diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index cc0de70237e..e6b175bad3f 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -27,7 +27,7 @@
   "handwritten/cloud-profiler": "8.0.1",
   "handwritten/datastore": "11.0.1",
   "handwritten/error-reporting": "4.0.1",
-  "handwritten/firestore": "9.0.1",
+  "handwritten/firestore": "9.1.0",
   "handwritten/google-cloud-dns": "6.0.1",
   "handwritten/logging": "12.0.1",
   "handwritten/logging-bunyan": "6.0.1",
diff --git a/changelog.json b/changelog.json
index 04f713e8b4d..c2c04bd246c 100644
--- a/changelog.json
+++ b/changelog.json
@@ -1,6 +1,29 @@
 {
   "repository": "googleapis/google-cloud-node",
   "entries": [
+    {
+      "changes": [
+        {
+          "type": "feat",
+          "sha": "084318e4922f48b5de9e135b292986ab26ccde85",
+          "message": "Support conversion and serialization for Temporal.Instant",
+          "issues": [],
+          "scope": "firestore"
+        },
+        {
+          "type": "fix",
+          "sha": "6540d48099f44cbdfc75d170bf8cd16e1ef5e7b5",
+          "message": "Configure grpc.use_local_subchannel_pool to prevent stream queuing",
+          "issues": [],
+          "scope": "firestore"
+        }
+      ],
+      "version": "9.1.0",
+      "language": "JAVASCRIPT",
+      "artifactName": "@google-cloud/firestore",
+      "id": "bf663894-fd8f-4a3a-9572-3c3ff471b8b1",
+      "createTime": "2026-09-08T18:10:04.350Z"
+    },
     {
       "changes": [
         {
@@ -94014,5 +94037,5 @@
       "createTime": "2023-01-28T04:18:24.718Z"
     }
   ],
-  "updateTime": "2026-09-08T16:07:57.731Z"
+  "updateTime": "2026-09-08T18:10:04.350Z"
 }
\ No newline at end of file
diff --git a/handwritten/firestore/CHANGELOG.md b/handwritten/firestore/CHANGELOG.md
index 039aa4a702a..58c2f39e995 100644
--- a/handwritten/firestore/CHANGELOG.md
+++ b/handwritten/firestore/CHANGELOG.md
@@ -5,6 +5,18 @@
 
 [1]: https://www.npmjs.com/package/@google-cloud/firestore?activeTab=versions
 
+## [9.1.0](https://github.com/googleapis/google-cloud-node/compare/firestore-v9.0.1...firestore-v9.1.0) (2026-09-08)
+
+
+### Features
+
+* **firestore:** Support conversion and serialization for Temporal.Instant ([084318e](https://github.com/googleapis/google-cloud-node/commit/084318e4922f48b5de9e135b292986ab26ccde85))
+
+
+### Bug Fixes
+
+* **firestore:** Configure grpc.use_local_subchannel_pool to prevent stream queuing ([6540d48](https://github.com/googleapis/google-cloud-node/commit/6540d48099f44cbdfc75d170bf8cd16e1ef5e7b5))
+
 ## [9.0.1](https://github.com/googleapis/google-cloud-node/compare/firestore-v9.0.0...firestore-v9.0.1) (2026-09-01)
 
 
diff --git a/handwritten/firestore/package.json b/handwritten/firestore/package.json
index fac5b5653e3..ac489c8d217 100644
--- a/handwritten/firestore/package.json
+++ b/handwritten/firestore/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@google-cloud/firestore",
   "description": "Firestore Client Library for Node.js",
-  "version": "9.0.1",
+  "version": "9.1.0",
   "license": "Apache-2.0",
   "author": "Google Inc.",
   "engines": {