diff --git a/.generator/schemas/v2/openapi.yaml b/.generator/schemas/v2/openapi.yaml
index 73c6d673719..b8661d93ff7 100644
--- a/.generator/schemas/v2/openapi.yaml
+++ b/.generator/schemas/v2/openapi.yaml
@@ -39639,6 +39639,8 @@ components:
           $ref: '#/components/schemas/ObservabilityPipelineBufferOptionsDiskType'
         when_full:
           $ref: '#/components/schemas/ObservabilityPipelineBufferOptionsWhenFull'
+      required:
+      - max_size
       type: object
     ObservabilityPipelineElasticsearchDestination:
       description: 'The `elasticsearch` destination writes logs to an Elasticsearch
@@ -40892,6 +40894,8 @@ components:
           $ref: '#/components/schemas/ObservabilityPipelineBufferOptionsMemoryType'
         when_full:
           $ref: '#/components/schemas/ObservabilityPipelineBufferOptionsWhenFull'
+      required:
+      - max_size
       type: object
     ObservabilityPipelineMemoryBufferSizeOptions:
       description: Options for configuring a memory buffer by queue length.
@@ -40905,6 +40909,8 @@ components:
           $ref: '#/components/schemas/ObservabilityPipelineBufferOptionsMemoryType'
         when_full:
           $ref: '#/components/schemas/ObservabilityPipelineBufferOptionsWhenFull'
+      required:
+      - max_events
       type: object
     ObservabilityPipelineMetadataEntry:
       description: A custom metadata entry.
diff --git a/lib/datadog_api_client/v2/models/observability_pipeline_disk_buffer_options.rb b/lib/datadog_api_client/v2/models/observability_pipeline_disk_buffer_options.rb
index 44be529f2c8..a6483f30349 100644
--- a/lib/datadog_api_client/v2/models/observability_pipeline_disk_buffer_options.rb
+++ b/lib/datadog_api_client/v2/models/observability_pipeline_disk_buffer_options.rb
@@ -22,7 +22,7 @@ class ObservabilityPipelineDiskBufferOptions
     include BaseGenericModel
 
     # Maximum size of the disk buffer.
-    attr_accessor :max_size
+    attr_reader :max_size
 
     # The type of the buffer that will be configured, a disk buffer.
     attr_accessor :type
@@ -83,6 +83,24 @@ def initialize(attributes = {})
       end
     end
 
+    # Check to see if the all the properties in the model are valid
+    # @return true if the model is valid
+    # @!visibility private
+    def valid?
+      return false if @max_size.nil?
+      true
+    end
+
+    # Custom attribute writer method with validation
+    # @param max_size [Object] Object to be assigned
+    # @!visibility private
+    def max_size=(max_size)
+      if max_size.nil?
+        fail ArgumentError, 'invalid value for "max_size", max_size cannot be nil.'
+      end
+      @max_size = max_size
+    end
+
     # Returns the object in the form of hash, with additionalProperties support.
     # @return [Hash] Returns the object in the form of hash
     # @!visibility private
diff --git a/lib/datadog_api_client/v2/models/observability_pipeline_memory_buffer_options.rb b/lib/datadog_api_client/v2/models/observability_pipeline_memory_buffer_options.rb
index 76360b8bc15..b518042c5ca 100644
--- a/lib/datadog_api_client/v2/models/observability_pipeline_memory_buffer_options.rb
+++ b/lib/datadog_api_client/v2/models/observability_pipeline_memory_buffer_options.rb
@@ -22,7 +22,7 @@ class ObservabilityPipelineMemoryBufferOptions
     include BaseGenericModel
 
     # Maximum size of the memory buffer.
-    attr_accessor :max_size
+    attr_reader :max_size
 
     # The type of the buffer that will be configured, a memory buffer.
     attr_accessor :type
@@ -83,6 +83,24 @@ def initialize(attributes = {})
       end
     end
 
+    # Check to see if the all the properties in the model are valid
+    # @return true if the model is valid
+    # @!visibility private
+    def valid?
+      return false if @max_size.nil?
+      true
+    end
+
+    # Custom attribute writer method with validation
+    # @param max_size [Object] Object to be assigned
+    # @!visibility private
+    def max_size=(max_size)
+      if max_size.nil?
+        fail ArgumentError, 'invalid value for "max_size", max_size cannot be nil.'
+      end
+      @max_size = max_size
+    end
+
     # Returns the object in the form of hash, with additionalProperties support.
     # @return [Hash] Returns the object in the form of hash
     # @!visibility private
diff --git a/lib/datadog_api_client/v2/models/observability_pipeline_memory_buffer_size_options.rb b/lib/datadog_api_client/v2/models/observability_pipeline_memory_buffer_size_options.rb
index f6d2b81f9e2..a7ae15372dc 100644
--- a/lib/datadog_api_client/v2/models/observability_pipeline_memory_buffer_size_options.rb
+++ b/lib/datadog_api_client/v2/models/observability_pipeline_memory_buffer_size_options.rb
@@ -22,7 +22,7 @@ class ObservabilityPipelineMemoryBufferSizeOptions
     include BaseGenericModel
 
     # Maximum events for the memory buffer.
-    attr_accessor :max_events
+    attr_reader :max_events
 
     # The type of the buffer that will be configured, a memory buffer.
     attr_accessor :type
@@ -83,6 +83,24 @@ def initialize(attributes = {})
       end
     end
 
+    # Check to see if the all the properties in the model are valid
+    # @return true if the model is valid
+    # @!visibility private
+    def valid?
+      return false if @max_events.nil?
+      true
+    end
+
+    # Custom attribute writer method with validation
+    # @param max_events [Object] Object to be assigned
+    # @!visibility private
+    def max_events=(max_events)
+      if max_events.nil?
+        fail ArgumentError, 'invalid value for "max_events", max_events cannot be nil.'
+      end
+      @max_events = max_events
+    end
+
     # Returns the object in the form of hash, with additionalProperties support.
     # @return [Hash] Returns the object in the form of hash
     # @!visibility private