diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 1a934d8da..4012e7a3a 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "5.1.5"
+  ".": "5.1.6"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index f123126df..ddb9d12b6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,19 @@
 # Changelog
 
+## [5.1.6](https://github.com/shaka-project/shaka-player/compare/v5.1.5...v5.1.6) (2026-05-25)
+
+
+### Bug Fixes
+
+* Fix XML node attribute externs ([#10111](https://github.com/shaka-project/shaka-player/issues/10111)) ([7d1bec3](https://github.com/shaka-project/shaka-player/commit/7d1bec38e98bba1d65b599db26f634e33e56889b))
+* Map the "audio/x-mpegurl" MIME type as HLS ([#10114](https://github.com/shaka-project/shaka-player/issues/10114)) ([6dcf8ba](https://github.com/shaka-project/shaka-player/commit/6dcf8ba46372056f7c0bce2d7cebbca3449374f2))
+* **UI:** Fix blurry seek bar marks ([#10097](https://github.com/shaka-project/shaka-player/issues/10097)) ([a930801](https://github.com/shaka-project/shaka-player/commit/a930801fe8bb22f90f53b8dbf8532711eedeac9a))
+
+
+### Performance Improvements
+
+* **transmuxer:** Write nalu lengths directly into combined buffer in h265 ([#10119](https://github.com/shaka-project/shaka-player/issues/10119)) ([21f7ad8](https://github.com/shaka-project/shaka-player/commit/21f7ad8e36a0408403cf7184e2a76cb86816cc44))
+
 ## [5.1.5](https://github.com/shaka-project/shaka-player/compare/v5.1.4...v5.1.5) (2026-05-18)
 
 
diff --git a/lib/player.js b/lib/player.js
index fd82c4f8b..ade6f0fd8 100644
--- a/lib/player.js
+++ b/lib/player.js
@@ -9442,7 +9442,7 @@ shaka.Player.TYPICAL_BUFFERING_THRESHOLD_ = 0.5;
  * @export
  */
 // eslint-disable-next-line no-useless-concat
-shaka.Player.version = 'v5.1.5' + '-uncompiled';  // x-release-please-version
+shaka.Player.version = 'v5.1.6' + '-uncompiled';  // x-release-please-version
 
 // Initialize the deprecation system using the version string we just set
 // on the player.
diff --git a/package-lock.json b/package-lock.json
index 795aa5575..01f644d84 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "shaka-player",
-  "version": "5.1.5",
+  "version": "5.1.6",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "shaka-player",
-      "version": "5.1.5",
+      "version": "5.1.6",
       "license": "Apache-2.0",
       "devDependencies": {
         "@babel/core": "^7.17.5",
diff --git a/package.json b/package.json
index f8342dcdd..e6f2a087a 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "shaka-player",
   "description": "DASH/EME video player library",
-  "version": "5.1.5",
+  "version": "5.1.6",
   "homepage": "https://github.com/shaka-project/shaka-player",
   "author": "Google",
   "maintainers": [