diff --git a/CHANGELOG.md b/CHANGELOG.md
index 66f7236319..503e61fa8a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,25 @@
 # Changelog
 
+## [4.6.6](https://github.com/shaka-project/shaka-player/compare/v4.6.5...v4.6.6) (2024-01-08)
+
+
+### Bug Fixes
+
+* APL set-top box wrongly identifies as an Apple device. ([#6026](https://github.com/shaka-project/shaka-player/issues/6026)) ([ca751a1](https://github.com/shaka-project/shaka-player/commit/ca751a100126aaff49af03b8171d355d3268a711))
+* avoid uiTextDisplayer.destroy crashing if called more than once ([#6022](https://github.com/shaka-project/shaka-player/issues/6022)) ([bb4f88b](https://github.com/shaka-project/shaka-player/commit/bb4f88b41652988b8397c86d22282db7530df54b))
+* ENCRYPTED CONTENT WITHOUT DRM INFO on comcast X1 due to safari blocklist ([#6034](https://github.com/shaka-project/shaka-player/issues/6034)) ([a75f6bc](https://github.com/shaka-project/shaka-player/commit/a75f6bc90e3be4045a4586667eb0720d753d3ff5))
+* Fix untrusted types in MediaTailorAdManager ([#5996](https://github.com/shaka-project/shaka-player/issues/5996)) ([18891ea](https://github.com/shaka-project/shaka-player/commit/18891ea0c1f8f16531faeb1b766f5f78697df498))
+* **HLS:** Fix clear init segment mapping ([#6000](https://github.com/shaka-project/shaka-player/issues/6000)) ([61d5298](https://github.com/shaka-project/shaka-player/commit/61d52984637c4327c33e44ee74c2b9728df0f8f0))
+* log prefetch miss for missing segments ([#6012](https://github.com/shaka-project/shaka-player/issues/6012)) ([1528eef](https://github.com/shaka-project/shaka-player/commit/1528eefd9b9320190b1dabfb5edf1735a22c2084))
+* **UI:** Fix disable PiP when using documentPictureInPicture ([#5992](https://github.com/shaka-project/shaka-player/issues/5992)) ([521bbe2](https://github.com/shaka-project/shaka-player/commit/521bbe25f0cf5503d9e7f2fb09416cc45741941d))
+
+
+### Performance Improvements
+
+* **mp4generator:** stop nesting concat in methods ([#6041](https://github.com/shaka-project/shaka-player/issues/6041)) ([2bc303b](https://github.com/shaka-project/shaka-player/commit/2bc303b325c7ed005df7a9176b988e9e3601176f))
+* **transmuxer:** various performance improvements ([#6003](https://github.com/shaka-project/shaka-player/issues/6003)) ([dd8e507](https://github.com/shaka-project/shaka-player/commit/dd8e50710905790987ae1dcb0516250218a338f9))
+* ts parser O(n^2) performance bug. ([#6035](https://github.com/shaka-project/shaka-player/issues/6035)) ([d3081f6](https://github.com/shaka-project/shaka-player/commit/d3081f656bda6be274a1f465d9fbde7126034d06))
+
 ## [4.6.5](https://github.com/shaka-project/shaka-player/compare/v4.6.4...v4.6.5) (2023-12-05)
 
 
diff --git a/lib/player.js b/lib/player.js
index dad56af279..453ce30912 100644
--- a/lib/player.js
+++ b/lib/player.js
@@ -6779,7 +6779,7 @@ shaka.Player.TYPICAL_BUFFERING_THRESHOLD_ = 0.5;
  * @export
  */
 // eslint-disable-next-line no-useless-concat
-shaka.Player.version = 'v4.6.5' + '-uncompiled';  // x-release-please-version
+shaka.Player.version = 'v4.6.6' + '-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 c4c2785722..48157d3a01 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "shaka-player",
-  "version": "4.6.5",
+  "version": "4.6.6",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "shaka-player",
-      "version": "4.6.5",
+      "version": "4.6.6",
       "license": "Apache-2.0",
       "dependencies": {
         "eme-encryption-scheme-polyfill": "^2.1.1"
diff --git a/package.json b/package.json
index 915fcf85e4..6b7bfdf4b1 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "shaka-player",
   "description": "DASH/EME video player library",
-  "version": "4.6.5",
+  "version": "4.6.6",
   "homepage": "https://github.com/shaka-project/shaka-player",
   "author": "Google",
   "maintainers": [