diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index c7af9b7b20..b4c413218b 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-    ".": "1.103.0"
+    ".": "1.104.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4d8e6e19dd..bc469e827a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,43 @@
 # Changelog
 
+## [1.104.0](https://github.com/googleapis/python-aiplatform/compare/v1.103.0...v1.104.0) (2025-07-15)
+
+
+### Features
+
+* Add Aggregation Output in EvaluateDataset Get Operation Response ([43eee8d](https://github.com/googleapis/python-aiplatform/commit/43eee8de3a6cbcf5e74a1272565b5307e882d194))
+* Add API for Managed OSS Fine Tuning ([43eee8d](https://github.com/googleapis/python-aiplatform/commit/43eee8de3a6cbcf5e74a1272565b5307e882d194))
+* Add flexstart option to v1beta1 ([43eee8d](https://github.com/googleapis/python-aiplatform/commit/43eee8de3a6cbcf5e74a1272565b5307e882d194))
+* Expose task_unique_name in pipeline task details for pipeline rerun ([43eee8d](https://github.com/googleapis/python-aiplatform/commit/43eee8de3a6cbcf5e74a1272565b5307e882d194))
+* GenAI SDK client - Add support for context specs when creating agent engine instances ([8321826](https://github.com/googleapis/python-aiplatform/commit/8321826fe3c18b8b938861fe0930aa7ec4e97fa3))
+* GenAI SDK client(evals) - Add Generate Rubrics API config and internal method ([6727fb3](https://github.com/googleapis/python-aiplatform/commit/6727fb3761e91d32359e13b1c28494d2f16d165a))
+* GenAI SDK client(evals) - add rubric-based evaluation types ([df2390e](https://github.com/googleapis/python-aiplatform/commit/df2390e881b06629da29adb21a69c8cc68585aba))
+* GenAI SDK client(evals) - Add support for rubric-based metrics, and rubric customization eval workflow ([36bfda2](https://github.com/googleapis/python-aiplatform/commit/36bfda246eeb2b2a171cec9fb2602f4802601b7d))
+* Some comments changes in machine_resources.proto to v1beta1 ([43eee8d](https://github.com/googleapis/python-aiplatform/commit/43eee8de3a6cbcf5e74a1272565b5307e882d194))
+* Vertex AI Model Garden custom model deploy Public Preview ([43eee8d](https://github.com/googleapis/python-aiplatform/commit/43eee8de3a6cbcf5e74a1272565b5307e882d194))
+
+
+### Bug Fixes
+
+* GenAI SDK client(evals) - Handle optional pandas dependency in type hints ([cee8d8b](https://github.com/googleapis/python-aiplatform/commit/cee8d8b85f00efb259dbee5e2fa6d0cbed73e24c))
+
+
+### Documentation
+
+* A comment for field `boot_disk_type` in message `.google.cloud.aiplatform.v1beta1.DiskSpec` is changed ([43eee8d](https://github.com/googleapis/python-aiplatform/commit/43eee8de3a6cbcf5e74a1272565b5307e882d194))
+* A comment for field `learning_rate_multiplier` in message `.google.cloud.aiplatform.v1beta1.SupervisedHyperParameters` is changed ([43eee8d](https://github.com/googleapis/python-aiplatform/commit/43eee8de3a6cbcf5e74a1272565b5307e882d194))
+* A comment for field `machine_spec` in message `.google.cloud.aiplatform.v1beta1.DedicatedResources` is changed ([43eee8d](https://github.com/googleapis/python-aiplatform/commit/43eee8de3a6cbcf5e74a1272565b5307e882d194))
+* A comment for field `max_replica_count` in message `.google.cloud.aiplatform.v1beta1.AutomaticResources` is changed ([43eee8d](https://github.com/googleapis/python-aiplatform/commit/43eee8de3a6cbcf5e74a1272565b5307e882d194))
+* A comment for field `max_replica_count` in message `.google.cloud.aiplatform.v1beta1.DedicatedResources` is changed ([43eee8d](https://github.com/googleapis/python-aiplatform/commit/43eee8de3a6cbcf5e74a1272565b5307e882d194))
+* A comment for field `min_replica_count` in message `.google.cloud.aiplatform.v1beta1.AutomaticResources` is changed ([43eee8d](https://github.com/googleapis/python-aiplatform/commit/43eee8de3a6cbcf5e74a1272565b5307e882d194))
+* A comment for field `min_replica_count` in message `.google.cloud.aiplatform.v1beta1.DedicatedResources` is changed ([43eee8d](https://github.com/googleapis/python-aiplatform/commit/43eee8de3a6cbcf5e74a1272565b5307e882d194))
+* A comment for field `model` in message `.google.cloud.aiplatform.v1beta1.TunedModel` is changed ([43eee8d](https://github.com/googleapis/python-aiplatform/commit/43eee8de3a6cbcf5e74a1272565b5307e882d194))
+* A comment for field `required_replica_count` in message `.google.cloud.aiplatform.v1beta1.DedicatedResources` is changed ([43eee8d](https://github.com/googleapis/python-aiplatform/commit/43eee8de3a6cbcf5e74a1272565b5307e882d194))
+* A comment for field `training_dataset_uri` in message `.google.cloud.aiplatform.v1beta1.SupervisedTuningSpec` is changed ([43eee8d](https://github.com/googleapis/python-aiplatform/commit/43eee8de3a6cbcf5e74a1272565b5307e882d194))
+* A comment for field `validation_dataset_uri` in message `.google.cloud.aiplatform.v1beta1.SupervisedTuningSpec` is changed ([43eee8d](https://github.com/googleapis/python-aiplatform/commit/43eee8de3a6cbcf5e74a1272565b5307e882d194))
+* A comment for message `DedicatedResources` is changed ([43eee8d](https://github.com/googleapis/python-aiplatform/commit/43eee8de3a6cbcf5e74a1272565b5307e882d194))
+* Add constraints for AggregationMetric enum and default value for flip_enabled field in AutoraterConfig ([43eee8d](https://github.com/googleapis/python-aiplatform/commit/43eee8de3a6cbcf5e74a1272565b5307e882d194))
+
 ## [1.103.0](https://github.com/googleapis/python-aiplatform/compare/v1.102.0...v1.103.0) (2025-07-10)
 
 
diff --git a/google/cloud/aiplatform/gapic_version.py b/google/cloud/aiplatform/gapic_version.py
index aee4ab459f..355ce7b50e 100644
--- a/google/cloud/aiplatform/gapic_version.py
+++ b/google/cloud/aiplatform/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.103.0"  # {x-release-please-version}
+__version__ = "1.104.0"  # {x-release-please-version}
diff --git a/google/cloud/aiplatform/v1/schema/predict/instance/gapic_version.py b/google/cloud/aiplatform/v1/schema/predict/instance/gapic_version.py
index aee4ab459f..355ce7b50e 100644
--- a/google/cloud/aiplatform/v1/schema/predict/instance/gapic_version.py
+++ b/google/cloud/aiplatform/v1/schema/predict/instance/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.103.0"  # {x-release-please-version}
+__version__ = "1.104.0"  # {x-release-please-version}
diff --git a/google/cloud/aiplatform/v1/schema/predict/instance_v1/gapic_version.py b/google/cloud/aiplatform/v1/schema/predict/instance_v1/gapic_version.py
index aee4ab459f..355ce7b50e 100644
--- a/google/cloud/aiplatform/v1/schema/predict/instance_v1/gapic_version.py
+++ b/google/cloud/aiplatform/v1/schema/predict/instance_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.103.0"  # {x-release-please-version}
+__version__ = "1.104.0"  # {x-release-please-version}
diff --git a/google/cloud/aiplatform/v1/schema/predict/params/gapic_version.py b/google/cloud/aiplatform/v1/schema/predict/params/gapic_version.py
index aee4ab459f..355ce7b50e 100644
--- a/google/cloud/aiplatform/v1/schema/predict/params/gapic_version.py
+++ b/google/cloud/aiplatform/v1/schema/predict/params/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.103.0"  # {x-release-please-version}
+__version__ = "1.104.0"  # {x-release-please-version}
diff --git a/google/cloud/aiplatform/v1/schema/predict/params_v1/gapic_version.py b/google/cloud/aiplatform/v1/schema/predict/params_v1/gapic_version.py
index aee4ab459f..355ce7b50e 100644
--- a/google/cloud/aiplatform/v1/schema/predict/params_v1/gapic_version.py
+++ b/google/cloud/aiplatform/v1/schema/predict/params_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.103.0"  # {x-release-please-version}
+__version__ = "1.104.0"  # {x-release-please-version}
diff --git a/google/cloud/aiplatform/v1/schema/predict/prediction/gapic_version.py b/google/cloud/aiplatform/v1/schema/predict/prediction/gapic_version.py
index aee4ab459f..355ce7b50e 100644
--- a/google/cloud/aiplatform/v1/schema/predict/prediction/gapic_version.py
+++ b/google/cloud/aiplatform/v1/schema/predict/prediction/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.103.0"  # {x-release-please-version}
+__version__ = "1.104.0"  # {x-release-please-version}
diff --git a/google/cloud/aiplatform/v1/schema/predict/prediction_v1/gapic_version.py b/google/cloud/aiplatform/v1/schema/predict/prediction_v1/gapic_version.py
index aee4ab459f..355ce7b50e 100644
--- a/google/cloud/aiplatform/v1/schema/predict/prediction_v1/gapic_version.py
+++ b/google/cloud/aiplatform/v1/schema/predict/prediction_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.103.0"  # {x-release-please-version}
+__version__ = "1.104.0"  # {x-release-please-version}
diff --git a/google/cloud/aiplatform/v1/schema/trainingjob/definition/gapic_version.py b/google/cloud/aiplatform/v1/schema/trainingjob/definition/gapic_version.py
index aee4ab459f..355ce7b50e 100644
--- a/google/cloud/aiplatform/v1/schema/trainingjob/definition/gapic_version.py
+++ b/google/cloud/aiplatform/v1/schema/trainingjob/definition/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.103.0"  # {x-release-please-version}
+__version__ = "1.104.0"  # {x-release-please-version}
diff --git a/google/cloud/aiplatform/v1/schema/trainingjob/definition_v1/gapic_version.py b/google/cloud/aiplatform/v1/schema/trainingjob/definition_v1/gapic_version.py
index aee4ab459f..355ce7b50e 100644
--- a/google/cloud/aiplatform/v1/schema/trainingjob/definition_v1/gapic_version.py
+++ b/google/cloud/aiplatform/v1/schema/trainingjob/definition_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.103.0"  # {x-release-please-version}
+__version__ = "1.104.0"  # {x-release-please-version}
diff --git a/google/cloud/aiplatform/v1beta1/schema/predict/instance/gapic_version.py b/google/cloud/aiplatform/v1beta1/schema/predict/instance/gapic_version.py
index aee4ab459f..355ce7b50e 100644
--- a/google/cloud/aiplatform/v1beta1/schema/predict/instance/gapic_version.py
+++ b/google/cloud/aiplatform/v1beta1/schema/predict/instance/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.103.0"  # {x-release-please-version}
+__version__ = "1.104.0"  # {x-release-please-version}
diff --git a/google/cloud/aiplatform/v1beta1/schema/predict/instance_v1beta1/gapic_version.py b/google/cloud/aiplatform/v1beta1/schema/predict/instance_v1beta1/gapic_version.py
index aee4ab459f..355ce7b50e 100644
--- a/google/cloud/aiplatform/v1beta1/schema/predict/instance_v1beta1/gapic_version.py
+++ b/google/cloud/aiplatform/v1beta1/schema/predict/instance_v1beta1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.103.0"  # {x-release-please-version}
+__version__ = "1.104.0"  # {x-release-please-version}
diff --git a/google/cloud/aiplatform/v1beta1/schema/predict/params/gapic_version.py b/google/cloud/aiplatform/v1beta1/schema/predict/params/gapic_version.py
index aee4ab459f..355ce7b50e 100644
--- a/google/cloud/aiplatform/v1beta1/schema/predict/params/gapic_version.py
+++ b/google/cloud/aiplatform/v1beta1/schema/predict/params/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.103.0"  # {x-release-please-version}
+__version__ = "1.104.0"  # {x-release-please-version}
diff --git a/google/cloud/aiplatform/v1beta1/schema/predict/params_v1beta1/gapic_version.py b/google/cloud/aiplatform/v1beta1/schema/predict/params_v1beta1/gapic_version.py
index aee4ab459f..355ce7b50e 100644
--- a/google/cloud/aiplatform/v1beta1/schema/predict/params_v1beta1/gapic_version.py
+++ b/google/cloud/aiplatform/v1beta1/schema/predict/params_v1beta1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.103.0"  # {x-release-please-version}
+__version__ = "1.104.0"  # {x-release-please-version}
diff --git a/google/cloud/aiplatform/v1beta1/schema/predict/prediction/gapic_version.py b/google/cloud/aiplatform/v1beta1/schema/predict/prediction/gapic_version.py
index aee4ab459f..355ce7b50e 100644
--- a/google/cloud/aiplatform/v1beta1/schema/predict/prediction/gapic_version.py
+++ b/google/cloud/aiplatform/v1beta1/schema/predict/prediction/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.103.0"  # {x-release-please-version}
+__version__ = "1.104.0"  # {x-release-please-version}
diff --git a/google/cloud/aiplatform/v1beta1/schema/predict/prediction_v1beta1/gapic_version.py b/google/cloud/aiplatform/v1beta1/schema/predict/prediction_v1beta1/gapic_version.py
index aee4ab459f..355ce7b50e 100644
--- a/google/cloud/aiplatform/v1beta1/schema/predict/prediction_v1beta1/gapic_version.py
+++ b/google/cloud/aiplatform/v1beta1/schema/predict/prediction_v1beta1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.103.0"  # {x-release-please-version}
+__version__ = "1.104.0"  # {x-release-please-version}
diff --git a/google/cloud/aiplatform/v1beta1/schema/trainingjob/definition/gapic_version.py b/google/cloud/aiplatform/v1beta1/schema/trainingjob/definition/gapic_version.py
index aee4ab459f..355ce7b50e 100644
--- a/google/cloud/aiplatform/v1beta1/schema/trainingjob/definition/gapic_version.py
+++ b/google/cloud/aiplatform/v1beta1/schema/trainingjob/definition/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.103.0"  # {x-release-please-version}
+__version__ = "1.104.0"  # {x-release-please-version}
diff --git a/google/cloud/aiplatform/v1beta1/schema/trainingjob/definition_v1beta1/gapic_version.py b/google/cloud/aiplatform/v1beta1/schema/trainingjob/definition_v1beta1/gapic_version.py
index aee4ab459f..355ce7b50e 100644
--- a/google/cloud/aiplatform/v1beta1/schema/trainingjob/definition_v1beta1/gapic_version.py
+++ b/google/cloud/aiplatform/v1beta1/schema/trainingjob/definition_v1beta1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.103.0"  # {x-release-please-version}
+__version__ = "1.104.0"  # {x-release-please-version}
diff --git a/google/cloud/aiplatform/version.py b/google/cloud/aiplatform/version.py
index 5eadcf7592..33de5ce1f5 100644
--- a/google/cloud/aiplatform/version.py
+++ b/google/cloud/aiplatform/version.py
@@ -15,4 +15,4 @@
 # limitations under the License.
 #
 
-__version__ = "1.103.0"
+__version__ = "1.104.0"
diff --git a/google/cloud/aiplatform_v1/gapic_version.py b/google/cloud/aiplatform_v1/gapic_version.py
index aee4ab459f..355ce7b50e 100644
--- a/google/cloud/aiplatform_v1/gapic_version.py
+++ b/google/cloud/aiplatform_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.103.0"  # {x-release-please-version}
+__version__ = "1.104.0"  # {x-release-please-version}
diff --git a/google/cloud/aiplatform_v1beta1/gapic_version.py b/google/cloud/aiplatform_v1beta1/gapic_version.py
index aee4ab459f..355ce7b50e 100644
--- a/google/cloud/aiplatform_v1beta1/gapic_version.py
+++ b/google/cloud/aiplatform_v1beta1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.103.0"  # {x-release-please-version}
+__version__ = "1.104.0"  # {x-release-please-version}
diff --git a/pypi/_vertex_ai_placeholder/version.py b/pypi/_vertex_ai_placeholder/version.py
index 513c7149ee..a47bcbab6e 100644
--- a/pypi/_vertex_ai_placeholder/version.py
+++ b/pypi/_vertex_ai_placeholder/version.py
@@ -15,4 +15,4 @@
 # limitations under the License.
 #
 
-__version__ = "1.103.0"
+__version__ = "1.104.0"
diff --git a/samples/generated_samples/snippet_metadata_google.cloud.aiplatform.v1.json b/samples/generated_samples/snippet_metadata_google.cloud.aiplatform.v1.json
index 8dc7f2091f..cb600b6caa 100644
--- a/samples/generated_samples/snippet_metadata_google.cloud.aiplatform.v1.json
+++ b/samples/generated_samples/snippet_metadata_google.cloud.aiplatform.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-aiplatform",
-    "version": "0.1.0"
+    "version": "1.104.0"
   },
   "snippets": [
     {
diff --git a/samples/generated_samples/snippet_metadata_google.cloud.aiplatform.v1beta1.json b/samples/generated_samples/snippet_metadata_google.cloud.aiplatform.v1beta1.json
index a789b54e19..d5f3fc65d8 100644
--- a/samples/generated_samples/snippet_metadata_google.cloud.aiplatform.v1beta1.json
+++ b/samples/generated_samples/snippet_metadata_google.cloud.aiplatform.v1beta1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-aiplatform",
-    "version": "0.1.0"
+    "version": "1.104.0"
   },
   "snippets": [
     {