diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 17de9c3a771..b9379c6db02 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -33,7 +33,7 @@
   "handwritten/logging-bunyan": "6.1.0",
   "handwritten/logging-winston": "7.1.0",
   "handwritten/pubsub": "6.1.0",
-  "handwritten/spanner": "8.13.0",
+  "handwritten/spanner": "9.0.0",
   "handwritten/storage": "8.2.0",
   "packages/google-ads-admanager": "0.13.0",
   "packages/google-ads-datamanager": "1.1.0",
diff --git a/changelog.json b/changelog.json
index 6ea26dbbc7f..76bf2c2c8e9 100644
--- a/changelog.json
+++ b/changelog.json
@@ -1,6 +1,80 @@
 {
   "repository": "googleapis/google-cloud-node",
   "entries": [
+    {
+      "changes": [
+        {
+          "type": "feat",
+          "sha": "ecd5bfd0e8ad8d2cf3b9fe003f7e35f2bbd592f5",
+          "message": "Update cloud-spanner to minimum Node version of 22",
+          "issues": [
+            "9291"
+          ],
+          "scope": "Spanner",
+          "breakingChangeNote": "Update cloud-spanner to minimum Node version of 22 ([#9291](https://github.com/googleapis/google-cloud-node/issues/9291))"
+        },
+        {
+          "type": "perf",
+          "sha": "7085e03eb009a93b4368f5649472c0ac330d5a51",
+          "message": "Remove rest-parameter allocations in wrappedRequestFn",
+          "issues": [
+            "9365"
+          ],
+          "scope": "spanner"
+        },
+        {
+          "type": "perf",
+          "sha": "1b1b411769fc0847e23a52cadaf3c6225ae281ea",
+          "message": "Optimize codec.getType and reuse type singletons",
+          "issues": [
+            "9366"
+          ],
+          "scope": "spanner"
+        },
+        {
+          "type": "perf",
+          "sha": "dbbc55c508cf886863dff00e12ce362026515661",
+          "message": "Synchronous multiplexed session hand-off for non-stream callers",
+          "issues": [
+            "9362"
+          ],
+          "scope": "spanner"
+        },
+        {
+          "type": "perf",
+          "sha": "11c257b5a64b0d360f2c9d47c412e59e9fd5a756",
+          "message": "Disable gRPC channelz by default",
+          "issues": [
+            "9320"
+          ],
+          "scope": "spanner"
+        },
+        {
+          "type": "perf",
+          "sha": "a44180d659ff8734fcacd8e294fc9c8c0a181071",
+          "message": "Bypass gRPC message interception in metrics interceptor",
+          "issues": [
+            "9306"
+          ],
+          "scope": "spanner"
+        },
+        {
+          "type": "feat",
+          "sha": "ed3a44e7f396b1f71aa29c8291a740aaab4fef0b",
+          "message": "Upgrade OpenTelemetry to v2",
+          "issues": [
+            "9329"
+          ],
+          "scope": "Spanner",
+          "breakingChangeNote": "upgrade OpenTelemetry to v2 ([#9329](https://github.com/googleapis/google-cloud-node/issues/9329))"
+        }
+      ],
+      "version": "9.0.0",
+      "language": "JAVASCRIPT",
+      "artifactName": "@google-cloud/spanner",
+      "id": "e205caa0-2f3d-4787-a0d1-e65c87dc6727",
+      "createTime": "2026-09-18T13:12:38.821Z"
+    },
     {
       "changes": [
         {
@@ -95057,5 +95131,5 @@
       "createTime": "2023-01-28T04:18:24.718Z"
     }
   ],
-  "updateTime": "2026-09-17T14:33:17.947Z"
+  "updateTime": "2026-09-18T13:12:38.821Z"
 }
\ No newline at end of file
diff --git a/handwritten/spanner/CHANGELOG.md b/handwritten/spanner/CHANGELOG.md
index dc2194fa96d..a60a30e6413 100644
--- a/handwritten/spanner/CHANGELOG.md
+++ b/handwritten/spanner/CHANGELOG.md
@@ -5,6 +5,28 @@
 
 [1]: https://www.npmjs.com/package/nodejs-spanner?activeTab=versions
 
+## [9.0.0](https://github.com/googleapis/google-cloud-node/compare/spanner-v8.13.0...spanner-v9.0.0) (2026-09-18)
+
+
+### ⚠ BREAKING CHANGES
+
+* **Spanner:** Update cloud-spanner to minimum Node version of 22 ([#9291](https://github.com/googleapis/google-cloud-node/issues/9291))
+* **Spanner:** upgrade OpenTelemetry to v2 ([#9329](https://github.com/googleapis/google-cloud-node/issues/9329))
+
+### Features
+
+* **Spanner:** Update cloud-spanner to minimum Node version of 22 ([#9291](https://github.com/googleapis/google-cloud-node/issues/9291)) ([ecd5bfd](https://github.com/googleapis/google-cloud-node/commit/ecd5bfd0e8ad8d2cf3b9fe003f7e35f2bbd592f5))
+* **Spanner:** Upgrade OpenTelemetry to v2 ([#9329](https://github.com/googleapis/google-cloud-node/issues/9329)) ([ed3a44e](https://github.com/googleapis/google-cloud-node/commit/ed3a44e7f396b1f71aa29c8291a740aaab4fef0b))
+
+
+### Performance Improvements
+
+* **spanner:** Bypass gRPC message interception in metrics interceptor ([#9306](https://github.com/googleapis/google-cloud-node/issues/9306)) ([a44180d](https://github.com/googleapis/google-cloud-node/commit/a44180d659ff8734fcacd8e294fc9c8c0a181071))
+* **spanner:** Disable gRPC channelz by default ([#9320](https://github.com/googleapis/google-cloud-node/issues/9320)) ([11c257b](https://github.com/googleapis/google-cloud-node/commit/11c257b5a64b0d360f2c9d47c412e59e9fd5a756))
+* **spanner:** Optimize codec.getType and reuse type singletons ([#9366](https://github.com/googleapis/google-cloud-node/issues/9366)) ([1b1b411](https://github.com/googleapis/google-cloud-node/commit/1b1b411769fc0847e23a52cadaf3c6225ae281ea))
+* **spanner:** Remove rest-parameter allocations in wrappedRequestFn ([#9365](https://github.com/googleapis/google-cloud-node/issues/9365)) ([7085e03](https://github.com/googleapis/google-cloud-node/commit/7085e03eb009a93b4368f5649472c0ac330d5a51))
+* **spanner:** Synchronous multiplexed session hand-off for non-stream callers ([#9362](https://github.com/googleapis/google-cloud-node/issues/9362)) ([dbbc55c](https://github.com/googleapis/google-cloud-node/commit/dbbc55c508cf886863dff00e12ce362026515661))
+
 ## [8.13.0](https://github.com/googleapis/google-cloud-node/compare/spanner-v8.12.0...spanner-v8.13.0) (2026-09-14)
 
 
diff --git a/handwritten/spanner/package.json b/handwritten/spanner/package.json
index 801c4481177..8f849dc627c 100644
--- a/handwritten/spanner/package.json
+++ b/handwritten/spanner/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@google-cloud/spanner",
   "description": "Cloud Spanner Client Library for Node.js",
-  "version": "8.13.0",
+  "version": "9.0.0",
   "license": "Apache-2.0",
   "author": "Google Inc.",
   "engines": {