diff --git a/app/scodoc/sco_up_to_date.py b/app/scodoc/sco_up_to_date.py
index cab38a63..cd473f97 100644
--- a/app/scodoc/sco_up_to_date.py
+++ b/app/scodoc/sco_up_to_date.py
@@ -28,104 +28,19 @@
 
 """ Verification version logiciel vs version "stable" sur serveur
     N'effectue pas la mise à jour automatiquement, mais permet un affichage d'avertissement.
+
+    Désactivé temporairement pour ScoDoc 9.
 """
-import datetime
 
-import app.scodoc.sco_utils as scu
-from app import log
-
-# Appel renvoyant la subversion "stable"
-# La notion de "stable" est juste là pour éviter d'afficher trop frequemment
-# des avertissements de mise à jour: on veut pouvoir inciter à mettre à jour lors de
-# correctifs majeurs.
-
-GET_VER_URL = "http://scodoc.iutv.univ-paris13.fr/scodoc-installmgr/last_stable_version"
-
-
-def get_last_stable_version():
-    """request last stable version number from server
-    (returns string as given by server, empty if failure)
-    (do not wait server answer more than 3 seconds)
-    """
-    global _LAST_UP_TO_DATE_REQUEST
-    ans = scu.query_portal(
-        GET_VER_URL, msg="ScoDoc version server", timeout=3
-    )  # sco_utils
-    if ans:
-        ans = ans.strip()
-    _LAST_UP_TO_DATE_REQUEST = datetime.datetime.now()
-    log(
-        'get_last_stable_version: updated at %s, answer="%s"'
-        % (_LAST_UP_TO_DATE_REQUEST, ans)
-    )
-    return ans
-
-
-_LAST_UP_TO_DATE_REQUEST = None  # datetime of last request to server
-_UP_TO_DATE = True  # cached result (limit requests to 1 per day)
-_UP_TO_DATE_MSG = ""
+from flask import current_app
 
 
 def is_up_to_date():
     """True if up_to_date
     Returns status, message
     """
-    log("Warning: is_up_to_date not implemented for ScoDoc8")
+    current_app.logger.debug("Warning: is_up_to_date not implemented for ScoDoc9")
     return True, "unimplemented"
-    # global _LAST_UP_TO_DATE_REQUEST, _UP_TO_DATE, _UP_TO_DATE_MSG
-    # if _LAST_UP_TO_DATE_REQUEST and (
-    #     datetime.datetime.now() - _LAST_UP_TO_DATE_REQUEST
-    # ) < datetime.timedelta(1):
-    #     # requete deja effectuee aujourd'hui:
-    #     return _UP_TO_DATE, _UP_TO_DATE_MSG
-
-    # last_stable_ver = get_last_stable_version()
-    # cur_ver = scu.get_svn_version(scu.SCO_SRC_DIR)  # in sco_utils
-    # cur_ver2 = cur_ver
-    # cur_ver_num = -1
-    # # Convert versions to integers:
-    # try:
-    #     # cur_ver can be "1234" or "1234M' or '1234:1245M'...
-    #     fs = cur_ver.split(":", 1)
-    #     if len(fs) > 1:
-    #         cur_ver2 = fs[-1]
-    #     m = re.match(r"([0-9]*)", cur_ver2)
-    #     if not m:
-    #         raise ValueError(
-    #             "invalid svn version"
-    #         )  # should never occur, regexp always (maybe empty) match
-    #     cur_ver_num = int(m.group(1))
-    # except:
-    #     log('Warning: no numeric subversion ! (cur_ver="%s")' % cur_ver)
-    #     return _UP_TO_DATE, _UP_TO_DATE_MSG  # silently ignore misconfiguration ?
-    # try:
-    #     last_stable_ver_num = int(last_stable_ver)
-    # except:
-    #     log("Warning: last_stable_version returned by server is invalid !")
-    #     return (
-    #         _UP_TO_DATE,
-    #         _UP_TO_DATE_MSG,
-    #     )  # should ignore this error (maybe server is unreachable)
-    # #
-    # if cur_ver_num < last_stable_ver_num:
-    #     _UP_TO_DATE = False
-    #     _UP_TO_DATE_MSG = "Version %s disponible (version %s installée)" % (
-    #         last_stable_ver,
-    #         cur_ver_num,
-    #     )
-    #     log(
-    #         "Warning: ScoDoc installation is not up-to-date, should upgrade\n%s"
-    #         % _UP_TO_DATE_MSG
-    #     )
-    # else:
-    #     _UP_TO_DATE = True
-    #     _UP_TO_DATE_MSG = ""
-    #     log(
-    #         "ScoDoc is up-to-date (cur_ver: %s, using %s=%s)"
-    #         % (cur_ver, cur_ver2, cur_ver_num)
-    #     )
-
-    # return _UP_TO_DATE, _UP_TO_DATE_MSG
 
 
 def html_up_to_date_box():
diff --git a/sco_version.py b/sco_version.py
index 7669307f..2e77dbe6 100644
--- a/sco_version.py
+++ b/sco_version.py
@@ -1,7 +1,7 @@
 # -*- mode: python -*-
 # -*- coding: utf-8 -*-
 
-SCOVERSION = "9.0.10"
+SCOVERSION = "9.0.11"
 
 SCONAME = "ScoDoc"