diff --git a/.release-please-individual-manifest.json b/.release-please-individual-manifest.json
index bcb90b13ccba..2ea5acd6303c 100644
--- a/.release-please-individual-manifest.json
+++ b/.release-please-individual-manifest.json
@@ -1,5 +1,5 @@
 {
-  "packages/google-cloud-apptopology": "0.0.0",
+  "packages/google-cloud-apptopology": "0.1.0",
   "packages/google-cloud-ftp": "0.1.0",
   "packages/google-cloud-workloadidentity": "0.1.0",
   "packages/google-crc32c": "1.8.0",
diff --git a/librarian.yaml b/librarian.yaml
index 303c48db3177..566f93f8e696 100644
--- a/librarian.yaml
+++ b/librarian.yaml
@@ -422,7 +422,7 @@ libraries:
     python:
       default_version: v1beta
   - name: google-cloud-apptopology
-    version: 0.0.0
+    version: 0.1.0
     apis:
       - path: google/cloud/apptopology/v1
     copyright_year: "2026"
diff --git a/packages/google-cloud-apptopology/CHANGELOG.md b/packages/google-cloud-apptopology/CHANGELOG.md
new file mode 100644
index 000000000000..a88796d631bb
--- /dev/null
+++ b/packages/google-cloud-apptopology/CHANGELOG.md
@@ -0,0 +1,8 @@
+# Changelog
+
+## 0.1.0 (2026-09-01)
+
+
+### Features
+
+* **google/cloud/apptopology/v1:** add google-cloud-apptopology ([#18241](https://github.com/googleapis/google-cloud-python/issues/18241)) ([d1f52d0](https://github.com/googleapis/google-cloud-python/commit/d1f52d00edbba54a002d71bc15f7429e89e5aec0))
diff --git a/packages/google-cloud-apptopology/google/cloud/apptopology/gapic_version.py b/packages/google-cloud-apptopology/google/cloud/apptopology/gapic_version.py
index e89a0031d71b..075b8773ece3 100644
--- a/packages/google-cloud-apptopology/google/cloud/apptopology/gapic_version.py
+++ b/packages/google-cloud-apptopology/google/cloud/apptopology/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "0.1.0"  # {x-release-please-version}
diff --git a/packages/google-cloud-apptopology/google/cloud/apptopology_v1/gapic_version.py b/packages/google-cloud-apptopology/google/cloud/apptopology_v1/gapic_version.py
index e89a0031d71b..075b8773ece3 100644
--- a/packages/google-cloud-apptopology/google/cloud/apptopology_v1/gapic_version.py
+++ b/packages/google-cloud-apptopology/google/cloud/apptopology_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "0.1.0"  # {x-release-please-version}
diff --git a/packages/google-cloud-apptopology/samples/generated_samples/snippet_metadata_google.cloud.apptopology.v1.json b/packages/google-cloud-apptopology/samples/generated_samples/snippet_metadata_google.cloud.apptopology.v1.json
index 9d75ab08a9bf..20fad543c3f2 100644
--- a/packages/google-cloud-apptopology/samples/generated_samples/snippet_metadata_google.cloud.apptopology.v1.json
+++ b/packages/google-cloud-apptopology/samples/generated_samples/snippet_metadata_google.cloud.apptopology.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-apptopology",
-    "version": "0.0.0"
+    "version": "0.1.0"
   },
   "snippets": [
     {