diff --git a/language/fi_FI/admin.lang.php b/language/fi_FI/admin.lang.php
index 5b70ca321..b66129dbd 100644
--- a/language/fi_FI/admin.lang.php
+++ b/language/fi_FI/admin.lang.php
@@ -1263,4 +1263,28 @@ $lang['Set as main user'] = 'Aseta pääkäyttäjäksi';
 $lang['%s is the new main user'] = '%s on uusi pääkäyttäjä';
 $lang['Changing the main user'] = 'Vaihdetaan pääkäyttäjä';
 $lang['Copied link'] = 'Kopioitu linkki';
-$lang['Copy password'] = 'Kopioi salasana';
\ No newline at end of file
+$lang['Copy password'] = 'Kopioi salasana';
+$lang['This photo no longer exists'] = 'Tätä kuvaa ei ole enää olemassa';
+$lang['This plugin has no recent update'] = 'Tähän laajennukseen ei ole viimeaikaista päivitystä';
+$lang['This plugin is incompatible with your version'] = 'Tämä laajennus ei ole yhteensopiva sinun version kanssa';
+$lang['Thumbnail'] = 'Pikkukuva';
+$lang['Time'] = 'Aika';
+$lang['An activation link valid for 1 hour has been sent to "%s". If the user doesn\'t receive the link, you can generate and copy a new one by editing the user and managing her password.'] = '1 tunnin voimassa oleva aktivointilinkki on lähetetty osoitteeseen "%s". Jos käyttäjä ei saa linkkiä, voit luoda ja kopioida uuden muokkaamalla käyttäjää ja hallitsemalla hänen salasanaansa.';
+$lang['An activation link valid for 1 hour was created but could not be sent. You can now copy the link below and send it to the user.'] = '1 tunnin voimassa oleva aktivointilinkki luotiin, mutta sitä ei voitu lähettää. Voit kopioida alla olevan linkin ja lähettää sen käyttäjälle.';
+$lang['Cannot send an email to this user because he doesn\'t have an email address'] = 'Sähköpostin lähettäminen tälle käyttäjälle ei onnistu, koska hänellä ei ole sähköpostiosoitetta.';
+$lang['Ok, got it!'] = 'Ok, sain sen!';
+$lang['Read the release note'] = 'Lue julkaisutiedote';
+$lang['The Piwigo publish Plug-in allows you to export and synchronize photos from Lightroom directly to your Piwigo photo gallery.'] = 'Piwigon julkaisulaajennuksen avulla voit viedä ja synkronoida valokuvia Lightroomista suoraan Piwigo-kuvagalleriaasi.';
+$lang['The file or directory cannot be accessed (either it does not exist or the access is denied)'] = 'Tiedostoa tai hakemistoa ei voi käyttää (joko sitä ei ole olemassa tai sinulla ei ole oikeuksia siihen)';
+$lang['The name of directories and files must be composed of letters, numbers, "-", "_" or "."'] = 'Hakemistojen ja tiedostojen nimet saavat sisältää vain kirjaimia, numeroita, "-", "_" tai "."';
+$lang['The original picture will be detected with the filename (without extension).'] = 'Alkuperäinen kuva tunnistetaan tiedostonimellä (ilman päätessä).';
+$lang['The uploaded file exceeds the upload_max_filesize directive in php.ini: %sB'] = 'Ladattu kuva ylittää php.ini tiedoston upload_max_filesize asetuksen: %sB';
+$lang['The version of %s [%s] installed is not compatible with the version required ']['%s'] = 'Asennettu versio %s [%s] ei ole yhteensopiva vaaditun version [%s] kanssa';
+$lang['The webmaster has subscribed you to receiving notifications by mail.'] = 'Webmaster on tilannut sinulle sähköposti-ilmoitukset';
+$lang['The webmaster has unsubscribed you from receiving notifications by mail.'] = 'Webmaster on poistanut sinulta tilauksen uusista sähköposti-ilmoituksista.';
+$lang['This albums is already in related categories list'] = 'Tämä albumi on jo aiheeseen liittyvien albumien luettelossa';
+$lang['This is a major update, with <a href="%s">new exciting features</a>.'] = 'Tämä on iso päivitys, joka sisältää <a href="%s">uusia jännittäviä ominaisuuksia</a>.';
+$lang['This is a minor update, with only bug corrections.'] = 'Tämä on pieni päivitys vain bugikorjauksilla.';
+$lang['This is already the default theme'] = 'Tämä on jo oletusteema';
+$lang['This name is already used by another group.'] = 'Tämä nimi on jo toisen ryhmän käytössä.';
+$lang['This photo is an orphan'] = 'Tämä kuva on orpo';
\ No newline at end of file
diff --git a/language/hy_AM/whats_new_15.lang.php b/language/hy_AM/whats_new_15.lang.php
new file mode 100644
index 000000000..68f05f49d
--- /dev/null
+++ b/language/hy_AM/whats_new_15.lang.php
@@ -0,0 +1,11 @@
+<?php
+// +-----------------------------------------------------------------------+
+// | This file is part of Piwigo.                                          |
+// |                                                                       |
+// | For copyright and license information, please view the COPYING.txt    |
+// | file that was distributed with this source code.                      |
+// +-----------------------------------------------------------------------+
+$lang['A new interface for user management'] = 'Օգտագործողների կառավարման նոր ինտերֆեյս';
+$lang['Brand new features : Activities logs and PDF reader'] = 'Բոլորովին նոր առանձնահատկություններ. Գործողությունների տեղեկամատյաններ և PDF ընթերցող';
+$lang['Enhanced interface for batch manager and album selector'] = 'Բարելավված ինտերֆեյս խմբաքանակի կառավարչի և ալբոմների ընտրության համար';
+$lang['Even more filters for the gallery search engine'] = 'Ավելի շատ զտիչներ պատկերասրահի որոնիչի համար';
\ No newline at end of file
diff --git a/language/it_IT/admin.lang.php b/language/it_IT/admin.lang.php
index cc88563c2..46342b9df 100644
--- a/language/it_IT/admin.lang.php
+++ b/language/it_IT/admin.lang.php
@@ -1373,4 +1373,30 @@ $lang['An error has occured'] = 'È accaduto un errore';
 $lang['Auto-update'] = 'Aggiornamento automatico';
 $lang['Changes saved'] = 'Cambiamenti salvati';
 $lang['Create a root album'] = 'Crea album radice';
-$lang['Activate create mode to create and select an album'] = 'Attiva modalità creazione per creare e selezionare un album';
\ No newline at end of file
+$lang['Activate create mode to create and select an album'] = 'Attiva modalità creazione per creare e selezionare un album';
+$lang['Copy the password link'] = 'Copia il collegamento della password';
+$lang['Main user'] = 'Utente principale';
+$lang['Ok, got it!'] = 'Ok, ho capito!';
+$lang['Password copied'] = 'Password copiata';
+$lang['Please complete all fields'] = 'Prego completare tutti i campi';
+$lang['Read the release note'] = 'Leggi le note di rilascio';
+$lang['Resend password link'] = 'Invia nuovamente il link della password';
+$lang['Set as main user'] = 'Imposta come utente principale';
+$lang['The passwords do not match'] = 'Le password non coincidono';
+$lang['This user must first be defined as the webmaster before it can be upgraded to the main user'] = 'Questo utente deve prima essere impostato come webmaster prima che possa essere promosso ad utente principale';
+$lang['To be sure, please rewrite the word “%s” below'] = 'Per essere sicuro, prego riscrivi la parola sottostante "%s" ';
+$lang['Username successfully modified'] = 'Nome utente modificato con successo';
+$lang['What\'s new in version %s'] = 'Cosa c\'è di nuovo nella versione %s?';
+$lang['Yes, let\'s proceed'] = 'Sì, procediamo!';
+$lang['You are about to set %s as main user instead of %s, do you wish to continue ?'] = 'Stai per impostare %s come utente principale al posto di %s, vuoi procedere?';
+$lang['You are not authorised to change the main user, please ask your webmaster'] = 'Non sei autorizzato a cambiare l\'utente principale, per favore chiedi al tuo webmaster.';
+$lang['You can now change the main user from %s to %s.'] = 'Ora puoi cambiare l\'utente principale da %s a %s.';
+$lang['You cannot copy the password if the connection to this site is not secure.'] = 'Non puoi copiare la password se la connessione al sito non è sicura.';
+$lang['%s is the new main user'] = '%s è il nuovo utente principale';
+$lang['Copied link'] = 'Link copiato';
+$lang['Copy password'] = 'Copia password';
+$lang['Copy the link below and send it to the user so the password can be set.'] = 'Copia il collegamento sottostante ed invialo all\'utente in modo che possa impostare la password.';
+$lang['An activation link valid for 1 hour has been sent to "%s". If the user doesn\'t receive the link, you can generate and copy a new one by editing the user and managing her password.'] = 'È stato inviato un link per l\'attivazione valido un\'ora a "%s". Qualora l\'utente non lo ricevesse, puoi ne puoi generare e copiare uno nuovo modificando l\'utente e gestendone la password.';
+$lang['An activation link valid for 1 hour was created but could not be sent. You can now copy the link below and send it to the user.'] = 'Un link d\'attivazione valido un\'ora è stato generato, tuttavia non è stato possibile inviarlo. Ora puoi copiare il collegamento sottostante ed inviarlo all\'utente.';
+$lang['Cannot send an email to this user because he doesn\'t have an email address'] = 'Non posso inviare un\'email a questo utente in quanto non ';
+$lang['Changing the main user'] = 'Cambiare l\'utente principale';
\ No newline at end of file
diff --git a/language/tr_TR/admin.lang.php b/language/tr_TR/admin.lang.php
index 4bf5157f0..4c925683c 100644
--- a/language/tr_TR/admin.lang.php
+++ b/language/tr_TR/admin.lang.php
@@ -1391,4 +1391,7 @@ $lang['This user must first be defined as the webmaster before it can be upgrade
 $lang['To be sure, please rewrite the word “%s” below'] = 'Emin olmak için lütfen aşağıdaki "%s" kelimesini yeniden yazın';
 $lang['Username successfully modified'] = 'Kullanıcı adı başarıyla değiştirildi';
 $lang['Yes, let\'s proceed'] = 'Evet, devam edelim';
-$lang['You are about to set %s as main user instead of %s, do you wish to continue ?'] = '%s yerine %s\'yi ana kullanıcı olarak ayarlamak üzeresiniz, devam etmek istiyor musunuz?';
\ No newline at end of file
+$lang['You are about to set %s as main user instead of %s, do you wish to continue ?'] = '%s yerine %s\'yi ana kullanıcı olarak ayarlamak üzeresiniz, devam etmek istiyor musunuz?';
+$lang['Read the release note'] = 'Sürüm notunu okuyun';
+$lang['What\'s new in version %s'] = 'Versiyon %s\'de neler yeni?';
+$lang['Ok, got it!'] = 'Tamamdır, anlaşıldı!';
\ No newline at end of file
diff --git a/language/zh_CN/admin.lang.php b/language/zh_CN/admin.lang.php
index a37b450fb..32de5f016 100644
--- a/language/zh_CN/admin.lang.php
+++ b/language/zh_CN/admin.lang.php
@@ -1296,7 +1296,7 @@ $lang['Portraits'] = '图';
 $lang['Posted %s'] = '已发送 %s';
 $lang['Compact View'] = '紧凑视图';
 $lang['Last visit'] = '上一次访问';
-$lang['Latest Piwigo news'] = 'PIWIGO最新消息';
+$lang['Latest Piwigo news'] = 'Piwigo最新消息';
 $lang['Line View'] = '行视图';
 $lang['Locked albums are disabled for maintenance. Only administrators can view them in the gallery. Lock this album will also lock his Sub-albums'] = '相册已锁定，无法维护，仅管理员可进入，相册被锁定后，子相册也无法查看。';
 $lang['Manage users with user manager'] = '使用用户管理器管理用户';