diff --git a/_scmsync.obsinfo b/_scmsync.obsinfo
new file mode 100644
index 0000000..25f495e
--- /dev/null
+++ b/_scmsync.obsinfo
@@ -0,0 +1,4 @@
+mtime: 1728296627
+commit: 0652256b7d487d755e67db88dae4155f2e58797802835769dbe32a1725582ded
+url: https://src.opensuse.org/mingw/mingw32-headers
+revision: master
diff --git a/build.specials.obscpio b/build.specials.obscpio
new file mode 100644
index 0000000..a390318
--- /dev/null
+++ b/build.specials.obscpio
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:44b43fe0111dbd6c4398bda76cd460743a6b69a5d2233e915838d3b6ce181687
+size 256
diff --git a/mingw-w64-v11.0.1.tar.bz2 b/mingw-w64-v11.0.1.tar.bz2
deleted file mode 100644
index db3662b..0000000
--- a/mingw-w64-v11.0.1.tar.bz2
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:3f66bce069ee8bed7439a1a13da7cb91a5e67ea6170f21317ac7f5794625ee10
-size 10057401
diff --git a/mingw-w64-v12.0.0.tar.bz2 b/mingw-w64-v12.0.0.tar.bz2
new file mode 100644
index 0000000..31f35d2
--- /dev/null
+++ b/mingw-w64-v12.0.0.tar.bz2
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cc41898aac4b6e8dd5cffd7331b9d9515b912df4420a3a612b5ea2955bbeed2f
+size 10474283
diff --git a/mingw32-headers.changes b/mingw32-headers.changes
index 3719418..36a4030 100644
--- a/mingw32-headers.changes
+++ b/mingw32-headers.changes
@@ -1,3 +1,27 @@
+-------------------------------------------------------------------
+Mon Oct  7 10:21:51 UTC 2024 - Jan Engelhardt <jengelh@inai.de>
+
+- Delete --enable-secure-api, this is gone since mingw 7.
+
+-------------------------------------------------------------------
+Sun Oct  6 22:13:26 UTC 2024 - Ralf Habacker <ralf.habacker@freenet.de>
+
+- Fixes build errors in other packages due to undefined
+  references of "_imp____sys_nerr" and others caused by
+  this package not being synchronized with the mingw32-runtime
+  package (--with-default-msvcrt=msvcrt must be used).
+
+-------------------------------------------------------------------
+Wed Aug 28 10:45:16 UTC 2024 - Jan Engelhardt <jengelh@inai.de>
+
+- Update to release 12
+  * C++ overloads for _strdate_s and _strtime_s, _makepath_s,
+    wcsncat_s.
+  * Updated wine header imports.
+  * Many other new win32 APIs.
+  * UCRT configurations now primarily use (faster) math functions
+    from UCRT, rather than libmingwex.
+
 -------------------------------------------------------------------
 Sat Nov 11 14:18:28 UTC 2023 - Ralf Habacker <ralf.habacker@freenet.de>
 
diff --git a/mingw32-headers.spec b/mingw32-headers.spec
index cea7cec..00e191d 100644
--- a/mingw32-headers.spec
+++ b/mingw32-headers.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package mingw32-headers
 #
-# Copyright (c) 2023 SUSE LLC
+# Copyright (c) 2024 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -17,7 +17,7 @@
 
 
 Name:           mingw32-headers
-Version:        11.0.1
+Version:        12.0.0
 Release:        0
 Summary:        MinGW-w64 headers for Win32 and Win64
 License:        SUSE-Public-Domain
@@ -54,9 +54,7 @@ an actual pthread implementation (like winpthreads) is installed.
 %autosetup -n mingw-w64-v%version/mingw-w64-headers -p2
 
 %build
-%_mingw32_configure \
-	--enable-sdk=all \
-	--enable-secure-api
+%_mingw32_configure --enable-sdk=all --with-default-msvcrt=msvcrt
 %make_build
 
 %install