+* api-change:``batch``: [``botocore``] This feature allows AWS Batch Jobs with EKS container orchestration type to be run as Multi-Node Parallel Jobs.
+* api-change:``bedrock``: [``botocore``] Add support for contextual grounding check for Guardrails for Amazon Bedrock.
+* api-change:``bedrock-agent``: [``botocore``] Introduces new data sources and chunking strategies for Knowledge bases, advanced parsing logic using FMs, session summary generation, and code interpretation (preview) for Claude V3 Sonnet and Haiku models. Also introduces Prompt Flows (preview) to link prompts, foundational models, and resources.
+* api-change:``bedrock-agent-runtime``: [``botocore``] Introduces query decomposition, enhanced Agents integration with Knowledge bases, session summary generation, and code interpretation (preview) for Claude V3 Sonnet and Haiku models. Also introduces Prompt Flows (preview) to link prompts, foundational models, and resources for end-to-end solutions.
+* api-change:``bedrock-runtime``: [``botocore``] Add support for contextual grounding check and ApplyGuardrail API for Guardrails for Amazon Bedrock.
+* api-change:``ec2``: [``botocore``] Add parameters to enable provisioning IPAM BYOIPv4 space at a Local Zone Network Border Group level
+* api-change:``glue``: [``botocore``] Add recipe step support for recipe node
+* api-change:``groundstation``: [``botocore``] Documentation update specifying OEM ephemeris units of measurement
+* api-change:``license-manager-linux-subscriptions``: [``botocore``] Add support for third party subscription providers, starting with RHEL subscriptions through Red Hat Subscription Manager (RHSM). Additionally, add support for tagging subscription provider resources, and detect when an instance has more than one Linux subscription and notify the customer.
+* api-change:``mediaconnect``: [``botocore``] AWS Elemental MediaConnect introduces the ability to disable outputs. Disabling an output allows you to keep the output attached to the flow, but stop streaming to the output destination. A disabled output does not incur data transfer costs.
+
+
 1.34.142
 ========
 
diff --git a/boto3/__init__.py b/boto3/__init__.py
index 8b010acb94..8200d098ce 100644
--- a/boto3/__init__.py
+++ b/boto3/__init__.py
@@ -17,7 +17,7 @@
 from boto3.session import Session
 
 __author__ = 'Amazon Web Services'
-__version__ = '1.34.142'
+__version__ = '1.34.143'
 
 
 # The default Boto3 session; autoloaded when needed.
diff --git a/setup.cfg b/setup.cfg
index 0b0957aeac..39c3a73e94 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -3,7 +3,7 @@ universal = 0
 
 [metadata]
 requires_dist =
-    botocore>=1.34.142,<1.35.0
+    botocore>=1.34.143,<1.35.0
     jmespath>=0.7.1,<2.0.0
     s3transfer>=0.10.0,<0.11.0
 
diff --git a/setup.py b/setup.py
index f6ff094116..489b092b37 100644
--- a/setup.py
+++ b/setup.py
@@ -14,7 +14,7 @@
 
 
 requires = [
-    'botocore>=1.34.142,<1.35.0',
+    'botocore>=1.34.143,<1.35.0',
     'jmespath>=0.7.1,<2.0.0',
     's3transfer>=0.10.0,<0.11.0',
 ]