diff --git a/.generator/schemas/v2/openapi.yaml b/.generator/schemas/v2/openapi.yaml
index 6cd7c2ab9ef..2324377ef5c 100644
--- a/.generator/schemas/v2/openapi.yaml
+++ b/.generator/schemas/v2/openapi.yaml
@@ -38711,12 +38711,14 @@ components:
       - none
       - basic
       - bearer
+      - custom
       example: basic
       type: string
       x-enum-varnames:
       - NONE
       - BASIC
       - BEARER
+      - CUSTOM
     ObservabilityPipelineHttpClientSourceType:
       default: http_client
       description: The source type. The value should always be `http_client`.
@@ -39279,6 +39281,8 @@ components:
           description: The index to write logs to.
           example: logs-index
           type: string
+        data_stream:
+          $ref: '#/components/schemas/ObservabilityPipelineOpenSearchDestinationDataStream'
         id:
           description: The unique identifier for this component.
           example: opensearch-destination
@@ -39300,6 +39304,23 @@ components:
       type: object
       x-pipeline-types:
       - logs
+    ObservabilityPipelineOpenSearchDestinationDataStream:
+      description: Configuration options for writing to OpenSearch Data Streams instead
+        of a fixed index.
+      properties:
+        dataset:
+          description: The data stream dataset for your logs. This groups logs by
+            their source or application.
+          type: string
+        dtype:
+          description: The data stream type for your logs. This determines how logs
+            are categorized within the data stream.
+          type: string
+        namespace:
+          description: The data stream namespace for your logs. This separates logs
+            into different environments or domains.
+          type: string
+      type: object
     ObservabilityPipelineOpenSearchDestinationType:
       default: opensearch
       description: The destination type. The value should always be `opensearch`.
diff --git a/lib/datadog_api_client/inflector.rb b/lib/datadog_api_client/inflector.rb
index 0d9ba8f96c3..68cc16e4250 100644
--- a/lib/datadog_api_client/inflector.rb
+++ b/lib/datadog_api_client/inflector.rb
@@ -3381,6 +3381,7 @@ def overrides
           "v2.observability_pipeline_ocsf_mapper_processor_type" => "ObservabilityPipelineOcsfMapperProcessorType",
           "v2.observability_pipeline_ocsf_mapping_library" => "ObservabilityPipelineOcsfMappingLibrary",
           "v2.observability_pipeline_open_search_destination" => "ObservabilityPipelineOpenSearchDestination",
+          "v2.observability_pipeline_open_search_destination_data_stream" => "ObservabilityPipelineOpenSearchDestinationDataStream",
           "v2.observability_pipeline_open_search_destination_type" => "ObservabilityPipelineOpenSearchDestinationType",
           "v2.observability_pipeline_opentelemetry_source" => "ObservabilityPipelineOpentelemetrySource",
           "v2.observability_pipeline_opentelemetry_source_type" => "ObservabilityPipelineOpentelemetrySourceType",
diff --git a/lib/datadog_api_client/v2/models/observability_pipeline_http_client_source_auth_strategy.rb b/lib/datadog_api_client/v2/models/observability_pipeline_http_client_source_auth_strategy.rb
index 0c50637d8f1..1feb039bf12 100644
--- a/lib/datadog_api_client/v2/models/observability_pipeline_http_client_source_auth_strategy.rb
+++ b/lib/datadog_api_client/v2/models/observability_pipeline_http_client_source_auth_strategy.rb
@@ -24,5 +24,6 @@ class ObservabilityPipelineHttpClientSourceAuthStrategy
     NONE = "none".freeze
     BASIC = "basic".freeze
     BEARER = "bearer".freeze
+    CUSTOM = "custom".freeze
   end
 end
diff --git a/lib/datadog_api_client/v2/models/observability_pipeline_open_search_destination.rb b/lib/datadog_api_client/v2/models/observability_pipeline_open_search_destination.rb
index 09331c31ee2..54b256eb85f 100644
--- a/lib/datadog_api_client/v2/models/observability_pipeline_open_search_destination.rb
+++ b/lib/datadog_api_client/v2/models/observability_pipeline_open_search_destination.rb
@@ -26,6 +26,9 @@ class ObservabilityPipelineOpenSearchDestination
     # The index to write logs to.
     attr_accessor :bulk_index
 
+    # Configuration options for writing to OpenSearch Data Streams instead of a fixed index.
+    attr_accessor :data_stream
+
     # The unique identifier for this component.
     attr_reader :id
 
@@ -42,6 +45,7 @@ class ObservabilityPipelineOpenSearchDestination
     def self.attribute_map
       {
         :'bulk_index' => :'bulk_index',
+        :'data_stream' => :'data_stream',
         :'id' => :'id',
         :'inputs' => :'inputs',
         :'type' => :'type'
@@ -53,6 +57,7 @@ def self.attribute_map
     def self.openapi_types
       {
         :'bulk_index' => :'String',
+        :'data_stream' => :'ObservabilityPipelineOpenSearchDestinationDataStream',
         :'id' => :'String',
         :'inputs' => :'Array<String>',
         :'type' => :'ObservabilityPipelineOpenSearchDestinationType'
@@ -81,6 +86,10 @@ def initialize(attributes = {})
         self.bulk_index = attributes[:'bulk_index']
       end
 
+      if attributes.key?(:'data_stream')
+        self.data_stream = attributes[:'data_stream']
+      end
+
       if attributes.key?(:'id')
         self.id = attributes[:'id']
       end
@@ -163,6 +172,7 @@ def ==(o)
       return true if self.equal?(o)
       self.class == o.class &&
           bulk_index == o.bulk_index &&
+          data_stream == o.data_stream &&
           id == o.id &&
           inputs == o.inputs &&
           type == o.type &&
@@ -173,7 +183,7 @@ def ==(o)
     # @return [Integer] Hash code
     # @!visibility private
     def hash
-      [bulk_index, id, inputs, type, additional_properties].hash
+      [bulk_index, data_stream, id, inputs, type, additional_properties].hash
     end
   end
 end
diff --git a/lib/datadog_api_client/v2/models/observability_pipeline_open_search_destination_data_stream.rb b/lib/datadog_api_client/v2/models/observability_pipeline_open_search_destination_data_stream.rb
new file mode 100644
index 00000000000..e1b3be30c8b
--- /dev/null
+++ b/lib/datadog_api_client/v2/models/observability_pipeline_open_search_destination_data_stream.rb
@@ -0,0 +1,125 @@
+=begin
+#Datadog API V2 Collection
+
+#Collection of all Datadog Public endpoints.
+
+The version of the OpenAPI document: 1.0
+Contact: support@datadoghq.com
+Generated by: https://github.com/DataDog/datadog-api-client-ruby/tree/master/.generator
+
+ Unless explicitly stated otherwise all files in this repository are licensed under the Apache-2.0 License.
+ This product includes software developed at Datadog (https://www.datadoghq.com/).
+ Copyright 2020-Present Datadog, Inc.
+
+=end
+
+require 'date'
+require 'time'
+
+module DatadogAPIClient::V2
+  # Configuration options for writing to OpenSearch Data Streams instead of a fixed index.
+  class ObservabilityPipelineOpenSearchDestinationDataStream
+    include BaseGenericModel
+
+    # The data stream dataset for your logs. This groups logs by their source or application.
+    attr_accessor :dataset
+
+    # The data stream type for your logs. This determines how logs are categorized within the data stream.
+    attr_accessor :dtype
+
+    # The data stream namespace for your logs. This separates logs into different environments or domains.
+    attr_accessor :namespace
+
+    attr_accessor :additional_properties
+
+    # Attribute mapping from ruby-style variable name to JSON key.
+    # @!visibility private
+    def self.attribute_map
+      {
+        :'dataset' => :'dataset',
+        :'dtype' => :'dtype',
+        :'namespace' => :'namespace'
+      }
+    end
+
+    # Attribute type mapping.
+    # @!visibility private
+    def self.openapi_types
+      {
+        :'dataset' => :'String',
+        :'dtype' => :'String',
+        :'namespace' => :'String'
+      }
+    end
+
+    # Initializes the object
+    # @param attributes [Hash] Model attributes in the form of hash
+    # @!visibility private
+    def initialize(attributes = {})
+      if (!attributes.is_a?(Hash))
+        fail ArgumentError, "The input argument (attributes) must be a hash in `DatadogAPIClient::V2::ObservabilityPipelineOpenSearchDestinationDataStream` initialize method"
+      end
+
+      self.additional_properties = {}
+      # check to see if the attribute exists and convert string to symbol for hash key
+      attributes = attributes.each_with_object({}) { |(k, v), h|
+        if (!self.class.attribute_map.key?(k.to_sym))
+          self.additional_properties[k.to_sym] = v
+        else
+          h[k.to_sym] = v
+        end
+      }
+
+      if attributes.key?(:'dataset')
+        self.dataset = attributes[:'dataset']
+      end
+
+      if attributes.key?(:'dtype')
+        self.dtype = attributes[:'dtype']
+      end
+
+      if attributes.key?(:'namespace')
+        self.namespace = attributes[:'namespace']
+      end
+    end
+
+    # Returns the object in the form of hash, with additionalProperties support.
+    # @return [Hash] Returns the object in the form of hash
+    # @!visibility private
+    def to_hash
+      hash = {}
+      self.class.attribute_map.each_pair do |attr, param|
+        value = self.send(attr)
+        if value.nil?
+          is_nullable = self.class.openapi_nullable.include?(attr)
+          next if !is_nullable || (is_nullable && !instance_variable_defined?(:"@#{attr}"))
+        end
+
+        hash[param] = _to_hash(value)
+      end
+      self.additional_properties.each_pair do |attr, value|
+        hash[attr] = value
+      end
+      hash
+    end
+
+    # Checks equality by comparing each attribute.
+    # @param o [Object] Object to be compared
+    # @!visibility private
+    def ==(o)
+      return true if self.equal?(o)
+      self.class == o.class &&
+          dataset == o.dataset &&
+          dtype == o.dtype &&
+          namespace == o.namespace &&
+          additional_properties == o.additional_properties
+    end
+
+    # Calculates hash code according to all attributes.
+    # @return [Integer] Hash code
+    # @!visibility private
+    def hash
+      [dataset, dtype, namespace, additional_properties].hash
+    end
+  end
+end