diff --git a/CHANGELOG.md b/CHANGELOG.md
index b70b67ed..d7964273 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,13 @@
 
 [1]: https://pypi.org/project/google-api-core/#history
 
+## [2.7.0](https://github.com/googleapis/python-api-core/compare/v2.6.1...v2.7.0) (2022-03-08)
+
+
+### Features
+
+* expose extra fields in ExtendedOperation ([#351](https://github.com/googleapis/python-api-core/issues/351)) ([9abc6f4](https://github.com/googleapis/python-api-core/commit/9abc6f48f23c87b9771dca3c96b4f6af39620a50))
+
 ### [2.6.1](https://github.com/googleapis/python-api-core/compare/v2.6.0...v2.6.1) (2022-03-05)
 
 
diff --git a/google/api_core/extended_operation.py b/google/api_core/extended_operation.py
index 209f1213..cabae107 100644
--- a/google/api_core/extended_operation.py
+++ b/google/api_core/extended_operation.py
@@ -111,6 +111,9 @@ def error_code(self):
     def error_message(self):
         return self._extended_operation.error_message
 
+    def __getattr__(self, name):
+        return getattr(self._extended_operation, name)
+
     def done(self, retry=polling.DEFAULT_RETRY):
         self._refresh_and_update(retry)
         return self._extended_operation.done
diff --git a/google/api_core/version.py b/google/api_core/version.py
index 410cd066..d962613e 100644
--- a/google/api_core/version.py
+++ b/google/api_core/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "2.6.1"
+__version__ = "2.7.0"
diff --git a/tests/unit/test_extended_operation.py b/tests/unit/test_extended_operation.py
index 7fcebed8..9521fde8 100644
--- a/tests/unit/test_extended_operation.py
+++ b/tests/unit/test_extended_operation.py
@@ -37,6 +37,7 @@ class StatusCode(enum.Enum):
     status: StatusCode
     error_code: typing.Optional[int] = None
     error_message: typing.Optional[str] = None
+    armor_class: typing.Optional[int] = None
 
     # Note: in generated clients, this property must be generated for each
     # extended operation message type.
@@ -180,3 +181,23 @@ def test_error():
 
     with pytest.raises(exceptions.GoogleAPICallError):
         ex_op.result()
+
+
+def test_pass_through():
+    responses = [
+        CustomOperation(
+            name=TEST_OPERATION_NAME,
+            status=CustomOperation.StatusCode.PENDING,
+            armor_class=10,
+        ),
+        CustomOperation(
+            name=TEST_OPERATION_NAME,
+            status=CustomOperation.StatusCode.DONE,
+            armor_class=20,
+        ),
+    ]
+    ex_op, _, _ = make_extended_operation(responses)
+
+    assert ex_op.armor_class == 10
+    ex_op.result()
+    assert ex_op.armor_class == 20