diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000000000000000000000000000000000000..8b07dd7828f72b0cb2345ae0f4d295507305991f
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1 @@
+*.gz filter=lfs diff=lfs merge=lfs -text
\ No newline at end of file
diff --git a/.lfsconfig b/.lfsconfig
new file mode 100644
index 0000000000000000000000000000000000000000..d4809a9283ef794cadf57b349f66618cef27c772
--- /dev/null
+++ b/.lfsconfig
@@ -0,0 +1,2 @@
+[lfs]
+	url = https://artlfs.openeuler.openatom.cn/src-openEuler/llvm-toolset-17
\ No newline at end of file
diff --git a/llvm-for-oE-17.0.6-2503.0.1.tar.gz b/llvm-for-oE-17.0.6-2503.0.1.tar.gz
deleted file mode 100644
index 0ab84e1a91541361cb683fcb8ec76e050ea98553..0000000000000000000000000000000000000000
Binary files a/llvm-for-oE-17.0.6-2503.0.1.tar.gz and /dev/null differ
diff --git a/llvm-for-oE-17.0.6-2506.0.4.tar.gz b/llvm-for-oE-17.0.6-2506.0.4.tar.gz
new file mode 100644
index 0000000000000000000000000000000000000000..171f896de39b0f6dac45da2dda89362360f79b53
--- /dev/null
+++ b/llvm-for-oE-17.0.6-2506.0.4.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:db05405706279885e543dd562d7f2887fd433eb10dae819811df7d588e8548b3
+size 212541296
diff --git a/llvm-toolset-17.spec b/llvm-toolset-17.spec
index a1768e4d2502685dfac6b40df3718e5969d1d6cd..dda9613de723a34c62ad93297bde91eecdc9d2df 100644
--- a/llvm-toolset-17.spec
+++ b/llvm-toolset-17.spec
@@ -30,7 +30,7 @@
 
 %undefine __cmake_in_source_build
 
-%global src_tarball llvm-for-oE-17.0.6-2503.0.1
+%global src_tarball llvm-for-oE-17.0.6-2506.0.4
 %global src_tarball_dir llvm-project-%{src_tarball}
 
 #region LLVM globals
@@ -150,7 +150,7 @@
 #region main package
 Name:		  llvm-toolset-%{maj_ver}
 Version:	%{maj_ver}.%{min_ver}.%{patch_ver}
-Release:	6
+Release:	9
 Summary:	The Low Level Virtual Machine
 
 License:	NCSA
@@ -456,6 +456,8 @@ Requires:	%{pkg_name_clang}-tools-extra = %{version}-%{release}
 Requires:	git
 Requires:	python3
 
+Obsoletes:%{?scl_prefix}git-clang-format17 < %{version}-%{release}
+
 %description -n %{?scl_prefix}git-clang-format
 clang-format integration for git.
 
@@ -501,6 +503,7 @@ Requires: %{pkg_name_llvm}-libs%{?_isa} = %{version}-%{release}
 Requires: elfutils-libelf
 
 Provides: libomp(major) = %{maj_ver}
+Obsoletes: %{?scl_prefix}libomp < %{version}-%{release}
 
 %description -n %{pkg_name_libomp}
 OpenMP runtime for clang.
@@ -514,6 +517,7 @@ Requires: %{pkg_name_libomp}%{?_isa} = %{version}-%{release}
 Requires: %{pkg_name_clang}-resource-filesystem%{?_isa} = %{version}-%{release}
 
 Provides: libomp-devel(major) = %{maj_ver}
+Obsoletes: %{?scl_prefix}libomp-devel < %{version}-%{release}
 
 %description  -n %{pkg_name_libomp}-devel
 OpenMP header files.
@@ -2772,6 +2776,15 @@ fi
 #endregion files
 
 %changelog
+* Wed Jun 25 2025 liyunfei liyunfei33@huawei.com - 17.0.6-9
+- update to llvm-for-oe-17.0.6-2506.0.4
+
+* Mon Mar 24 2025 liyunfei liyunfei33@huawei.com - 17.0.6-8
+- Add obsoletes for old version libomp and git-clang-format17
+
+* Mon Mar 17 2025 liyunfei liyunfei33@huawei.com - 17.0.6-7
+- update to llvm-for-oE-17.0.6-2503.0.2
+
 * Mon Mar 3 2025 liyunfei liyunfei33@huawei.com - 17.0.6-6
 - fix cmake version requirment for 2003 build