diff --git a/src/i18n/strings/cy.json b/src/i18n/strings/cy.json
index d73c13a384..2201111b12 100644
--- a/src/i18n/strings/cy.json
+++ b/src/i18n/strings/cy.json
@@ -831,6 +831,14 @@
         "room_notifications_total": "Cyfanswm: ",
         "room_notifications_type": "Math: ",
         "room_status": "Statws ystafell",
+        "room_unread_status_count": {
+            "zero": "Statws heb eu darllen yn yr ystafell:<strong>%(status)s</strong> , cyfrif:<strong>%(count)s</strong>",
+            "one": "Statws heb ei ddarllen yn yr ystafell:<strong>%(status)s</strong> , cyfrif:<strong>%(count)s</strong>",
+            "two": "Statws heb eu darllen yn yr ystafell:<strong>%(status)s</strong> , cyfrif:<strong>%(count)s</strong>",
+            "few": "Statws heb eu darllen yn yr ystafell:<strong>%(status)s</strong> , cyfrif:<strong>%(count)s</strong>",
+            "many": "Statws heb eu darllen yn yr ystafell:<strong>%(status)s</strong> , cyfrif:<strong>%(count)s</strong>",
+            "other": "Statws heb eu darllen yn yr ystafell:<strong>%(status)s</strong> , cyfrif:<strong>%(count)s</strong>"
+        },
         "save_setting_values": "Cadw gwerthoedd gosod",
         "see_history": "Gweld hanes",
         "send_custom_account_data_event": "Anfon digwyddiad data cyfrif personol",
@@ -849,6 +857,14 @@
         },
         "settings_explorer": "Archwiliwr gosodiadau",
         "show_hidden_events": "Dangos digwyddiadau cudd yn y llinell amser",
+        "spaces": {
+            "zero": "<%(count) s gofodau>",
+            "one": "<space>",
+            "two": "<%(count) s ofod>",
+            "few": "<%(count) s gofod>",
+            "many": "<%(count) s gofod>",
+            "other": "<%(count) s gofod>"
+        },
         "state_key": "Allwedd Cyflwr",
         "thread_root_id": "ID Gwraidd Edefyn: %(threadRootId)s",
         "threads_timeline": "Llinell amser edafedd",
@@ -1155,7 +1171,39 @@
         "error_fetching_file": "Gwall wrth nôl ffeil",
         "export_info": "Dyma ddechrau allforio o<roomName/>. Wedi'i allforio gan<exporterDetails/> yn %(exportDate)s.",
         "export_successful": "Allforio yn llwyddiannus!",
+        "exported_n_events_in_time": {
+            "zero": "Wedi nôl %(count)s digwyddiadau o fewn %(seconds)s e",
+            "one": "Wedi allforio %(count)s digwyddiad o fewn %(seconds)s e",
+            "two": "Wedi nôl %(count)s ddigwyddiad o fewn %(seconds)s e",
+            "few": "Wedi nôl %(count)s digwyddiad o fewn %(seconds)s e",
+            "many": "Wedi nôl %(count)s digwyddiad o fewn %(seconds)s e",
+            "other": "Wedi nôl %(count)s digwyddiad o fewn %(seconds)s e"
+        },
         "exporting_your_data": "Allforio eich data",
+        "fetched_n_events": {
+            "zero": "Wedi nôl %(count)s digwyddiadau hyd yn hyn",
+            "one": "Wedi nôl %(count)s digwyddiad hyd yn hyn",
+            "two": "Wedi nôl %(count)s ddigwyddiad hyd yn hyn",
+            "few": "Wedi nôl %(count)s digwyddiad hyd yn hyn",
+            "many": "Wedi nôl %(count)s digwyddiad hyd yn hyn",
+            "other": "Wedi nôl %(count)s digwyddiad hyd yn hyn"
+        },
+        "fetched_n_events_in_time": {
+            "zero": "Wedi nôl %(count)s digwyddiadau o fewn %(seconds)s e",
+            "one": "Wedi nôl %(count)s digwyddiad o fewn %(seconds)s e",
+            "two": "Wedi nôl %(count)s ddigwyddiad o fewn %(seconds)s e",
+            "few": "Wedi nôl %(count)s digwyddiad o fewn %(seconds)s e",
+            "many": "Wedi nôl %(count)s digwyddiad o fewn %(seconds)s e",
+            "other": "Wedi nôl %(count)s digwyddiad o fewn %(seconds)s e"
+        },
+        "fetched_n_events_with_total": {
+            "zero": "Wedi nôl %(count)s digwyddiadau allan o %(total)s",
+            "one": "Wedi nôl %(count)s digwyddiad allan o %(total)s",
+            "two": "Wedi nôl %(count)s ddigwyddiad allan o %(total)s",
+            "few": "Wedi nôl %(count)s digwyddiad allan o %(total)s",
+            "many": "Wedi nôl %(count)s digwyddiad allan o %(total)s",
+            "other": "Wedi nôl %(count)s digwyddiad allan o %(total)s"
+        },
         "fetching_events": "Wrthi'n nôl digwyddiadau…",
         "file_attached": "Ffeil wedi'i Atodi",
         "format": "Fformat",
@@ -3432,10 +3480,106 @@
         "send_state_sending": "Wrthi'n anfon eich neges…",
         "send_state_sent": "Anfonwyd eich neges",
         "summary": {
-            "format": "%(matereList)s %(transitionList)s"
+            "format": "%(matereList)s %(transitionList)s",
+            "invite_withdrawn_multiple": {
+                "zero": "Cafodd %(severalUsers)s eu gwahoddiadau eu dileu",
+                "one": "Cafodd %(severalUsers)s eu gwahoddiadau eu dileu",
+                "two": "Cafodd %(severalUsers)s eu gwahoddiadau eu dileu %(count)s gwaith",
+                "few": "Cafodd %(severalUsers)s eu gwahoddiadau eu dileu %(count)s gwaith",
+                "many": "Cafodd %(severalUsers)s eu gwahoddiadau eu dileu %(count)s gwaith",
+                "other": "Cafodd %(severalUsers)s eu gwahoddiadau eu dileu %(count)s gwaith"
+            },
+            "joined": {
+                "zero": "Ymunodd %(oneUser)s %(count)s gwaith",
+                "one": "Ymunodd %(oneUser)s",
+                "two": "Ymunodd %(oneUser)s %(count)s gwaith",
+                "few": "Ymunodd %(oneUser)s %(count)s gwaith",
+                "many": "Ymunodd %(oneUser)s %(count)s gwaith",
+                "other": "Ymunodd %(oneUser)s %(count)s gwaith"
+            },
+            "joined_and_left": {
+                "zero": "Ymunodd a gadawodd %(oneUser)s %(count)s gwaith",
+                "one": "Ymunodd a gadawodd %(oneUser)s %(count)s gwaith",
+                "two": "Ymunodd a gadawodd %(oneUser)s %(count)s gwaith",
+                "few": "Ymunodd a gadawodd %(oneUser)s %(count)s gwaith",
+                "many": "Ymunodd a gadawodd %(oneUser)s %(count)s gwaith",
+                "other": "Ymunodd a gadawodd %(oneUser)s %(count)s gwaith"
+            },
+            "joined_and_left_multiple": {
+                "zero": "Ymunodd a gadawodd %(severalUsers)s",
+                "one": "Ymunodd a gadawodd %(severalUsers)s",
+                "two": "Ymunodd a gadawodd %(severalUsers)s %(count)s gwaith",
+                "few": "Ymunodd a gadawodd %(severalUsers)s %(count)s gwaith",
+                "many": "Ymunodd a gadawodd %(severalUsers)s %(count)s gwaith",
+                "other": "Ymunodd a gadawodd %(severalUsers)s %(count)s gwaith"
+            },
+            "joined_multiple": {
+                "zero": "Ymunodd %(severalUsers)s",
+                "one": "Ymunodd %(severalUsers)s %(count)s gwaith",
+                "two": "Ymunodd %(severalUsers)s %(count)s gwaith",
+                "few": "Ymunodd %(severalUsers)s %(count)s gwaith",
+                "many": "Ymunodd %(severalUsers)s %(count)s gwaith",
+                "other": "Ymunodd %(severalUsers)s %(count)s gwaith"
+            },
+            "left": {
+                "zero": "Gadawodd %(oneUser)s",
+                "one": "Gadawodd %(oneUser)s",
+                "two": "Gadawodd %(oneUser)s %(count)s gwaith",
+                "few": "Gadawodd %(oneUser)s %(count)s gwaith",
+                "many": "Gadawodd %(oneUser)s %(count)s gwaith",
+                "other": "Gadawodd %(oneUser)s %(count)s gwaith"
+            },
+            "left_multiple": {
+                "zero": "Gadawodd %(severalUsers)s",
+                "one": "Gadawodd %(severalUsers)s",
+                "two": "Gadawodd %(severalUsers)s %(count)s gwaith",
+                "few": "Gadawodd %(severalUsers)s %(count)s gwaith",
+                "many": "Gadawodd %(severalUsers)s %(count)s gwaith",
+                "other": "Gadawodd %(severalUsers)s %(count)s gwaith"
+            },
+            "rejected_invite": {
+                "zero": "Gwrthododd %(severalUsers)s eu gwahoddiadau",
+                "one": "Gwrthododd %(oneUser)s ei wahoddiad",
+                "two": "Gwrthododd %(oneUser)s eu gwahoddiadau %(count)s gwaith",
+                "few": "Gwrthododd %(oneUser)s eu gwahoddiadau %(count)s gwaith",
+                "many": "Gwrthododd %(oneUser)s eu gwahoddiadau %(count)s gwaith",
+                "other": "Gwrthododd %(oneUser)s eu gwahoddiadau %(count)s gwaith"
+            },
+            "rejected_invite_multiple": {
+                "zero": "Gwrthododd %(severalUsers)s eu gwahoddiadau",
+                "one": "Gwrthododd %(severalUsers)s eu gwahoddiadau",
+                "two": "Gwrthododd %(severalUsers)s eu gwahoddiadau %(count)s gwaith",
+                "few": "Gwrthododd %(severalUsers)s eu gwahoddiadau %(count)s gwaith",
+                "many": "Gwrthododd %(severalUsers)s eu gwahoddiadau %(count)s gwaith",
+                "other": "Gwrthododd %(severalUsers)s eu gwahoddiadau %(count)s gwaith"
+            },
+            "rejoined": {
+                "zero": "Ymunodd a gadawodd %(oneUser)s",
+                "one": "Ymunodd a gadawodd %(oneUser)s",
+                "two": "Ymunodd a gadawodd %(oneUser)s %(count)s gwaith",
+                "few": "Ymunodd a gadawodd %(oneUser)s %(count)s gwaith",
+                "many": "Ymunodd a gadawodd %(oneUser)s %(count)s gwaith",
+                "other": "Ymunodd a gadawodd %(oneUser)s %(count)s gwaith"
+            },
+            "rejoined_multiple": {
+                "zero": "Ymunodd a gadawodd %(severalUsers)s",
+                "one": "Ymunodd a gadawodd %(severalUsers)s",
+                "two": "Ymunodd a gadawodd %(severalUsers)s %(count)s gwaith",
+                "few": "Ymunodd a gadawodd %(severalUsers)s %(count)s gwaith",
+                "many": "Ymunodd a gadawodd %(severalUsers)s %(count)s gwaith",
+                "other": "Ymunodd a gadawodd %(severalUsers)s %(count)s gwaith"
+            }
         },
         "thread_info_basic": "O edefyn",
         "typing_indicator": {
+            "more_users": {
+                "zero": "Mae %(names)s ac mae %(count)s eraill yn teipio...",
+                "one": "Mae %(names)s ac mae un arall yn teipio...",
+                "two": "Mae %(names)s ac mae %(count)s eraill yn teipio...",
+                "few": "Mae %(names)s ac mae %(count)s eraill yn teipio...",
+                "many": "Mae %(names)s ac mae %(count)s eraill yn teipio...",
+                "other": "Mae %(names)s ac mae %(count)s eraill yn teipio..."
+            },
             "one_user": "Mae %(displayName)s yn teipio…",
             "two_users": "Mae %(materes)s a %(lastPerson)s yn teipio…"
         },
diff --git a/src/i18n/strings/et.json b/src/i18n/strings/et.json
index 666ed60825..e682ee7ad8 100644
--- a/src/i18n/strings/et.json
+++ b/src/i18n/strings/et.json
@@ -2119,6 +2119,7 @@
         "filters": {
             "favourite": "Lemmikud",
             "invites": "Kutsed",
+            "low_priority": "Vähetähtis",
             "mentions": "Mainimised",
             "people": "Inimesed",
             "rooms": "Jututoad",
diff --git a/src/i18n/strings/fr.json b/src/i18n/strings/fr.json
index 9992d5e51f..6336ee90c4 100644
--- a/src/i18n/strings/fr.json
+++ b/src/i18n/strings/fr.json
@@ -912,7 +912,7 @@
     "encryption": {
         "access_secret_storage_dialog": {
             "key_validation_text": {
-                "wrong_security_key": "Clé de récupération incorrecte"
+                "wrong_security_key": "La clé de récupération que vous avez saisie est incorrecte."
             },
             "restoring": "Restauration des clés depuis la sauvegarde",
             "security_key_title": "Clé de récupération"
diff --git a/src/i18n/strings/lt.json b/src/i18n/strings/lt.json
index 101e8fbc0c..3c8ca8fbab 100644
--- a/src/i18n/strings/lt.json
+++ b/src/i18n/strings/lt.json
@@ -1940,9 +1940,12 @@
             "unknown": "%(senderDisplayName)s pakeitė prisijungimo taisyklę į %(rule)s"
         },
         "m.room.member": {
+            "accepted_3pid_invite": "%(targetName)s priėmė kvietimą, skirtą %(displayName)s",
+            "accepted_invite": "%(targetName)s priėmė kvietimą",
             "ban": "%(senderName)s užblokavo %(targetName)s",
             "change_avatar": "%(senderName)s pakeitė savo profilio nuotrauką",
             "change_name": "%(oldDisplayName)s pasikeitė savo rodomą vardą į %(displayName)s",
+            "invite": "%(senderName)s pakvietė %(targetName)s",
             "join": "%(targetName)s prisijungė prie kambario",
             "kick": "%(senderName)s pašalino %(targetName)s",
             "kick_reason": "%(senderName)s pašalino %(targetName)s: %(reason)s",
diff --git a/src/i18n/strings/nb_NO.json b/src/i18n/strings/nb_NO.json
index cab5ac8a05..ea8bd892ac 100644
--- a/src/i18n/strings/nb_NO.json
+++ b/src/i18n/strings/nb_NO.json
@@ -2119,6 +2119,7 @@
         "filters": {
             "favourite": "Favoritter",
             "invites": "Invitasjoner",
+            "low_priority": "Lav prioritet",
             "mentions": "Omtaler",
             "people": "Personer",
             "rooms": "Rom",
diff --git a/src/i18n/strings/pt_BR.json b/src/i18n/strings/pt_BR.json
index c0f38b3163..310895102b 100644
--- a/src/i18n/strings/pt_BR.json
+++ b/src/i18n/strings/pt_BR.json
@@ -2118,6 +2118,7 @@
         "filters": {
             "favourite": "Favoritos",
             "invites": "Convites",
+            "low_priority": "Baixa prioridade",
             "mentions": "Menções",
             "people": "Pessoas",
             "rooms": "Salas",
diff --git a/src/i18n/strings/sk.json b/src/i18n/strings/sk.json
index 07e7ffeeb1..8857ca5cb0 100644
--- a/src/i18n/strings/sk.json
+++ b/src/i18n/strings/sk.json
@@ -2149,6 +2149,7 @@
         "filters": {
             "favourite": "Obľúbené",
             "invites": "Pozvánky",
+            "low_priority": "Nízka priorita",
             "mentions": "Zmienky",
             "people": "Ľudia",
             "rooms": "Miestnosti",