diff --git a/SPECS/ima-evm-utils.spec b/SPECS/ima-evm-utils.spec
index de82f2e..af59d3b 100644
--- a/SPECS/ima-evm-utils.spec
+++ b/SPECS/ima-evm-utils.spec
@@ -1,12 +1,20 @@
+%global compat_soversion 0
+
 Name:    ima-evm-utils
 Version: 1.3.2
-Release: 11%{?dist}
+Release: 12%{?dist}
 Summary: IMA/EVM support utilities
 License: GPLv2
 Url:     http://linux-ima.sourceforge.net/
 Source:  http://sourceforge.net/projects/linux-ima/files/ima-evm-utils/%{name}-%{version}.tar.gz
+Source10: ima-evm-utils-1.1.tar.gz
 
 Patch0: 0001-Fix-sign_hash-not-observing-the-hashalgo-argument.patch
+# compat patches
+Patch1: docbook-xsl-path.patch
+Patch2: covscan-memory-leaks.patch
+Patch3: annocheck-opt-flag.patch
+Patch4: libimaevm-keydesc-import.patch
 
 BuildRequires: asciidoc
 BuildRequires: autoconf
@@ -17,8 +25,10 @@ BuildRequires: libtool
 BuildRequires: libxslt
 BuildRequires: openssl-devel
 BuildRequires: tpm2-tss-devel
+# compat requirement
+BuildRequires: libattr-devel
 
-Requires: tpm2-tss
+#Requires: tpm2-tss
 
 %description
 The Trusted Computing Group(TCG) run-time Integrity Measurement Architecture
@@ -35,10 +45,31 @@ Requires: %{name} = %{version}-%{release}
 %description devel
 This package provides the header files for %{name}
 
+%package -n %{name}%{compat_soversion}
+Summary: Compatibility package of %{name}
+
+%description -n %{name}%{compat_soversion}
+This package provides the libimaevm.so.%{compat_soversion} relative to %{name}-1.1
+
 %prep
-%autosetup -p1
+%setup -q
+%patch0 -p1
+mkdir compat/
+tar -zxf %{SOURCE10} --strip-components=1 -C compat/
+cd compat/
+%patch1 -p1
+%patch2 -p1
+%patch3 -p1
+%patch4 -p1
 
 %build
+# build compat version of the package
+pushd compat/
+autoreconf -vif
+%configure --disable-static
+%make_build
+popd
+
 autoreconf -vif
 %configure --disable-static
 %make_build
@@ -46,6 +77,11 @@ autoreconf -vif
 %install
 %make_install
 find %{buildroot}%{_libdir} -type f -name "*.la" -print -delete
+# install compat libs
+pushd compat/src/.libs/
+install -p libimaevm.so.%{compat_soversion}.0.0 %{buildroot}%{_libdir}/libimaevm.so.%{compat_soversion}.0.0
+ln -s -f %{buildroot}%{_libdir}/libimaevm.so.%{compat_soversion}.0.0 %{buildroot}%{_libdir}/libimaevm.so.%{compat_soversion}
+popd
 
 %ldconfig_scriptlets
 
@@ -63,7 +99,14 @@ find %{buildroot}%{_libdir} -type f -name "*.la" -print -delete
 %{_includedir}/*
 %{_libdir}/libimaevm.so
 
+%files -n %{name}%{compat_soversion}
+%{_libdir}/libimaevm.so.%{compat_soversion}
+%{_libdir}/libimaevm.so.%{compat_soversion}.0.0
+
 %changelog
+* Thu Feb 18 2021 Bruno Meneguele <bmeneg@redhat.com> - 1.3.2-12
+- Add compat subpackage for keeping the API stability in userspace
+
 * Mon Jan 25 2021 Bruno Meneguele <bmeneg@redhat.com> - 1.3.2-11
 - Bump release number for yet another rebuild