diff --git a/bind.spec b/bind.spec
index 5604d82..bd41a14 100644
--- a/bind.spec
+++ b/bind.spec
@@ -38,7 +38,7 @@ Summary:  The Berkeley Internet Name Domain (BIND) DNS (Domain Name System) serv
 Name:     bind
 License:  MPLv2.0
 Version:  9.11.2
-Release:  9%{?PATCHVER:.%{PATCHVER}}%{?PREVER:.%{PREVER}}%{?dist}
+Release:  10%{?PATCHVER:.%{PATCHVER}}%{?PREVER:.%{PREVER}}%{?dist}
 Epoch:    32
 Url:      http://www.isc.org/products/BIND/
 Buildroot:%{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
@@ -254,6 +254,10 @@ server and utilities in bind-utils package.
 Summary:  License of the BIND DNS suite
 Group:    Applications/System
 BuildArch:noarch
+%if 0%{?fedora} >= 1
+Obsoletes: bind99-license < 9.9.11-3
+Provides:  bind99-license
+%endif
 
 %description license
 Contains license of the BIND DNS suite.
@@ -394,7 +398,10 @@ This package provides a module which allows commands to be sent to rndc directly
 Summary:   ISC libs for DHCP application
 Group:     System Environment/Libraries
 Requires:  bind-license = %{epoch}:%{version}-%{release}
-Conflicts: bind99-license
+%if 0%{?fedora} >= 1
+Obsoletes: bind99-libs < 9.9.11-3
+Provides:  bind99-libs
+%endif
 
 %description export-libs
 Set of ISC libraries for client applications (like ISC DHCP).
@@ -403,6 +410,10 @@ Set of ISC libraries for client applications (like ISC DHCP).
 Summary:  Header files and libraries needed for BIND export libraries
 Group:    Development/Libraries
 Requires: bind-export-libs%{?_isa} = %{epoch}:%{version}-%{release}
+%if 0%{?fedora} >= 1
+Obsoletes: bind99-libs-devel < 9.9.11-3
+Provides:  bind99-libs-devel
+%endif
 
 %description export-libs-devel
 %{summary}
@@ -542,9 +553,11 @@ pushd build
   --enable-full-report \
 ;
 make %{?_smp_mflags}
+
 ### FIXME hack!!!
-### make doesn't find properly configured files
+### xsltproc doesn't find properly configured files
 ### and use ones from source tree
+### copy generated files to the original location
 cp -rv doc/* ../doc/
 
 
@@ -584,14 +597,21 @@ pushd export-libs
         --includedir=%{_includedir}/%{_export_dir}/ \
         --disable-threads \
         --enable-full-report
+
 ## We don't want to build other libs than -export twice
 ## FIXME this should be in patch instead of SED'ing
-## but do we really like/want to patch generated files? 
-sed '/^SUBDIRS =/s/.*/SUBDIRS = make lib/i' -i Makefile
-sed "/^SUBDIRS =/s/.*/SUBDIRS = %{bind_export_libs}/i" -i lib/Makefile
+## but do we really like/want to patch generated files?
+
+sed -i -e \
+'/^SUBDIRS =/s/.*/SUBDIRS = make lib/i' \
+Makefile
+
+sed -i -e \
+"/^SUBDIRS =/s/.*/SUBDIRS = %{bind_export_libs}/i" \
+lib/Makefile
+
 for lib in %{bind_export_libs}
 do
-        echo "Replacing ${lib} with ${lib}-export"
         find .  -name Makefile -exec sed  "s/lib${lib}\./lib${lib}-export\./g" -i {} \;
 done;
 make %{?_smp_mflags}
@@ -599,8 +619,6 @@ popd
 ## End of export libs
 %endif
 
-
-
 %check
 %if %{PKCS11}
   # Tests require initialization of pkcs11 token
@@ -1289,10 +1307,13 @@ rm -rf ${RPM_BUILD_ROOT}
 %endif
 
 %changelog
-* Fri Jan 19 2018 Pavel Zhukov <pzhukov@redhat.com> - 32:9.11.2-9.P1
+* Wed Feb 07 2018 Pavel Zhukov <pzhukov@redhat.com> - 32:9.11.2-10.P1
+- Add obsoletes/provides tags for smooth update
+
+* Wed Feb 07 2018 Pavel Zhukov <pzhukov@redhat.com> - 32:9.11.2-9.P1
 - Build devel package for export-libs
 
-* Thu Jan 18 2018 Pavel Zhukov <pzhukov@redhat.com> - 32:9.11.2-8.P1
+* Wed Feb 07 2018 Pavel Zhukov <pzhukov@redhat.com> - 32:9.11.2-8.P1
 - Build export libraries with disabled threads and selects
 
 * Wed Feb 07 2018 Fedora Release Engineering <releng@fedoraproject.org> - 32:9.11.2-7.P1