diff --git a/CHANGELOG.md b/CHANGELOG.md
index 56f4dc2b..3d6f0bfc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,9 +5,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## 1.6.21-alpha - unreleased
-
-This is an alpha version! The changes listed here are not final.
+## 1.6.21 - 2023-09-25
 
 ## 1.6.20 - 2023-09-19
 
diff --git a/composer.json b/composer.json
index b6066f35..543a0f2f 100644
--- a/composer.json
+++ b/composer.json
@@ -4,11 +4,11 @@
 	"type": "wordpress-plugin",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"automattic/jetpack-mu-wpcom": "^4.11.0-alpha"
+		"automattic/jetpack-mu-wpcom": "^4.11.0"
 	},
 	"require-dev": {
 		"yoast/phpunit-polyfills": "1.1.0",
-		"automattic/jetpack-changelogger": "^3.3.10-alpha"
+		"automattic/jetpack-changelogger": "^3.3.10"
 	},
 	"autoload": {
 		"classmap": [
@@ -23,6 +23,7 @@
 			"@composer phpunit"
 		]
 	},
+	"repositories": [],
 	"minimum-stability": "dev",
 	"prefer-stable": true,
 	"extra": {
@@ -37,6 +38,6 @@
 		]
 	},
 	"config": {
-		"autoloader-suffix": "d9d132a783958a00a2c7cccff60ca42d_jetpack_mu_wpcom_pluginⓥ1_6_21_alpha"
+		"autoloader-suffix": "d9d132a783958a00a2c7cccff60ca42d_jetpack_mu_wpcom_pluginⓥ1_6_21"
 	}
 }
diff --git a/composer.lock b/composer.lock
index e03ac690..ae2752ad 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,18 +4,24 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "ecd1fefe295d2ac5fd447cdb35d802c6",
+    "content-hash": "5aa96e9dc45d52f3d745bf4859153554",
     "packages": [
         {
             "name": "automattic/jetpack-mu-wpcom",
-            "version": "4.11.0-alpha.1695666572",
+            "version": "v4.11.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/Automattic/jetpack-mu-wpcom.git",
+                "reference": "57401050b38cb6a41f830baa2387f0fd0c0107df"
+            },
             "dist": {
-                "type": "path",
-                "url": "/tmp/jetpack-build/Automattic/jetpack-mu-wpcom",
-                "reference": "6ae813d70fca2c523f93df4d638c930fdb0ac3bd"
+                "type": "zip",
+                "url": "https://api.github.com/repos/Automattic/jetpack-mu-wpcom/zipball/57401050b38cb6a41f830baa2387f0fd0c0107df",
+                "reference": "57401050b38cb6a41f830baa2387f0fd0c0107df",
+                "shasum": ""
             },
             "require-dev": {
-                "automattic/jetpack-changelogger": "^3.3.10-alpha",
+                "automattic/jetpack-changelogger": "^3.3.10",
                 "automattic/wordbless": "0.4.2",
                 "yoast/phpunit-polyfills": "1.1.0"
             },
@@ -42,43 +48,31 @@
                     "src/"
                 ]
             },
-            "scripts": {
-                "phpunit": [
-                    "./vendor/phpunit/phpunit/phpunit --colors=always"
-                ],
-                "test-php": [
-                    "@composer phpunit"
-                ],
-                "build-production": [
-                    "echo 'Add your build step to composer.json, please!'"
-                ],
-                "build-development": [
-                    "echo 'Add your build step to composer.json, please!'"
-                ],
-                "post-install-cmd": [
-                    "WorDBless\\Composer\\InstallDropin::copy"
-                ],
-                "post-update-cmd": [
-                    "WorDBless\\Composer\\InstallDropin::copy"
-                ]
-            },
+            "notification-url": "https://packagist.org/downloads/",
             "license": [
                 "GPL-2.0-or-later"
             ],
             "description": "Enhances your site with features powered by WordPress.com",
-            "transport-options": {
-                "relative": false
-            }
+            "support": {
+                "source": "https://github.com/Automattic/jetpack-mu-wpcom/tree/v4.11.0"
+            },
+            "time": "2023-09-25T19:07:18+00:00"
         }
     ],
     "packages-dev": [
         {
             "name": "automattic/jetpack-changelogger",
-            "version": "3.3.10-alpha.1695663293",
+            "version": "v3.3.10",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/Automattic/jetpack-changelogger.git",
+                "reference": "8bdb83cf46a73e7d05efc381a16d86af87af011c"
+            },
             "dist": {
-                "type": "path",
-                "url": "/tmp/jetpack-build/Automattic/jetpack-changelogger",
-                "reference": "cacc0acc6045270285449cf8f5abb9eaaa9f9f80"
+                "type": "zip",
+                "url": "https://api.github.com/repos/Automattic/jetpack-changelogger/zipball/8bdb83cf46a73e7d05efc381a16d86af87af011c",
+                "reference": "8bdb83cf46a73e7d05efc381a16d86af87af011c",
+                "shasum": ""
             },
             "require": {
                 "php": ">=5.6",
@@ -109,30 +103,11 @@
             },
             "autoload": {
                 "psr-4": {
-                    "Automattic\\Jetpack\\Changelogger\\": "src",
-                    "Automattic\\Jetpack\\Changelog\\": "lib"
+                    "Automattic\\Jetpack\\Changelog\\": "lib",
+                    "Automattic\\Jetpack\\Changelogger\\": "src"
                 }
             },
-            "autoload-dev": {
-                "psr-4": {
-                    "Automattic\\Jetpack\\Changelogger\\Tests\\": "tests/php/includes/src",
-                    "Automattic\\Jetpack\\Changelog\\Tests\\": "tests/php/includes/lib"
-                }
-            },
-            "scripts": {
-                "phpunit": [
-                    "./vendor/phpunit/phpunit/phpunit --colors=always"
-                ],
-                "test-php": [
-                    "@composer phpunit"
-                ],
-                "post-install-cmd": [
-                    "[ -e vendor/bin/changelogger ] || { cd vendor/bin && ln -s ../../bin/changelogger; }"
-                ],
-                "post-update-cmd": [
-                    "[ -e vendor/bin/changelogger ] || { cd vendor/bin && ln -s ../../bin/changelogger; }"
-                ]
-            },
+            "notification-url": "https://packagist.org/downloads/",
             "license": [
                 "GPL-2.0-or-later"
             ],
@@ -143,9 +118,10 @@
                 "dev",
                 "keepachangelog"
             ],
-            "transport-options": {
-                "relative": false
-            }
+            "support": {
+                "source": "https://github.com/Automattic/jetpack-changelogger/tree/v3.3.10"
+            },
+            "time": "2023-09-25T19:06:31+00:00"
         },
         {
             "name": "doctrine/instantiator",
@@ -2766,10 +2742,7 @@
     ],
     "aliases": [],
     "minimum-stability": "dev",
-    "stability-flags": {
-        "automattic/jetpack-mu-wpcom": 20,
-        "automattic/jetpack-changelogger": 20
-    },
+    "stability-flags": [],
     "prefer-stable": true,
     "prefer-lowest": false,
     "platform": [],
diff --git a/mu-wpcom-plugin.php b/mu-wpcom-plugin.php
index ae8dbb98..672a6686 100644
--- a/mu-wpcom-plugin.php
+++ b/mu-wpcom-plugin.php
@@ -3,7 +3,7 @@
  *
  * Plugin Name: WordPress.com Features
  * Description: Test plugin for the jetpack-mu-wpcom package
- * Version: 1.6.21-alpha
+ * Version: 1.6.21
  * Author: Automattic
  * License: GPLv2 or later
  * Text Domain: jetpack-mu-wpcom-plugin
diff --git a/package.json b/package.json
index 93b728bd..3df7855e 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
 	"private": true,
 	"name": "@automattic/jetpack-mu-wpcom-plugin",
-	"version": "1.6.21-alpha",
+	"version": "1.6.21",
 	"description": "Test plugin for the jetpack-mu-wpcom package",
 	"homepage": "https://jetpack.com",
 	"bugs": {
diff --git a/vendor/autoload.php b/vendor/autoload.php
index 4a526e21..fb17e834 100644
--- a/vendor/autoload.php
+++ b/vendor/autoload.php
@@ -22,4 +22,4 @@
 
 require_once __DIR__ . '/composer/autoload_real.php';
 
-return ComposerAutoloaderInitd9d132a783958a00a2c7cccff60ca42d_jetpack_mu_wpcom_pluginⓥ1_6_21_alpha::getLoader();
+return ComposerAutoloaderInitd9d132a783958a00a2c7cccff60ca42d_jetpack_mu_wpcom_pluginⓥ1_6_21::getLoader();
diff --git a/vendor/automattic/jetpack-mu-wpcom/CHANGELOG.md b/vendor/automattic/jetpack-mu-wpcom/CHANGELOG.md
index 89cb0aa4..c111b86c 100644
--- a/vendor/automattic/jetpack-mu-wpcom/CHANGELOG.md
+++ b/vendor/automattic/jetpack-mu-wpcom/CHANGELOG.md
@@ -5,19 +5,15 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [4.11.0-alpha] - unreleased
-
-This is an alpha version! The changes listed here are not final.
-
+## [4.11.0] - 2023-09-25
 ### Added
-- Adds 100 Year Plan features, including the ability to set a legacy contact and enable locked mode.
-- Adds a feature to include helpers for the First Posts stream. In particular, an option is being added to the sync list.
-- Add the Calypso path for the setup_link_in_bio task
-- Support Videopress tasks on the Customer Home Launchpad
+- Adds 100 Year Plan features, including the ability to set a legacy contact and enable locked mode. [#33081]
+- Adds a feature to include helpers for the First Posts stream. In particular, an option is being added to the sync list. [#33253]
+- Add the Calypso path for the setup_link_in_bio task. [#32905]
+- Support Videopress tasks on the Customer Home Launchpad. [#33153]
 
 ### Fixed
-- Added check for jetpack sync option to only run on Atomic
-- Locked Mode: Now applies cap filter in REST API requests as well
+- Locked Mode: Now applies cap filter in REST API requests as well. [#33246]
 
 ## [4.10.0] - 2023-09-19
 ### Added
@@ -373,7 +369,7 @@ This is an alpha version! The changes listed here are not final.
 
 - Testing initial package release.
 
-[4.11.0-alpha]: https://github.com/Automattic/jetpack-mu-wpcom/compare/v4.10.0...v4.11.0-alpha
+[4.11.0]: https://github.com/Automattic/jetpack-mu-wpcom/compare/v4.10.0...v4.11.0
 [4.10.0]: https://github.com/Automattic/jetpack-mu-wpcom/compare/v4.9.0...v4.10.0
 [4.9.0]: https://github.com/Automattic/jetpack-mu-wpcom/compare/v4.8.0...v4.9.0
 [4.8.0]: https://github.com/Automattic/jetpack-mu-wpcom/compare/v4.7.0...v4.8.0
diff --git a/vendor/automattic/jetpack-mu-wpcom/composer.json b/vendor/automattic/jetpack-mu-wpcom/composer.json
index 5da8cdc7..39b58db7 100644
--- a/vendor/automattic/jetpack-mu-wpcom/composer.json
+++ b/vendor/automattic/jetpack-mu-wpcom/composer.json
@@ -6,7 +6,7 @@
 	"require": {},
 	"require-dev": {
 		"yoast/phpunit-polyfills": "1.1.0",
-		"automattic/jetpack-changelogger": "^3.3.10-alpha",
+		"automattic/jetpack-changelogger": "^3.3.10",
 		"automattic/wordbless": "0.4.2"
 	},
 	"suggest": {
diff --git a/vendor/automattic/jetpack-mu-wpcom/src/class-jetpack-mu-wpcom.php b/vendor/automattic/jetpack-mu-wpcom/src/class-jetpack-mu-wpcom.php
index b03e5d43..ff143ee4 100644
--- a/vendor/automattic/jetpack-mu-wpcom/src/class-jetpack-mu-wpcom.php
+++ b/vendor/automattic/jetpack-mu-wpcom/src/class-jetpack-mu-wpcom.php
@@ -14,7 +14,7 @@
  */
 class Jetpack_Mu_Wpcom {
 
-	const PACKAGE_VERSION = '4.11.0-alpha';
+	const PACKAGE_VERSION = '4.11.0';
 	const PKG_DIR         = __DIR__ . '/../';
 
 	/**
diff --git a/vendor/automattic/jetpack-mu-wpcom/src/features/first-posts-stream/first-posts-stream-helpers.php b/vendor/automattic/jetpack-mu-wpcom/src/features/first-posts-stream/first-posts-stream-helpers.php
index 7b136fd5..e5131598 100644
--- a/vendor/automattic/jetpack-mu-wpcom/src/features/first-posts-stream/first-posts-stream-helpers.php
+++ b/vendor/automattic/jetpack-mu-wpcom/src/features/first-posts-stream/first-posts-stream-helpers.php
@@ -12,15 +12,6 @@
  * @param array $allowed_options The allowed options.
  */
 function register_first_posts_stream_options_sync( $allowed_options ) {
-	// We are not either in Simple or Atomic.
-	if ( ! class_exists( 'Automattic\Jetpack\Status\Host' ) ) {
-		return $allowed_options;
-	}
-
-	if ( ! ( new Automattic\Jetpack\Status\Host() )->is_woa_site() ) {
-		return $allowed_options;
-	}
-
 	if ( ! is_array( $allowed_options ) ) {
 		return $allowed_options;
 	}
diff --git a/vendor/composer/autoload_real.php b/vendor/composer/autoload_real.php
index f4be67b1..fd696604 100644
--- a/vendor/composer/autoload_real.php
+++ b/vendor/composer/autoload_real.php
@@ -2,7 +2,7 @@
 
 // autoload_real.php @generated by Composer
 
-class ComposerAutoloaderInitd9d132a783958a00a2c7cccff60ca42d_jetpack_mu_wpcom_pluginⓥ1_6_21_alpha
+class ComposerAutoloaderInitd9d132a783958a00a2c7cccff60ca42d_jetpack_mu_wpcom_pluginⓥ1_6_21
 {
     private static $loader;
 
@@ -22,12 +22,12 @@ public static function getLoader()
             return self::$loader;
         }
 
-        spl_autoload_register(array('ComposerAutoloaderInitd9d132a783958a00a2c7cccff60ca42d_jetpack_mu_wpcom_pluginⓥ1_6_21_alpha', 'loadClassLoader'), true, true);
+        spl_autoload_register(array('ComposerAutoloaderInitd9d132a783958a00a2c7cccff60ca42d_jetpack_mu_wpcom_pluginⓥ1_6_21', 'loadClassLoader'), true, true);
         self::$loader = $loader = new \Composer\Autoload\ClassLoader(\dirname(__DIR__));
-        spl_autoload_unregister(array('ComposerAutoloaderInitd9d132a783958a00a2c7cccff60ca42d_jetpack_mu_wpcom_pluginⓥ1_6_21_alpha', 'loadClassLoader'));
+        spl_autoload_unregister(array('ComposerAutoloaderInitd9d132a783958a00a2c7cccff60ca42d_jetpack_mu_wpcom_pluginⓥ1_6_21', 'loadClassLoader'));
 
         require __DIR__ . '/autoload_static.php';
-        call_user_func(\Composer\Autoload\ComposerStaticInitd9d132a783958a00a2c7cccff60ca42d_jetpack_mu_wpcom_pluginⓥ1_6_21_alpha::getInitializer($loader));
+        call_user_func(\Composer\Autoload\ComposerStaticInitd9d132a783958a00a2c7cccff60ca42d_jetpack_mu_wpcom_pluginⓥ1_6_21::getInitializer($loader));
 
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
diff --git a/vendor/composer/autoload_static.php b/vendor/composer/autoload_static.php
index 4f95ca0d..edfede98 100644
--- a/vendor/composer/autoload_static.php
+++ b/vendor/composer/autoload_static.php
@@ -4,7 +4,7 @@
 
 namespace Composer\Autoload;
 
-class ComposerStaticInitd9d132a783958a00a2c7cccff60ca42d_jetpack_mu_wpcom_pluginⓥ1_6_21_alpha
+class ComposerStaticInitd9d132a783958a00a2c7cccff60ca42d_jetpack_mu_wpcom_pluginⓥ1_6_21
 {
     public static $classMap = array (
         'Automattic\\Jetpack\\Jetpack_Mu_Wpcom' => __DIR__ . '/..' . '/automattic/jetpack-mu-wpcom/src/class-jetpack-mu-wpcom.php',
@@ -18,7 +18,7 @@ class ComposerStaticInitd9d132a783958a00a2c7cccff60ca42d_jetpack_mu_wpcom_plugin
     public static function getInitializer(ClassLoader $loader)
     {
         return \Closure::bind(function () use ($loader) {
-            $loader->classMap = ComposerStaticInitd9d132a783958a00a2c7cccff60ca42d_jetpack_mu_wpcom_pluginⓥ1_6_21_alpha::$classMap;
+            $loader->classMap = ComposerStaticInitd9d132a783958a00a2c7cccff60ca42d_jetpack_mu_wpcom_pluginⓥ1_6_21::$classMap;
 
         }, null, ClassLoader::class);
     }
diff --git a/vendor/composer/installed.json b/vendor/composer/installed.json
index b167b96c..23a33ddd 100644
--- a/vendor/composer/installed.json
+++ b/vendor/composer/installed.json
@@ -2,21 +2,28 @@
     "packages": [
         {
             "name": "automattic/jetpack-mu-wpcom",
-            "version": "4.11.0-alpha.1695666572",
-            "version_normalized": "4.11.0.0-alpha1695666572",
+            "version": "v4.11.0",
+            "version_normalized": "4.11.0.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/Automattic/jetpack-mu-wpcom.git",
+                "reference": "57401050b38cb6a41f830baa2387f0fd0c0107df"
+            },
             "dist": {
-                "type": "path",
-                "url": "/tmp/jetpack-build/Automattic/jetpack-mu-wpcom",
-                "reference": "6ae813d70fca2c523f93df4d638c930fdb0ac3bd"
+                "type": "zip",
+                "url": "https://api.github.com/repos/Automattic/jetpack-mu-wpcom/zipball/57401050b38cb6a41f830baa2387f0fd0c0107df",
+                "reference": "57401050b38cb6a41f830baa2387f0fd0c0107df",
+                "shasum": ""
             },
             "require-dev": {
-                "automattic/jetpack-changelogger": "^3.3.10-alpha",
+                "automattic/jetpack-changelogger": "^3.3.10",
                 "automattic/wordbless": "0.4.2",
                 "yoast/phpunit-polyfills": "1.1.0"
             },
             "suggest": {
                 "automattic/jetpack-autoloader": "Allow for better interoperability with other plugins that use this package."
             },
+            "time": "2023-09-25T19:07:18+00:00",
             "type": "jetpack-library",
             "extra": {
                 "mirror-repo": "Automattic/jetpack-mu-wpcom",
@@ -38,32 +45,13 @@
                     "src/"
                 ]
             },
-            "scripts": {
-                "phpunit": [
-                    "./vendor/phpunit/phpunit/phpunit --colors=always"
-                ],
-                "test-php": [
-                    "@composer phpunit"
-                ],
-                "build-production": [
-                    "echo 'Add your build step to composer.json, please!'"
-                ],
-                "build-development": [
-                    "echo 'Add your build step to composer.json, please!'"
-                ],
-                "post-install-cmd": [
-                    "WorDBless\\Composer\\InstallDropin::copy"
-                ],
-                "post-update-cmd": [
-                    "WorDBless\\Composer\\InstallDropin::copy"
-                ]
-            },
+            "notification-url": "https://packagist.org/downloads/",
             "license": [
                 "GPL-2.0-or-later"
             ],
             "description": "Enhances your site with features powered by WordPress.com",
-            "transport-options": {
-                "relative": false
+            "support": {
+                "source": "https://github.com/Automattic/jetpack-mu-wpcom/tree/v4.11.0"
             },
             "install-path": "../automattic/jetpack-mu-wpcom"
         }
diff --git a/vendor/composer/installed.php b/vendor/composer/installed.php
index ea79f71d..01284ff1 100644
--- a/vendor/composer/installed.php
+++ b/vendor/composer/installed.php
@@ -11,9 +11,9 @@
     ),
     'versions' => array(
         'automattic/jetpack-mu-wpcom' => array(
-            'pretty_version' => '4.11.0-alpha.1695666572',
-            'version' => '4.11.0.0-alpha1695666572',
-            'reference' => '6ae813d70fca2c523f93df4d638c930fdb0ac3bd',
+            'pretty_version' => 'v4.11.0',
+            'version' => '4.11.0.0',
+            'reference' => '57401050b38cb6a41f830baa2387f0fd0c0107df',
             'type' => 'jetpack-library',
             'install_path' => __DIR__ . '/../automattic/jetpack-mu-wpcom',
             'aliases' => array(),