diff --git a/configuration.default.ini b/configuration.default.ini
index 14867d6..5e0eec3 100644
--- a/configuration.default.ini
+++ b/configuration.default.ini
@@ -34,6 +34,9 @@ volume = 0.1
 # playback mode should be one of "one-shot", "loop", "random"
 playback_mode = one-shot
 
+# target version, stable or testing (testing need to bot installed with git)
+target_version = stable
+
 # Users allowed to kill the bot, or ban URLs.
 admin = User1;User2;
 # Folder that stores your local songs.
diff --git a/configuration.example.ini b/configuration.example.ini
index b337313..608ce2b 100644
--- a/configuration.example.ini
+++ b/configuration.example.ini
@@ -34,6 +34,10 @@ port = 64738
 # This option will be overridden by value in the database.
 #playback_mode = one-shot
 
+# target version, stable or testing (testing need to bot installed with git)
+# stable will use simple bash with curl command to get releases, testing will follow github master branch with git commands
+#target_version = stable
+
 # 'admin': Users allowed to kill the bot, or ban URLs. Separated by ';'
 #admin = User1;User2;
 
diff --git a/mumbleBot.py b/mumbleBot.py
index c7f2c85..c5d7330 100644
--- a/mumbleBot.py
+++ b/mumbleBot.py
@@ -20,6 +20,7 @@ import youtube_dl
 import logging
 import logging.handlers
 import traceback
+from packaging import version
 
 import util
 import command
@@ -33,6 +34,7 @@ import media.system
 from librb import radiobrowser
 from media.playlist import PlayList
 
+
 """
 FORMAT OF A MUSIC INTO THE PLAYLIST
 type : url
@@ -65,7 +67,7 @@ type : file
 
 
 class MumbleBot:
-    version = 5
+    version = 5.1
 
     def __init__(self, args):
         self.log = logging.getLogger("bot")
@@ -196,7 +198,7 @@ class MumbleBot:
     def check_update(self):
         self.log.debug("update: checking for updates...")
         new_version = util.new_release_version()
-        if new_version > self.version:
+        if version.parse(new_version) > version.parse(self.version):
             self.log.info("update: new version %d found, current installed version %d." % (new_version, self.version))
             self.send_msg(constants.strings('new_version_found'))
         else:
diff --git a/requirements.txt b/requirements.txt
index 878d03e..1ad1752 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,3 +6,4 @@ python-magic
 Pillow
 mutagen
 requests
+packaging
diff --git a/update.sh b/update.sh
index a06e1b3..4f5c375 100644
--- a/update.sh
+++ b/update.sh
@@ -1,5 +1,20 @@
-curl -Lo /tmp/botamusique.tar.gz https://azlux.fr/botamusique/sources.tar.gz
-tar -xzf /tmp/botamusique.tar.gz -C /tmp/
-cp -r /tmp/botamusique/* .
-rm -r /tmp/botamusique
-rm -r /tmp/botamusique.tar.gz
+#!/usr/bin/env bash
+
+case "$1" in
+    stable)
+        curl -Lo /tmp/botamusique.tar.gz https://azlux.fr/botamusique/sources.tar.gz
+        tar -xzf /tmp/botamusique.tar.gz -C /tmp/
+        cp -r /tmp/botamusique/* .
+        rm -r /tmp/botamusique
+        rm -r /tmp/botamusique.tar.gz
+        ;;
+    testing)
+        git fetch
+        git pull --all
+        git submodule update
+        ;;
+
+    *)
+        ;;
+esac
+exit 0
diff --git a/util.py b/util.py
index 7841dd8..be4b79c 100644
--- a/util.py
+++ b/util.py
@@ -21,9 +21,11 @@ from sys import platform
 import base64
 import media
 import media.radio
+from packaging import version
 
 log = logging.getLogger("bot")
 
+
 def solve_filepath(path):
     if not path:
         return ''
@@ -34,7 +36,8 @@ def solve_filepath(path):
         mydir = os.path.dirname(os.path.realpath(__file__))
         return mydir + '/' + path
 
-def get_recursive_filelist_sorted(path):
+
+def get_recursive_file_list_sorted(path):
     filelist = []
     for root, dirs, files in os.walk(path):
         relroot = root.replace(path, '', 1)
@@ -57,6 +60,7 @@ def get_recursive_filelist_sorted(path):
     filelist.sort()
     return filelist
 
+
 def get_music_path(music):
     uri = ''
     if music["type"] == "url":
@@ -95,7 +99,7 @@ def get_music_tag_info(music):
                     tags = mutagen.File(uri)
                     if 'TIT2' in tags:
                         music['title'] = tags['TIT2'].text[0]
-                    if 'TPE1' in tags: # artist
+                    if 'TPE1' in tags:  # artist
                         music['artist'] = tags['TPE1'].text[0]
 
                     if im is None:
@@ -110,7 +114,7 @@ def get_music_tag_info(music):
                     tags = mutagen.File(uri)
                     if '©nam' in tags:
                         music['title'] = tags['©nam'][0]
-                    if '©ART' in tags: # artist
+                    if '©ART' in tags:  # artist
                         music['artist'] = tags['©ART'][0]
 
                         if im is None:
@@ -135,6 +139,7 @@ def get_music_tag_info(music):
 
     return music
 
+
 def format_song_string(music):
     display = ''
     source = music["type"]
@@ -169,6 +174,7 @@ def format_song_string(music):
 
     return display
 
+
 def format_debug_song_string(music):
     display = ''
     source = music["type"]
@@ -203,6 +209,7 @@ def format_debug_song_string(music):
 
     return display
 
+
 def format_current_playing():
     music = var.playlist.current_item()
     display = format_song_string(music)
@@ -229,7 +236,7 @@ def zipdir(zippath, zipname_prefix=None):
     if zipname_prefix and '../' not in zipname_prefix:
         zipname += zipname_prefix.strip().replace('/', '_') + '_'
 
-    files = get_recursive_filelist_sorted(zippath)
+    files = get_recursive_file_list_sorted(zippath)
     hash = hashlib.sha1((str(files).encode())).hexdigest()
     zipname += hash + '.zip'
 
@@ -258,22 +265,25 @@ def get_user_ban():
         res += "<br/>" + i[0]
     return res
 
+
 def new_release_version():
-    v = int(urllib.request.urlopen(urllib.request.Request("https://azlux.fr/botamusique/version")).read())
-    return v
+    v = urllib.request.urlopen(urllib.request.Request("https://packages.azlux.fr/botamusique/version")).read()
+    return v.rstrip().decode()
+
 
 def update(version):
     global log
 
-    v = new_release_version()
-    if v > version:
+    new_version = new_release_version()
+    if version.parse(new_version) > version.parse(version):
         log.info('update: new version, start updating...')
-        tp = sp.check_output(['/usr/bin/env', 'bash', 'update.sh']).decode()
+        target = var.config.get('bot','target_version')
+        tp = sp.check_output(['/usr/bin/env', 'bash', 'update.sh', target]).decode()
         log.debug(tp)
         log.info('update: update pip librairies dependancies')
         tp = sp.check_output([var.config.get('bot', 'pip3_path'), 'install', '--upgrade', '-r', 'requirements.txt']).decode()
         msg = "New version installed, please restart the bot."
-        
+
     else:
         log.info('update: starting update youtube-dl via pip3')
         tp = sp.check_output([var.config.get('bot', 'pip3_path'), 'install', '--upgrade', 'youtube-dl']).decode()
@@ -286,6 +296,7 @@ def update(version):
     msg += "<br/> Youtube-dl reloaded"
     return msg
 
+
 def user_ban(user):
     var.db.set("user_ban", user, None)
     res = "User " + user + " banned"
@@ -316,6 +327,7 @@ def url_unban(url):
     res = "Done"
     return res
 
+
 def pipe_no_wait(pipefd):
     ''' Used to fetch the STDERR of ffmpeg. pipefd is the file descriptor returned from os.pipe()'''
     if platform == "linux" or platform == "linux2" or platform == "darwin":
@@ -355,7 +367,6 @@ def pipe_no_wait(pipefd):
         return True
 
 
-
 class Dir(object):
     def __init__(self, path):
         self.name = os.path.basename(path.strip('/'))
@@ -432,7 +443,7 @@ class Dir(object):
 
             for key, val in self.subdirs.items():
                 files.extend(map(lambda file: key + '/' + file, val.get_files_recursively()))
-        
+
         return files
 
     def render_text(self, ident=0):
@@ -453,4 +464,4 @@ def get_url_from_input(string):
     if res:
         return res.group(1)
     else:
-        return False
\ No newline at end of file
+        return False