diff --git a/airbyte-ci/connectors/metadata_service/lib/metadata_service/registry_entry.py b/airbyte-ci/connectors/metadata_service/lib/metadata_service/registry_entry.py
index 3c15ba74d08..612637849dc 100644
--- a/airbyte-ci/connectors/metadata_service/lib/metadata_service/registry_entry.py
+++ b/airbyte-ci/connectors/metadata_service/lib/metadata_service/registry_entry.py
@@ -533,7 +533,9 @@ def generate_and_persist_registry_entry(
 
     # For latest versions that are disabled, delete any existing registry entry to remove it from the registry
     if (
-        "-rc" not in metadata_dict["data"]["dockerImageTag"] and "-dev" not in metadata_dict["data"]["dockerImageTag"]
+        "-rc" not in metadata_dict["data"]["dockerImageTag"]
+        and "-dev" not in metadata_dict["data"]["dockerImageTag"]
+        and "-preview" not in metadata_dict["data"]["dockerImageTag"]
     ) and not metadata_dict["data"]["registryOverrides"][registry_type]["enabled"]:
         logger.info(
             f"{registry_type} is not enabled: deleting existing {registry_type} registry entry for {metadata_dict['data']['dockerRepository']} at latest path."
diff --git a/airbyte-ci/connectors/pipelines/pipelines/airbyte_ci/connectors/test/steps/python_connectors.py b/airbyte-ci/connectors/pipelines/pipelines/airbyte_ci/connectors/test/steps/python_connectors.py
index 817630b5a80..5bb2f962f3c 100644
--- a/airbyte-ci/connectors/pipelines/pipelines/airbyte_ci/connectors/test/steps/python_connectors.py
+++ b/airbyte-ci/connectors/pipelines/pipelines/airbyte_ci/connectors/test/steps/python_connectors.py
@@ -25,7 +25,7 @@ from pipelines.helpers.utils import raise_if_not_user
 from pipelines.models.steps import STEP_PARAMS, Step, StepResult
 
 # Pin the PyAirbyte version to avoid updates from breaking CI
-PYAIRBYTE_VERSION = "0.20.2"
+PYAIRBYTE_VERSION = "0.35.1"
 
 
 class PytestStep(Step, ABC):
diff --git a/airbyte-ci/connectors/pipelines/tests/test_tests/test_python_connectors.py b/airbyte-ci/connectors/pipelines/tests/test_tests/test_python_connectors.py
index 9a634b3402e..ada4a7a4e52 100644
--- a/airbyte-ci/connectors/pipelines/tests/test_tests/test_python_connectors.py
+++ b/airbyte-ci/connectors/pipelines/tests/test_tests/test_python_connectors.py
@@ -111,7 +111,6 @@ class TestUnitTests:
         ]
 
 
-@pytest.mark.skip(reason="PyAirbyte validation tests failing due to CDK module import issues in test environment")
 class TestPyAirbyteValidationTests:
     @pytest.fixture
     def compatible_connector(self):
@@ -157,7 +156,8 @@ class TestPyAirbyteValidationTests:
         result = await PyAirbyteValidation(context_for_valid_connector)._run(mocker.MagicMock())
         assert isinstance(result, StepResult)
         assert result.status == StepStatus.SUCCESS
-        assert "Getting `spec` output from connector..." in result.stdout
+        # Verify the connector name appears in output (stable across PyAirbyte versions)
+        assert context_for_valid_connector.connector.technical_name in (result.stdout + result.stderr)
 
     async def test__run_validation_skip_unpublished_connector(
         self,