diff --git a/typo3/sysext/adminpanel/composer.json b/typo3/sysext/adminpanel/composer.json
index 2bff4ebbab954544b02b071b73cae9d2341f7ba1..e5439da80b1639a8df6de5544d96eed9626e15df 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": "^5.4",
-		"typo3/cms-backend": "11.5.*@dev",
-		"typo3/cms-core": "11.5.*@dev",
-		"typo3/cms-fluid": "11.5.*@dev",
-		"typo3/cms-frontend": "11.5.*@dev",
+		"typo3/cms-backend": "11.5.12",
+		"typo3/cms-core": "11.5.12",
+		"typo3/cms-fluid": "11.5.12",
+		"typo3/cms-frontend": "11.5.12",
 		"typo3fluid/fluid": "^2.7.1"
 	},
 	"conflict": {
diff --git a/typo3/sysext/backend/composer.json b/typo3/sysext/backend/composer.json
index 3a3060453243d9934fa98ae49128e3f186009da1..414c418270e891d309626e66faed1cc0b8075a7b 100644
--- a/typo3/sysext/backend/composer.json
+++ b/typo3/sysext/backend/composer.json
@@ -20,8 +20,8 @@
 	},
 	"require": {
 		"psr/event-dispatcher": "^1.0",
-		"typo3/cms-core": "11.5.*@dev",
-		"typo3/cms-recordlist": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12",
+		"typo3/cms-recordlist": "11.5.12"
 	},
 	"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 08c89258c771f36a125177f9e91883f25cb3296c..e032f589a577a1c9e1252096f78a48a67884e865 100644
--- a/typo3/sysext/belog/composer.json
+++ b/typo3/sysext/belog/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/beuser/composer.json b/typo3/sysext/beuser/composer.json
index 01f8b169ae307dc847cdcdbf90a22826b4765387..34f062592cedbc8398d501d6ffa56d08047ac46d 100644
--- a/typo3/sysext/beuser/composer.json
+++ b/typo3/sysext/beuser/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/core/Classes/Information/Typo3Version.php b/typo3/sysext/core/Classes/Information/Typo3Version.php
index 1619e901f075a3baad19cd383699ddb10d40d783..6a8c6f2c8283ab97ed25b11092752d4c27872a38 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 = '11.5.12-dev';
+    protected const VERSION = '11.5.12';
     protected const BRANCH = '11.5';
 
     /**
diff --git a/typo3/sysext/dashboard/composer.json b/typo3/sysext/dashboard/composer.json
index e02b13c108124e80ffeb92a4c50a8f9d8efe81dd..b66a49f52e9792c1309c16f15d29a88177b02b1d 100644
--- a/typo3/sysext/dashboard/composer.json
+++ b/typo3/sysext/dashboard/composer.json
@@ -19,11 +19,11 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "11.5.*@dev",
-		"typo3/cms-frontend": "11.5.*@dev",
-		"typo3/cms-backend": "11.5.*@dev",
-		"typo3/cms-fluid": "11.5.*@dev",
-		"typo3/cms-extbase": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12",
+		"typo3/cms-frontend": "11.5.12",
+		"typo3/cms-backend": "11.5.12",
+		"typo3/cms-fluid": "11.5.12",
+		"typo3/cms-extbase": "11.5.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/extbase/composer.json b/typo3/sysext/extbase/composer.json
index 6b1723974da5942bee6ba6012b7a09919944294c..388319910b558741f0b6bb0d5971f779ac928137 100644
--- a/typo3/sysext/extbase/composer.json
+++ b/typo3/sysext/extbase/composer.json
@@ -24,7 +24,7 @@
 		"symfony/dependency-injection": "^5.4",
 		"symfony/property-access": "^5.4",
 		"symfony/property-info": "^5.4",
-		"typo3/cms-core": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12"
 	},
 	"suggest": {
 		"typo3/cms-scheduler": "Additional scheduler tasks"
diff --git a/typo3/sysext/extensionmanager/composer.json b/typo3/sysext/extensionmanager/composer.json
index da05ca1c6deceed8e01aa4fc9259fed22f15428c..9a6188b1d516b9e83f9b1c469bc1b80b6c1d93e4 100644
--- a/typo3/sysext/extensionmanager/composer.json
+++ b/typo3/sysext/extensionmanager/composer.json
@@ -20,7 +20,7 @@
 	},
 	"require": {
 		"ext-libxml": "*",
-		"typo3/cms-core": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/felogin/composer.json b/typo3/sysext/felogin/composer.json
index a0af58413636995db7e1bfeb339f3a9eb6066e61..9757db144798df5f2ff20edc586fe6ed801da37d 100644
--- a/typo3/sysext/felogin/composer.json
+++ b/typo3/sysext/felogin/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/filelist/composer.json b/typo3/sysext/filelist/composer.json
index e0086ec27def674d4c8f2c076a35d5d9908ba612..84b5503fc5b66fa0f1532625bf0d9a1d69128224 100644
--- a/typo3/sysext/filelist/composer.json
+++ b/typo3/sysext/filelist/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/filemetadata/composer.json b/typo3/sysext/filemetadata/composer.json
index 152efebb53c6d52d4d29e4f196379358d369ec4d..0e2ace8c9da453ad66a0dd7de30f085291fcf881 100644
--- a/typo3/sysext/filemetadata/composer.json
+++ b/typo3/sysext/filemetadata/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/fluid/composer.json b/typo3/sysext/fluid/composer.json
index 633c5782f57156f31105dc72e367bc45f8804cdb..494c1dbd42251302c47dfcf0ef926db0bda9807f 100644
--- a/typo3/sysext/fluid/composer.json
+++ b/typo3/sysext/fluid/composer.json
@@ -20,8 +20,8 @@
 	},
 	"require": {
 		"symfony/dependency-injection": "^5.4",
-		"typo3/cms-core": "11.5.*@dev",
-		"typo3/cms-extbase": "11.5.*@dev",
+		"typo3/cms-core": "11.5.12",
+		"typo3/cms-extbase": "11.5.12",
 		"typo3fluid/fluid": "^2.7.1"
 	},
 	"conflict": {
diff --git a/typo3/sysext/fluid_styled_content/composer.json b/typo3/sysext/fluid_styled_content/composer.json
index 9922c595e2eb5978d7c25c3671986900cd793590..b0ead49d0bcb8f8723bf570f998845ac0e758219 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": "11.5.*@dev",
-		"typo3/cms-fluid": "11.5.*@dev",
-		"typo3/cms-frontend": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12",
+		"typo3/cms-fluid": "11.5.12",
+		"typo3/cms-frontend": "11.5.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/form/composer.json b/typo3/sysext/form/composer.json
index 67ed28082190eb9a2b210a0def97c99ef1046125..268a182378577f921a6c23917e435b11b6da840c 100644
--- a/typo3/sysext/form/composer.json
+++ b/typo3/sysext/form/composer.json
@@ -21,7 +21,7 @@
 	"require": {
 		"psr/http-message": "^1.0",
 		"symfony/expression-language": "^5.4",
-		"typo3/cms-core": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12"
 	},
 	"suggest": {
 		"typo3/cms-filelist": "Listing of files in the directory",
diff --git a/typo3/sysext/frontend/composer.json b/typo3/sysext/frontend/composer.json
index fbe64b99aa97ce9982193b183975ea216feb3e1f..132d38e0eba33e12fc145b0428af21c1416bd02b 100644
--- a/typo3/sysext/frontend/composer.json
+++ b/typo3/sysext/frontend/composer.json
@@ -21,7 +21,7 @@
 	"require": {
 		"ext-libxml": "*",
 		"symfony/polyfill-mbstring": "^1.23.1",
-		"typo3/cms-core": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/impexp/composer.json b/typo3/sysext/impexp/composer.json
index eb12a42f253e7613aba2ea4736ce295a22f1f81b..853f5c6d01335f7d9f72c803e786a3bee0f36896 100644
--- a/typo3/sysext/impexp/composer.json
+++ b/typo3/sysext/impexp/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/indexed_search/composer.json b/typo3/sysext/indexed_search/composer.json
index 688877808e95d16566f070103bd4878ba650c461..c5d99aef7c422aae3b56c4c427ef9ce0dffad70d 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": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/info/composer.json b/typo3/sysext/info/composer.json
index a13634f3d4df3cc2a747f862a0380fd22fdb2ea0..9ffeeb05474d4d5bedaa0beef168db0570d9f051 100644
--- a/typo3/sysext/info/composer.json
+++ b/typo3/sysext/info/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/install/composer.json b/typo3/sysext/install/composer.json
index c9397b7dc7d59cb0874e195d0fb2cf43e398cfcb..c78884e4aea708598a762e16b920d372313ab9cd 100644
--- a/typo3/sysext/install/composer.json
+++ b/typo3/sysext/install/composer.json
@@ -24,9 +24,9 @@
 		"nikic/php-parser": "^4.13.2",
 		"symfony/finder": "^5.4",
 		"symfony/http-foundation": "^5.4",
-		"typo3/cms-core": "11.5.*@dev",
-		"typo3/cms-extbase": "11.5.*@dev",
-		"typo3/cms-fluid": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12",
+		"typo3/cms-extbase": "11.5.12",
+		"typo3/cms-fluid": "11.5.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/linkvalidator/composer.json b/typo3/sysext/linkvalidator/composer.json
index 06924269af0025cce2b5465ab43a70e03fe1c2c2..9e663cae1e8e70f6067db3f87ee3e7d925b530db 100644
--- a/typo3/sysext/linkvalidator/composer.json
+++ b/typo3/sysext/linkvalidator/composer.json
@@ -19,8 +19,8 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "11.5.*@dev",
-		"typo3/cms-info": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12",
+		"typo3/cms-info": "11.5.12"
 	},
 	"suggest": {
 		"typo3/cms-scheduler": "Regular checks of links"
diff --git a/typo3/sysext/lowlevel/composer.json b/typo3/sysext/lowlevel/composer.json
index 5b4cf6dede3e78ea912d7ad734e056534b4d1424..324a99015d6d817727bdadd4a62ce191961dbd78 100644
--- a/typo3/sysext/lowlevel/composer.json
+++ b/typo3/sysext/lowlevel/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/opendocs/composer.json b/typo3/sysext/opendocs/composer.json
index fc3b9d0bd6e935339692fb12e25c18a502a79c85..55680118a3539af3c1469918113df726faccaae8 100644
--- a/typo3/sysext/opendocs/composer.json
+++ b/typo3/sysext/opendocs/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/recordlist/composer.json b/typo3/sysext/recordlist/composer.json
index 2c0689602c7b74fd41e1086ea52a216139527c48..8494b69a07d2ef3979e5008a9d97ccf2acc38134 100644
--- a/typo3/sysext/recordlist/composer.json
+++ b/typo3/sysext/recordlist/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/recycler/composer.json b/typo3/sysext/recycler/composer.json
index 20c481bda1de28b1035a3876696e145cbb40c9ac..b6fda03f500526067078681b2ea38a22d7c9ac40 100644
--- a/typo3/sysext/recycler/composer.json
+++ b/typo3/sysext/recycler/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12"
 	},
 	"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 b3a4bad1fd96543bb51bcf3547035e2999b7434d..13499c3e4b7e40098889deb5ef1892981d7cf16a 100644
--- a/typo3/sysext/redirects/composer.json
+++ b/typo3/sysext/redirects/composer.json
@@ -23,8 +23,8 @@
 		"psr/http-message": "^1.0",
 		"psr/log": "^1.0",
 		"symfony/console": "^5.4",
-		"typo3/cms-backend": "11.5.*@dev",
-		"typo3/cms-core": "11.5.*@dev",
+		"typo3/cms-backend": "11.5.12",
+		"typo3/cms-core": "11.5.12",
 		"typo3fluid/fluid": "^2.7.1"
 	},
 	"conflict": {
diff --git a/typo3/sysext/reports/composer.json b/typo3/sysext/reports/composer.json
index 7ad833e76cb2698c5d7c46e6ec70ecac56afd2cc..6e8045fb70adf4077ffa2731a2a9119f6a4b46ad 100644
--- a/typo3/sysext/reports/composer.json
+++ b/typo3/sysext/reports/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12"
 	},
 	"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 3015611bee191a800e1ac1534ccf118a327f218f..d8be1f101e1e7b688e15fbee5398134b3ba6d837 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": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/scheduler/composer.json b/typo3/sysext/scheduler/composer.json
index 69d5c689fc7d390ca597ad6b552196f3b522213c..aa6047e482ec7f05a35d22afa40e5a98ef2cde34 100644
--- a/typo3/sysext/scheduler/composer.json
+++ b/typo3/sysext/scheduler/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/seo/composer.json b/typo3/sysext/seo/composer.json
index a9da9e17fca145694cfbe33c772353dbba109fcf..f871f90dcce83da6c3fbda3d97f3072fdd13d35d 100644
--- a/typo3/sysext/seo/composer.json
+++ b/typo3/sysext/seo/composer.json
@@ -19,9 +19,9 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "11.5.*@dev",
-		"typo3/cms-frontend": "11.5.*@dev",
-		"typo3/cms-extbase": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12",
+		"typo3/cms-frontend": "11.5.12",
+		"typo3/cms-extbase": "11.5.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/setup/composer.json b/typo3/sysext/setup/composer.json
index 4aca3233f9ce87d46fbb834e17f1017aa01a4393..2355a9c6cb6a772122b6d25abe4fd52ab37568af 100644
--- a/typo3/sysext/setup/composer.json
+++ b/typo3/sysext/setup/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/sys_note/composer.json b/typo3/sysext/sys_note/composer.json
index 789ffda575d7bfb2e19c62dd8b299fa4c5432148..7d29a17d057cc5c579b7a492e500b1466508232f 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": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/t3editor/composer.json b/typo3/sysext/t3editor/composer.json
index 2cd184f1e1bc3d6945095c4316edaba9096abff0..cf39702d185d96a5ffb267e6c2ec46e65f001759 100644
--- a/typo3/sysext/t3editor/composer.json
+++ b/typo3/sysext/t3editor/composer.json
@@ -20,7 +20,7 @@
 	},
 	"require": {
 		"ext-libxml": "*",
-		"typo3/cms-core": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/tstemplate/composer.json b/typo3/sysext/tstemplate/composer.json
index 8d4a41f8134dd26d1884db8d3a5b4620b1e82ad7..4003b6742b548764e7a8d068f4b91e975dadc806 100644
--- a/typo3/sysext/tstemplate/composer.json
+++ b/typo3/sysext/tstemplate/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/viewpage/composer.json b/typo3/sysext/viewpage/composer.json
index 99fd5d46d7169539956196257c84162bf0c6032e..33e9d5c5d3ea3f10339a63f1e619feab1f992694 100644
--- a/typo3/sysext/viewpage/composer.json
+++ b/typo3/sysext/viewpage/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/typo3/sysext/workspaces/composer.json b/typo3/sysext/workspaces/composer.json
index ed55b71e61da68ec5994e40a3fcc654037a99bcc..169aa83defe5cd52fd424df8b7ad4a610ec59d76 100644
--- a/typo3/sysext/workspaces/composer.json
+++ b/typo3/sysext/workspaces/composer.json
@@ -19,7 +19,7 @@
 		"sort-packages": true
 	},
 	"require": {
-		"typo3/cms-core": "11.5.*@dev"
+		"typo3/cms-core": "11.5.12"
 	},
 	"conflict": {
 		"typo3/cms": "*"