From 067fa57ccd624f93d767ca1b6858717b75e33a1a Mon Sep 17 00:00:00 2001
From: dirrao <dirisala.gopal@gmail.com>
Date: Wed, 2 Oct 2024 07:43:03 +0530
Subject: [PATCH 1/2] Removed unused and deprecated custom dag dependancy
 detector from serilization tests

---
 tests/serialization/test_dag_serialization.py | 33 -------------------
 1 file changed, 33 deletions(-)

diff --git a/tests/serialization/test_dag_serialization.py b/tests/serialization/test_dag_serialization.py
index 6910514776afe..d063b3e78035a 100644
--- a/tests/serialization/test_dag_serialization.py
+++ b/tests/serialization/test_dag_serialization.py
@@ -65,12 +65,10 @@
 from airflow.providers.cncf.kubernetes.pod_generator import PodGenerator
 from airflow.security import permissions
 from airflow.sensors.bash import BashSensor
-from airflow.serialization.dag_dependency import DagDependency
 from airflow.serialization.enums import Encoding
 from airflow.serialization.json_schema import load_dag_schema_dict
 from airflow.serialization.serialized_objects import (
     BaseSerialization,
-    DependencyDetector,
     SerializedBaseOperator,
     SerializedDAG,
 )
@@ -87,42 +85,11 @@
 from tests.test_utils.timetables import CustomSerializationTimetable, cron_timetable, delta_timetable
 
 if TYPE_CHECKING:
-    from airflow.models.operator import Operator
     from airflow.utils.context import Context
 
 repo_root = Path(airflow.__file__).parent.parent
 
 
-class CustomDepOperator(BashOperator):
-    """
-    Used for testing custom dependency detector.
-
-    TODO: remove in Airflow 3.0
-    """
-
-
-class CustomDependencyDetector(DependencyDetector):
-    """
-    Prior to deprecation of custom dependency detector, the return type as DagDependency | None.
-    This class verifies that custom dependency detector classes which assume that return type will still
-    work until support for them is removed in 3.0.
-
-    TODO: remove in Airflow 3.0
-    """
-
-    @staticmethod
-    def detect_task_dependencies(task: Operator) -> DagDependency | None:  # type: ignore
-        if isinstance(task, CustomDepOperator):
-            return DagDependency(
-                source=task.dag_id,
-                target="nothing",
-                dependency_type="abc",
-                dependency_id=task.task_id,
-            )
-        else:
-            return DependencyDetector().detect_task_dependencies(task)  # type: ignore
-
-
 executor_config_pod = k8s.V1Pod(
     metadata=k8s.V1ObjectMeta(name="my-name"),
     spec=k8s.V1PodSpec(

From 62cd7fa2517e680b3847ae63fdc57af1907cba57 Mon Sep 17 00:00:00 2001
From: dirrao <dirisala.gopal@gmail.com>
Date: Fri, 4 Oct 2024 11:26:13 +0530
Subject: [PATCH 2/2] Added news fragment

---
 newsfragments/42640.significant.rst | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 newsfragments/42640.significant.rst

diff --git a/newsfragments/42640.significant.rst b/newsfragments/42640.significant.rst
new file mode 100644
index 0000000000000..a6f09eba8b437
--- /dev/null
+++ b/newsfragments/42640.significant.rst
@@ -0,0 +1 @@
+Removed deprecated custom dag dependency detector.