diff --git a/composer.lock b/composer.lock
index d69c336519cbd7cc850125a1d7e03851fb6674da..a0d6ebf9a95bd82aa11de50daed1de772bce2605 100644
--- a/composer.lock
+++ b/composer.lock
@@ -523,7 +523,7 @@
         },
         {
             "name": "drupal/core",
-            "version": "9.5.0-beta2",
+            "version": "9.5.x-dev",
             "dist": {
                 "type": "path",
                 "url": "core",
@@ -687,7 +687,7 @@
         },
         {
             "name": "drupal/core-project-message",
-            "version": "9.5.0-beta2",
+            "version": "9.5.x-dev",
             "dist": {
                 "type": "path",
                 "url": "composer/Plugin/ProjectMessage",
@@ -720,7 +720,7 @@
         },
         {
             "name": "drupal/core-vendor-hardening",
-            "version": "9.5.0-beta2",
+            "version": "9.5.x-dev",
             "dist": {
                 "type": "path",
                 "url": "composer/Plugin/VendorHardening",
@@ -8144,7 +8144,11 @@
     ],
     "aliases": [],
     "minimum-stability": "dev",
-    "stability-flags": [],
+    "stability-flags": {
+        "drupal/core": 20,
+        "drupal/core-project-message": 20,
+        "drupal/core-vendor-hardening": 20
+    },
     "prefer-stable": true,
     "prefer-lowest": false,
     "platform": [],
diff --git a/composer/Metapackage/CoreRecommended/composer.json b/composer/Metapackage/CoreRecommended/composer.json
index 6185dfd47c3b888e1790a49d27775dcc1c86dde7..68d1a901e1ceeb0b89f520bf6d0ac4b68b5877cd 100644
--- a/composer/Metapackage/CoreRecommended/composer.json
+++ b/composer/Metapackage/CoreRecommended/composer.json
@@ -7,7 +7,7 @@
         "webflo/drupal-core-strict": "*"
     },
     "require": {
-        "drupal/core": "9.5.0-beta2",
+        "drupal/core": "9.5.x-dev",
         "asm89/stack-cors": "~1.3.0",
         "composer/semver": "~3.3.2",
         "doctrine/annotations": "~1.13.3",
diff --git a/composer/Metapackage/PinnedDevDependencies/composer.json b/composer/Metapackage/PinnedDevDependencies/composer.json
index afc190ed640b019f75c56fc3e0dec7c87348ac41..41638f6d68ecbe03033894e3acedc85bf5da9f70 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": "9.5.0-beta2",
+        "drupal/core": "9.5.x-dev",
         "behat/mink": "v1.10.0",
         "behat/mink-selenium2-driver": "v1.6.0",
         "composer/ca-bundle": "1.3.3",
diff --git a/composer/Template/LegacyProject/composer.json b/composer/Template/LegacyProject/composer.json
index 60e7e640cb9231a3e0db43ed4e38b2ea0a8547ce..abe13b818117d78cb9467bb7d993ce25727aacda 100644
--- a/composer/Template/LegacyProject/composer.json
+++ b/composer/Template/LegacyProject/composer.json
@@ -27,7 +27,7 @@
     "conflict": {
         "drupal/drupal": "*"
     },
-    "minimum-stability": "beta",
+    "minimum-stability": "dev",
     "prefer-stable": true,
     "config": {
         "allow-plugins": {
diff --git a/composer/Template/RecommendedProject/composer.json b/composer/Template/RecommendedProject/composer.json
index 6379fcb1f81d65e6b6eaf3ae7a70e41ff5acb49a..e58f96119598e57a6159af8ba8947073987fee16 100644
--- a/composer/Template/RecommendedProject/composer.json
+++ b/composer/Template/RecommendedProject/composer.json
@@ -26,7 +26,7 @@
     "conflict": {
         "drupal/drupal": "*"
     },
-    "minimum-stability": "beta",
+    "minimum-stability": "dev",
     "prefer-stable": true,
     "config": {
         "allow-plugins": {
diff --git a/core/lib/Drupal.php b/core/lib/Drupal.php
index 5bd70e7bd2c07a6b22bbb48f7dd81c5ab2d48255..37aa8a70b3ea10f3aaf556565765fe7947b4e5b9 100644
--- a/core/lib/Drupal.php
+++ b/core/lib/Drupal.php
@@ -75,7 +75,7 @@ class Drupal {
   /**
    * The current system version.
    */
-  const VERSION = '9.5.0-beta2';
+  const VERSION = '9.5.0-dev';
 
   /**
    * Core API compatibility.
diff --git a/core/lib/Drupal/Component/Annotation/composer.json b/core/lib/Drupal/Component/Annotation/composer.json
index 5dfc4de49c1efe017a2570cd49c09b5919d732a0..715dc842ea29eeb61169ddcfbb9dfec961d1e915 100644
--- a/core/lib/Drupal/Component/Annotation/composer.json
+++ b/core/lib/Drupal/Component/Annotation/composer.json
@@ -9,9 +9,9 @@
     "require": {
         "php": ">=7.3.0",
         "doctrine/annotations": "^1.13",
-        "drupal/core-file-cache": "9.5.0-beta2",
-        "drupal/core-plugin": "9.5.0-beta2",
-        "drupal/core-utility": "9.5.0-beta2"
+        "drupal/core-file-cache": "9.5.x-dev",
+        "drupal/core-plugin": "9.5.x-dev",
+        "drupal/core-utility": "9.5.x-dev"
     },
     "autoload": {
         "psr-4": {
@@ -23,5 +23,5 @@
             "This file was partially generated automatically. See: https://www.drupal.org/node/3293830"
         ]
     },
-    "minimum-stability": "beta"
+    "minimum-stability": "dev"
 }
diff --git a/core/lib/Drupal/Component/Datetime/composer.json b/core/lib/Drupal/Component/Datetime/composer.json
index 4fbae3b86878fc44f888bb9ba36a8df771277e6b..b966afd7af47fe44f79c615aa599d51ee84c00d9 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": ">=7.3.0",
-        "drupal/core-utility": "9.5.0-beta2"
+        "drupal/core-utility": "9.5.x-dev"
     },
     "autoload": {
         "psr-4": {
@@ -20,5 +20,5 @@
             "This file was partially generated automatically. See: https://www.drupal.org/node/3293830"
         ]
     },
-    "minimum-stability": "beta"
+    "minimum-stability": "dev"
 }
diff --git a/core/lib/Drupal/Component/Discovery/composer.json b/core/lib/Drupal/Component/Discovery/composer.json
index ed3e24817ee2e5162dc96cebe5b4efab997921f8..19320f541fcffac4c491cd9a001878d3bf3e6cb5 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": ">=7.3.0",
-        "drupal/core-file-cache": "9.5.0-beta2",
-        "drupal/core-serialization": "9.5.0-beta2"
+        "drupal/core-file-cache": "9.5.x-dev",
+        "drupal/core-serialization": "9.5.x-dev"
     },
     "autoload": {
         "psr-4": {
@@ -21,5 +21,5 @@
             "This file was partially generated automatically. See: https://www.drupal.org/node/3293830"
         ]
     },
-    "minimum-stability": "beta"
+    "minimum-stability": "dev"
 }
diff --git a/core/lib/Drupal/Component/FrontMatter/composer.json b/core/lib/Drupal/Component/FrontMatter/composer.json
index a8c726c1811320a0b153e829e9206b7fe5142e76..20fd06708a2594eaa447d482046d44e88bfa6f18 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": ">=7.3.0",
-        "drupal/core-serialization": "9.5.0-beta2"
+        "drupal/core-serialization": "9.5.x-dev"
     },
     "autoload": {
         "psr-4": {
@@ -20,5 +20,5 @@
             "This file was partially generated automatically. See: https://www.drupal.org/node/3293830"
         ]
     },
-    "minimum-stability": "beta"
+    "minimum-stability": "dev"
 }
diff --git a/core/lib/Drupal/Component/Gettext/composer.json b/core/lib/Drupal/Component/Gettext/composer.json
index 27338b574a9eb9b98e4d31d8ba14dd9ab7b97398..c9c4abb4bafb4c20815d654e872a8c57376174ff 100644
--- a/core/lib/Drupal/Component/Gettext/composer.json
+++ b/core/lib/Drupal/Component/Gettext/composer.json
@@ -9,7 +9,7 @@
     },
     "require": {
         "php": ">=7.3.0",
-        "drupal/core-render": "9.5.0-beta2"
+        "drupal/core-render": "9.5.x-dev"
     },
     "autoload": {
         "psr-4": {
@@ -21,5 +21,5 @@
             "This file was partially generated automatically. See: https://www.drupal.org/node/3293830"
         ]
     },
-    "minimum-stability": "beta"
+    "minimum-stability": "dev"
 }
diff --git a/core/lib/Drupal/Component/PhpStorage/composer.json b/core/lib/Drupal/Component/PhpStorage/composer.json
index 18ec30b60112e4b32bd75b2d39dc360bf26b2b8d..d00d06653b2693952db45fbcd90d48cc64a9bbf6 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": ">=7.3.0",
-        "drupal/core-file-security": "9.5.0-beta2"
+        "drupal/core-file-security": "9.5.x-dev"
     },
     "autoload": {
         "psr-4": {
@@ -20,5 +20,5 @@
             "This file was partially generated automatically. See: https://www.drupal.org/node/3293830"
         ]
     },
-    "minimum-stability": "beta"
+    "minimum-stability": "dev"
 }
diff --git a/core/lib/Drupal/Component/Render/composer.json b/core/lib/Drupal/Component/Render/composer.json
index 4c767ed1c346ff617b97f1822ce959a0e7b687f2..e4306683225e34caffa436a5d03f394133afa2ae 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": ">=7.3.0",
-        "drupal/core-utility": "9.5.0-beta2"
+        "drupal/core-utility": "9.5.x-dev"
     },
     "autoload": {
         "psr-4": {
@@ -20,5 +20,5 @@
             "This file was partially generated automatically. See: https://www.drupal.org/node/3293830"
         ]
     },
-    "minimum-stability": "beta"
+    "minimum-stability": "dev"
 }