diff --git a/composer.lock b/composer.lock
index 3c949495861dabea55d0d9ccf45d46ebee83c80a..b1c3efbaedf772adda2ad484b95c81255550ad94 100644
--- a/composer.lock
+++ b/composer.lock
@@ -491,7 +491,7 @@
         },
         {
             "name": "drupal/core",
-            "version": "11.0.x-dev",
+            "version": "11.0.0-beta1",
             "dist": {
                 "type": "path",
                 "url": "core",
@@ -653,7 +653,7 @@
         },
         {
             "name": "drupal/core-project-message",
-            "version": "11.0.x-dev",
+            "version": "11.0.0-beta1",
             "dist": {
                 "type": "path",
                 "url": "composer/Plugin/ProjectMessage",
@@ -686,7 +686,7 @@
         },
         {
             "name": "drupal/core-vendor-hardening",
-            "version": "11.0.x-dev",
+            "version": "11.0.0-beta1",
             "dist": {
                 "type": "path",
                 "url": "composer/Plugin/VendorHardening",
@@ -9319,9 +9319,6 @@
     "aliases": [],
     "minimum-stability": "dev",
     "stability-flags": {
-        "drupal/core": 20,
-        "drupal/core-project-message": 20,
-        "drupal/core-vendor-hardening": 20,
         "symfony/browser-kit": 10,
         "symfony/css-selector": 10,
         "symfony/dom-crawler": 10,
diff --git a/composer/Metapackage/CoreRecommended/composer.json b/composer/Metapackage/CoreRecommended/composer.json
index 5d5321896c1d28f15ce7f702d381f8031546b29f..f813de8889a15da1df0126bd4119478d3ecf6c28 100644
--- a/composer/Metapackage/CoreRecommended/composer.json
+++ b/composer/Metapackage/CoreRecommended/composer.json
@@ -7,7 +7,7 @@
         "webflo/drupal-core-strict": "*"
     },
     "require": {
-        "drupal/core": "11.0.x-dev",
+        "drupal/core": "11.0.0-beta1",
         "asm89/stack-cors": "~v2.2.0",
         "composer/semver": "~3.4.0",
         "doctrine/annotations": "~2.0.1",
diff --git a/composer/Metapackage/PinnedDevDependencies/composer.json b/composer/Metapackage/PinnedDevDependencies/composer.json
index 5276333382918f396849950ad4f03230b004e594..0b0d2e4a7cbdccaf711114d5fbc2f79aff3ecfd1 100644
--- a/composer/Metapackage/PinnedDevDependencies/composer.json
+++ b/composer/Metapackage/PinnedDevDependencies/composer.json
@@ -7,7 +7,7 @@
         "webflo/drupal-core-require-dev": "*"
     },
     "require": {
-        "drupal/core": "11.0.x-dev",
+        "drupal/core": "11.0.0-beta1",
         "behat/mink": "v1.11.0",
         "behat/mink-browserkit-driver": "v2.2.0",
         "colinodell/psr-testlogger": "v1.3.0",
diff --git a/composer/Template/LegacyProject/composer.json b/composer/Template/LegacyProject/composer.json
index 8ec53f57580f7c33f8e2e53558865af87a31f84b..4b46e2afb8762bf4269f337cd5e3ddbd720a869e 100644
--- a/composer/Template/LegacyProject/composer.json
+++ b/composer/Template/LegacyProject/composer.json
@@ -27,7 +27,7 @@
     "conflict": {
         "drupal/drupal": "*"
     },
-    "minimum-stability": "dev",
+    "minimum-stability": "beta",
     "prefer-stable": true,
     "config": {
         "allow-plugins": {
diff --git a/composer/Template/RecommendedProject/composer.json b/composer/Template/RecommendedProject/composer.json
index bd988e768da8346d63ca8922f0b08b642c564ae8..a44414739d7a683094a0ab585b0f0a5657eb8675 100644
--- a/composer/Template/RecommendedProject/composer.json
+++ b/composer/Template/RecommendedProject/composer.json
@@ -26,7 +26,7 @@
     "conflict": {
         "drupal/drupal": "*"
     },
-    "minimum-stability": "dev",
+    "minimum-stability": "beta",
     "prefer-stable": true,
     "config": {
         "allow-plugins": {
diff --git a/core/lib/Drupal.php b/core/lib/Drupal.php
index 8ee0cc3772758d114e717714e8539bf25ce09f33..6e246e968182555a37e6a7a03b1f30cd3dabb6f0 100644
--- a/core/lib/Drupal.php
+++ b/core/lib/Drupal.php
@@ -75,7 +75,7 @@ class Drupal {
   /**
    * The current system version.
    */
-  const VERSION = '11.0.0-dev';
+  const VERSION = '11.0.0-beta1';
 
   /**
    * Core API compatibility.
diff --git a/core/lib/Drupal/Component/Annotation/composer.json b/core/lib/Drupal/Component/Annotation/composer.json
index 2912bffb07745b30f1921595c940949e7abc0e2b..5bc6f4e1c75b65dba250fd83bbdff7e13c9d4820 100644
--- a/core/lib/Drupal/Component/Annotation/composer.json
+++ b/core/lib/Drupal/Component/Annotation/composer.json
@@ -10,10 +10,10 @@
         "php": ">=8.3.0",
         "doctrine/annotations": "^2.0",
         "doctrine/lexer": "^2.0",
-        "drupal/core-class-finder": "11.0.x-dev",
-        "drupal/core-file-cache": "11.0.x-dev",
-        "drupal/core-plugin": "11.0.x-dev",
-        "drupal/core-utility": "11.0.x-dev"
+        "drupal/core-class-finder": "11.0.0-beta1",
+        "drupal/core-file-cache": "11.0.0-beta1",
+        "drupal/core-plugin": "11.0.0-beta1",
+        "drupal/core-utility": "11.0.0-beta1"
     },
     "autoload": {
         "psr-4": {
@@ -25,5 +25,5 @@
             "This file was partially generated automatically. See: https://www.drupal.org/node/3293830"
         ]
     },
-    "minimum-stability": "dev"
+    "minimum-stability": "beta"
 }
diff --git a/core/lib/Drupal/Component/Datetime/composer.json b/core/lib/Drupal/Component/Datetime/composer.json
index b63a2f0f2fb6040bf78dd39b2f363931f017adac..4c1223eee48571522e1f33f81d2e70caae1596ce 100644
--- a/core/lib/Drupal/Component/Datetime/composer.json
+++ b/core/lib/Drupal/Component/Datetime/composer.json
@@ -8,7 +8,7 @@
     "license": "GPL-2.0-or-later",
     "require": {
         "php": ">=8.3.0",
-        "drupal/core-utility": "11.0.x-dev"
+        "drupal/core-utility": "11.0.0-beta1"
     },
     "autoload": {
         "psr-4": {
@@ -20,5 +20,5 @@
             "This file was partially generated automatically. See: https://www.drupal.org/node/3293830"
         ]
     },
-    "minimum-stability": "dev"
+    "minimum-stability": "beta"
 }
diff --git a/core/lib/Drupal/Component/Discovery/composer.json b/core/lib/Drupal/Component/Discovery/composer.json
index d1ff18b20430e0e774d3fcfac74676c48a9ee121..cc0ea330cb9255b3b79012e8acb74efdf32a600b 100644
--- a/core/lib/Drupal/Component/Discovery/composer.json
+++ b/core/lib/Drupal/Component/Discovery/composer.json
@@ -8,8 +8,8 @@
     "license": "GPL-2.0-or-later",
     "require": {
         "php": ">=8.3.0",
-        "drupal/core-file-cache": "11.0.x-dev",
-        "drupal/core-serialization": "11.0.x-dev"
+        "drupal/core-file-cache": "11.0.0-beta1",
+        "drupal/core-serialization": "11.0.0-beta1"
     },
     "autoload": {
         "psr-4": {
@@ -21,5 +21,5 @@
             "This file was partially generated automatically. See: https://www.drupal.org/node/3293830"
         ]
     },
-    "minimum-stability": "dev"
+    "minimum-stability": "beta"
 }
diff --git a/core/lib/Drupal/Component/FrontMatter/composer.json b/core/lib/Drupal/Component/FrontMatter/composer.json
index 88a1475821d76aea3b14ff9335e2f30e9f730a8e..f7c110c125f578dca954d0d38bbde49186fbd9eb 100644
--- a/core/lib/Drupal/Component/FrontMatter/composer.json
+++ b/core/lib/Drupal/Component/FrontMatter/composer.json
@@ -8,7 +8,7 @@
     "license": "GPL-2.0-or-later",
     "require": {
         "php": ">=8.3.0",
-        "drupal/core-serialization": "11.0.x-dev"
+        "drupal/core-serialization": "11.0.0-beta1"
     },
     "autoload": {
         "psr-4": {
@@ -20,5 +20,5 @@
             "This file was partially generated automatically. See: https://www.drupal.org/node/3293830"
         ]
     },
-    "minimum-stability": "dev"
+    "minimum-stability": "beta"
 }
diff --git a/core/lib/Drupal/Component/Gettext/composer.json b/core/lib/Drupal/Component/Gettext/composer.json
index 40f05813106453f70ab5d1e0c3b8a3e4d2750bfb..48a21c491f5cb76de78ca5c16965467307420506 100644
--- a/core/lib/Drupal/Component/Gettext/composer.json
+++ b/core/lib/Drupal/Component/Gettext/composer.json
@@ -9,7 +9,7 @@
     },
     "require": {
         "php": ">=8.3.0",
-        "drupal/core-render": "11.0.x-dev"
+        "drupal/core-render": "11.0.0-beta1"
     },
     "autoload": {
         "psr-4": {
@@ -21,5 +21,5 @@
             "This file was partially generated automatically. See: https://www.drupal.org/node/3293830"
         ]
     },
-    "minimum-stability": "dev"
+    "minimum-stability": "beta"
 }
diff --git a/core/lib/Drupal/Component/PhpStorage/composer.json b/core/lib/Drupal/Component/PhpStorage/composer.json
index b480ffc394491f99612e6803b9f019f1c98ea00f..29bc949b020a858c9a7940044a344674ec2c9c6c 100644
--- a/core/lib/Drupal/Component/PhpStorage/composer.json
+++ b/core/lib/Drupal/Component/PhpStorage/composer.json
@@ -8,7 +8,7 @@
     "license": "GPL-2.0-or-later",
     "require": {
         "php": ">=8.3.0",
-        "drupal/core-file-security": "11.0.x-dev"
+        "drupal/core-file-security": "11.0.0-beta1"
     },
     "autoload": {
         "psr-4": {
@@ -20,5 +20,5 @@
             "This file was partially generated automatically. See: https://www.drupal.org/node/3293830"
         ]
     },
-    "minimum-stability": "dev"
+    "minimum-stability": "beta"
 }
diff --git a/core/lib/Drupal/Component/Render/composer.json b/core/lib/Drupal/Component/Render/composer.json
index 32fbf7ab17058deac6fd5e5f5a219b5978492968..58eacc547c817ffb1eeb1902afcbff5d4d9fe774 100644
--- a/core/lib/Drupal/Component/Render/composer.json
+++ b/core/lib/Drupal/Component/Render/composer.json
@@ -8,7 +8,7 @@
     "license": "GPL-2.0-or-later",
     "require": {
         "php": ">=8.3.0",
-        "drupal/core-utility": "11.0.x-dev"
+        "drupal/core-utility": "11.0.0-beta1"
     },
     "autoload": {
         "psr-4": {
@@ -20,5 +20,5 @@
             "This file was partially generated automatically. See: https://www.drupal.org/node/3293830"
         ]
     },
-    "minimum-stability": "dev"
+    "minimum-stability": "beta"
 }