From 26c8a19e70a382fe76abc614892f39f1b8607629 Mon Sep 17 00:00:00 2001
From: "release-please[bot]"
 <55107282+release-please[bot]@users.noreply.github.com>
Date: Wed, 3 Jun 2026 21:32:47 +0000
Subject: [PATCH] chore(main): release 1.156.0

---
 .release-please-manifest.json                        |  2 +-
 CHANGELOG.md                                         | 12 ++++++++++++
 google/cloud/aiplatform/gapic_version.py             |  2 +-
 .../v1/schema/predict/instance/gapic_version.py      |  2 +-
 .../v1/schema/predict/instance_v1/gapic_version.py   |  2 +-
 .../v1/schema/predict/params/gapic_version.py        |  2 +-
 .../v1/schema/predict/params_v1/gapic_version.py     |  2 +-
 .../v1/schema/predict/prediction/gapic_version.py    |  2 +-
 .../v1/schema/predict/prediction_v1/gapic_version.py |  2 +-
 .../schema/trainingjob/definition/gapic_version.py   |  2 +-
 .../trainingjob/definition_v1/gapic_version.py       |  2 +-
 .../v1beta1/schema/predict/instance/gapic_version.py |  2 +-
 .../schema/predict/instance_v1beta1/gapic_version.py |  2 +-
 .../v1beta1/schema/predict/params/gapic_version.py   |  2 +-
 .../schema/predict/params_v1beta1/gapic_version.py   |  2 +-
 .../schema/predict/prediction/gapic_version.py       |  2 +-
 .../predict/prediction_v1beta1/gapic_version.py      |  2 +-
 .../schema/trainingjob/definition/gapic_version.py   |  2 +-
 .../trainingjob/definition_v1beta1/gapic_version.py  |  2 +-
 google/cloud/aiplatform/version.py                   |  2 +-
 google/cloud/aiplatform_v1/gapic_version.py          |  2 +-
 google/cloud/aiplatform_v1beta1/gapic_version.py     |  2 +-
 pypi/_vertex_ai_placeholder/version.py               |  2 +-
 .../snippet_metadata_google.cloud.aiplatform.v1.json |  2 +-
 ...pet_metadata_google.cloud.aiplatform.v1beta1.json |  2 +-
 25 files changed, 36 insertions(+), 24 deletions(-)

diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 4fb9c469c2..e391b8c242 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-    ".": "1.155.0"
+    ".": "1.156.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a0843db271..f550131f2d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Changelog
 
+## [1.156.0](https://github.com/googleapis/python-aiplatform/compare/v1.155.0...v1.156.0) (2026-06-03)
+
+
+### Features
+
+* GenAI SDK client - add rag.create_corpus() method ([a76a4b6](https://github.com/googleapis/python-aiplatform/commit/a76a4b6da5b76aaebec8b94162566b74eec770d2))
+
+
+### Bug Fixes
+
+* Update agent engine utils in vertex_ai and agentplatform to support python-a2a sdk 1.0 ([2faf725](https://github.com/googleapis/python-aiplatform/commit/2faf725c2220d42b141c97e8541143cc1c33579a))
+
 ## [1.155.0](https://github.com/googleapis/python-aiplatform/compare/v1.154.0...v1.155.0) (2026-06-02)
 
 
diff --git a/google/cloud/aiplatform/gapic_version.py b/google/cloud/aiplatform/gapic_version.py
index ae5af17331..b653928012 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__ = "1.155.0"  # {x-release-please-version}
+__version__ = "1.156.0"  # {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 ae5af17331..b653928012 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__ = "1.155.0"  # {x-release-please-version}
+__version__ = "1.156.0"  # {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 ae5af17331..b653928012 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__ = "1.155.0"  # {x-release-please-version}
+__version__ = "1.156.0"  # {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 ae5af17331..b653928012 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__ = "1.155.0"  # {x-release-please-version}
+__version__ = "1.156.0"  # {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 ae5af17331..b653928012 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__ = "1.155.0"  # {x-release-please-version}
+__version__ = "1.156.0"  # {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 ae5af17331..b653928012 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__ = "1.155.0"  # {x-release-please-version}
+__version__ = "1.156.0"  # {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 ae5af17331..b653928012 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__ = "1.155.0"  # {x-release-please-version}
+__version__ = "1.156.0"  # {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 ae5af17331..b653928012 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__ = "1.155.0"  # {x-release-please-version}
+__version__ = "1.156.0"  # {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 ae5af17331..b653928012 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__ = "1.155.0"  # {x-release-please-version}
+__version__ = "1.156.0"  # {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 ae5af17331..b653928012 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__ = "1.155.0"  # {x-release-please-version}
+__version__ = "1.156.0"  # {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 ae5af17331..b653928012 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__ = "1.155.0"  # {x-release-please-version}
+__version__ = "1.156.0"  # {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 ae5af17331..b653928012 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__ = "1.155.0"  # {x-release-please-version}
+__version__ = "1.156.0"  # {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 ae5af17331..b653928012 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__ = "1.155.0"  # {x-release-please-version}
+__version__ = "1.156.0"  # {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 ae5af17331..b653928012 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__ = "1.155.0"  # {x-release-please-version}
+__version__ = "1.156.0"  # {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 ae5af17331..b653928012 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__ = "1.155.0"  # {x-release-please-version}
+__version__ = "1.156.0"  # {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 ae5af17331..b653928012 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__ = "1.155.0"  # {x-release-please-version}
+__version__ = "1.156.0"  # {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 ae5af17331..b653928012 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__ = "1.155.0"  # {x-release-please-version}
+__version__ = "1.156.0"  # {x-release-please-version}
diff --git a/google/cloud/aiplatform/version.py b/google/cloud/aiplatform/version.py
index 830dde7ce5..0300f5d540 100644
--- a/google/cloud/aiplatform/version.py
+++ b/google/cloud/aiplatform/version.py
@@ -15,4 +15,4 @@
 # limitations under the License.
 #
 
-__version__ = "1.155.0"
+__version__ = "1.156.0"
diff --git a/google/cloud/aiplatform_v1/gapic_version.py b/google/cloud/aiplatform_v1/gapic_version.py
index ae5af17331..b653928012 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__ = "1.155.0"  # {x-release-please-version}
+__version__ = "1.156.0"  # {x-release-please-version}
diff --git a/google/cloud/aiplatform_v1beta1/gapic_version.py b/google/cloud/aiplatform_v1beta1/gapic_version.py
index ae5af17331..b653928012 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__ = "1.155.0"  # {x-release-please-version}
+__version__ = "1.156.0"  # {x-release-please-version}
diff --git a/pypi/_vertex_ai_placeholder/version.py b/pypi/_vertex_ai_placeholder/version.py
index 80e0a61211..28bc3a0414 100644
--- a/pypi/_vertex_ai_placeholder/version.py
+++ b/pypi/_vertex_ai_placeholder/version.py
@@ -15,4 +15,4 @@
 # limitations under the License.
 #
 
-__version__ = "1.155.0"
+__version__ = "1.156.0"
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 4ac547b0d0..e2b67f5cc6 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": "1.155.0"
+    "version": "1.156.0"
   },
   "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 e2816e5182..6b364dfb11 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": "1.155.0"
+    "version": "1.156.0"
   },
   "snippets": [
     {