diff --git a/res/values-it/strings.xml b/res/values-it/strings.xml
index 46fb8adcf..33e26aa38 100644
--- a/res/values-it/strings.xml
+++ b/res/values-it/strings.xml
@@ -4,7 +4,9 @@
     <string name="app_name">Delta Chat</string>
     <string name="ok">OK</string>
     <string name="cancel">Annulla</string>
-   <string name="clear_search">Cancella Ricerca</string>
+   <!-- the word "or" to separate blocks in the user interface that are mutually exclusive -->
+    <string name="or_separator">o</string>
+    <string name="clear_search">Cancella Ricerca</string>
     <string name="yes">Sì</string>
     <string name="no">No</string>
     <string name="select">Seleziona</string>
@@ -803,6 +805,7 @@
     <!-- system messages -->
     <string name="systemmsg_read_receipt_subject">Ricevuta di lettura</string>
     <string name="systemmsg_read_receipt_body">Questa è una ricevuta di lettura del messaggio \"%1$s\".\n\nCiò significa che il messaggio è stato mostrato nel dispositivo del destinatario, ma non necessariamente che il contenuto è stato letto.</string>
+    <string name="systemmsg_cannot_decrypt">Questo messaggio non può essere decrittografato.\n\n• Potrebbe essere già utile rispondere semplicemente a questo messaggio e chiedere al mittente d\'inviare nuovamente il messaggio.\n\n• Se hai appena reinstallato Delta Chat, è meglio se riconfiguri ora Delta Chat e scegli \"Aggiungi come secondo dispositivo\" o importa un backup.</string>
     <string name="systemmsg_unknown_sender_for_chat">Mittente sconosciuto per questa chat. Vedi \'info\' per maggiori dettagli.</string>
     <string name="systemmsg_subject_for_new_contact">Messaggio da %1$s</string>
     <string name="systemmsg_failed_sending_to">Impossibile inviare il messaggio a %1$s.</string>
@@ -814,6 +817,8 @@
     <!-- %1$s will be replaced by name and address of the contact who did the action -->
     <string name="group_image_changed_by_other">Immagine del gruppo cambiata da %1$s.</string>
     <!-- %1$s will be replaced by name and address of the contact added to the group -->
+    <string name="member_x_added">Membro %1$s aggiunto.</string>
+    <!-- %1$s will be replaced by name and address of the contact added to the group -->
     <string name="add_member_by_you">Hai aggiunto un membro %1$s.</string>
     <!-- %1$s will be replaced by name and address of the contact added to the group, %2$s will be replaced by name and address of the contact who did the action -->
     <string name="add_member_by_other">Membro %1$s aggiunto da %2$s.</string>
diff --git a/res/values-nl/strings.xml b/res/values-nl/strings.xml
index 999dec40e..d060e5735 100644
--- a/res/values-nl/strings.xml
+++ b/res/values-nl/strings.xml
@@ -4,7 +4,9 @@
     <string name="app_name">Delta Chat</string>
     <string name="ok">Oké</string>
     <string name="cancel">Annuleren</string>
-   <string name="clear_search">Zoekopdracht wissen</string>
+   <!-- the word "or" to separate blocks in the user interface that are mutually exclusive -->
+    <string name="or_separator">of</string>
+    <string name="clear_search">Zoekopdracht wissen</string>
     <string name="yes">Ja</string>
     <string name="no">Nee</string>
     <string name="select">Selecteren</string>
@@ -788,6 +790,7 @@
     <!-- system messages -->
     <string name="systemmsg_read_receipt_subject">Leesbevestiging</string>
     <string name="systemmsg_read_receipt_body">Het door jou verstuurde bericht, “%1$s”, heeft het scherm van de ontvanger bereikt.\n\nDit betekent echter niet dat het ook gelezen is.</string>
+    <string name="systemmsg_cannot_decrypt">Dit bericht kan niet worden ontsleuteld.\n\n• Het kan helpen dit bericht te beantwoorden en de afzender te vragen het opnieuw te versturen.\n\n• Als je Delta Chat of een andere e-mailapp opnieuw hebt geïnstalleerd, voeg het dan toe als tweede apparaat of importeer een reservekopie.</string>
     <string name="systemmsg_unknown_sender_for_chat">Dit gesprek bevat een onbekende afzender. Zie ‘Informatie’ voor meer informatie.</string>
     <string name="systemmsg_subject_for_new_contact">Bericht van %1$s</string>
     <string name="systemmsg_failed_sending_to">Het bericht kan niet worden verstuurd aan %1$s.</string>
@@ -799,6 +802,8 @@
     <!-- %1$s will be replaced by name and address of the contact who did the action -->
     <string name="group_image_changed_by_other">De groepsafbeelding is gewijzigd door %1$s.</string>
     <!-- %1$s will be replaced by name and address of the contact added to the group -->
+    <string name="member_x_added">‘%1$s’ is toegevoegd.</string>
+    <!-- %1$s will be replaced by name and address of the contact added to the group -->
     <string name="add_member_by_you">Je hebt ‘%1$s’ toegevoegd.</string>
     <!-- %1$s will be replaced by name and address of the contact added to the group, %2$s will be replaced by name and address of the contact who did the action -->
     <string name="add_member_by_other">‘%1$s’ is toegevoegd door %2$s.</string>
diff --git a/res/values-sq/strings.xml b/res/values-sq/strings.xml
index 5924668eb..39c408eb4 100644
--- a/res/values-sq/strings.xml
+++ b/res/values-sq/strings.xml
@@ -4,7 +4,9 @@
     <string name="app_name">Delta Chat</string>
     <string name="ok">OK</string>
     <string name="cancel">Anuloje</string>
-   <string name="clear_search">Spastroje kërkimin</string>
+   <!-- the word "or" to separate blocks in the user interface that are mutually exclusive -->
+    <string name="or_separator">ose</string>
+    <string name="clear_search">Spastroje kërkimin</string>
     <string name="yes">Po</string>
     <string name="no">Jo</string>
     <string name="select">Përzgjidhni</string>
@@ -785,6 +787,7 @@
     <!-- system messages -->
     <string name="systemmsg_read_receipt_subject">Dëftesë leximi</string>
     <string name="systemmsg_read_receipt_body">Kjo është dëftesë leximi për mesazhin \"%1$s\".\n\nDo të thotë që mesazhi u shfaq te pajisja e marrësit, jo domosdo që lënda u lexua.</string>
+    <string name="systemmsg_cannot_decrypt">Ky mesazh s’mund të shfshehtëzohet.\n\n• Mundet t’ju ndihë thjesht t’i përgjigjeni këtij mesazhi dhe t’i kërkoni dërguesit ta ridërgojë mesazhin.\n\n• Nëse sapo riinstaluat Delta Chat-in, atëherë më e mira është të riujdisni Delta Chat-in tani dhe të zgjidhni “Shtoje si pajisje të dytë”, ose të importoni një kopjeruajtje.</string>
     <string name="systemmsg_unknown_sender_for_chat">Dërgues i panjohur për këtë fjalosje. Për më tepër hollësi, shihni \'info\'.</string>
     <string name="systemmsg_subject_for_new_contact">Mesazh nga %1$s</string>
     <string name="systemmsg_failed_sending_to">S’u arrit të dërgohej mesazh te %1$s.</string>
@@ -796,6 +799,8 @@
     <!-- %1$s will be replaced by name and address of the contact who did the action -->
     <string name="group_image_changed_by_other">Figura e grupit u ndryshua nga %1$s.</string>
     <!-- %1$s will be replaced by name and address of the contact added to the group -->
+    <string name="member_x_added">U shtua anëtar %1$s.</string>
+    <!-- %1$s will be replaced by name and address of the contact added to the group -->
     <string name="add_member_by_you">Shtuat anëtarin %1$s.</string>
     <!-- %1$s will be replaced by name and address of the contact added to the group, %2$s will be replaced by name and address of the contact who did the action -->
     <string name="add_member_by_other">Anëtari %1$s u shtua nga %2$s.</string>
diff --git a/res/values-tr/strings.xml b/res/values-tr/strings.xml
index 302248496..c737fc08c 100644
--- a/res/values-tr/strings.xml
+++ b/res/values-tr/strings.xml
@@ -4,7 +4,9 @@
     <string name="app_name">Delta Chat</string>
     <string name="ok">Tamam</string>
     <string name="cancel">İptal</string>
-   <string name="clear_search">Aramayı Temizle</string>
+   <!-- the word "or" to separate blocks in the user interface that are mutually exclusive -->
+    <string name="or_separator">ya da</string>
+    <string name="clear_search">Aramayı Temizle</string>
     <string name="yes">Evet</string>
     <string name="no">Hayır</string>
     <string name="select">Seç</string>
@@ -788,6 +790,7 @@
     <!-- system messages -->
     <string name="systemmsg_read_receipt_subject">İleti açıldı</string>
     <string name="systemmsg_read_receipt_body">Gönderdiğiniz \"%1$s\" iletisi alıcının ekranında görüntülendi.\n\nBu, içeriğin okunduğunun güvencesi değildir.</string>
+    <string name="systemmsg_cannot_decrypt">Bu ileti şifresi çözülemiyor.\n\n• Bu iletiye basitçe yanıt vermek ve gönderenden iletiyi yeniden göndermesini istemek zaten yardımcı olabilir.\n\n• Delta Chat\'i yeni kurduysanız, Delta Chat\'i şimdi yeniden ayarlayıp \"İkinci aygıt olarak ekle\"yi seçmeniz ya da bir yedeği içe aktarmanız en iyisidir.</string>
     <string name="systemmsg_unknown_sender_for_chat">Bu sohbet için bilinmeyen gönderen. Daha fazla ayrıntı için \'bilgi\'ye bakın.</string>
     <string name="systemmsg_subject_for_new_contact">%1$s kişisinden gelen ileti</string>
     <string name="systemmsg_failed_sending_to">%1$s kişisine ileti gönderme başarısız.</string>
@@ -799,6 +802,8 @@
     <!-- %1$s will be replaced by name and address of the contact who did the action -->
     <string name="group_image_changed_by_other">%1$s tarafından öbek görseli değiştirildi.</string>
     <!-- %1$s will be replaced by name and address of the contact added to the group -->
+    <string name="member_x_added">%1$s üyesi eklendi.</string>
+    <!-- %1$s will be replaced by name and address of the contact added to the group -->
     <string name="add_member_by_you">%1$s üyesini eklediniz.</string>
     <!-- %1$s will be replaced by name and address of the contact added to the group, %2$s will be replaced by name and address of the contact who did the action -->
     <string name="add_member_by_other">%2$s tarafından %1$s üyesi eklendi.</string>
diff --git a/res/values-zh-rCN/strings.xml b/res/values-zh-rCN/strings.xml
index 8ee483dd9..a45f83d5e 100644
--- a/res/values-zh-rCN/strings.xml
+++ b/res/values-zh-rCN/strings.xml
@@ -4,7 +4,9 @@
     <string name="app_name">Delta Chat</string>
     <string name="ok">确定</string>
     <string name="cancel">取消</string>
-   <string name="clear_search">清除搜索</string>
+   <!-- the word "or" to separate blocks in the user interface that are mutually exclusive -->
+    <string name="or_separator">或</string>
+    <string name="clear_search">清除搜索</string>
     <string name="yes">是</string>
     <string name="no">否</string>
     <string name="select">选择</string>
@@ -773,6 +775,7 @@
     <!-- system messages -->
     <string name="systemmsg_read_receipt_subject">消息已被打开</string>
     <string name="systemmsg_read_receipt_body">您发送的“%1$s”消息已在接收者的屏幕上显示过。\n\n这并不保证内容已被阅读。</string>
+    <string name="systemmsg_cannot_decrypt">无法解密此消息。\n\n• 简化对此消息的回复并请求发送方再次发送消息可能会有帮助。\n\n•  如果你刚重新安装 Delta Chat，你最好立即重新设置 Delta Chat 并选择“添加为第二台设备”或导入备份文件。</string>
     <string name="systemmsg_unknown_sender_for_chat">此聊天发送者未知。查看“信息”来获取更多详情。</string>
     <string name="systemmsg_subject_for_new_contact">来自 %1$s 的消息</string>
     <string name="systemmsg_failed_sending_to">发送消息给 %1$s 失败。</string>
@@ -784,6 +787,8 @@
     <!-- %1$s will be replaced by name and address of the contact who did the action -->
     <string name="group_image_changed_by_other">%1$s 更改了群组图像</string>
     <!-- %1$s will be replaced by name and address of the contact added to the group -->
+    <string name="member_x_added">添加了成员 %1$s 。</string>
+    <!-- %1$s will be replaced by name and address of the contact added to the group -->
     <string name="add_member_by_you">你添加了成员 %1$s</string>
     <!-- %1$s will be replaced by name and address of the contact added to the group, %2$s will be replaced by name and address of the contact who did the action -->
     <string name="add_member_by_other">%2$s 添加了成员 %1$s</string>