diff --git a/install.sh b/install.sh
index f8a4536..8758e55 100644
--- a/install.sh
+++ b/install.sh
@@ -1163,7 +1163,7 @@ update_background_check() {
 }
 
 update_if_needed() {
-   
+
 	download_if_needed "$@"
 
 	local lastDownload=$(read_or_default "$UPDATES_DIR/downloaded" "???")
@@ -1180,105 +1180,112 @@ update_if_needed() {
 			fi
 		else
 
-			local changed=0
-			local redeploy=0
-
-			local instOnlineVer=$(extract_version "$(<"$UPDATES_DIR/install.sh")")
-			local depEnvOnlineVer=$(extract_version "$(<"$UPDATES_DIR/deployment.env")")
-			local nsEnvOnlineVer=$(extract_version "$(<"$UPDATES_DIR/nightscout.env")")
-			local compOnlineVer=$(extract_version "$(<"$UPDATES_DIR/docker-compose.yml")")
-
-			local instLocalVer=$(extract_version "$(<"$TOOL_FILE")")
-			local depEnvLocalVer=$(extract_version "$(<"$ENV_FILE_DEP")")
-			local nsEnvLocalVer=$(extract_version "$(<"$ENV_FILE_NS")")
-			local compLocalVer=$(extract_version "$(<"$DOCKER_COMPOSE_FILE")")
+			if [ $# -eq 0 ] && [ "$UPDATE_CHANNEL" == "master" ] && [[ "$lastDownload" < "$updateInstalled" ]]; then
+				msgnote "Downgrade not possible on master channel"
+				forceUpdateCheck=1
+				download_if_needed
+			else
 
-			local msgInst="$(printf "\U1F7E2") $instLocalVer"
-			local msgDep="$(printf "\U1F7E2") $depEnvLocalVer"
-			local msgNs="$(printf "\U1F7E2") $nsEnvLocalVer"
-			local msgComp="$(printf "\U1F7E2") $compLocalVer"
+				local changed=0
+				local redeploy=0
 
-			if ! [ "$instOnlineVer" == "$instLocalVer" ] || ! [ "$lastDownload" == "$updateInstalled" ]; then
-				changed=$((changed + 1))
-				msgInst="$(printf "\U1F534") $instLocalVer $(printf "\U27A1") $instOnlineVer"
-			fi
+				local instOnlineVer=$(extract_version "$(<"$UPDATES_DIR/install.sh")")
+				local depEnvOnlineVer=$(extract_version "$(<"$UPDATES_DIR/deployment.env")")
+				local nsEnvOnlineVer=$(extract_version "$(<"$UPDATES_DIR/nightscout.env")")
+				local compOnlineVer=$(extract_version "$(<"$UPDATES_DIR/docker-compose.yml")")
 
-			if ! [ "$depEnvLocalVer" == "$depEnvOnlineVer" ]; then
-				changed=$((changed + 1))
-				redeploy=$((redeploy + 1))
-				msgDep="$(printf "\U1F534") $depEnvLocalVer $(printf "\U27A1") $depEnvOnlineVer"
-			fi
+				local instLocalVer=$(extract_version "$(<"$TOOL_FILE")")
+				local depEnvLocalVer=$(extract_version "$(<"$ENV_FILE_DEP")")
+				local nsEnvLocalVer=$(extract_version "$(<"$ENV_FILE_NS")")
+				local compLocalVer=$(extract_version "$(<"$DOCKER_COMPOSE_FILE")")
 
-			if ! [ "$nsEnvLocalVer" == "$nsEnvOnlineVer" ]; then
-				changed=$((changed + 1))
-				redeploy=$((redeploy + 1))
-				msgNs="$(printf "\U1F534") $nsEnvLocalVer $(printf "\U27A1") $nsEnvOnlineVer"
-			fi
+				local msgInst="$(printf "\U1F7E2") $instLocalVer"
+				local msgDep="$(printf "\U1F7E2") $depEnvLocalVer"
+				local msgNs="$(printf "\U1F7E2") $nsEnvLocalVer"
+				local msgComp="$(printf "\U1F7E2") $compLocalVer"
 
-			if ! [ "$compLocalVer" == "$compOnlineVer" ]; then
-				changed=$((changed + 1))
-				redeploy=$((redeploy + 1))
-				msgComp="$(printf "\U1F534") $compLocalVer $(printf "\U27A1") $compOnlineVer"
-			fi
-
-			if [ "$changed" -eq 0 ]; then
-				if [ $# -eq 1 ]; then
-					msgok "Scripts and config files are up to date"
-					okdlg "Aktualizacja skryptów" "$1"
-				fi
-			else
-				local okTxt=""
-				if [ "$redeploy" -gt 0 ]; then
-					okTxt="${TL}${uni_warn} Aktualizacja zrestartuje i zaktualizuje kontenery ${uni_warn}"
+				if ! [ "$instOnlineVer" == "$instLocalVer" ] || ! [ "$lastDownload" == "$updateInstalled" ]; then
+					changed=$((changed + 1))
+					msgInst="$(printf "\U1F534") $instLocalVer $(printf "\U27A1") $instOnlineVer"
 				fi
 
-				local versionMsg="${TL}Build: ${updateInstalled}"
-				if [ ! "$lastDownload" == "$updateInstalled" ]; then
-					versionMsg="$(pad_multiline "${TL}Masz build: ${updateInstalled}${NL}  Dostępny: ${lastDownload}")"
+				if ! [ "$depEnvLocalVer" == "$depEnvOnlineVer" ]; then
+					changed=$((changed + 1))
+					redeploy=$((redeploy + 1))
+					msgDep="$(printf "\U1F534") $depEnvLocalVer $(printf "\U27A1") $depEnvOnlineVer"
 				fi
 
-				yesnodlg "Aktualizacja skryptów" "$uni_confirm_upd" "$uni_resign" \
-					"Zalecana jest aktualizacja plików:${versionMsg}" \
-					"$(
-						pad_multiline \
-							"${TL}${uni_bullet}Skrypt instalacyjny:      $msgInst" \
-							"${NL}${uni_bullet}Konfiguracja deploymentu: $msgDep" \
-							"${NL}${uni_bullet}Konfiguracja Nightscout:  $msgNs" \
-							"${NL}${uni_bullet}Kompozycja usług:         $msgComp${NL}"
-					)" \
-					"$okTxt"
-
-				if ! [ $? -eq 1 ]; then
+				if ! [ "$nsEnvLocalVer" == "$nsEnvOnlineVer" ]; then
+					changed=$((changed + 1))
+					redeploy=$((redeploy + 1))
+					msgNs="$(printf "\U1F534") $nsEnvLocalVer $(printf "\U27A1") $nsEnvOnlineVer"
+				fi
 
-					clear_last_time "update_needed"
+				if ! [ "$compLocalVer" == "$compOnlineVer" ]; then
+					changed=$((changed + 1))
+					redeploy=$((redeploy + 1))
+					msgComp="$(printf "\U1F534") $compLocalVer $(printf "\U27A1") $compOnlineVer"
+				fi
 
+				if [ "$changed" -eq 0 ]; then
+					if [ $# -eq 1 ]; then
+						msgok "Scripts and config files are up to date"
+						okdlg "Aktualizacja skryptów" "$1"
+					fi
+				else
+					local okTxt=""
 					if [ "$redeploy" -gt 0 ]; then
-						docker_compose_down
+						okTxt="${TL}${uni_warn} Aktualizacja zrestartuje i zaktualizuje kontenery ${uni_warn}"
 					fi
 
-					if ! [ "$compOnlineVer" == "$compLocalVer" ]; then
-						ohai "Updating $DOCKER_COMPOSE_FILE"
-						cp -fr "$UPDATES_DIR/docker-compose.yml" "$DOCKER_COMPOSE_FILE"
+					local versionMsg="${TL}Build: ${updateInstalled}"
+					if [ ! "$lastDownload" == "$updateInstalled" ]; then
+						versionMsg="$(pad_multiline "${TL}Masz build: ${updateInstalled}${NL}  Dostępny: ${lastDownload}")"
 					fi
 
-					if ! [ "$depEnvLocalVer" == "$depEnvOnlineVer" ]; then
-						ohai "Updating $ENV_FILE_DEP"
-						dotenv-tool -pr -o "$ENV_FILE_DEP" -i "$UPDATES_DIR/deployment.env" "$ENV_FILE_DEP"
-					fi
+					yesnodlg "Aktualizacja skryptów" "$uni_confirm_upd" "$uni_resign" \
+						"Zalecana jest aktualizacja plików:${versionMsg}" \
+						"$(
+							pad_multiline \
+								"${TL}${uni_bullet}Skrypt instalacyjny:      $msgInst" \
+								"${NL}${uni_bullet}Konfiguracja deploymentu: $msgDep" \
+								"${NL}${uni_bullet}Konfiguracja Nightscout:  $msgNs" \
+								"${NL}${uni_bullet}Kompozycja usług:         $msgComp${NL}"
+						)" \
+						"$okTxt"
 
-					if ! [ "$nsEnvLocalVer" == "$nsEnvOnlineVer" ]; then
-						ohai "Updating $ENV_FILE_NS"
-						dotenv-tool -pr -o "$ENV_FILE_NS" -i "$UPDATES_DIR/deployment.env" "$ENV_FILE_NS"
-					fi
+					if ! [ $? -eq 1 ]; then
+
+						clear_last_time "update_needed"
+
+						if [ "$redeploy" -gt 0 ]; then
+							docker_compose_down
+						fi
 
-					echo "$lastDownload" >"$UPDATES_DIR/updated"
+						if ! [ "$compOnlineVer" == "$compLocalVer" ]; then
+							ohai "Updating $DOCKER_COMPOSE_FILE"
+							cp -fr "$UPDATES_DIR/docker-compose.yml" "$DOCKER_COMPOSE_FILE"
+						fi
+
+						if ! [ "$depEnvLocalVer" == "$depEnvOnlineVer" ]; then
+							ohai "Updating $ENV_FILE_DEP"
+							dotenv-tool -pr -o "$ENV_FILE_DEP" -i "$UPDATES_DIR/deployment.env" "$ENV_FILE_DEP"
+						fi
 
-					if ! [ "$instOnlineVer" == "$instLocalVer" ] || ! [ "$lastDownload" == "$updateInstalled" ]; then
-						ohai "Updating $TOOL_FILE"
-						cp -fr "$UPDATES_DIR/install.sh" "$TOOL_FILE"
-						okdlg "Aktualizacja zakończona" "Narzędzie zostanie uruchomione ponownie"
-						ohai "Restarting tool"
-						exec "$TOOL_FILE"
+						if ! [ "$nsEnvLocalVer" == "$nsEnvOnlineVer" ]; then
+							ohai "Updating $ENV_FILE_NS"
+							dotenv-tool -pr -o "$ENV_FILE_NS" -i "$UPDATES_DIR/deployment.env" "$ENV_FILE_NS"
+						fi
+
+						echo "$lastDownload" >"$UPDATES_DIR/updated"
+
+						if ! [ "$instOnlineVer" == "$instLocalVer" ] || ! [ "$lastDownload" == "$updateInstalled" ]; then
+							ohai "Updating $TOOL_FILE"
+							cp -fr "$UPDATES_DIR/install.sh" "$TOOL_FILE"
+							okdlg "Aktualizacja zakończona" "Narzędzie zostanie uruchomione ponownie"
+							ohai "Restarting tool"
+							exec "$TOOL_FILE"
+						fi
 					fi
 				fi
 			fi
diff --git a/src/lib.sh b/src/lib.sh
index b48b561..3fa7bb2 100644
--- a/src/lib.sh
+++ b/src/lib.sh
@@ -1147,7 +1147,7 @@ update_background_check() {
 }
 
 update_if_needed() {
-   
+
 	download_if_needed "$@"
 
 	local lastDownload=$(read_or_default "$UPDATES_DIR/downloaded" "???")
@@ -1164,105 +1164,112 @@ update_if_needed() {
 			fi
 		else
 
-			local changed=0
-			local redeploy=0
-
-			local instOnlineVer=$(extract_version "$(<"$UPDATES_DIR/install.sh")")
-			local depEnvOnlineVer=$(extract_version "$(<"$UPDATES_DIR/deployment.env")")
-			local nsEnvOnlineVer=$(extract_version "$(<"$UPDATES_DIR/nightscout.env")")
-			local compOnlineVer=$(extract_version "$(<"$UPDATES_DIR/docker-compose.yml")")
-
-			local instLocalVer=$(extract_version "$(<"$TOOL_FILE")")
-			local depEnvLocalVer=$(extract_version "$(<"$ENV_FILE_DEP")")
-			local nsEnvLocalVer=$(extract_version "$(<"$ENV_FILE_NS")")
-			local compLocalVer=$(extract_version "$(<"$DOCKER_COMPOSE_FILE")")
+			if [ $# -eq 0 ] && [ "$UPDATE_CHANNEL" == "master" ] && [[ "$lastDownload" < "$updateInstalled" ]]; then
+				msgnote "Downgrade not possible on master channel"
+				forceUpdateCheck=1
+				download_if_needed
+			else
 
-			local msgInst="$(printf "\U1F7E2") $instLocalVer"
-			local msgDep="$(printf "\U1F7E2") $depEnvLocalVer"
-			local msgNs="$(printf "\U1F7E2") $nsEnvLocalVer"
-			local msgComp="$(printf "\U1F7E2") $compLocalVer"
+				local changed=0
+				local redeploy=0
 
-			if ! [ "$instOnlineVer" == "$instLocalVer" ] || ! [ "$lastDownload" == "$updateInstalled" ]; then
-				changed=$((changed + 1))
-				msgInst="$(printf "\U1F534") $instLocalVer $(printf "\U27A1") $instOnlineVer"
-			fi
+				local instOnlineVer=$(extract_version "$(<"$UPDATES_DIR/install.sh")")
+				local depEnvOnlineVer=$(extract_version "$(<"$UPDATES_DIR/deployment.env")")
+				local nsEnvOnlineVer=$(extract_version "$(<"$UPDATES_DIR/nightscout.env")")
+				local compOnlineVer=$(extract_version "$(<"$UPDATES_DIR/docker-compose.yml")")
 
-			if ! [ "$depEnvLocalVer" == "$depEnvOnlineVer" ]; then
-				changed=$((changed + 1))
-				redeploy=$((redeploy + 1))
-				msgDep="$(printf "\U1F534") $depEnvLocalVer $(printf "\U27A1") $depEnvOnlineVer"
-			fi
+				local instLocalVer=$(extract_version "$(<"$TOOL_FILE")")
+				local depEnvLocalVer=$(extract_version "$(<"$ENV_FILE_DEP")")
+				local nsEnvLocalVer=$(extract_version "$(<"$ENV_FILE_NS")")
+				local compLocalVer=$(extract_version "$(<"$DOCKER_COMPOSE_FILE")")
 
-			if ! [ "$nsEnvLocalVer" == "$nsEnvOnlineVer" ]; then
-				changed=$((changed + 1))
-				redeploy=$((redeploy + 1))
-				msgNs="$(printf "\U1F534") $nsEnvLocalVer $(printf "\U27A1") $nsEnvOnlineVer"
-			fi
+				local msgInst="$(printf "\U1F7E2") $instLocalVer"
+				local msgDep="$(printf "\U1F7E2") $depEnvLocalVer"
+				local msgNs="$(printf "\U1F7E2") $nsEnvLocalVer"
+				local msgComp="$(printf "\U1F7E2") $compLocalVer"
 
-			if ! [ "$compLocalVer" == "$compOnlineVer" ]; then
-				changed=$((changed + 1))
-				redeploy=$((redeploy + 1))
-				msgComp="$(printf "\U1F534") $compLocalVer $(printf "\U27A1") $compOnlineVer"
-			fi
-
-			if [ "$changed" -eq 0 ]; then
-				if [ $# -eq 1 ]; then
-					msgok "Scripts and config files are up to date"
-					okdlg "Aktualizacja skryptów" "$1"
-				fi
-			else
-				local okTxt=""
-				if [ "$redeploy" -gt 0 ]; then
-					okTxt="${TL}${uni_warn} Aktualizacja zrestartuje i zaktualizuje kontenery ${uni_warn}"
+				if ! [ "$instOnlineVer" == "$instLocalVer" ] || ! [ "$lastDownload" == "$updateInstalled" ]; then
+					changed=$((changed + 1))
+					msgInst="$(printf "\U1F534") $instLocalVer $(printf "\U27A1") $instOnlineVer"
 				fi
 
-				local versionMsg="${TL}Build: ${updateInstalled}"
-				if [ ! "$lastDownload" == "$updateInstalled" ]; then
-					versionMsg="$(pad_multiline "${TL}Masz build: ${updateInstalled}${NL}  Dostępny: ${lastDownload}")"
+				if ! [ "$depEnvLocalVer" == "$depEnvOnlineVer" ]; then
+					changed=$((changed + 1))
+					redeploy=$((redeploy + 1))
+					msgDep="$(printf "\U1F534") $depEnvLocalVer $(printf "\U27A1") $depEnvOnlineVer"
 				fi
 
-				yesnodlg "Aktualizacja skryptów" "$uni_confirm_upd" "$uni_resign" \
-					"Zalecana jest aktualizacja plików:${versionMsg}" \
-					"$(
-						pad_multiline \
-							"${TL}${uni_bullet}Skrypt instalacyjny:      $msgInst" \
-							"${NL}${uni_bullet}Konfiguracja deploymentu: $msgDep" \
-							"${NL}${uni_bullet}Konfiguracja Nightscout:  $msgNs" \
-							"${NL}${uni_bullet}Kompozycja usług:         $msgComp${NL}"
-					)" \
-					"$okTxt"
-
-				if ! [ $? -eq 1 ]; then
+				if ! [ "$nsEnvLocalVer" == "$nsEnvOnlineVer" ]; then
+					changed=$((changed + 1))
+					redeploy=$((redeploy + 1))
+					msgNs="$(printf "\U1F534") $nsEnvLocalVer $(printf "\U27A1") $nsEnvOnlineVer"
+				fi
 
-					clear_last_time "update_needed"
+				if ! [ "$compLocalVer" == "$compOnlineVer" ]; then
+					changed=$((changed + 1))
+					redeploy=$((redeploy + 1))
+					msgComp="$(printf "\U1F534") $compLocalVer $(printf "\U27A1") $compOnlineVer"
+				fi
 
+				if [ "$changed" -eq 0 ]; then
+					if [ $# -eq 1 ]; then
+						msgok "Scripts and config files are up to date"
+						okdlg "Aktualizacja skryptów" "$1"
+					fi
+				else
+					local okTxt=""
 					if [ "$redeploy" -gt 0 ]; then
-						docker_compose_down
+						okTxt="${TL}${uni_warn} Aktualizacja zrestartuje i zaktualizuje kontenery ${uni_warn}"
 					fi
 
-					if ! [ "$compOnlineVer" == "$compLocalVer" ]; then
-						ohai "Updating $DOCKER_COMPOSE_FILE"
-						cp -fr "$UPDATES_DIR/docker-compose.yml" "$DOCKER_COMPOSE_FILE"
+					local versionMsg="${TL}Build: ${updateInstalled}"
+					if [ ! "$lastDownload" == "$updateInstalled" ]; then
+						versionMsg="$(pad_multiline "${TL}Masz build: ${updateInstalled}${NL}  Dostępny: ${lastDownload}")"
 					fi
 
-					if ! [ "$depEnvLocalVer" == "$depEnvOnlineVer" ]; then
-						ohai "Updating $ENV_FILE_DEP"
-						dotenv-tool -pr -o "$ENV_FILE_DEP" -i "$UPDATES_DIR/deployment.env" "$ENV_FILE_DEP"
-					fi
+					yesnodlg "Aktualizacja skryptów" "$uni_confirm_upd" "$uni_resign" \
+						"Zalecana jest aktualizacja plików:${versionMsg}" \
+						"$(
+							pad_multiline \
+								"${TL}${uni_bullet}Skrypt instalacyjny:      $msgInst" \
+								"${NL}${uni_bullet}Konfiguracja deploymentu: $msgDep" \
+								"${NL}${uni_bullet}Konfiguracja Nightscout:  $msgNs" \
+								"${NL}${uni_bullet}Kompozycja usług:         $msgComp${NL}"
+						)" \
+						"$okTxt"
 
-					if ! [ "$nsEnvLocalVer" == "$nsEnvOnlineVer" ]; then
-						ohai "Updating $ENV_FILE_NS"
-						dotenv-tool -pr -o "$ENV_FILE_NS" -i "$UPDATES_DIR/deployment.env" "$ENV_FILE_NS"
-					fi
+					if ! [ $? -eq 1 ]; then
+
+						clear_last_time "update_needed"
+
+						if [ "$redeploy" -gt 0 ]; then
+							docker_compose_down
+						fi
 
-					echo "$lastDownload" >"$UPDATES_DIR/updated"
+						if ! [ "$compOnlineVer" == "$compLocalVer" ]; then
+							ohai "Updating $DOCKER_COMPOSE_FILE"
+							cp -fr "$UPDATES_DIR/docker-compose.yml" "$DOCKER_COMPOSE_FILE"
+						fi
+
+						if ! [ "$depEnvLocalVer" == "$depEnvOnlineVer" ]; then
+							ohai "Updating $ENV_FILE_DEP"
+							dotenv-tool -pr -o "$ENV_FILE_DEP" -i "$UPDATES_DIR/deployment.env" "$ENV_FILE_DEP"
+						fi
 
-					if ! [ "$instOnlineVer" == "$instLocalVer" ] || ! [ "$lastDownload" == "$updateInstalled" ]; then
-						ohai "Updating $TOOL_FILE"
-						cp -fr "$UPDATES_DIR/install.sh" "$TOOL_FILE"
-						okdlg "Aktualizacja zakończona" "Narzędzie zostanie uruchomione ponownie"
-						ohai "Restarting tool"
-						exec "$TOOL_FILE"
+						if ! [ "$nsEnvLocalVer" == "$nsEnvOnlineVer" ]; then
+							ohai "Updating $ENV_FILE_NS"
+							dotenv-tool -pr -o "$ENV_FILE_NS" -i "$UPDATES_DIR/deployment.env" "$ENV_FILE_NS"
+						fi
+
+						echo "$lastDownload" >"$UPDATES_DIR/updated"
+
+						if ! [ "$instOnlineVer" == "$instLocalVer" ] || ! [ "$lastDownload" == "$updateInstalled" ]; then
+							ohai "Updating $TOOL_FILE"
+							cp -fr "$UPDATES_DIR/install.sh" "$TOOL_FILE"
+							okdlg "Aktualizacja zakończona" "Narzędzie zostanie uruchomione ponownie"
+							ohai "Restarting tool"
+							exec "$TOOL_FILE"
+						fi
 					fi
 				fi
 			fi
diff --git a/updated b/updated
index fa64a13..038a788 100644
--- a/updated
+++ b/updated
@@ -1 +1 @@
-2024-10-26T07:55:59.620Z
\ No newline at end of file
+2024-10-26T08:38:49.153Z
\ No newline at end of file