diff --git a/doc/en/release_notes/centreon-2.8/centreon-2.8.15.rst b/doc/en/release_notes/centreon-2.8/centreon-2.8.15.rst
index 86a9ebd0d4fd941a4d06718b8f19c41e88b04e5f..9ed3d68a3034d6eee9df7fcc5268f1df3d45c140 100644
--- a/doc/en/release_notes/centreon-2.8/centreon-2.8.15.rst
+++ b/doc/en/release_notes/centreon-2.8/centreon-2.8.15.rst
@@ -2,8 +2,32 @@
 Centreon Web 2.8.15
 ###################
 
+Important notice
+================
+
+This version include a fix for the calculation of downtimes with daylight saving 
+time (DST). The downtime end will be calculate with the new hour.
+
+For example, if you put a downtime from 1 AM to 5 AM, the duration of the 
+downtime will be 5 hours if during the DST you get 1 hour more (3 AM come back 
+to 2 AM).
+
 Enhancements
 ============
 
+* [Documentation] Improve api documentation (url) #5792
+* [Downtimes] Manage downtimes with dst (recurrent and realtime) #5780
+
 Bugfix
 ======
+
+* [Install] Fix foreign key upgrade of traps_group table PR #5752
+* [CLAPI] Fix duplicate ldap serverPR #5769
+* [CLAPI] Fix duplicate htpl in stpl #5774
+* [CLAPI] Fix duplicate on stpl #5775
+* [Chart] Add unit on y axis
+* [Chart] Fix extra legend on period change
+* [Chart] Fix export with empty metric
+* [Configuration] Add obsess_over_hosts parameter in main centengine configuration PR #5746
+* [Monitoring] Ranking of ascending / descending guests NOK #5695 PR #5744
+* [Monitoring] fix variable name in centreontrapd.pm
diff --git a/doc/fr/release_notes/centreon-2.8/centreon-2.8.15.rst b/doc/fr/release_notes/centreon-2.8/centreon-2.8.15.rst
index 86a9ebd0d4fd941a4d06718b8f19c41e88b04e5f..9ed3d68a3034d6eee9df7fcc5268f1df3d45c140 100644
--- a/doc/fr/release_notes/centreon-2.8/centreon-2.8.15.rst
+++ b/doc/fr/release_notes/centreon-2.8/centreon-2.8.15.rst
@@ -2,8 +2,32 @@
 Centreon Web 2.8.15
 ###################
 
+Important notice
+================
+
+This version include a fix for the calculation of downtimes with daylight saving 
+time (DST). The downtime end will be calculate with the new hour.
+
+For example, if you put a downtime from 1 AM to 5 AM, the duration of the 
+downtime will be 5 hours if during the DST you get 1 hour more (3 AM come back 
+to 2 AM).
+
 Enhancements
 ============
 
+* [Documentation] Improve api documentation (url) #5792
+* [Downtimes] Manage downtimes with dst (recurrent and realtime) #5780
+
 Bugfix
 ======
+
+* [Install] Fix foreign key upgrade of traps_group table PR #5752
+* [CLAPI] Fix duplicate ldap serverPR #5769
+* [CLAPI] Fix duplicate htpl in stpl #5774
+* [CLAPI] Fix duplicate on stpl #5775
+* [Chart] Add unit on y axis
+* [Chart] Fix extra legend on period change
+* [Chart] Fix export with empty metric
+* [Configuration] Add obsess_over_hosts parameter in main centengine configuration PR #5746
+* [Monitoring] Ranking of ascending / descending guests NOK #5695 PR #5744
+* [Monitoring] fix variable name in centreontrapd.pm