diff --git a/.generated-info b/.generated-info
index 2cf735c049..fc57255cb5 100644
--- a/.generated-info
+++ b/.generated-info
@@ -1,4 +1,4 @@
 {
-  "spec_repo_commit": "a6f5281",
-  "generated": "2025-08-06 17:43:25.644"
+  "spec_repo_commit": "befda92",
+  "generated": "2025-08-06 19:11:29.999"
 }
diff --git a/.generator/schemas/v2/openapi.yaml b/.generator/schemas/v2/openapi.yaml
index d200d681df..6c6262eb25 100644
--- a/.generator/schemas/v2/openapi.yaml
+++ b/.generator/schemas/v2/openapi.yaml
@@ -28224,7 +28224,6 @@ components:
       required:
       - source
       - match_rules
-      - support_rules
       type: object
     ObservabilityPipelineParseGrokProcessorRuleMatchRule:
       description: 'Defines a Grok parsing rule, which extracts structured fields
diff --git a/src/datadog_api_client/v2/model/observability_pipeline_parse_grok_processor_rule.py b/src/datadog_api_client/v2/model/observability_pipeline_parse_grok_processor_rule.py
index 231e75e657..83bcc9725e 100644
--- a/src/datadog_api_client/v2/model/observability_pipeline_parse_grok_processor_rule.py
+++ b/src/datadog_api_client/v2/model/observability_pipeline_parse_grok_processor_rule.py
@@ -3,11 +3,13 @@
 # Copyright 2019-Present Datadog, Inc.
 from __future__ import annotations
 
-from typing import List, TYPE_CHECKING
+from typing import List, Union, TYPE_CHECKING
 
 from datadog_api_client.model_utils import (
     ModelNormal,
     cached_property,
+    unset,
+    UnsetType,
 )
 
 
@@ -46,7 +48,7 @@ def __init__(
         self_,
         match_rules: List[ObservabilityPipelineParseGrokProcessorRuleMatchRule],
         source: str,
-        support_rules: List[ObservabilityPipelineParseGrokProcessorRuleSupportRule],
+        support_rules: Union[List[ObservabilityPipelineParseGrokProcessorRuleSupportRule], UnsetType] = unset,
         **kwargs,
     ):
         """
@@ -61,10 +63,11 @@ def __init__(
         :type source: str
 
         :param support_rules: A list of Grok helper rules that can be referenced by the parsing rules.
-        :type support_rules: [ObservabilityPipelineParseGrokProcessorRuleSupportRule]
+        :type support_rules: [ObservabilityPipelineParseGrokProcessorRuleSupportRule], optional
         """
+        if support_rules is not unset:
+            kwargs["support_rules"] = support_rules
         super().__init__(kwargs)
 
         self_.match_rules = match_rules
         self_.source = source
-        self_.support_rules = support_rules