diff --git a/ChangeLog b/ChangeLog
index ae767c91649..76709bd8f85 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -4,9 +4,20 @@ English Dolibarr ChangeLog
 
 ***** ChangeLog for 17.0.0 compared to 16.0.0 *****
 
+For users:
+---------------
+
+...
+
+
 For developers or integrators:
 ------------------------------
 
+...
+
+
+WARNING:
+
 Following changes may create regressions for some external modules, but were necessary to make Dolibarr better:
 * The signature of method getNomUrl() of class ProductFournisseur has been modified to match the signature of method Product
 
@@ -192,6 +203,8 @@ NEW: Add hooks select product list and select thirdparty list function
 NEW: Add hook to getSellPrice function
 
 
+WARNING:
+
 Following changes may create regressions for some external modules, but were necessary to make Dolibarr better:
 * There is a new specific permission to be allowed to enter timesheets. If you use timesheet, don't forget to give the new permission (disable and 
   enable the module project if it is not visible).
@@ -489,6 +502,8 @@ NEW: we need to be able to put more filters on deleteByParentField() function
 NEW: make it easier to set the `keyword`, `keywords` and `description` attributes of an ecm file object
 NEW: Experimental feature to manage user sessions in database
 
+
+WARNING:
  
 Following changes may create regressions for some external modules, but were necessary to make Dolibarr better:
 * ALL EXTERNAL MODULES THAT WERE NOT CORRECTLY DEVELOPPED WILL NOT WORK ON V15 (All modules that forgot to manage the security token field