diff --git a/checkmedia-3.8.tar.xz b/checkmedia-3.8.tar.xz
deleted file mode 100644
index 83c8435..0000000
--- a/checkmedia-3.8.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:2b07912e27f6c09352c0fcff6997c0771d60f2868f29e2b930140ab57585571d
-size 35244
diff --git a/checkmedia-4.0.tar.xz b/checkmedia-4.0.tar.xz
new file mode 100644
index 0000000..89c76e4
--- /dev/null
+++ b/checkmedia-4.0.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:07a2c329d145beb4f50787e190fb5fc30e88ac319e45e1b626479495c61629e6
+size 45664
diff --git a/checkmedia.changes b/checkmedia.changes
index 4e811e4..988836b 100644
--- a/checkmedia.changes
+++ b/checkmedia.changes
@@ -1,3 +1,21 @@
+--------------------------------------------------------------------
+Fri Jun 29 10:55:47 UTC 2018 - wfeldt@opensuse.org
+
+- merge gh#openSUSE/checkmedia#6
+- change tagmedia to also store checksum over partition
+  (bsc#1000947)
+- update Makefile
+- update documentation
+- rewrite checkmedia to use new mediacheck library
+- digestdemo: add simple demo tool for libmediacheck usage
+- mediacheck library header file
+- mediacheck library code
+- add test tool for mediachecks
+- test data
+- enhance code
+- fix typo in tagmedia
+- 4.0
+
 --------------------------------------------------------------------
 Thu Apr 26 14:44:26 UTC 2018 - wfeldt@opensuse.org
 
diff --git a/checkmedia.spec b/checkmedia.spec
index d16b39f..57b1f78 100644
--- a/checkmedia.spec
+++ b/checkmedia.spec
@@ -16,18 +16,36 @@
 #
 
 
+%define libversion 4
+
 Name:           checkmedia
-Summary:        Check Installation Media
-License:        GPL-3.0+
+Summary:        Check SUSE installation media
+License:        GPL-3.0-or-later
 Group:          System/Management
-Version:        3.8
+Version:        4.0
 Release:        0
-Url:            https://github.com/wfeldt/checkmedia.git
+Url:            https://github.com/openSUSE/checkmedia
 Source:         %{name}-%{version}.tar.xz
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 
 %description
-Checks installation CDs and DVDs for errors.
+Check SUSE installation media for errors.
+
+%package -n     libmediacheck%{libversion}
+Summary:        Library for checking SUSE installation media
+Group:          System/Libraries
+PreReq:         /sbin/ldconfig
+
+%description -n libmediacheck%{libversion}
+Library for checking SUSE installation media. Used by checkmedia and linuxrc.
+
+%package -n     libmediacheck-devel
+Summary:        Library for checking SUSE installation media
+Group:          Development/Libraries/C and C++
+Requires:       libmediacheck%{libversion} = %version
+
+%description -n libmediacheck-devel
+Library for checking SUSE installation media. Used by checkmedia and linuxrc.
 
 %prep
 %setup
@@ -35,15 +53,32 @@ Checks installation CDs and DVDs for errors.
 %build
 make %{?_smp_mflags}
 
+%check
+make test
+
 %install
-  install -d -m 755 %{buildroot}/usr/bin
-  make install DESTDIR=%{buildroot}
+install -d -m 755 %{buildroot}/usr/bin
+make install DESTDIR=%{buildroot}
+
+%post -n libmediacheck4 -p /sbin/ldconfig
+
+%postun -n libmediacheck4 -p /sbin/ldconfig
 
 %files
 %defattr(-,root,root)
 /usr/bin/checkmedia
 /usr/bin/tagmedia
+
+%files -n libmediacheck%{libversion}
+%defattr(-,root,root)
+%{_libdir}/*.so.*
 %doc README.md
+%doc mediacheck.md
 %doc COPYING
 
+%files -n libmediacheck-devel
+%defattr(-,root,root)
+%{_libdir}/*.so
+%{_includedir}/mediacheck.h
+
 %changelog