diff --git a/language/en_UK/admin.lang.php b/language/en_UK/admin.lang.php
index 5cd1bf07d..5fff88c96 100644
--- a/language/en_UK/admin.lang.php
+++ b/language/en_UK/admin.lang.php
@@ -1400,4 +1400,7 @@ $lang['Resend password link'] = 'Resend password link';
 $lang['Username successfully modified'] = 'Username successfully modified';
 $lang['Changing the main user'] = 'Changing the main user';
 $lang['Yes, let\'s proceed'] = 'Yes, let\'s proceed';
+$lang['What\'s new in version %s'] = 'What\'s new in version %s?';
+$lang['Read the release note'] = 'Read the release note';
+$lang['Ok, got it!'] = 'Ok, got it!';
 // Leave this line empty
\ No newline at end of file
diff --git a/language/en_UK/whats_new_15.lang.php b/language/en_UK/whats_new_15.lang.php
new file mode 100644
index 000000000..f9422c0ae
--- /dev/null
+++ b/language/en_UK/whats_new_15.lang.php
@@ -0,0 +1,12 @@
+<?php
+// +-----------------------------------------------------------------------+
+// | This file is part of Piwigo.                                          |
+// |                                                                       |
+// | For copyright and license information, please view the COPYING.txt    |
+// | file that was distributed with this source code.                      |
+// +-----------------------------------------------------------------------+
+
+$lang['A new interface for user management'] = 'A new interface for user management';
+$lang['Brand new features : Activities logs and PDF reader'] = 'Brand new features : Activities logs and PDF reader';
+$lang['Enhanced interface for batch manager and album selector'] = 'Enhanced interface for batch manager and album selector';
+$lang['Even more filters for the gallery search engine'] = 'Even more filters for the gallery search engine';
diff --git a/language/fr_FR/admin.lang.php b/language/fr_FR/admin.lang.php
index 728bc8e26..7b8853d70 100644
--- a/language/fr_FR/admin.lang.php
+++ b/language/fr_FR/admin.lang.php
@@ -1402,4 +1402,7 @@ $lang['Resend password link'] = 'Renvoyer le lien du mot de passe';
 $lang['Username successfully modified'] = 'Nom d\'utilisateur modifié avec succès';
 $lang['Changing the main user'] = 'Changer l\'utilisateur principal';
 $lang['Yes, let\'s proceed'] = 'Oui, continuons';
+$lang['What\'s new in version %s'] = 'Quoi de neuf dans Piwigo %s ?';
+$lang['Read the release note'] = 'Lire la note de version';
+$lang['Ok, got it!'] = 'Ok, j\'ai compris!';
 // Leave this line empty
diff --git a/language/fr_FR/whats_new_15.lang.php b/language/fr_FR/whats_new_15.lang.php
new file mode 100644
index 000000000..b41e53a30
--- /dev/null
+++ b/language/fr_FR/whats_new_15.lang.php
@@ -0,0 +1,12 @@
+<?php
+// +-----------------------------------------------------------------------+
+// | This file is part of Piwigo.                                          |
+// |                                                                       |
+// | For copyright and license information, please view the COPYING.txt    |
+// | file that was distributed with this source code.                      |
+// +-----------------------------------------------------------------------+
+
+$lang['A new interface for user management'] = 'Une nouvelle interface pour la gestion des utilisateurs';
+$lang['Brand new features : Activities logs and PDF reader'] = 'Nouvelles fonctionnalités : Activités systèmes et lecteur PDF';
+$lang['Enhanced interface for batch manager and album selector'] = 'Design amélioré pour la gestion par lot et la sélection d\'album';
+$lang['Even more filters for the gallery search engine'] = 'De nouveaux filtres dans le moteur de recherche';