diff --git a/.release-please-individual-manifest.json b/.release-please-individual-manifest.json
index e64004459cc8..104837ca24eb 100644
--- a/.release-please-individual-manifest.json
+++ b/.release-please-individual-manifest.json
@@ -2,7 +2,7 @@
   "packages/google-auth": "2.61.0",
   "packages/google-cloud-apptopology": "0.1.0",
   "packages/google-cloud-ftp": "0.1.0",
-  "packages/google-cloud-spanner": "3.71.0",
+  "packages/google-cloud-spanner": "3.72.0",
   "packages/google-cloud-spanner-dbapi-driver": "0.0.0",
   "packages/google-cloud-sql": "0.1.1",
   "packages/google-cloud-workloadidentity": "0.1.0",
diff --git a/librarian.yaml b/librarian.yaml
index bc99f4584d75..e224891bb138 100644
--- a/librarian.yaml
+++ b/librarian.yaml
@@ -1973,7 +1973,7 @@ libraries:
       metadata_name_override: source
       default_version: v1
   - name: google-cloud-spanner
-    version: 3.71.0
+    version: 3.72.0
     apis:
       - path: google/spanner/v1
       - path: google/spanner/admin/instance/v1
diff --git a/packages/google-cloud-spanner/CHANGELOG.md b/packages/google-cloud-spanner/CHANGELOG.md
index 415442924e7a..6d1b9c3b731d 100644
--- a/packages/google-cloud-spanner/CHANGELOG.md
+++ b/packages/google-cloud-spanner/CHANGELOG.md
@@ -4,6 +4,32 @@
 
 [1]: https://pypi.org/project/google-cloud-spanner/#history
 
+## [3.72.0](https://github.com/googleapis/google-cloud-python/compare/google-cloud-spanner-v3.71.0...google-cloud-spanner-v3.72.0) (2026-10-08)
+
+
+### Features
+
+* declare Python3.15 support ([8775794](https://github.com/googleapis/google-cloud-python/commit/8775794508e17150023c8e7152543410014458bf))
+* **spanner:** auth login support for Spanner Omni endpoints ([#18273](https://github.com/googleapis/google-cloud-python/issues/18273)) ([9e0548d](https://github.com/googleapis/google-cloud-python/commit/9e0548de1f8292968e0b0047ea5ddda175830908))
+
+
+### Bug Fixes
+
+* **spanner:** correctly wrap async streaming calls in metrics interceptor ([#18581](https://github.com/googleapis/google-cloud-python/issues/18581)) ([2d19b0a](https://github.com/googleapis/google-cloud-python/commit/2d19b0a652cbe79005da2b55b553d2c99fe95da9))
+* **spanner:** release transaction lock if inline begin fails ([#18409](https://github.com/googleapis/google-cloud-python/issues/18409)) ([dd24029](https://github.com/googleapis/google-cloud-python/commit/dd2402999bdaae9b96380486c8bfd7d89c612b31))
+* **spanner:** stop deleting multiplexed sessions on rotation and close ([#18332](https://github.com/googleapis/google-cloud-python/issues/18332)) ([c38e960](https://github.com/googleapis/google-cloud-python/commit/c38e960ae0349f9856c012c668c07fac24f8f0dc))
+
+
+### Performance Improvements
+
+* **spanner:** add fast-path for multiplexed session acquisition ([#18317](https://github.com/googleapis/google-cloud-python/issues/18317)) ([9569b39](https://github.com/googleapis/google-cloud-python/commit/9569b3989e94de9808c9343039535c2492204a72))
+* **spanner:** eliminate redundant tracing span in run_in_transaction ([#18357](https://github.com/googleapis/google-cloud-python/issues/18357)) ([181e26a](https://github.com/googleapis/google-cloud-python/commit/181e26a2475a028b2781caa75c10af0a99256431))
+* **spanner:** optimize query option merging and prevent in-place mutation ([#18358](https://github.com/googleapis/google-cloud-python/issues/18358)) ([8cb3c6a](https://github.com/googleapis/google-cloud-python/commit/8cb3c6a6556ccac9cef008bf34aee51aa70d8ead))
+* **spanner:** optimize query result decoding and type resolution ([#18330](https://github.com/googleapis/google-cloud-python/issues/18330)) ([ce72986](https://github.com/googleapis/google-cloud-python/commit/ce72986884938bceeabd251bfd0212f1760f83ff))
+* **spanner:** optimize row popping in StreamedResultSet ([#18316](https://github.com/googleapis/google-cloud-python/issues/18316)) ([e66103d](https://github.com/googleapis/google-cloud-python/commit/e66103d450af97e8aa51319e1e814e075d3a89c7))
+* **spanner:** short-circuit trace_call when tracing is inactive ([#18356](https://github.com/googleapis/google-cloud-python/issues/18356)) ([58031be](https://github.com/googleapis/google-cloud-python/commit/58031bed73f1d759081dbf9ffbe84fb4955c9ff7))
+* **spanner:** support PartialResultSet.last with background stream draining ([#18320](https://github.com/googleapis/google-cloud-python/issues/18320)) ([80efd63](https://github.com/googleapis/google-cloud-python/commit/80efd633fde5480d83c6889f8a3bf2e98a73370c))
+
 ## [3.71.0](https://github.com/googleapis/google-cloud-python/compare/google-cloud-spanner-v3.70.0...google-cloud-spanner-v3.71.0) (2026-09-03)
 
 
diff --git a/packages/google-cloud-spanner/google/cloud/spanner/gapic_version.py b/packages/google-cloud-spanner/google/cloud/spanner/gapic_version.py
index 261fe603a23f..0e5290b46c8b 100644
--- a/packages/google-cloud-spanner/google/cloud/spanner/gapic_version.py
+++ b/packages/google-cloud-spanner/google/cloud/spanner/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "3.71.0"  # {x-release-please-version}
+__version__ = "3.72.0"  # {x-release-please-version}
diff --git a/packages/google-cloud-spanner/google/cloud/spanner_admin_database/gapic_version.py b/packages/google-cloud-spanner/google/cloud/spanner_admin_database/gapic_version.py
index 261fe603a23f..0e5290b46c8b 100644
--- a/packages/google-cloud-spanner/google/cloud/spanner_admin_database/gapic_version.py
+++ b/packages/google-cloud-spanner/google/cloud/spanner_admin_database/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "3.71.0"  # {x-release-please-version}
+__version__ = "3.72.0"  # {x-release-please-version}
diff --git a/packages/google-cloud-spanner/google/cloud/spanner_admin_database_v1/gapic_version.py b/packages/google-cloud-spanner/google/cloud/spanner_admin_database_v1/gapic_version.py
index 261fe603a23f..0e5290b46c8b 100644
--- a/packages/google-cloud-spanner/google/cloud/spanner_admin_database_v1/gapic_version.py
+++ b/packages/google-cloud-spanner/google/cloud/spanner_admin_database_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "3.71.0"  # {x-release-please-version}
+__version__ = "3.72.0"  # {x-release-please-version}
diff --git a/packages/google-cloud-spanner/google/cloud/spanner_admin_instance/gapic_version.py b/packages/google-cloud-spanner/google/cloud/spanner_admin_instance/gapic_version.py
index 261fe603a23f..0e5290b46c8b 100644
--- a/packages/google-cloud-spanner/google/cloud/spanner_admin_instance/gapic_version.py
+++ b/packages/google-cloud-spanner/google/cloud/spanner_admin_instance/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "3.71.0"  # {x-release-please-version}
+__version__ = "3.72.0"  # {x-release-please-version}
diff --git a/packages/google-cloud-spanner/google/cloud/spanner_admin_instance_v1/gapic_version.py b/packages/google-cloud-spanner/google/cloud/spanner_admin_instance_v1/gapic_version.py
index 261fe603a23f..0e5290b46c8b 100644
--- a/packages/google-cloud-spanner/google/cloud/spanner_admin_instance_v1/gapic_version.py
+++ b/packages/google-cloud-spanner/google/cloud/spanner_admin_instance_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "3.71.0"  # {x-release-please-version}
+__version__ = "3.72.0"  # {x-release-please-version}
diff --git a/packages/google-cloud-spanner/google/cloud/spanner_dbapi/version.py b/packages/google-cloud-spanner/google/cloud/spanner_dbapi/version.py
index 2c62cddea2a1..5a8aa704d7d7 100644
--- a/packages/google-cloud-spanner/google/cloud/spanner_dbapi/version.py
+++ b/packages/google-cloud-spanner/google/cloud/spanner_dbapi/version.py
@@ -15,6 +15,6 @@
 import platform
 
 PY_VERSION = platform.python_version()
-__version__ = "3.71.0"
+__version__ = "3.72.0"
 VERSION = __version__
 DEFAULT_USER_AGENT = "gl-dbapi/" + VERSION
diff --git a/packages/google-cloud-spanner/google/cloud/spanner_v1/gapic_version.py b/packages/google-cloud-spanner/google/cloud/spanner_v1/gapic_version.py
index 261fe603a23f..0e5290b46c8b 100644
--- a/packages/google-cloud-spanner/google/cloud/spanner_v1/gapic_version.py
+++ b/packages/google-cloud-spanner/google/cloud/spanner_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "3.71.0"  # {x-release-please-version}
+__version__ = "3.72.0"  # {x-release-please-version}
diff --git a/packages/google-cloud-spanner/samples/generated_samples/snippet_metadata_google.spanner.admin.database.v1.json b/packages/google-cloud-spanner/samples/generated_samples/snippet_metadata_google.spanner.admin.database.v1.json
index fc9333a2036c..18d189ab3a63 100644
--- a/packages/google-cloud-spanner/samples/generated_samples/snippet_metadata_google.spanner.admin.database.v1.json
+++ b/packages/google-cloud-spanner/samples/generated_samples/snippet_metadata_google.spanner.admin.database.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-spanner",
-    "version": "3.71.0"
+    "version": "3.72.0"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-spanner/samples/generated_samples/snippet_metadata_google.spanner.admin.instance.v1.json b/packages/google-cloud-spanner/samples/generated_samples/snippet_metadata_google.spanner.admin.instance.v1.json
index 1bbb0613a0a2..1e80f720de26 100644
--- a/packages/google-cloud-spanner/samples/generated_samples/snippet_metadata_google.spanner.admin.instance.v1.json
+++ b/packages/google-cloud-spanner/samples/generated_samples/snippet_metadata_google.spanner.admin.instance.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-spanner",
-    "version": "3.71.0"
+    "version": "3.72.0"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-spanner/samples/generated_samples/snippet_metadata_google.spanner.v1.json b/packages/google-cloud-spanner/samples/generated_samples/snippet_metadata_google.spanner.v1.json
index 19ede04cf54c..3ba0c78fb28a 100644
--- a/packages/google-cloud-spanner/samples/generated_samples/snippet_metadata_google.spanner.v1.json
+++ b/packages/google-cloud-spanner/samples/generated_samples/snippet_metadata_google.spanner.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-spanner",
-    "version": "3.71.0"
+    "version": "3.72.0"
   },
   "snippets": [
     {