diff --git a/typo3/sysext/adminpanel/composer.json b/typo3/sysext/adminpanel/composer.json
index f334d49c5cfdb6c8cd7d3a836c42cc79f7e7c286..f0283f4d3c76a0d86561b255ec621a2f70de19ce 100644
--- a/typo3/sysext/adminpanel/composer.json
+++ b/typo3/sysext/adminpanel/composer.json
@@ -23,10 +23,10 @@
 		"psr/http-server-handler": "^1.0",
 		"psr/http-server-middleware": "^1.0",
 		"symfony/var-dumper": "^6.4 || ^7.0",
-		"typo3/cms-backend": "12.4.*@dev",
-		"typo3/cms-core": "12.4.*@dev",
-		"typo3/cms-fluid": "12.4.*@dev",
-		"typo3/cms-frontend": "12.4.*@dev",
+		"typo3/cms-backend": "12.4.12",
+		"typo3/cms-core": "12.4.12",
+		"typo3/cms-fluid": "12.4.12",
+		"typo3/cms-frontend": "12.4.12",
 		"typo3fluid/fluid": "^2.9.2"
 	},
 	"conflict": {
diff --git a/typo3/sysext/backend/Tests/Functional/Fixtures/Extensions/test_tca_select_items/composer.json b/typo3/sysext/backend/Tests/Functional/Fixtures/Extensions/test_tca_select_items/composer.json
index bd77f875881afc3b377dd7553bf43e6212802108..16972c6ef10caf39fdf7c7ab712fb3086b319b38 100644
--- a/typo3/sysext/backend/Tests/Functional/Fixtures/Extensions/test_tca_select_items/composer.json
+++ b/typo3/sysext/backend/Tests/Functional/Fixtures/Extensions/test_tca_select_items/composer.json
@@ -4,7 +4,7 @@
 	"description": "TcaSelectItems Test",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/backend/Tests/Functional/Fixtures/Extensions/test_tca_select_tree_items/composer.json b/typo3/sysext/backend/Tests/Functional/Fixtures/Extensions/test_tca_select_tree_items/composer.json
index 8a20e15e145d2bf1b04cde84e5310ed92c7e46e3..54ab09304377d76768815d00ba9ab92d1e0ac4d0 100644
--- a/typo3/sysext/backend/Tests/Functional/Fixtures/Extensions/test_tca_select_tree_items/composer.json
+++ b/typo3/sysext/backend/Tests/Functional/Fixtures/Extensions/test_tca_select_tree_items/composer.json
@@ -4,7 +4,7 @@
 	"description": "TcaSelectTreeItems Test",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/backend/Tests/Functional/SiteConfiguration/Fixtures/Extensions/test_configoverride_first/composer.json b/typo3/sysext/backend/Tests/Functional/SiteConfiguration/Fixtures/Extensions/test_configoverride_first/composer.json
index a383f7cf3eb2cbfba799e99c8694fa2135dd4dc9..8caa335bdcb985918a946928dc61418279c1f312 100644
--- a/typo3/sysext/backend/Tests/Functional/SiteConfiguration/Fixtures/Extensions/test_configoverride_first/composer.json
+++ b/typo3/sysext/backend/Tests/Functional/SiteConfiguration/Fixtures/Extensions/test_configoverride_first/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for site config override",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/backend/Tests/Functional/SiteConfiguration/Fixtures/Extensions/test_configoverride_second/composer.json b/typo3/sysext/backend/Tests/Functional/SiteConfiguration/Fixtures/Extensions/test_configoverride_second/composer.json
index 7de1a78ad3b56b85c474ef12077b321a13661ae0..03bbdb9144aaed19aa8e00e4f72c1c5920dbaf0b 100644
--- a/typo3/sysext/backend/Tests/Functional/SiteConfiguration/Fixtures/Extensions/test_configoverride_second/composer.json
+++ b/typo3/sysext/backend/Tests/Functional/SiteConfiguration/Fixtures/Extensions/test_configoverride_second/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for site config override",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"suggest": {
 		"typo3tests/config-override-first": "12.4.*@dev"
diff --git a/typo3/sysext/backend/Tests/Functional/View/Fixtures/Extensions/test_templates_a/composer.json b/typo3/sysext/backend/Tests/Functional/View/Fixtures/Extensions/test_templates_a/composer.json
index 3b95e1773a1e6f64b490fbe5693da9de545cc335..aff3284fe939ca1a86aef5df6cef1f479113a5be 100644
--- a/typo3/sysext/backend/Tests/Functional/View/Fixtures/Extensions/test_templates_a/composer.json
+++ b/typo3/sysext/backend/Tests/Functional/View/Fixtures/Extensions/test_templates_a/composer.json
@@ -2,7 +2,7 @@
 	"name": "typo3tests/cms-test-templates-a",
 	"type": "typo3-cms-extension",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/backend/Tests/Functional/View/Fixtures/Extensions/test_templates_b/composer.json b/typo3/sysext/backend/Tests/Functional/View/Fixtures/Extensions/test_templates_b/composer.json
index 503abaa72c69b3c46072d07734882c7b1f49b566..f9baa6126c2a5c0de83e470cf7d76f6f78e19b20 100644
--- a/typo3/sysext/backend/Tests/Functional/View/Fixtures/Extensions/test_templates_b/composer.json
+++ b/typo3/sysext/backend/Tests/Functional/View/Fixtures/Extensions/test_templates_b/composer.json
@@ -2,7 +2,7 @@
 	"name": "typo3tests/cms-test-templates-b",
 	"type": "typo3-cms-extension",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/backend/Tests/Functional/View/Fixtures/Extensions/test_templates_c/composer.json b/typo3/sysext/backend/Tests/Functional/View/Fixtures/Extensions/test_templates_c/composer.json
index 3d1d76dcf4318a9905dc3e55366517e276190921..e9987de0e21b0aff167efc0dfe76c224b1049059 100644
--- a/typo3/sysext/backend/Tests/Functional/View/Fixtures/Extensions/test_templates_c/composer.json
+++ b/typo3/sysext/backend/Tests/Functional/View/Fixtures/Extensions/test_templates_c/composer.json
@@ -2,7 +2,7 @@
 	"name": "typo3tests/cms-test-templates-c",
 	"type": "typo3-cms-extension",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/backend/composer.json b/typo3/sysext/backend/composer.json
index 22018004c899f1f3208168d3061b0fa51e205afa..aab6c84132c4f19f85d28624a2dc88d8559aef01 100644
--- a/typo3/sysext/backend/composer.json
+++ b/typo3/sysext/backend/composer.json
@@ -20,7 +20,7 @@
 	},
 	"require": {
 		"psr/event-dispatcher": "^1.0",
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"suggest": {
 		"typo3/cms-install": "To generate url to install tool in environment toolbar"
diff --git a/typo3/sysext/belog/composer.json b/typo3/sysext/belog/composer.json
index b15f9d2ed9bf54ade170ad9319a0a26cc764df57..769185c5cfb844f572651aae2abcae3de1149569 100644
--- a/typo3/sysext/belog/composer.json
+++ b/typo3/sysext/belog/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/beuser/composer.json b/typo3/sysext/beuser/composer.json
index 024950edbb71db1b09ce4037661b2c11240f2b9a..23104b6dd03bfeb1f2bc23fe1366d3168abb482d 100644
--- a/typo3/sysext/beuser/composer.json
+++ b/typo3/sysext/beuser/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/core/Classes/Information/Typo3Version.php b/typo3/sysext/core/Classes/Information/Typo3Version.php
index 235f1379afcc31d33bc2d3ad71003cf11443ac42..c79d735fcae1809e280159b966932246a1b44397 100644
--- a/typo3/sysext/core/Classes/Information/Typo3Version.php
+++ b/typo3/sysext/core/Classes/Information/Typo3Version.php
@@ -19,7 +19,7 @@ namespace TYPO3\CMS\Core\Information;
 
 class Typo3Version
 {
-    protected const VERSION = '12.4.12-dev';
+    protected const VERSION = '12.4.12';
     protected const BRANCH = '12.4';
 
     public function getVersion(): string
diff --git a/typo3/sysext/core/Tests/Functional/Cache/Core/Fixtures/Extensions/aliases_test/composer.json b/typo3/sysext/core/Tests/Functional/Cache/Core/Fixtures/Extensions/aliases_test/composer.json
index 8a4fcd9413ca8f1f1c53841cab4febc9c550cacc..49e09075cccc7a7e72169425fa9b423f543be13b 100644
--- a/typo3/sysext/core/Tests/Functional/Cache/Core/Fixtures/Extensions/aliases_test/composer.json
+++ b/typo3/sysext/core/Tests/Functional/Cache/Core/Fixtures/Extensions/aliases_test/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for core",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/core/Tests/Functional/Category/Collection/Fixtures/Extensions/test_tca/composer.json b/typo3/sysext/core/Tests/Functional/Category/Collection/Fixtures/Extensions/test_tca/composer.json
index aea621a4c4ef7975ead1a2c4dc5f6aba60873018..d1a133da5c7476086805af9f06fa90d2538c9614 100644
--- a/typo3/sysext/core/Tests/Functional/Category/Collection/Fixtures/Extensions/test_tca/composer.json
+++ b/typo3/sysext/core/Tests/Functional/Category/Collection/Fixtures/Extensions/test_tca/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for core",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/core/Tests/Functional/Database/Fixtures/Extensions/test_expressionbuilder/composer.json b/typo3/sysext/core/Tests/Functional/Database/Fixtures/Extensions/test_expressionbuilder/composer.json
index 72cdf1e0e216a4ad8c98467043939140d6be5989..41b1879d3f6e5d90322fb3b9f0026132cf9e8779 100644
--- a/typo3/sysext/core/Tests/Functional/Database/Fixtures/Extensions/test_expressionbuilder/composer.json
+++ b/typo3/sysext/core/Tests/Functional/Database/Fixtures/Extensions/test_expressionbuilder/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for core",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/irre_tutorial/composer.json b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/irre_tutorial/composer.json
index 1c1b01bdaa577dc0b1e14f12f59db5a5c60aeb3c..80a28a565f8b79124ba5ec2cba0cee385523c3d7 100644
--- a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/irre_tutorial/composer.json
+++ b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/irre_tutorial/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for core",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_datahandler/composer.json b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_datahandler/composer.json
index 2b84849bebb58c9884abf82ac6f533f77afdda5a..eccaba0213b94d9e343133c9e25f89c69a2b4ddc 100644
--- a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_datahandler/composer.json
+++ b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_datahandler/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for core",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_datahandler_slug/composer.json b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_datahandler_slug/composer.json
index 9d8606e338aa1bdae4b6df64824e30ff17e8996f..f96e7de08b0de8edee250af49e00d346babf0140 100644
--- a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_datahandler_slug/composer.json
+++ b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_datahandler_slug/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for core",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_di/composer.json b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_di/composer.json
index 0f972a72b331eca177e947baf6c03e8a15ed2f22..73b21ca9ecaa0e8591d3931cd555cef8a01cc3e0 100644
--- a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_di/composer.json
+++ b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_di/composer.json
@@ -4,7 +4,7 @@
 	"description": "This extension contains dependency injection fixtures.",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_eid/composer.json b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_eid/composer.json
index 671f6bd1d44c5adf722e2f8125228cca13d2771f..e31edf73447dd8662c56279d72d774afdfecabc5 100644
--- a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_eid/composer.json
+++ b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_eid/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for core",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_flex_section_container/composer.json b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_flex_section_container/composer.json
index a37c709b1852079e7404d77d07184d37b35a4c78..337b76fd9e3611729c035e76de9a3f408d7c8287 100644
--- a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_flex_section_container/composer.json
+++ b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_flex_section_container/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for core",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_fluid_email/composer.json b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_fluid_email/composer.json
index 8a6ddb34250b6de60f3bd5831707c7f7052a2b0f..3d351fa33417bdf151ca52b7b374c4c8db34a69b 100644
--- a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_fluid_email/composer.json
+++ b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_fluid_email/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for core",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_csv/composer.json b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_csv/composer.json
index b929ea0306e8a35c7335cffa97b395aa8fbc236c..c14c344a15b6eef1cf6aab28f420e388325cb06a 100644
--- a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_csv/composer.json
+++ b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_csv/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for core",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_foreignfield/composer.json b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_foreignfield/composer.json
index c27d1a148f960228f517572067ddf964e6fdc8fe..0f1e490a9395c38314bf744b3c1aac45097d3622 100644
--- a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_foreignfield/composer.json
+++ b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_foreignfield/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for core",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_foreignfield_non_ws/composer.json b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_foreignfield_non_ws/composer.json
index 9d577204f69fa1eac70d801d7f4ffda2d7754f8a..38873ea2c9c085e98a4ca076a228962731f57ba2 100644
--- a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_foreignfield_non_ws/composer.json
+++ b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_foreignfield_non_ws/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for core",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_mm/composer.json b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_mm/composer.json
index d77440d440fdcc983675f1a3e2c0dfc1e080b348..590461a4ec554fb9f6bb2ca538208575b7fc585e 100644
--- a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_mm/composer.json
+++ b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_mm/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for core",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_mnattributeinline/composer.json b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_mnattributeinline/composer.json
index b921937c7a09d180ebec0286a348b2e976e5918e..45e4eb1e8c1bfd57d3f79c69f7a12db827761d4b 100644
--- a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_mnattributeinline/composer.json
+++ b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_mnattributeinline/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for core",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_mnattributesimple/composer.json b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_mnattributesimple/composer.json
index e88e69d34b76335d5e4438dbcf631b2d73b73ab7..b193acbaedf4d0c4251007ec7c9ff9a183156e64 100644
--- a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_mnattributesimple/composer.json
+++ b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_mnattributesimple/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for core",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_mnsymmetric/composer.json b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_mnsymmetric/composer.json
index 5fb9af10684e22e3771bdfe68f344307750fa1c3..9555d4403f42fd747d365d385eee3db8af92b246 100644
--- a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_mnsymmetric/composer.json
+++ b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_irre_mnsymmetric/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for core",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_localization/composer.json b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_localization/composer.json
index c364068e7a6d5ce768994be7aadf201b4eb6a49f..b78090cb999bbafb5c5aa0d31232ce47e2c9152d 100644
--- a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_localization/composer.json
+++ b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_localization/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for core",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_logger/composer.json b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_logger/composer.json
index 91bad479b882c5f92d113aef8b9133cd30757981..3ba1314ec9ef0037b5303d3a4a73350120973adc 100644
--- a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_logger/composer.json
+++ b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_logger/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for core",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_meta/composer.json b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_meta/composer.json
index ae546467a65b778a7aa1c87636b40cc8302e1ee1..24c27311115242c33fce0502b66ae6c9a0abd756 100644
--- a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_meta/composer.json
+++ b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_meta/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for core",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_resources/composer.json b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_resources/composer.json
index a96686172bf00c826e9e7c6744d226fa791db208..dcd9ec49dbe88bd91dcf22543b925a4a0513204e 100644
--- a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_resources/composer.json
+++ b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_resources/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for core",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_select_flex_mm/composer.json b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_select_flex_mm/composer.json
index faf7aa72b3b2bbd5e5b246eb6cf301766eb3a5a1..92f91e5536086bc9637f39a6f737b0af3c36d239 100644
--- a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_select_flex_mm/composer.json
+++ b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_select_flex_mm/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for core",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_typoscript_ast_function_event/composer.json b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_typoscript_ast_function_event/composer.json
index 4bcebafb26d7b9a0d73a6e9df11df4b9f3d27b8f..8615a8eeb8475515480865f7a566d1144ae47f36 100644
--- a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_typoscript_ast_function_event/composer.json
+++ b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_typoscript_ast_function_event/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for core",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_typoscript_pagetsconfigfactory/composer.json b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_typoscript_pagetsconfigfactory/composer.json
index 923e4f2d866324fea5433258b17f685573fe505c..30580e02a8473064fc2274d6d0c2d26f1c1c1fa7 100644
--- a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_typoscript_pagetsconfigfactory/composer.json
+++ b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_typoscript_pagetsconfigfactory/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for core",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_typoscript_usertsconfigfactory/composer.json b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_typoscript_usertsconfigfactory/composer.json
index 7182ef95cda47de84477ffe8261f274fa5b52982..a09be5feaef5697895b83f581474f0ce46f56fcd 100644
--- a/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_typoscript_usertsconfigfactory/composer.json
+++ b/typo3/sysext/core/Tests/Functional/Fixtures/Extensions/test_typoscript_usertsconfigfactory/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for core",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/dashboard/composer.json b/typo3/sysext/dashboard/composer.json
index 6f97de183717e8ccaf7bd0a40189b64d37228ab9..c55eac53c7db8aa2efaa828cdcaa965960a19a49 100644
--- a/typo3/sysext/dashboard/composer.json
+++ b/typo3/sysext/dashboard/composer.json
@@ -19,11 +19,11 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "12.4.*@dev",
-		"typo3/cms-frontend": "12.4.*@dev",
-		"typo3/cms-backend": "12.4.*@dev",
-		"typo3/cms-fluid": "12.4.*@dev",
-		"typo3/cms-extbase": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12",
+		"typo3/cms-frontend": "12.4.12",
+		"typo3/cms-backend": "12.4.12",
+		"typo3/cms-fluid": "12.4.12",
+		"typo3/cms-extbase": "12.4.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/extbase/Tests/Functional/Fixtures/Extensions/blog_example/composer.json b/typo3/sysext/extbase/Tests/Functional/Fixtures/Extensions/blog_example/composer.json
index 43014ceeeb0e70891184cfb83a4e8a02b4f19922..7c05d5e20087e6e44087034cb77c1635ef85e8ab 100644
--- a/typo3/sysext/extbase/Tests/Functional/Fixtures/Extensions/blog_example/composer.json
+++ b/typo3/sysext/extbase/Tests/Functional/Fixtures/Extensions/blog_example/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for extbase",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/extbase/Tests/Functional/Fixtures/Extensions/label_test/composer.json b/typo3/sysext/extbase/Tests/Functional/Fixtures/Extensions/label_test/composer.json
index 3ba3290675e643d2f6deb8a2f99ce52cd44c9426..42ba9a9e3df863930731e204fc9537a4ebf74a9f 100644
--- a/typo3/sysext/extbase/Tests/Functional/Fixtures/Extensions/label_test/composer.json
+++ b/typo3/sysext/extbase/Tests/Functional/Fixtures/Extensions/label_test/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for extbase",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/extbase/Tests/Functional/Fixtures/Extensions/parent_child_translation/composer.json b/typo3/sysext/extbase/Tests/Functional/Fixtures/Extensions/parent_child_translation/composer.json
index b4ab9c6e7d1b8068a7a4131734f319730ba8d0f6..4ad69ce7e6c467c5e27ea260bd988498dd4deae0 100644
--- a/typo3/sysext/extbase/Tests/Functional/Fixtures/Extensions/parent_child_translation/composer.json
+++ b/typo3/sysext/extbase/Tests/Functional/Fixtures/Extensions/parent_child_translation/composer.json
@@ -4,7 +4,7 @@
     "description": "Test extension for Forge issue #92768",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
     "autoload": {
         "psr-4": {
diff --git a/typo3/sysext/extbase/Tests/Functional/Fixtures/Extensions/test_data_mapper/composer.json b/typo3/sysext/extbase/Tests/Functional/Fixtures/Extensions/test_data_mapper/composer.json
index 064778180255694a4e1d013f4a8d95d7bb908e22..4b8e989c0eb32ddeb5365c892747114b6a217431 100644
--- a/typo3/sysext/extbase/Tests/Functional/Fixtures/Extensions/test_data_mapper/composer.json
+++ b/typo3/sysext/extbase/Tests/Functional/Fixtures/Extensions/test_data_mapper/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for extbase",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/extbase/Tests/Functional/Fixtures/Extensions/test_validators/composer.json b/typo3/sysext/extbase/Tests/Functional/Fixtures/Extensions/test_validators/composer.json
index 61bfeb8aaefc16602fca57470872ca756f1e06fc..a6bec480449cdd4465a9d1140a50762a6a68436e 100644
--- a/typo3/sysext/extbase/Tests/Functional/Fixtures/Extensions/test_validators/composer.json
+++ b/typo3/sysext/extbase/Tests/Functional/Fixtures/Extensions/test_validators/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for extbase",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/extbase/Tests/Functional/Fixtures/Extensions/type_converter_test/composer.json b/typo3/sysext/extbase/Tests/Functional/Fixtures/Extensions/type_converter_test/composer.json
index 2420dffa982030b2bb02b39507c8a637b51ac126..87fdcf8533a1e04eac66799111437754a257690a 100644
--- a/typo3/sysext/extbase/Tests/Functional/Fixtures/Extensions/type_converter_test/composer.json
+++ b/typo3/sysext/extbase/Tests/Functional/Fixtures/Extensions/type_converter_test/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for extbase",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/extbase/Tests/Functional/Mvc/Controller/Fixture/Extension/action_controller_argument_test/composer.json b/typo3/sysext/extbase/Tests/Functional/Mvc/Controller/Fixture/Extension/action_controller_argument_test/composer.json
index fa80c2e298e0367178192dc97afd007ef096c10f..d606ea5a6010b6fe701147c361bd70fc9a0eb7a0 100644
--- a/typo3/sysext/extbase/Tests/Functional/Mvc/Controller/Fixture/Extension/action_controller_argument_test/composer.json
+++ b/typo3/sysext/extbase/Tests/Functional/Mvc/Controller/Fixture/Extension/action_controller_argument_test/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for extbase",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/extbase/Tests/Functional/Mvc/Controller/Fixture/Extension/action_controller_test/composer.json b/typo3/sysext/extbase/Tests/Functional/Mvc/Controller/Fixture/Extension/action_controller_test/composer.json
index e3bdbcbddf0f5ae603bc5a30f1c0caee044471d8..70a2b1ab5c0b9a50a1a240e28594eef5624fee0a 100644
--- a/typo3/sysext/extbase/Tests/Functional/Mvc/Controller/Fixture/Extension/action_controller_test/composer.json
+++ b/typo3/sysext/extbase/Tests/Functional/Mvc/Controller/Fixture/Extension/action_controller_test/composer.json
@@ -4,7 +4,7 @@
 	"description": "A test extension for extbase",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/extbase/composer.json b/typo3/sysext/extbase/composer.json
index 02c86c2b8bf81544f48d635918212050a135d68c..bd618232ce831493c53cdbc58abda66e9235abe8 100644
--- a/typo3/sysext/extbase/composer.json
+++ b/typo3/sysext/extbase/composer.json
@@ -25,7 +25,7 @@
 		"symfony/dependency-injection": "^6.4 || ^7.0",
 		"symfony/property-access": "^6.4 || ^7.0",
 		"symfony/property-info": "^6.4 || ^7.0",
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"suggest": {
 		"typo3/cms-scheduler": "Additional scheduler tasks"
diff --git a/typo3/sysext/extensionmanager/composer.json b/typo3/sysext/extensionmanager/composer.json
index 31a839e2f02f2ed6daf56de79de75f2e84884d4c..72d6fe8f18ed161aa5295cb42006acb0fb7f13cd 100644
--- a/typo3/sysext/extensionmanager/composer.json
+++ b/typo3/sysext/extensionmanager/composer.json
@@ -20,7 +20,7 @@
 	},
 	"require": {
 		"ext-libxml": "*",
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/felogin/composer.json b/typo3/sysext/felogin/composer.json
index 3450c09e5a5b9041d9a386a97adea847ef1a42d5..098f47a9a03fba9c95d1912fba4cf497e2035445 100644
--- a/typo3/sysext/felogin/composer.json
+++ b/typo3/sysext/felogin/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/filelist/composer.json b/typo3/sysext/filelist/composer.json
index 296e904a2a181ea01c325df1cd06879166b4aba3..377df80dbdab214c5e8d4cdc4c289d3786222546 100644
--- a/typo3/sysext/filelist/composer.json
+++ b/typo3/sysext/filelist/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/filemetadata/composer.json b/typo3/sysext/filemetadata/composer.json
index e9060d60bf09e6f56242757cfd311b4ab7de3622..e4a1c2ea96822fec70b628027d036e13fdf0b8e7 100644
--- a/typo3/sysext/filemetadata/composer.json
+++ b/typo3/sysext/filemetadata/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/fluid/Tests/Functional/Fixtures/Extensions/fluid_test/composer.json b/typo3/sysext/fluid/Tests/Functional/Fixtures/Extensions/fluid_test/composer.json
index b0cf41ff6f4fadb4c7547d0eb99f403a70e519c5..e139dcc230ece700ec3cb9a5175e4d8b112a8f22 100644
--- a/typo3/sysext/fluid/Tests/Functional/Fixtures/Extensions/fluid_test/composer.json
+++ b/typo3/sysext/fluid/Tests/Functional/Fixtures/Extensions/fluid_test/composer.json
@@ -4,7 +4,7 @@
 	"description": "Some Fluid rendering tests",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"autoload": {
 		"psr-4": {
diff --git a/typo3/sysext/fluid/Tests/Functional/Fixtures/Extensions/test_translate/composer.json b/typo3/sysext/fluid/Tests/Functional/Fixtures/Extensions/test_translate/composer.json
index f5f7ae41bc2cda7f7d8f373db41bb3f958d6d88b..11904e022f0b86604c76ea79f1f11bb5fc7d71cf 100644
--- a/typo3/sysext/fluid/Tests/Functional/Fixtures/Extensions/test_translate/composer.json
+++ b/typo3/sysext/fluid/Tests/Functional/Fixtures/Extensions/test_translate/composer.json
@@ -4,7 +4,7 @@
 	"description": "Test translate view helper",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"autoload": {
 		"psr-4": {
diff --git a/typo3/sysext/fluid/composer.json b/typo3/sysext/fluid/composer.json
index 1e8b5fc9b32195c89964b057f99ece34d4a870e9..bce12aa374f070e2938ded6b65f810439135e3df 100644
--- a/typo3/sysext/fluid/composer.json
+++ b/typo3/sysext/fluid/composer.json
@@ -20,8 +20,8 @@
 	},
 	"require": {
 		"symfony/dependency-injection": "^6.4 || ^7.0",
-		"typo3/cms-core": "12.4.*@dev",
-		"typo3/cms-extbase": "12.4.*@dev",
+		"typo3/cms-core": "12.4.12",
+		"typo3/cms-extbase": "12.4.12",
 		"typo3fluid/fluid": "^2.9.2"
 	},
 	"conflict": {
diff --git a/typo3/sysext/fluid_styled_content/composer.json b/typo3/sysext/fluid_styled_content/composer.json
index 0739ace77ecaa20f1629b38a544946950eb185cf..d68e0c5ec32fc03fd21de27abe646943267fef3b 100644
--- a/typo3/sysext/fluid_styled_content/composer.json
+++ b/typo3/sysext/fluid_styled_content/composer.json
@@ -19,9 +19,9 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "12.4.*@dev",
-		"typo3/cms-fluid": "12.4.*@dev",
-		"typo3/cms-frontend": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12",
+		"typo3/cms-fluid": "12.4.12",
+		"typo3/cms-frontend": "12.4.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/form/Tests/Functional/RequestHandling/Fixtures/Extensions/form_caching_tests/composer.json b/typo3/sysext/form/Tests/Functional/RequestHandling/Fixtures/Extensions/form_caching_tests/composer.json
index 210ad74f69efe7cabef6365db1e9c04ddc1e46d6..308c52532965b1eb340c18aa2939d73ee138cdf5 100644
--- a/typo3/sysext/form/Tests/Functional/RequestHandling/Fixtures/Extensions/form_caching_tests/composer.json
+++ b/typo3/sysext/form/Tests/Functional/RequestHandling/Fixtures/Extensions/form_caching_tests/composer.json
@@ -4,7 +4,7 @@
 	"description": "",
 	"license": ["GPL-2.0-or-later"],
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"autoload": {
 		"psr-4": {
diff --git a/typo3/sysext/form/Tests/Functional/Service/Fixtures/Extensions/form_labels/composer.json b/typo3/sysext/form/Tests/Functional/Service/Fixtures/Extensions/form_labels/composer.json
index 7b98c087beae4639a4daff104ff62464c685efba..db565ca25402f68793a37ae1b54a60f193fd4b12 100644
--- a/typo3/sysext/form/Tests/Functional/Service/Fixtures/Extensions/form_labels/composer.json
+++ b/typo3/sysext/form/Tests/Functional/Service/Fixtures/Extensions/form_labels/composer.json
@@ -4,7 +4,7 @@
 	"description": "",
 	"license": ["GPL-2.0-or-later"],
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/form/composer.json b/typo3/sysext/form/composer.json
index d02b4fbaca56e91e042a2dfe3467a09db4225fcc..c33d4d143a881d89b411f04ceb8596b001a4dd0d 100644
--- a/typo3/sysext/form/composer.json
+++ b/typo3/sysext/form/composer.json
@@ -21,8 +21,8 @@
 	"require": {
 		"psr/http-message": "^1.1 || ^2.0",
 		"symfony/expression-language": "^6.4 || ^7.0",
-		"typo3/cms-core": "12.4.*@dev",
-		"typo3/cms-frontend": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12",
+		"typo3/cms-frontend": "12.4.12"
 	},
 	"suggest": {
 		"typo3/cms-filelist": "Listing of files in the directory",
diff --git a/typo3/sysext/frontend/Tests/Functional/Fixtures/Extensions/test_fluid_template/composer.json b/typo3/sysext/frontend/Tests/Functional/Fixtures/Extensions/test_fluid_template/composer.json
index 74bd83395b9b604891a9ca7ac0380668b45c355f..0a79c0bc7887f210c8ab857fa95e19937f21eb6e 100644
--- a/typo3/sysext/frontend/Tests/Functional/Fixtures/Extensions/test_fluid_template/composer.json
+++ b/typo3/sysext/frontend/Tests/Functional/Fixtures/Extensions/test_fluid_template/composer.json
@@ -4,7 +4,7 @@
 	"description": "FluidTemplateContentObject Test",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"autoload": {
 		"psr-4": {
diff --git a/typo3/sysext/frontend/Tests/Functional/Fixtures/Extensions/test_request_mirror/composer.json b/typo3/sysext/frontend/Tests/Functional/Fixtures/Extensions/test_request_mirror/composer.json
index 94b694d3c73e38f1a920dc5469161f4b6093bf06..75a71a18a4e5fab62961cf4aa11d333f6fceca40 100644
--- a/typo3/sysext/frontend/Tests/Functional/Fixtures/Extensions/test_request_mirror/composer.json
+++ b/typo3/sysext/frontend/Tests/Functional/Fixtures/Extensions/test_request_mirror/composer.json
@@ -4,7 +4,7 @@
 	"description": "a fixture extension for fluid functional tests",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"autoload": {
 		"psr-4": {
diff --git a/typo3/sysext/frontend/composer.json b/typo3/sysext/frontend/composer.json
index 35eebc13f15e28c4a9acd7522d24609c6db30417..b142ccb96005808fc0993b3ed4679df1f42d56ad 100644
--- a/typo3/sysext/frontend/composer.json
+++ b/typo3/sysext/frontend/composer.json
@@ -20,7 +20,7 @@
 	},
 	"require": {
 		"ext-libxml": "*",
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/impexp/Tests/Functional/Fixtures/Extensions/template_extension/composer.json b/typo3/sysext/impexp/Tests/Functional/Fixtures/Extensions/template_extension/composer.json
index 44482001b51927498daa42e02e06871b6a5c1cd2..6c75cc2d2e451074e7d01addb90b4015032abfde 100644
--- a/typo3/sysext/impexp/Tests/Functional/Fixtures/Extensions/template_extension/composer.json
+++ b/typo3/sysext/impexp/Tests/Functional/Fixtures/Extensions/template_extension/composer.json
@@ -4,7 +4,7 @@
 	"description": "a fixture extension for impexp functional tests",
 	"license": "GPL-2.0-or-later",
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/typo3/sysext/impexp/composer.json b/typo3/sysext/impexp/composer.json
index b771b3cd3d226f554e4f6a1a29a54ec06ccd7f56..d2e07d3243c6d046b95d8a71baa21122543f57ea 100644
--- a/typo3/sysext/impexp/composer.json
+++ b/typo3/sysext/impexp/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/indexed_search/composer.json b/typo3/sysext/indexed_search/composer.json
index d01df4fb70caa6304b80aa4351b3109fb581c6b1..9c4cf9306a140ccc1d1e07e58ca34f1b3420aecb 100644
--- a/typo3/sysext/indexed_search/composer.json
+++ b/typo3/sysext/indexed_search/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/info/composer.json b/typo3/sysext/info/composer.json
index ba2160f7b7e6e64865fdfd7b890ec11c37691d65..afecaa5523433fdbd0116912ebec03b531946fe6 100644
--- a/typo3/sysext/info/composer.json
+++ b/typo3/sysext/info/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/install/composer.json b/typo3/sysext/install/composer.json
index d7d656eb8c16f967d5f75bc63cd30b29f0ef744c..d42f2c3e695431a971554d9f881462226312d842 100644
--- a/typo3/sysext/install/composer.json
+++ b/typo3/sysext/install/composer.json
@@ -24,9 +24,9 @@
 		"nikic/php-parser": "^4.15.4",
 		"symfony/finder": "^6.4 || ^7.0",
 		"symfony/http-foundation": "^6.4 || ^7.0",
-		"typo3/cms-core": "12.4.*@dev",
-		"typo3/cms-extbase": "12.4.*@dev",
-		"typo3/cms-fluid": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12",
+		"typo3/cms-extbase": "12.4.12",
+		"typo3/cms-fluid": "12.4.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/linkvalidator/composer.json b/typo3/sysext/linkvalidator/composer.json
index 94e9296a83349c4da1bf9f2262df75476fa7fbe8..a9b44afafdf194cb42087ee8bc61c052f572b82b 100644
--- a/typo3/sysext/linkvalidator/composer.json
+++ b/typo3/sysext/linkvalidator/composer.json
@@ -19,8 +19,8 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "12.4.*@dev",
-		"typo3/cms-info": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12",
+		"typo3/cms-info": "12.4.12"
 	},
 	"suggest": {
 		"typo3/cms-scheduler": "Regular checks of links"
diff --git a/typo3/sysext/lowlevel/composer.json b/typo3/sysext/lowlevel/composer.json
index ef8e3bbf8ad3cb81c8e5dfd0f0940e8061e38701..05140e9f904f4fb03b841f701002913557d9226d 100644
--- a/typo3/sysext/lowlevel/composer.json
+++ b/typo3/sysext/lowlevel/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/opendocs/composer.json b/typo3/sysext/opendocs/composer.json
index 3a37c8683480f269d41f1e7ff4e0bc440ebb0dd5..e888f93cf06baa36d2b6077ee1d1bcb65aeb86d3 100644
--- a/typo3/sysext/opendocs/composer.json
+++ b/typo3/sysext/opendocs/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/reactions/composer.json b/typo3/sysext/reactions/composer.json
index fb3f711540e20c491e10be9699a27947bd835376..571559d1253d201d0220e947596e112ba5eb8326 100644
--- a/typo3/sysext/reactions/composer.json
+++ b/typo3/sysext/reactions/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"suggest": {
 		"typo3/cms-lowlevel": "To display registered reactions in the configuration module"
diff --git a/typo3/sysext/recycler/composer.json b/typo3/sysext/recycler/composer.json
index 04be77d1f73df6207412c557252e12692154ed4b..69af5d6307854edb95fc21c239f36df9d583db8e 100644
--- a/typo3/sysext/recycler/composer.json
+++ b/typo3/sysext/recycler/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"suggest": {
 		"typo3/cms-scheduler": "Remove deleted records after given time"
diff --git a/typo3/sysext/redirects/composer.json b/typo3/sysext/redirects/composer.json
index 63549eb525f226112ada721480823245c15fb01f..4e8e5fcadae7bf13c4b882672ffda4e4d6cd347d 100644
--- a/typo3/sysext/redirects/composer.json
+++ b/typo3/sysext/redirects/composer.json
@@ -23,8 +23,8 @@
 		"psr/http-message": "^1.1 || ^2.0",
 		"psr/log": "^2.0 || ^3.0",
 		"symfony/console": "^6.4 || ^7.0",
-		"typo3/cms-backend": "12.4.*@dev",
-		"typo3/cms-core": "12.4.*@dev",
+		"typo3/cms-backend": "12.4.12",
+		"typo3/cms-core": "12.4.12",
 		"typo3fluid/fluid": "^2.9.2"
 	},
 	"conflict": {
diff --git a/typo3/sysext/reports/composer.json b/typo3/sysext/reports/composer.json
index b46578f488b202d34515625f39c1b15206688c4a..908605c3f37e70cd5bb128fbd5ba13f4899587f4 100644
--- a/typo3/sysext/reports/composer.json
+++ b/typo3/sysext/reports/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"suggest": {
 		"typo3/cms-scheduler": "Determine system's status and send it via email"
diff --git a/typo3/sysext/rte_ckeditor/composer.json b/typo3/sysext/rte_ckeditor/composer.json
index 05f93564a21cbd0b5aec5c0f031b8a9aa74ca16f..a0bfe32013e10c04fa95b718d7403c5cbe35d923 100644
--- a/typo3/sysext/rte_ckeditor/composer.json
+++ b/typo3/sysext/rte_ckeditor/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/scheduler/composer.json b/typo3/sysext/scheduler/composer.json
index e3b715a7c4209bc72cb8bbf886b9c34364857f62..5439350bc4f9cb4e1d586a1732ec53d0dfd8611e 100644
--- a/typo3/sysext/scheduler/composer.json
+++ b/typo3/sysext/scheduler/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/seo/composer.json b/typo3/sysext/seo/composer.json
index 52e75fa16a9154045ed810f372c9084880684584..c4578c43df0c986b8bbe049ea3ecb3a9456d07f9 100644
--- a/typo3/sysext/seo/composer.json
+++ b/typo3/sysext/seo/composer.json
@@ -19,9 +19,9 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "12.4.*@dev",
-		"typo3/cms-frontend": "12.4.*@dev",
-		"typo3/cms-extbase": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12",
+		"typo3/cms-frontend": "12.4.12",
+		"typo3/cms-extbase": "12.4.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/setup/composer.json b/typo3/sysext/setup/composer.json
index 4d6ae87c3b57f551caa0176cf3bc0ebb4152c154..7652f4d1526fd379d2e2ca751095a1c9928c6538 100644
--- a/typo3/sysext/setup/composer.json
+++ b/typo3/sysext/setup/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/sys_note/composer.json b/typo3/sysext/sys_note/composer.json
index 248f78ffac15519b28f28240a7a2682a9a786411..6cdbf90da629d907aad72b78bc912f0e14407f89 100644
--- a/typo3/sysext/sys_note/composer.json
+++ b/typo3/sysext/sys_note/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/t3editor/composer.json b/typo3/sysext/t3editor/composer.json
index e08edaf4979e23069c258f132184677f23df8b8f..e9c26a9ba99799d817e5c92aaa21020d56e81291 100644
--- a/typo3/sysext/t3editor/composer.json
+++ b/typo3/sysext/t3editor/composer.json
@@ -20,7 +20,7 @@
 	},
 	"require": {
 		"ext-libxml": "*",
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/tstemplate/composer.json b/typo3/sysext/tstemplate/composer.json
index f97c0818c746148b3012919aad5cf976f9610cee..a8bf377e0bb6aad9e50761a478a631dfcfecaff9 100644
--- a/typo3/sysext/tstemplate/composer.json
+++ b/typo3/sysext/tstemplate/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/viewpage/composer.json b/typo3/sysext/viewpage/composer.json
index 53298d56c743fc1dcfe0da4ae4788607c4225a87..f969a7065706d226e301ea3fcc92df994aec61a0 100644
--- a/typo3/sysext/viewpage/composer.json
+++ b/typo3/sysext/viewpage/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/webhooks/composer.json b/typo3/sysext/webhooks/composer.json
index 2b295bc890df96c459296ab9a330da9dada7d09f..a632408d74d705536991ef8ea3085783262895a7 100644
--- a/typo3/sysext/webhooks/composer.json
+++ b/typo3/sysext/webhooks/composer.json
@@ -20,7 +20,7 @@
 	},
 	"require": {
 		"symfony/uid": "^6.4 || ^7.0",
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"suggest": {
 		"typo3/cms-lowlevel": "To display registered webhooks in the configuration module"
diff --git a/typo3/sysext/workspaces/composer.json b/typo3/sysext/workspaces/composer.json
index 4f9b31be35d2cbe5e3008e00b8e620e63aa81a31..684acd6d3e3947f8131c94610f2559a9cc2da763 100644
--- a/typo3/sysext/workspaces/composer.json
+++ b/typo3/sysext/workspaces/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "12.4.*@dev"
+		"typo3/cms-core": "12.4.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"