diff --git a/public/language/ar/groups.json b/public/language/ar/groups.json
index 9e75f9a790..196a286de6 100644
--- a/public/language/ar/groups.json
+++ b/public/language/ar/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "الدعوة بانتظار القبول",
     "membership.join-group": "انظم للمجموعة",
     "membership.leave-group": "غادر المجموعة",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "رفض",
     "new-group.group_name": "اسم المجموعة",
     "upload-group-cover": "Upload group cover",
diff --git a/public/language/bg/groups.json b/public/language/bg/groups.json
index d8314b2bb8..313d5aaef0 100644
--- a/public/language/bg/groups.json
+++ b/public/language/bg/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Чакаща покана",
     "membership.join-group": "Присъединяване към групата",
     "membership.leave-group": "Напускане на групата",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Отхвърляне",
     "new-group.group_name": "Име на групата:",
     "upload-group-cover": "Качване на снимка за показване на групата",
diff --git a/public/language/bn/groups.json b/public/language/bn/groups.json
index 8eb607c2f1..8adb5de82d 100644
--- a/public/language/bn/groups.json
+++ b/public/language/bn/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Invitation Pending",
     "membership.join-group": "Join Group",
     "membership.leave-group": "Leave Group",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Reject",
     "new-group.group_name": "Group Name:",
     "upload-group-cover": "Upload group cover",
diff --git a/public/language/cs/groups.json b/public/language/cs/groups.json
index d29fdf0881..800b1a9f32 100644
--- a/public/language/cs/groups.json
+++ b/public/language/cs/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Čekající pozvání",
     "membership.join-group": "Vstoupit do skupiny",
     "membership.leave-group": "Opustit skupinu",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Odmítnout",
     "new-group.group_name": "Název skupiny:",
     "upload-group-cover": "Nahrát titulní obrázek skupiny",
diff --git a/public/language/da/groups.json b/public/language/da/groups.json
index 78eb000c94..9076effaff 100644
--- a/public/language/da/groups.json
+++ b/public/language/da/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Afventende Invitationer",
     "membership.join-group": "Bliv medlem af gruppe",
     "membership.leave-group": "Forlad Gruppe",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Afvis",
     "new-group.group_name": "Gruppe Navn:",
     "upload-group-cover": "Upload Gruppe coverbillede",
diff --git a/public/language/de/groups.json b/public/language/de/groups.json
index b52478eb5c..2f17c2631f 100644
--- a/public/language/de/groups.json
+++ b/public/language/de/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Einladung ausstehend",
     "membership.join-group": "Gruppe beitreten",
     "membership.leave-group": "Gruppe verlassen",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Ablehnen",
     "new-group.group_name": "Gruppenname:",
     "upload-group-cover": "Gruppentitelbild hochladen",
diff --git a/public/language/el/groups.json b/public/language/el/groups.json
index 7aa4555d6c..eaa90a3803 100644
--- a/public/language/el/groups.json
+++ b/public/language/el/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Invitation Pending",
     "membership.join-group": "Join Group",
     "membership.leave-group": "Leave Group",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Reject",
     "new-group.group_name": "Group Name:",
     "upload-group-cover": "Upload group cover",
diff --git a/public/language/en-US/groups.json b/public/language/en-US/groups.json
index 5620026bd1..132200d213 100644
--- a/public/language/en-US/groups.json
+++ b/public/language/en-US/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Invitation Pending",
     "membership.join-group": "Join Group",
     "membership.leave-group": "Leave Group",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Reject",
     "new-group.group_name": "Group Name:",
     "upload-group-cover": "Upload group cover",
diff --git a/public/language/en-x-pirate/groups.json b/public/language/en-x-pirate/groups.json
index 5620026bd1..132200d213 100644
--- a/public/language/en-x-pirate/groups.json
+++ b/public/language/en-x-pirate/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Invitation Pending",
     "membership.join-group": "Join Group",
     "membership.leave-group": "Leave Group",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Reject",
     "new-group.group_name": "Group Name:",
     "upload-group-cover": "Upload group cover",
diff --git a/public/language/es/groups.json b/public/language/es/groups.json
index c3230902f8..1ae4aa37b4 100644
--- a/public/language/es/groups.json
+++ b/public/language/es/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Invitación Pendiente",
     "membership.join-group": "Unirse al grupo",
     "membership.leave-group": "Dejar el grupo",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Rechazar",
     "new-group.group_name": "Nombre de Grupo:",
     "upload-group-cover": "Cargar foto para el grupo",
diff --git a/public/language/et/groups.json b/public/language/et/groups.json
index 41874ecf74..89a2efccf7 100644
--- a/public/language/et/groups.json
+++ b/public/language/et/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Kutse ootel",
     "membership.join-group": "Liitu grupiga",
     "membership.leave-group": "Lahku grupist",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Lükka tagasi",
     "new-group.group_name": "Grupi nimi:",
     "upload-group-cover": "Lae gruppi pilt üles",
diff --git a/public/language/fa-IR/groups.json b/public/language/fa-IR/groups.json
index 0b2333139d..9a16084135 100644
--- a/public/language/fa-IR/groups.json
+++ b/public/language/fa-IR/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "در انتظار تایید",
     "membership.join-group": "ورود به گروه",
     "membership.leave-group": "خروج از گروه",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "رد",
     "new-group.group_name": "نام گروه:",
     "upload-group-cover": "آپلود کاور گروه",
diff --git a/public/language/fi/groups.json b/public/language/fi/groups.json
index 70e6381da2..01dc3a0f72 100644
--- a/public/language/fi/groups.json
+++ b/public/language/fi/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Invitation Pending",
     "membership.join-group": "Join Group",
     "membership.leave-group": "Leave Group",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Reject",
     "new-group.group_name": "Group Name:",
     "upload-group-cover": "Upload group cover",
diff --git a/public/language/fr/groups.json b/public/language/fr/groups.json
index 6493780ac0..892ec6529e 100644
--- a/public/language/fr/groups.json
+++ b/public/language/fr/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Invitation en attente",
     "membership.join-group": "Rejoindre le groupe",
     "membership.leave-group": "Quitter le groupe",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Refuser",
     "new-group.group_name": "Nom du groupe :",
     "upload-group-cover": "Envoyer une image de groupe",
diff --git a/public/language/gl/groups.json b/public/language/gl/groups.json
index 8cec9bca91..aa6636c3dc 100644
--- a/public/language/gl/groups.json
+++ b/public/language/gl/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Invitación Pendente",
     "membership.join-group": "Unirse ao grupo",
     "membership.leave-group": "Marchar do grupo",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Rexeitar",
     "new-group.group_name": "Nome do grupo:",
     "upload-group-cover": "Cargar foto para o grupo",
diff --git a/public/language/he/groups.json b/public/language/he/groups.json
index 2075c7f50f..d5918ae1e5 100644
--- a/public/language/he/groups.json
+++ b/public/language/he/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "הזמנה ממתינה",
     "membership.join-group": "הצטרף לקבוצה",
     "membership.leave-group": "עזוב קבוצה",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "דחה",
     "new-group.group_name": "שם קבוצה",
     "upload-group-cover": "העלה תמונת נושא לקבוצה",
diff --git a/public/language/hr/groups.json b/public/language/hr/groups.json
index b38e71601b..a89cc05db7 100644
--- a/public/language/hr/groups.json
+++ b/public/language/hr/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Pozivnica na čekanju",
     "membership.join-group": "Priključi se u grupu",
     "membership.leave-group": "Izađi iz grupe",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Odbij",
     "new-group.group_name": "Ime grupe:",
     "upload-group-cover": "Promjeni naslovnicu grupe",
diff --git a/public/language/hu/groups.json b/public/language/hu/groups.json
index 913fa3b07a..e30a42d83a 100644
--- a/public/language/hu/groups.json
+++ b/public/language/hu/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Függőben levő meghívás",
     "membership.join-group": "Csoporthoz csatlakozás",
     "membership.leave-group": "Csoport elhagyása",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Elutasítás",
     "new-group.group_name": "Csoport neve:",
     "upload-group-cover": "Csoport fedőkép feltöltése",
diff --git a/public/language/id/groups.json b/public/language/id/groups.json
index cf55e20e1e..7379239d68 100644
--- a/public/language/id/groups.json
+++ b/public/language/id/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Invitation Pending",
     "membership.join-group": "Join Group",
     "membership.leave-group": "Leave Group",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Reject",
     "new-group.group_name": "Group Name:",
     "upload-group-cover": "Upload group cover",
diff --git a/public/language/it/groups.json b/public/language/it/groups.json
index 8c5c46f1ec..b36d2ddd65 100644
--- a/public/language/it/groups.json
+++ b/public/language/it/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Invito in sospeso",
     "membership.join-group": "Unisciti al Gruppo",
     "membership.leave-group": "Lascia il Gruppo",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Rifiuta",
     "new-group.group_name": "Nome Gruppo:",
     "upload-group-cover": "Carica copertina gruppo",
diff --git a/public/language/ja/groups.json b/public/language/ja/groups.json
index 76288f3c21..83821e8072 100644
--- a/public/language/ja/groups.json
+++ b/public/language/ja/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "招待を保留",
     "membership.join-group": "グループへ参加",
     "membership.leave-group": "グループから離脱",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "拒否",
     "new-group.group_name": "グループ名:",
     "upload-group-cover": "グループのカバーをアップロード",
diff --git a/public/language/ko/groups.json b/public/language/ko/groups.json
index 9e765e7458..654671f36b 100644
--- a/public/language/ko/groups.json
+++ b/public/language/ko/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "보류중인 초대 수락",
     "membership.join-group": "그룹 들어가기",
     "membership.leave-group": "그룹 나가기",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "거절",
     "new-group.group_name": "그룹명:",
     "upload-group-cover": "그룹 커버 사진 업로드",
diff --git a/public/language/lt/groups.json b/public/language/lt/groups.json
index a293ba5689..e140b9b84b 100644
--- a/public/language/lt/groups.json
+++ b/public/language/lt/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Pakvietimas Laukiamas",
     "membership.join-group": "Prisijungti Prie Grupės",
     "membership.leave-group": "Palikti Grupę",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Atšaukti",
     "new-group.group_name": "Grupės pavadinimas:",
     "upload-group-cover": "Upload group cover",
diff --git a/public/language/lv/groups.json b/public/language/lv/groups.json
index 95336d7260..ff1cdeea83 100644
--- a/public/language/lv/groups.json
+++ b/public/language/lv/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Neapstiprināts ielūgums",
     "membership.join-group": "Pievienoties grupai",
     "membership.leave-group": "Atstāt grupu",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Noraidīt",
     "new-group.group_name": "Grupas nosaukums",
     "upload-group-cover": "Augšupielādēt grupas galvenes bildi",
diff --git a/public/language/ms/groups.json b/public/language/ms/groups.json
index f9b09c2def..19d3a57428 100644
--- a/public/language/ms/groups.json
+++ b/public/language/ms/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Jemputan Menunggu",
     "membership.join-group": "Masuk Kumpulan",
     "membership.leave-group": "Keluar Kumpulan",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Tolak",
     "new-group.group_name": "Nama Kumpulan:",
     "upload-group-cover": "Upload group cover",
diff --git a/public/language/nb/groups.json b/public/language/nb/groups.json
index 9870f54c93..82a4af42bb 100644
--- a/public/language/nb/groups.json
+++ b/public/language/nb/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Invitasjon venter",
     "membership.join-group": "Bli med i gruppe",
     "membership.leave-group": "Forlat gruppe",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Avslå",
     "new-group.group_name": "Gruppenavn:",
     "upload-group-cover": "Upload group cover",
diff --git a/public/language/nl/groups.json b/public/language/nl/groups.json
index 32a90021fe..07f59cf79e 100644
--- a/public/language/nl/groups.json
+++ b/public/language/nl/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Openstaande uitnodiging",
     "membership.join-group": "Deelnemen aan groep",
     "membership.leave-group": "Verlaat groep",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Afwijzen",
     "new-group.group_name": "Groepsnaam:",
     "upload-group-cover": "Upload groepscover",
diff --git a/public/language/pl/groups.json b/public/language/pl/groups.json
index a57b84ee46..e983d428c2 100644
--- a/public/language/pl/groups.json
+++ b/public/language/pl/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Oczekujące zaproszenie",
     "membership.join-group": "Dołącz do grupy",
     "membership.leave-group": "Opuść grupę",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Odrzuć",
     "new-group.group_name": "Nazwa grupy:",
     "upload-group-cover": "Prześlij zdjęcie tła grupy",
diff --git a/public/language/pt-BR/groups.json b/public/language/pt-BR/groups.json
index b157665b84..14bb379505 100644
--- a/public/language/pt-BR/groups.json
+++ b/public/language/pt-BR/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Convite Pendente",
     "membership.join-group": "Entrar no Grupo",
     "membership.leave-group": "Deixar Grupo",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Rejeitar",
     "new-group.group_name": "Nome do Grupo:",
     "upload-group-cover": "Fazer upload de capa do grupo",
diff --git a/public/language/pt-PT/groups.json b/public/language/pt-PT/groups.json
index 9110dcea4d..769c50e7f1 100644
--- a/public/language/pt-PT/groups.json
+++ b/public/language/pt-PT/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Convite em espera",
     "membership.join-group": "Aderir ao grupo",
     "membership.leave-group": "Sair do grupo",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Rejeitar",
     "new-group.group_name": "Nome do grupo:",
     "upload-group-cover": "Carregar capa do grupo",
diff --git a/public/language/ro/groups.json b/public/language/ro/groups.json
index 54cd467d98..245c58160e 100644
--- a/public/language/ro/groups.json
+++ b/public/language/ro/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Invitație in așteptare",
     "membership.join-group": "Alăture-te grupului",
     "membership.leave-group": "Părăsește grupul",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Respinge",
     "new-group.group_name": "Numele grupului:",
     "upload-group-cover": "Încarcă coperta de grup",
diff --git a/public/language/ru/groups.json b/public/language/ru/groups.json
index e2100aaf5b..58c13025a5 100644
--- a/public/language/ru/groups.json
+++ b/public/language/ru/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Заявка на рассмотрении",
     "membership.join-group": "Вступить",
     "membership.leave-group": "Покинуть",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Отклонить",
     "new-group.group_name": "Название группы:",
     "upload-group-cover": "Загрузить обложку группы",
diff --git a/public/language/rw/groups.json b/public/language/rw/groups.json
index ec2c965e52..cd3537025f 100644
--- a/public/language/rw/groups.json
+++ b/public/language/rw/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Ubutumire Buracyategereje",
     "membership.join-group": "Injira mu Itsinda",
     "membership.leave-group": "Va mu Itsinda",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Hakanira",
     "new-group.group_name": "Izina ry'Itsinda:",
     "upload-group-cover": "Shyiraho ifoto yo hejuru iranga itsinda",
diff --git a/public/language/sc/groups.json b/public/language/sc/groups.json
index 5620026bd1..132200d213 100644
--- a/public/language/sc/groups.json
+++ b/public/language/sc/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Invitation Pending",
     "membership.join-group": "Join Group",
     "membership.leave-group": "Leave Group",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Reject",
     "new-group.group_name": "Group Name:",
     "upload-group-cover": "Upload group cover",
diff --git a/public/language/sk/groups.json b/public/language/sk/groups.json
index 1f6a1bc008..defc8cdad5 100644
--- a/public/language/sk/groups.json
+++ b/public/language/sk/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Pozvánka čakajúca na vybavenie",
     "membership.join-group": "Pripojiť do skupiny",
     "membership.leave-group": "Opustiť skupinu",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Odmietnuť",
     "new-group.group_name": "Názov skupiny:",
     "upload-group-cover": "Nahrať obrázok skupiny",
diff --git a/public/language/sl/groups.json b/public/language/sl/groups.json
index 438e254541..0e1291951d 100644
--- a/public/language/sl/groups.json
+++ b/public/language/sl/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Čakajoče vabilo",
     "membership.join-group": "Pridruži se skupini",
     "membership.leave-group": "Zapusti skupino",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Zavrni",
     "new-group.group_name": "Ime skupine:",
     "upload-group-cover": "Upload group cover",
diff --git a/public/language/sr/groups.json b/public/language/sr/groups.json
index 4e6dd2bff2..1ebe08da8d 100644
--- a/public/language/sr/groups.json
+++ b/public/language/sr/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Позиви на чекању",
     "membership.join-group": "Придружите се групи",
     "membership.leave-group": "Напусти групу",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Одбаци",
     "new-group.group_name": "Име групе:",
     "upload-group-cover": "Отпреми насловницу групе",
diff --git a/public/language/sv/groups.json b/public/language/sv/groups.json
index 04b8280630..3e8df3981d 100644
--- a/public/language/sv/groups.json
+++ b/public/language/sv/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Inbjudan väntar på svar",
     "membership.join-group": "Gå med i grupp",
     "membership.leave-group": "Lämna grupp",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Neka",
     "new-group.group_name": "Gruppnamn:",
     "upload-group-cover": "Ladda upp omslagsbild för grupp",
diff --git a/public/language/th/groups.json b/public/language/th/groups.json
index 3db2d146dc..6488e3f794 100644
--- a/public/language/th/groups.json
+++ b/public/language/th/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "คำเชิญที่รอการอนุมัติ",
     "membership.join-group": "เข้าร่วมกลุ่ม",
     "membership.leave-group": "ออกจากกลุ่ม",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "ปฏิเสธ",
     "new-group.group_name": "ชื่อกลุ่ม:",
     "upload-group-cover": "อัพโหลดหน้าปกกลุ่ม",
diff --git a/public/language/tr/groups.json b/public/language/tr/groups.json
index 835d015f13..106164d283 100644
--- a/public/language/tr/groups.json
+++ b/public/language/tr/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Davet beklemede",
     "membership.join-group": "Gruba Katıl",
     "membership.leave-group": "Gruptan Ayrıl",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Reddet",
     "new-group.group_name": "Grup İsmi:",
     "upload-group-cover": "Grup kapağı yükle",
diff --git a/public/language/uk/groups.json b/public/language/uk/groups.json
index 1a80b34fce..a3f5cd8bdb 100644
--- a/public/language/uk/groups.json
+++ b/public/language/uk/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Запрошення в черзі",
     "membership.join-group": "Приєднатися до групи",
     "membership.leave-group": "Покинути групу",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Відхилити",
     "new-group.group_name": "Назва групи:",
     "upload-group-cover": "Завантажити обкладинку групи",
diff --git a/public/language/vi/groups.json b/public/language/vi/groups.json
index e7fe17a796..8e69824345 100644
--- a/public/language/vi/groups.json
+++ b/public/language/vi/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "Lời mời đang chờ trả lời",
     "membership.join-group": "Tham gia nhóm",
     "membership.leave-group": "Rời khỏi nhóm",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "Từ chối",
     "new-group.group_name": "Tên nhóm",
     "upload-group-cover": "Tải ảnh bìa lên cho nhóm",
diff --git a/public/language/zh-CN/groups.json b/public/language/zh-CN/groups.json
index 3484a63b88..119d204c46 100644
--- a/public/language/zh-CN/groups.json
+++ b/public/language/zh-CN/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "邀请中",
     "membership.join-group": "加入群组",
     "membership.leave-group": "退出群组",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "拒绝",
     "new-group.group_name": "群组名: ",
     "upload-group-cover": "上传群组封面",
diff --git a/public/language/zh-TW/groups.json b/public/language/zh-TW/groups.json
index fb3af8109d..854d6c4879 100644
--- a/public/language/zh-TW/groups.json
+++ b/public/language/zh-TW/groups.json
@@ -53,6 +53,7 @@
     "membership.invitation-pending": "邀請等待中",
     "membership.join-group": "加入群組",
     "membership.leave-group": "離開群組",
+    "membership.leave.notification_title": "<strong>%1</strong> has left group <strong>%2</strong>",
     "membership.reject": "拒絕",
     "new-group.group_name": "群組名稱:",
     "upload-group-cover": "上傳群組封面圖",