diff --git a/compile.sh b/compile.sh
index e7db85aad9..70530cc584 100755
--- a/compile.sh
+++ b/compile.sh
@@ -11,7 +11,7 @@
 
 # DO NOT EDIT THIS FILE
 # use configuration files like config-default.conf to set the build configuration
-# check Armbian documentation for more info
+# check Armbian documentation https://docs.armbian.com/ for more info
 
 SRC="$(dirname "$(realpath "${BASH_SOURCE[0]}")")"
 
@@ -39,10 +39,10 @@ check_args ()
 			# Take a variable if the branch exists locally
 			if [ "${p#*=}" == "$(git branch | \
 				gawk -v b="${p#*=}" '{if ( $NF == b ) {print $NF}}')" ]; then
-				echo "Setting $p"
+				echo -e "[\e[0;35m warn \x1B[0m] Setting $p"
 				eval "$p"
 			else
-				echo "Skip $p Set as LIB_TAG=\"\""
+				echo -e "[\e[0;35m warn \x1B[0m] Skip $p setting as LIB_TAG=\"\""
 				eval LIB_TAG=""
 			fi
 			;;
@@ -74,7 +74,7 @@ update_src() {
 					echo "Unknown command!"
 				fi
 			done
-		else
+		elif [[ $(git branch | grep "*" | awk '{print $2}') != "${LIB_TAG}" && -n "${LIB_TAG}" ]]; then
 			git checkout "${LIB_TAG:-master}"
 			git pull
 		fi
@@ -187,15 +187,6 @@ if [[ "${1}" == docker && -f /etc/debian_version && -z "$(command -v docker)" ]]
 	exit $?
 fi
 
-# check if Docker version is high enough
-[[ $(systemd-detect-virt) == 'none' ]] && dockerversion=$(docker version | grep runc -A1 | tail -n 1 | awk '{print $2}')
-if [[ "${1}" == docker && -n ${dockerversion} ]] && linux-version compare "${dockerversion}" lt 1.0.0-rc93; then
-	display_alert "Your Docker engine is too old - using Docker from nigtly builds" "Required > 1.0.0-rc92" "wrn"
-	sed -i "s/edge/nightly/" /etc/apt/sources.list.d/docker.list
-	apt-get update
-	apt-get upgrade -y -qq
-fi
-
 # Create userpatches directory if not exists
 mkdir -p "${SRC}"/userpatches
 
diff --git a/config/distributions/README.md b/config/distributions/README.md
new file mode 100644
index 0000000000..cba81488eb
--- /dev/null
+++ b/config/distributions/README.md
@@ -0,0 +1,9 @@
+## Upstream distributions status
+
+Supported Debian and Ubuntu upstream distributions / packages base. Here we define their status:
+
+|support|description|
+|:--|:--|
+|supported|current package base|
+|csc           |unstable, work in progress|
+|eos           |former stable, end of life|
diff --git a/config/sources/families/README.md b/config/sources/families/README.md
index 8fd1ae0682..7d6489bacc 100644
--- a/config/sources/families/README.md
+++ b/config/sources/families/README.md
@@ -12,4 +12,6 @@
 | Allwinner sun6i : sunxi | sun50iw1 : sunxi64 |
 | Allwinner sun7i : sunxi | sun50iw2 : sunxi64 |
 | Allwinner sun8i : sunxi | sun50iw6 : sunxi64 |
-| Allwinner sun9i : sunxi                             |                                 |
+| Allwinner sun9i : sunxi                             | virtual : qemu-virtual                            |
+|| zynq : zynq |
+|| jetson-nano : jetson-nano |
diff --git a/lib/distributions.sh b/lib/distributions.sh
index bc35e1a3fe..4e670b3291 100644
--- a/lib/distributions.sh
+++ b/lib/distributions.sh
@@ -610,14 +610,7 @@ install_distribution_specific()
 			chroot "${SDCARD}" /bin/bash -c "systemctl disable  motd-news.service >/dev/null 2>&1"
 			chroot "${SDCARD}" /bin/bash -c "systemctl disable  motd-news.timer >/dev/null 2>&1"
 
-			rm -f "${SDCARD}"/etc/update-motd.d/10-uname
-			rm -f "${SDCARD}"/etc/update-motd.d/10-help-text
-			rm -f "${SDCARD}"/etc/update-motd.d/50-motd-news
-			rm -f "${SDCARD}"/etc/update-motd.d/80-esm
-			rm -f "${SDCARD}"/etc/update-motd.d/80-livepatch
-			rm -f "${SDCARD}"/etc/update-motd.d/90-updates-available
-			rm -f "${SDCARD}"/etc/update-motd.d/91-release-upgrade
-			rm -f "${SDCARD}"/etc/update-motd.d/95-hwe-eol
+			rm -f "${SDCARD}"/etc/update-motd.d/{10-uname,10-help-text,50-motd-news,80-esm,80-livepatch,90-updates-available,91-release-upgrade,95-hwe-eol}
 
 			# remove motd news from motd.ubuntu.com
 			[[ -f "${SDCARD}"/etc/default/motd-news ]] && sed -i "s/^ENABLED=.*/ENABLED=0/" "${SDCARD}"/etc/default/motd-news
diff --git a/lib/general.sh b/lib/general.sh
index f3c40b72cc..3fdb8e719c 100644
--- a/lib/general.sh
+++ b/lib/general.sh
@@ -169,7 +169,7 @@ create_sources_list()
 	EOF
 	;;
 
-	xenial|bionic|groovy|focal|groovy|hirsute)
+	xenial|bionic|focal|hirsute)
 	cat <<-EOF > "${basedir}"/etc/apt/sources.list
 	deb http://${UBUNTU_MIRROR} $release main restricted universe multiverse
 	#deb-src http://${UBUNTU_MIRROR} $release main restricted universe multiverse
@@ -807,15 +807,26 @@ addtorepo()
 
 
 
-repo-manipulate() {
-	local DISTROS=("xenial" "stretch" "bionic" "buster" "bullseye" "groovy" "focal" "hirsute" "sid")
+repo-manipulate()
+{
+# repository manipulation
+# "show" displays packages in each repository
+# "server" serve repository - useful for local diagnostics
+# "unique" manually select which package should be removed from all repositories
+# "update" search for new files in output/debs* to add them to repository
+# "purge" leave only last 5 versions
+
+	local DISTROS=($(grep -rw config/distributions/* -e 'supported' | cut -d"/" -f3))
+
 	case $@ in
+
 		serve)
 			# display repository content
 			display_alert "Serving content" "common utils" "ext"
 			aptly serve -listen=$(ip -f inet addr | grep -Po 'inet \K[\d.]+' | grep -v 127.0.0.1 | head -1):80 -config="${SCRIPTPATH}config/${REPO_CONFIG}"
 			exit 0
 			;;
+
 		show)
 			# display repository content
 			for release in "${DISTROS[@]}"; do
@@ -830,6 +841,7 @@ repo-manipulate() {
 			;;
 
 		unique)
+			# which package should be removed from all repositories
 			IFS=$'\n'
 			while true; do
 				LIST=()
@@ -849,7 +861,7 @@ repo-manipulate() {
 				LIST=("${new_list[@]}")
 				LIST_LENGTH=$((${#LIST[@]}/2));
 				exec 3>&1
-				TARGET_VERSION=$(dialog --cancel-label "Cancel" --backtitle "BACKTITLE" --no-collapse --title "Switch from and reboot" --clear --menu "Delete" $((9+${LIST_LENGTH})) 82 65 "${LIST[@]}" 2>&1 1>&3)
+				TARGET_VERSION=$(dialog --cancel-label "Cancel" --backtitle "BACKTITLE" --no-collapse --title "Remove packages from repositories" --clear --menu "Delete" $((9+${LIST_LENGTH})) 82 65 "${LIST[@]}" 2>&1 1>&3)
 				exitstatus=$?;
 				exec 3>&-
 				if [[ $exitstatus -eq 0 ]]; then
@@ -861,8 +873,10 @@ repo-manipulate() {
 				else
 					exit 1
 				fi
+				aptly db cleanup -config="${SCRIPTPATH}config/${REPO_CONFIG}" > /dev/null 2>&1
 			done
 			;;
+
 		update)
 			# display full help test
 			# run repository update
@@ -871,6 +885,7 @@ repo-manipulate() {
 			cp "${SCRIPTPATH}"config/armbian.key "${REPO_STORAGE}"/public/
 			exit 0
 			;;
+
 		purge)
 			for release in "${DISTROS[@]}"; do
 				repo-remove-old-packages "$release" "armhf" "5"
@@ -880,6 +895,7 @@ repo-manipulate() {
 			done
 			exit 0
 			;;
+
 		purgesource)
 			for release in "${DISTROS[@]}"; do
 				aptly repo remove -config="${SCRIPTPATH}config/${REPO_CONFIG}" "${release}" 'Name (% *-source*)'
@@ -889,15 +905,20 @@ repo-manipulate() {
 			exit 0
 			;;
 		*)
-			echo -e "Usage: repository show | serve | create | update | purge\n"
-			echo -e "\n show   = display repository content"
-			echo -e "\n serve  = publish your repositories on current server over HTTP"
-			echo -e "\n update = updating repository"
-			echo -e "\n purge  = removes all but last 5 versions\n\n"
+
+			echo -e "Usage: repository show | serve | unique | create | update | purge | purgesource\n"
+			echo -e "\n show           = display repository content"
+			echo -e "\n serve          = publish your repositories on current server over HTTP"
+			echo -e "\n unique         = manually select which package should be removed from all repositories"
+			echo -e "\n update         = updating repository"
+			echo -e "\n purge          = removes all but last 5 versions"
+			echo -e "\n purgesource    = removes all sources\n\n"
 			exit 0
 			;;
+
 	esac
-} # ParseOptions
+
+}
 
 
 
@@ -917,11 +938,8 @@ repo-remove-old-packages() {
 		pkg_name=$(echo "${pkg}" | cut -d_ -f1)
 		for subpkg in $(aptly repo search -config="${SCRIPTPATH}config/${REPO_CONFIG}" "${repo}" "Name ($pkg_name)"  | grep -v "ERROR: no results" | sort -rt '.' -nk4); do
 			((count+=1))
-#			echo $subpkg
 			if [[ $count -gt $keep ]]; then
-			#echo "rem"
 			pkg_version=$(echo "${subpkg}" | cut -d_ -f2)
-			#echo $pkg_version
 			aptly repo remove -config="${SCRIPTPATH}config/${REPO_CONFIG}" "${repo}" "Name ($pkg_name), Version (= $pkg_version)"
 			fi
 		done
diff --git a/lib/makeboarddeb.sh b/lib/makeboarddeb.sh
index c0dfeb9646..ec35f51222 100644
--- a/lib/makeboarddeb.sh
+++ b/lib/makeboarddeb.sh
@@ -319,30 +319,6 @@ fi
 	mkdir -p "${DEB_STORAGE}/${RELEASE}/"
 	rsync --remove-source-files -rq "${destination}.deb" "${DEB_STORAGE}/${RELEASE}/"
 
-	# Can be removed after 21.05
-	# create meta package for upgrade
-	local DEB_BRANCH=("legacy" "current" "edge")
-	for deb_branch in "${DEB_BRANCH[@]}"; do
-
-	local destination=${bsptempdir}/${RELEASE}/linux-${RELEASE}-root-${deb_branch}-${BOARD}_${REVISION}_${ARCH}
-	mkdir -p "${destination}"/DEBIAN
-	cat <<-EOF > "${destination}"/DEBIAN/control
-	Package: linux-${RELEASE}-root-${deb_branch}-${BOARD}
-	Version: $REVISION
-	Architecture: all
-	Priority: optional
-	Section: oldlibs
-	Maintainer: $MAINTAINER <$MAINTAINERMAIL>
-	Depends: ${BSP_CLI_PACKAGE_NAME}
-	Description: This is a transitional package. It can safely be removed.
-	EOF
-	display_alert "Building meta  package" "$CHOSEN_ROOTFS" "info"
-	fakeroot dpkg-deb -b "${destination}" "${destination}.deb" >> "${DEST}"/debug/install.log 2>&1
-	mkdir -p "${DEB_STORAGE}/${RELEASE}/"
-	rsync --remove-source-files -rq "${destination}.deb" "${DEB_STORAGE}/${RELEASE}/"
-	done
-	# Can be removed after 21.05
-
 	# cleanup
 	rm -rf ${bsptempdir}
 }