diff --git a/CHANGELOG.md b/CHANGELOG.md
index f79dfa533..fc66a7097 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,25 @@
 
 [1]: https://www.npmjs.com/package/nodejs-spanner?activeTab=versions
 
+## [8.4.0](https://github.com/googleapis/nodejs-spanner/compare/v8.3.1...v8.4.0) (2026-01-09)
+
+
+### Features
+
+* Add a ClientContext field to Spanner requests ([#2493](https://github.com/googleapis/nodejs-spanner/issues/2493)) ([37504ad](https://github.com/googleapis/nodejs-spanner/commit/37504adcc37a7e95acfb2530313ff783d0c1fe7d))
+* Exposing total CPU related fields in AutoscalingConfig ([#2490](https://github.com/googleapis/nodejs-spanner/issues/2490)) ([508f0ff](https://github.com/googleapis/nodejs-spanner/commit/508f0ff95636b004f4200522018a199263eda8ca))
+* **spanner:** Support for type UUID ([#2482](https://github.com/googleapis/nodejs-spanner/issues/2482)) ([0047e94](https://github.com/googleapis/nodejs-spanner/commit/0047e9407d86521571626c69011b70307f83f8ba))
+
+
+### Bug Fixes
+
+* **deps:** Update dependency google-gax to v5.0.6 ([#2452](https://github.com/googleapis/nodejs-spanner/issues/2452)) ([f9e6b86](https://github.com/googleapis/nodejs-spanner/commit/f9e6b86ff4da03110642c17e5ebc8fac8d903d3a))
+* Flaky metric test ([#2472](https://github.com/googleapis/nodejs-spanner/issues/2472)) ([e169cc5](https://github.com/googleapis/nodejs-spanner/commit/e169cc5344d38812b1ebf20c7a987715a73d6f79))
+* Memory leak and deadlock due to error event in multiplexed session ([#2477](https://github.com/googleapis/nodejs-spanner/issues/2477)) ([c624619](https://github.com/googleapis/nodejs-spanner/commit/c624619a3960892b1d2d412ff79faa5a74de45df))
+* Presubmit failure for samples backups test ([#2492](https://github.com/googleapis/nodejs-spanner/issues/2492)) ([01eb3d5](https://github.com/googleapis/nodejs-spanner/commit/01eb3d5801ddb21517f185b9d585fbce4fa1475c))
+* Type check for key in deleteRows ([#2486](https://github.com/googleapis/nodejs-spanner/issues/2486)) ([7347a16](https://github.com/googleapis/nodejs-spanner/commit/7347a1628ad8635b8f84b36ad1d3850b78862ac7))
+* Type mismatch in Snapshot.run error handler ([#2487](https://github.com/googleapis/nodejs-spanner/issues/2487)) ([4ac0360](https://github.com/googleapis/nodejs-spanner/commit/4ac036047e3a03c073300f288c746389a38d8e42))
+
 ## [8.3.1](https://github.com/googleapis/nodejs-spanner/compare/v8.3.0...v8.3.1) (2025-11-19)
 
 
diff --git a/package.json b/package.json
index c742303e3..559492a07 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@google-cloud/spanner",
   "description": "Cloud Spanner Client Library for Node.js",
-  "version": "8.3.1",
+  "version": "8.4.0",
   "license": "Apache-2.0",
   "author": "Google Inc.",
   "engines": {
diff --git a/samples/package.json b/samples/package.json
index f111433ec..b1d936ffd 100644
--- a/samples/package.json
+++ b/samples/package.json
@@ -17,7 +17,7 @@
   "dependencies": {
     "@google-cloud/kms": "^5.0.0",
     "@google-cloud/precise-date": "^5.0.0",
-    "@google-cloud/spanner": "^8.3.1",
+    "@google-cloud/spanner": "^8.4.0",
     "protobufjs": "^7.0.0",
     "yargs": "^17.0.0"
   },