@@ -1,3 +1,3 @@
 {
-    ".": "2.2.0"
+    ".": "2.1.3"
 }
@@ -1,20 +1,5 @@
 # Changelog
 
-## [2.2.0](https://github.com/googleapis/python-aiplatform/compare/v2.1.3...v2.2.0) (2026-09-22)
-
-
-### Features
-
-* Update discovery doc ([6ad6fe8](https://github.com/googleapis/python-aiplatform/commit/6ad6fe8829c437b37012f2d0ff4f8a1ad2f95bac))
-
-
-### Bug Fixes
-
-* Allow unknown union variants when validating gaos responses in evals ([a9c4e6e](https://github.com/googleapis/python-aiplatform/commit/a9c4e6ee29111a57ae5fdb637da923b928280a2d))
-* Resolve vertexai.types against agentplatform.types ([5af2f8e](https://github.com/googleapis/python-aiplatform/commit/5af2f8e70784252a1ec50d59ce8805a01170acfe))
-* Resolve vertexai.types against agentplatform.types ([36a47bd](https://github.com/googleapis/python-aiplatform/commit/36a47bd6f43194333a6291af0b06b46ed8960d35))
-* Resolve vertexai.types against agentplatform.types ([75ecb3b](https://github.com/googleapis/python-aiplatform/commit/75ecb3b5c6cb610c8fec5c72c698996c0919e962))
-
 ## [2.1.3](https://github.com/googleapis/python-aiplatform/compare/v2.1.0...v2.1.3) (2026-09-15)
 
 
 
@@ -504,6 +504,13 @@ def _ReasoningEngine_from_vertex(
     if getv(from_object, ["trafficConfig"]) is not None:
         setv(to_object, ["traffic_config"], getv(from_object, ["trafficConfig"]))
 
+    if getv(from_object, ["revisionGarbageCollectionStrategy"]) is not None:
+        setv(
+            to_object,
+            ["revision_garbage_collection_strategy"],
+            getv(from_object, ["revisionGarbageCollectionStrategy"]),
+        )
+
     return to_object
 
 
 
@@ -484,6 +484,13 @@ def _ReasoningEngine_from_vertex(
     if getv(from_object, ["trafficConfig"]) is not None:
         setv(to_object, ["traffic_config"], getv(from_object, ["trafficConfig"]))
 
+    if getv(from_object, ["revisionGarbageCollectionStrategy"]) is not None:
+        setv(
+            to_object,
+            ["revision_garbage_collection_strategy"],
+            getv(from_object, ["revisionGarbageCollectionStrategy"]),
+        )
+
     return to_object
 
 
 
@@ -1682,6 +1682,12 @@
 from .common import ReasoningEngineContextSpecOrDict
 from .common import ReasoningEngineDict
 from .common import ReasoningEngineOrDict
+from .common import ReasoningEngineRevisionGarbageCollectionStrategy
+from .common import ReasoningEngineRevisionGarbageCollectionStrategyDict
+from .common import ReasoningEngineRevisionGarbageCollectionStrategyKeepNLatest
+from .common import ReasoningEngineRevisionGarbageCollectionStrategyKeepNLatestDict
+from .common import ReasoningEngineRevisionGarbageCollectionStrategyKeepNLatestOrDict
+from .common import ReasoningEngineRevisionGarbageCollectionStrategyOrDict
 from .common import ReasoningEngineRuntimeRevision
 from .common import ReasoningEngineRuntimeRevisionDict
 from .common import ReasoningEngineRuntimeRevisionOrDict
@@ -2888,6 +2894,12 @@
     "ReasoningEngineTrafficConfig",
     "ReasoningEngineTrafficConfigDict",
     "ReasoningEngineTrafficConfigOrDict",
+    "ReasoningEngineRevisionGarbageCollectionStrategyKeepNLatest",
+    "ReasoningEngineRevisionGarbageCollectionStrategyKeepNLatestDict",
+    "ReasoningEngineRevisionGarbageCollectionStrategyKeepNLatestOrDict",
+    "ReasoningEngineRevisionGarbageCollectionStrategy",
+    "ReasoningEngineRevisionGarbageCollectionStrategyDict",
+    "ReasoningEngineRevisionGarbageCollectionStrategyOrDict",
     "ReasoningEngine",
     "ReasoningEngineDict",
     "ReasoningEngineOrDict",
 
@@ -237,8 +237,8 @@ class State(_common.CaseInSensitiveEnum):
     """The unspecified state."""
     ACTIVE = "ACTIVE"
     """Is deployed and ready to be used."""
-    DEPRECATED = "DEPRECATED"
-    """Is deprecated, may not be used, only preserved for historical purposes."""
+    ARCHIVED = "ARCHIVED"
+    """Is archived and can no longer receive traffic, only preserved for historical purposes."""
 
 
 class MemoryType(_common.CaseInSensitiveEnum):
@@ -8906,6 +8906,56 @@ class ReasoningEngineTrafficConfigDict(TypedDict, total=False):
 ]
 
 
+class ReasoningEngineRevisionGarbageCollectionStrategyKeepNLatest(_common.BaseModel):
+    """Keeps only the latest N Runtime Revisions active."""
+
+    max_revisions: Optional[int] = Field(
+        default=None,
+        description="""Required. Specifies the maximum number of Runtime Revisions to keep active. If an update to Reasoning Engine would result in exceeding this number of active Runtime Revisions, a new Runtime Revision will be created, while the oldest Runtime Revision will be automatically deleted, providing it's not configured to serve traffic via `traffic_config`. If the oldest Runtime Revision is configured to serve traffic, the update will fail validation. No changes will be made to the Reasoning Engine, existing Runtime Revisions, and no new Runtime Revision will be created.""",
+    )
+
+
+class ReasoningEngineRevisionGarbageCollectionStrategyKeepNLatestDict(
+    TypedDict, total=False
+):
+    """Keeps only the latest N Runtime Revisions active."""
+
+    max_revisions: Optional[int]
+    """Required. Specifies the maximum number of Runtime Revisions to keep active. If an update to Reasoning Engine would result in exceeding this number of active Runtime Revisions, a new Runtime Revision will be created, while the oldest Runtime Revision will be automatically deleted, providing it's not configured to serve traffic via `traffic_config`. If the oldest Runtime Revision is configured to serve traffic, the update will fail validation. No changes will be made to the Reasoning Engine, existing Runtime Revisions, and no new Runtime Revision will be created."""
+
+
+ReasoningEngineRevisionGarbageCollectionStrategyKeepNLatestOrDict = Union[
+    ReasoningEngineRevisionGarbageCollectionStrategyKeepNLatest,
+    ReasoningEngineRevisionGarbageCollectionStrategyKeepNLatestDict,
+]
+
+
+class ReasoningEngineRevisionGarbageCollectionStrategy(_common.BaseModel):
+    """Configures garbage collection of Runtime Revisions."""
+
+    keep_n_latest: Optional[
+        ReasoningEngineRevisionGarbageCollectionStrategyKeepNLatest
+    ] = Field(
+        default=None,
+        description="""Optional. Keeps only the latest N Runtime Revisions active.""",
+    )
+
+
+class ReasoningEngineRevisionGarbageCollectionStrategyDict(TypedDict, total=False):
+    """Configures garbage collection of Runtime Revisions."""
+
+    keep_n_latest: Optional[
+        ReasoningEngineRevisionGarbageCollectionStrategyKeepNLatestDict
+    ]
+    """Optional. Keeps only the latest N Runtime Revisions active."""
+
+
+ReasoningEngineRevisionGarbageCollectionStrategyOrDict = Union[
+    ReasoningEngineRevisionGarbageCollectionStrategy,
+    ReasoningEngineRevisionGarbageCollectionStrategyDict,
+]
+
+
 class ReasoningEngine(_common.BaseModel):
     """An agent runtime."""
 
@@ -8951,6 +9001,12 @@ class ReasoningEngine(_common.BaseModel):
         default=None,
         description="""Optional. Traffic distribution configuration for the Reasoning Engine.""",
     )
+    revision_garbage_collection_strategy: Optional[
+        ReasoningEngineRevisionGarbageCollectionStrategy
+    ] = Field(
+        default=None,
+        description="""Optional. Configures garbage collection of Runtime Revisions.""",
+    )
 
 
 class ReasoningEngineDict(TypedDict, total=False):
@@ -8989,6 +9045,11 @@ class ReasoningEngineDict(TypedDict, total=False):
     traffic_config: Optional[ReasoningEngineTrafficConfigDict]
     """Optional. Traffic distribution configuration for the Reasoning Engine."""
 
+    revision_garbage_collection_strategy: Optional[
+        ReasoningEngineRevisionGarbageCollectionStrategyDict
+    ]
+    """Optional. Configures garbage collection of Runtime Revisions."""
+
 
 ReasoningEngineOrDict = Union[ReasoningEngine, ReasoningEngineDict]
 
 
@@ -14,4 +14,4 @@
 #
 """Version file for agentplatform."""
 
-__version__ = "2.2.0"
+__version__ = "2.1.3"
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "2.2.0"  # {x-release-please-version}
+__version__ = "2.1.3"  # {x-release-please-version}
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "2.2.0"  # {x-release-please-version}
+__version__ = "2.1.3"  # {x-release-please-version}
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "2.2.0"  # {x-release-please-version}
+__version__ = "2.1.3"  # {x-release-please-version}
Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,3 @@`
`1`	`1`	`{`
`2`		`- ".": "2.2.0"`
	`2`	`+ ".": "2.1.3"`
`3`	`3`	`}`
Original file line number	Diff line number	Diff line change
`@@ -14,4 +14,4 @@`
`14`	`14`	`#`
`15`	`15`	`"""Version file for agentplatform."""`
`16`	`16`
`17`		`-__version__ = "2.2.0"`
	`17`	`+__version__ = "2.1.3"`
Original file line number	Diff line number	Diff line change
`@@ -13,4 +13,4 @@`
`13`	`13`	`# See the License for the specific language governing permissions and`
`14`	`14`	`# limitations under the License.`
`15`	`15`	`#`
`16`		`-__version__ = "2.2.0" # {x-release-please-version}`
	`16`	`+__version__ = "2.1.3" # {x-release-please-version}`