diff --git a/package_specs/generate-patches.sh b/package_specs/generate-patches.sh
index 898473274..314d69f32 100755
--- a/package_specs/generate-patches.sh
+++ b/package_specs/generate-patches.sh
@@ -3,7 +3,7 @@
 scriptroot="$(dirname "$(realpath "$0")")"
 
 vendors=( deltacast blackmagick dvs aja bluefish cuda )
-subpackages=( ultragrid-nightly ultragrid ultragrid-proprietary-drivers )
+subpackages=( ultragrid-nightly ultragrid $(echo "ultragrid-proprietary-drivers"* ) )
 
 mkdir a
 for pkg in ${subpackages[*]} ; do
diff --git a/package_specs/outdate-drivers.sh b/package_specs/outdate-drivers.sh
new file mode 100755
index 000000000..aa95def58
--- /dev/null
+++ b/package_specs/outdate-drivers.sh
@@ -0,0 +1,115 @@
+#!/bin/bash
+
+function patch_file(){
+	local filename="$2"
+	local entry="$1"
+	local lockplace="# replace this line with generated conflicts"
+	grep -vE '^((Provides)|(Conflicts))[:]?[[:space:]]*ultragrid-proprietary-drivers.*' "$filename" > "$filename.$$"
+	sed -i "s/$lockplace.*\$/$entry\n$lockplace/g" "$filename.$$"
+	mv "$filename.$$" "$filename"
+}
+function patch_pkgname(){
+	local filename="$1"
+	local entry="$2"
+	sed -ri "/^Source:.*\$/b; s/ultragrid-proprietary-drivers((-rpmlintrc)?)\$/ultragrid-proprietary-drivers-$entry\1/g" "$filename"
+	sed -ri "s/^ultragrid-proprietary-drivers\b/ultragrid-proprietary-drivers-$entry/g" "$filename"
+}
+function move_file(){
+	local lintfile="$1"
+	local lockver="$2"
+	mv "$lintfile" "$(echo "$lintfile" | sed "s#ultragrid-proprietary-drivers#ultragrid-proprietary-drivers-$lockver#g")"
+}
+function debdirpatch(){
+	local prefix="$1"
+	local archivefile="$2"
+	local lockver="$3"
+	local conflicttext="$4"
+	local providetext="$5"
+
+	if [[ "x$archivefile" != "x" ]] && [[ -f "$archivefile" ]] ; then
+		rm -rf debian
+		tar -xf "$debarchive"
+	fi
+
+	if [[ -f "${prefix}control" ]] ; then
+		patch_file "$conflicttext\n$providetext" "${prefix}control"
+		patch_pkgname "${prefix}control" "$lockver"
+	fi
+	
+	local installfile="${prefix}ultragrid-proprietary-drivers.install"
+	if [[ -f "$installfile" ]] ; then
+		move_file "$installfile" "$lockver"
+	fi
+
+	for lintfile in "${prefix}"*lintian* "${prefix}"source/*lintian*  ; do 
+		test -f "$lintfile" || continue
+		patch_pkgname "$lintfile" "$lockver"
+	done
+
+	if [[ "x$archivefile" != "x" ]] && [[ -f "$archivefile" ]] ; then
+		tar -c debian -zf "$debarchive"
+		rm -rf debian
+	fi
+}
+function err_exit(){
+	printf "%s\n" "$1" >&2
+	exit $2
+}
+
+scriptroot="$(dirname "$(realpath "$0")")"
+
+driverssubdir=ultragrid-proprietary-drivers
+lockver="$1"
+newdir="$scriptroot/$driverssubdir-$lockver"
+
+[[ "x$lockver" != "x" ]] || err_exit "usage: $0 <version to branch> <space separated conflicting versions>" 1
+[[ -d "$newdir" ]] && err_exit "directory $newdir allready exists, I refuse to run!" 1
+
+shift
+
+providetext="Provides:\tultragrid-proprietary-drivers-release-$lockver"
+conflicttext="Conflicts:"
+sep="\t"
+for version in $(printf "%s" "$*" | sed -r 's#\b([[:digit:].]+)#release-\1#g') nightly ; do
+	conflicttext+="${sep}ultragrid-proprietary-drivers-$version"
+	sep=", "
+done
+
+cp -r "$scriptroot/$driverssubdir" "$newdir"
+
+pushd "$newdir"
+
+debdirpatch "debian." "" "$lockver" "$conflicttext" "$providetext"
+
+for debarchive in debian*.tar.gz ; do
+	debdirpatch "debian/" "$debarchive" "$lockver"  "$conflicttext" "$providetext"
+done
+
+#patch package name in rpmspec
+for specfile in *.spec ; do
+	test -f "$specfile" || continue
+	sed -i "s#-rpmlintrc\$#-$lockver-rpmlintrc#g" "$specfile"
+	patch_file "$conflicttext\n$providetext" "$specfile"
+	patch_pkgname "$specfile" "$lockver"
+done
+#patch package name in debian file
+for dscfile in *.dsc ; do
+	test -f "$dscfile" || continue
+	patch_pkgname "$dscfile" "$lockver"
+done
+
+# process rpmlintrc
+for lintfile in *-rpmlintrc ; do
+	test -f "$lintfile" || continue
+	sed -i "s#ultragrid-proprietary-drivers#ultragrid-proprietary-drivers-$lockver#g" "$lintfile"
+done
+
+for lintfile in *rpmlintrc *.spec *.dsc ; do
+	test -f "$lintfile" || continue
+	move_file "$lintfile" "$lockver"
+done
+
+for servicefile in _service* ; do
+	sed -i "s#package_specs/ultragrid-proprietary-drivers/#package_specs/ultragrid-proprietary-drivers-$lockver/#g" "$servicefile"
+done
+popd
diff --git a/package_specs/ultragrid-proprietary-drivers/debian.tar.gz b/package_specs/ultragrid-proprietary-drivers/debian.tar.gz
index ce37c7f8c..e19a9300f 100644
Binary files a/package_specs/ultragrid-proprietary-drivers/debian.tar.gz and b/package_specs/ultragrid-proprietary-drivers/debian.tar.gz differ
diff --git a/package_specs/ultragrid-proprietary-drivers/ultragrid-proprietary-drivers.spec b/package_specs/ultragrid-proprietary-drivers/ultragrid-proprietary-drivers.spec
index d757ece9d..f64ce7688 100644
--- a/package_specs/ultragrid-proprietary-drivers/ultragrid-proprietary-drivers.spec
+++ b/package_specs/ultragrid-proprietary-drivers/ultragrid-proprietary-drivers.spec
@@ -7,6 +7,8 @@ Group:		Applications/Multimedia
 License: 	GPL
 URL:		http://ultragrid.cz
 
+# replace this line with generated conflicts
+Provides:	ultragrid-proprietary-drivers-nightly, ultragrid-proprietary-drivers-release-1.5, ultragrid-proprietary-drivers-release-1.4
 BuildRequires:	gcc-c++, make, automake, autoconf, coreutils
 BuildRequires: 	libX11-devel, glew-devel, libXext-devel, glibc, ncurses-devel, qt-devel
 BuildRequires:	%kernel_module_package_buildreqs , kernel