diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..3653b04
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+target*
+source*
diff --git a/main.go b/main.go
index 0b4cb0f..bee419f 100644
--- a/main.go
+++ b/main.go
@@ -13,6 +13,7 @@ func main() {
 	var source_dir = flag.String("s", "", "Path to image folder (/srv/fwuploads-tmp/)")
 	var target_dir = flag.String("t", "", "Path to image folder in public (/srv/fwuploads/troisdorf)")
 	var branch = flag.String("b", "", "Branch to work with")
+	var version = flag.String("v", "", "which version should be released")
 	var dryrun = flag.Bool("d", false, "Dryrun, just show changes on filesystem")
 
 	flag.Parse()
@@ -20,8 +21,8 @@ func main() {
 	tdir := *target_dir
 	br := *branch
 
-	var source_dir_branch string = sdir + br + "/"
-	var target_dir_branch string = tdir + br + "/"
+	var source_dir_branch string = sdir + br + "/images/"
+	var target_dir_branch string = tdir + br + "/images/"
 
 	if is_firmware_folder(source_dir_branch) {
 		//generate manifest file for branch
@@ -31,7 +32,7 @@ func main() {
 				log.Println("Error generating Manifest file: ", err)
 			}
 		}
-		release_branch(*branch, source_dir_branch, target_dir_branch, *dryrun)
+		release_branch(*branch, source_dir_branch, target_dir_branch, *dryrun, *version)
 	}
 }
 
diff --git a/release.go b/release.go
index 3e1704b..0e84576 100644
--- a/release.go
+++ b/release.go
@@ -1,23 +1,36 @@
 package main
 
 import (
+	"fmt"
 	"log"
 	"os"
+	"path/filepath"
+	"strings"
 )
 
-func release_branch(branch string, source_dir string, target_dir string, dryrun bool) {
-	checkOldFolder, _ := os.ReadDir(source_dir)
-	checkNewFolder, _ := os.ReadDir(target_dir)
+func release_branch(b string, sDir string, tDir string, dryrun bool, v string) {
+	check_sDir, _ := os.ReadDir(sDir)
+	check_tDir, _ := os.ReadDir(tDir)
 	var newImages bool = false
-	if len(checkOldFolder) > 0 {
+	if len(check_sDir) > 0 {
 		newImages = true
 	}
+	sVersion := GetGluonVersion(sDir)
+	tVersion := GetGluonVersion(tDir)
+	//check wanted version in target
+	if tVersion != v {
+		log.Println("published version is outdated, try to update from source folder")
+		if sVersion != v {
+			log.Println("wanted Version is not availible in source folder")
+			os.Exit(1)
+		}
+	}
 
 	if newImages {
 		// delete old firmware files in public folder
-		for _, file := range checkNewFolder {
+		for _, file := range check_tDir {
 			if !(dryrun) {
-				err := os.RemoveAll(target_dir + file.Name())
+				err := os.RemoveAll(tDir + file.Name())
 				if err != nil {
 					log.Println("error deleting file: ", err)
 				} else {
@@ -29,9 +42,9 @@ func release_branch(branch string, source_dir string, target_dir string, dryrun
 		}
 
 		//move new files to folder
-		for _, file := range checkOldFolder {
+		for _, file := range check_sDir {
 			if !(dryrun) {
-				os.Rename(source_dir+file.Name(), target_dir+file.Name())
+				os.Rename(sDir+file.Name(), tDir+file.Name())
 				log.Println("moved file: ", file.Name())
 			} else {
 				log.Println("DRYRUN: move folder: ", file.Name())
@@ -39,3 +52,27 @@ func release_branch(branch string, source_dir string, target_dir string, dryrun
 		}
 	}
 }
+
+func GetGluonVersion(path string) string {
+	image_folder := path + "sysupgrade/"
+	files, err := filepath.Glob(filepath.Join(image_folder, "gluon-tdf-*"))
+	if err != nil {
+		fmt.Println("Error reading directory: ", err)
+		os.Exit(1)
+	}
+
+	if len(files) > 0 {
+		fileName := filepath.Base(files[0])
+		parts := strings.Split(fileName, "-")
+		if len(parts) >= 4 {
+			version := parts[2]
+			return version
+		}
+	}
+
+	return ""
+}
+
+func check_Release() {
+
+}