diff --git a/.generator/schemas/v2/openapi.yaml b/.generator/schemas/v2/openapi.yaml
index 04454bdda2..c4a3a06e29 100644
--- a/.generator/schemas/v2/openapi.yaml
+++ b/.generator/schemas/v2/openapi.yaml
@@ -83530,6 +83530,12 @@ components:
           description: The index to write logs to.
           example: logs-index
           type: string
+        data_stream:
+          $ref: "#/components/schemas/ObservabilityPipelineOpenSearchDestinationDataStream"
+        endpoint_url_key:
+          description: Name of the environment variable or secret that holds the Amazon OpenSearch endpoint URL.
+          example: AMAZON_OPENSEARCH_ENDPOINT_URL
+          type: string
         id:
           description: The unique identifier for this component.
           example: elasticsearch-destination
@@ -83547,13 +83553,13 @@ components:
         - id
         - type
         - inputs
-        - auth
       type: object
       x-pipeline-types: [logs]
     ObservabilityPipelineAmazonOpenSearchDestinationAuth:
       description: |-
         Authentication settings for the Amazon OpenSearch destination.
         The `strategy` field determines whether basic or AWS-based authentication is used.
+        When `strategy` is `basic`, use `username_key` and `password_key` to reference credentials stored in environment variables or secrets.
       properties:
         assume_role:
           description: The ARN of the role to assume (used with `aws` strategy).
@@ -83564,11 +83570,19 @@ components:
         external_id:
           description: External ID for the assumed role (used with `aws` strategy).
           type: string
+        password_key:
+          description: Name of the environment variable or secret that holds the Amazon OpenSearch password (used when `strategy` is `basic`).
+          example: AMAZON_OPENSEARCH_PASSWORD
+          type: string
         session_name:
           description: Session name for the assumed role (used with `aws` strategy).
           type: string
         strategy:
           $ref: "#/components/schemas/ObservabilityPipelineAmazonOpenSearchDestinationAuthStrategy"
+        username_key:
+          description: Name of the environment variable or secret that holds the Amazon OpenSearch username (used when `strategy` is `basic`).
+          example: AMAZON_OPENSEARCH_USERNAME
+          type: string
       required:
         - strategy
       type: object
diff --git a/src/datadog_api_client/v2/model/observability_pipeline_amazon_open_search_destination.py b/src/datadog_api_client/v2/model/observability_pipeline_amazon_open_search_destination.py
index 38f2410415..056fa62c3a 100644
--- a/src/datadog_api_client/v2/model/observability_pipeline_amazon_open_search_destination.py
+++ b/src/datadog_api_client/v2/model/observability_pipeline_amazon_open_search_destination.py
@@ -18,6 +18,9 @@
         ObservabilityPipelineAmazonOpenSearchDestinationAuth,
     )
     from datadog_api_client.v2.model.observability_pipeline_buffer_options import ObservabilityPipelineBufferOptions
+    from datadog_api_client.v2.model.observability_pipeline_open_search_destination_data_stream import (
+        ObservabilityPipelineOpenSearchDestinationDataStream,
+    )
     from datadog_api_client.v2.model.observability_pipeline_amazon_open_search_destination_type import (
         ObservabilityPipelineAmazonOpenSearchDestinationType,
     )
@@ -39,6 +42,9 @@ def openapi_types(_):
             ObservabilityPipelineAmazonOpenSearchDestinationAuth,
         )
         from datadog_api_client.v2.model.observability_pipeline_buffer_options import ObservabilityPipelineBufferOptions
+        from datadog_api_client.v2.model.observability_pipeline_open_search_destination_data_stream import (
+            ObservabilityPipelineOpenSearchDestinationDataStream,
+        )
         from datadog_api_client.v2.model.observability_pipeline_amazon_open_search_destination_type import (
             ObservabilityPipelineAmazonOpenSearchDestinationType,
         )
@@ -47,6 +53,8 @@ def openapi_types(_):
             "auth": (ObservabilityPipelineAmazonOpenSearchDestinationAuth,),
             "buffer": (ObservabilityPipelineBufferOptions,),
             "bulk_index": (str,),
+            "data_stream": (ObservabilityPipelineOpenSearchDestinationDataStream,),
+            "endpoint_url_key": (str,),
             "id": (str,),
             "inputs": ([str],),
             "type": (ObservabilityPipelineAmazonOpenSearchDestinationType,),
@@ -56,6 +64,8 @@ def openapi_types(_):
         "auth": "auth",
         "buffer": "buffer",
         "bulk_index": "bulk_index",
+        "data_stream": "data_stream",
+        "endpoint_url_key": "endpoint_url_key",
         "id": "id",
         "inputs": "inputs",
         "type": "type",
@@ -63,10 +73,10 @@ def openapi_types(_):
 
     def __init__(
         self_,
-        auth: ObservabilityPipelineAmazonOpenSearchDestinationAuth,
         id: str,
         inputs: List[str],
         type: ObservabilityPipelineAmazonOpenSearchDestinationType,
+        auth: Union[ObservabilityPipelineAmazonOpenSearchDestinationAuth, UnsetType] = unset,
         buffer: Union[
             ObservabilityPipelineBufferOptions,
             ObservabilityPipelineDiskBufferOptions,
@@ -75,6 +85,8 @@ def __init__(
             UnsetType,
         ] = unset,
         bulk_index: Union[str, UnsetType] = unset,
+        data_stream: Union[ObservabilityPipelineOpenSearchDestinationDataStream, UnsetType] = unset,
+        endpoint_url_key: Union[str, UnsetType] = unset,
         **kwargs,
     ):
         """
@@ -84,7 +96,8 @@ def __init__(
 
         :param auth: Authentication settings for the Amazon OpenSearch destination.
             The ``strategy`` field determines whether basic or AWS-based authentication is used.
-        :type auth: ObservabilityPipelineAmazonOpenSearchDestinationAuth
+            When ``strategy`` is ``basic`` , use ``username_key`` and ``password_key`` to reference credentials stored in environment variables or secrets.
+        :type auth: ObservabilityPipelineAmazonOpenSearchDestinationAuth, optional
 
         :param buffer: Configuration for buffer settings on destination components.
         :type buffer: ObservabilityPipelineBufferOptions, optional
@@ -92,6 +105,12 @@ def __init__(
         :param bulk_index: The index to write logs to.
         :type bulk_index: str, optional
 
+        :param data_stream: Configuration options for writing to OpenSearch Data Streams instead of a fixed index.
+        :type data_stream: ObservabilityPipelineOpenSearchDestinationDataStream, optional
+
+        :param endpoint_url_key: Name of the environment variable or secret that holds the Amazon OpenSearch endpoint URL.
+        :type endpoint_url_key: str, optional
+
         :param id: The unique identifier for this component.
         :type id: str
 
@@ -101,13 +120,18 @@ def __init__(
         :param type: The destination type. The value should always be ``amazon_opensearch``.
         :type type: ObservabilityPipelineAmazonOpenSearchDestinationType
         """
+        if auth is not unset:
+            kwargs["auth"] = auth
         if buffer is not unset:
             kwargs["buffer"] = buffer
         if bulk_index is not unset:
             kwargs["bulk_index"] = bulk_index
+        if data_stream is not unset:
+            kwargs["data_stream"] = data_stream
+        if endpoint_url_key is not unset:
+            kwargs["endpoint_url_key"] = endpoint_url_key
         super().__init__(kwargs)
 
-        self_.auth = auth
         self_.id = id
         self_.inputs = inputs
         self_.type = type
diff --git a/src/datadog_api_client/v2/model/observability_pipeline_amazon_open_search_destination_auth.py b/src/datadog_api_client/v2/model/observability_pipeline_amazon_open_search_destination_auth.py
index 2165d0a596..3a8d812082 100644
--- a/src/datadog_api_client/v2/model/observability_pipeline_amazon_open_search_destination_auth.py
+++ b/src/datadog_api_client/v2/model/observability_pipeline_amazon_open_search_destination_auth.py
@@ -30,16 +30,20 @@ def openapi_types(_):
             "assume_role": (str,),
             "aws_region": (str,),
             "external_id": (str,),
+            "password_key": (str,),
             "session_name": (str,),
             "strategy": (ObservabilityPipelineAmazonOpenSearchDestinationAuthStrategy,),
+            "username_key": (str,),
         }
 
     attribute_map = {
         "assume_role": "assume_role",
         "aws_region": "aws_region",
         "external_id": "external_id",
+        "password_key": "password_key",
         "session_name": "session_name",
         "strategy": "strategy",
+        "username_key": "username_key",
     }
 
     def __init__(
@@ -48,12 +52,15 @@ def __init__(
         assume_role: Union[str, UnsetType] = unset,
         aws_region: Union[str, UnsetType] = unset,
         external_id: Union[str, UnsetType] = unset,
+        password_key: Union[str, UnsetType] = unset,
         session_name: Union[str, UnsetType] = unset,
+        username_key: Union[str, UnsetType] = unset,
         **kwargs,
     ):
         """
         Authentication settings for the Amazon OpenSearch destination.
         The ``strategy`` field determines whether basic or AWS-based authentication is used.
+        When ``strategy`` is ``basic`` , use ``username_key`` and ``password_key`` to reference credentials stored in environment variables or secrets.
 
         :param assume_role: The ARN of the role to assume (used with ``aws`` strategy).
         :type assume_role: str, optional
@@ -64,11 +71,17 @@ def __init__(
         :param external_id: External ID for the assumed role (used with ``aws`` strategy).
         :type external_id: str, optional
 
+        :param password_key: Name of the environment variable or secret that holds the Amazon OpenSearch password (used when ``strategy`` is ``basic`` ).
+        :type password_key: str, optional
+
         :param session_name: Session name for the assumed role (used with ``aws`` strategy).
         :type session_name: str, optional
 
         :param strategy: The authentication strategy to use.
         :type strategy: ObservabilityPipelineAmazonOpenSearchDestinationAuthStrategy
+
+        :param username_key: Name of the environment variable or secret that holds the Amazon OpenSearch username (used when ``strategy`` is ``basic`` ).
+        :type username_key: str, optional
         """
         if assume_role is not unset:
             kwargs["assume_role"] = assume_role
@@ -76,8 +89,12 @@ def __init__(
             kwargs["aws_region"] = aws_region
         if external_id is not unset:
             kwargs["external_id"] = external_id
+        if password_key is not unset:
+            kwargs["password_key"] = password_key
         if session_name is not unset:
             kwargs["session_name"] = session_name
+        if username_key is not unset:
+            kwargs["username_key"] = username_key
         super().__init__(kwargs)
 
         self_.strategy = strategy