diff --git a/assets/base/i18n/cs.json b/assets/base/i18n/cs.json
index bddb2caa9..d6dc84fb7 100644
--- a/assets/base/i18n/cs.json
+++ b/assets/base/i18n/cs.json
@@ -328,6 +328,10 @@
   "drafts.empty.title": "Momentálně žádné koncepty",
   "drafts_tab.title.drafts": "Koncepty",
   "drafts_tab.title.scheduled": "Naplánováno",
+  "edit_post.delete_file.cancel": "Zrušit",
+  "edit_post.delete_file.confirm": "Smazat",
+  "edit_post.delete_file.confirmation": "Jste si jisti, že chcete odebrat {filename}?",
+  "edit_post.delete_file.title": "Odstranit přílohu",
   "edit_post.editPost": "Upravit příspěvek...",
   "edit_post.save": "Uložit",
   "edit_server.description": "Uveďte zobrazovaný název pro tento server",
@@ -373,6 +377,7 @@
   "gallery.downloading": "Stahování...",
   "gallery.footer.channel_name": "Sdíleno v {channelName}",
   "gallery.image_saved": "Obrázek uložen",
+  "gallery.only_pdf": "Pro bezpečný náhled jsou podporovány pouze soubory ve formátu PDF.",
   "gallery.open_file": "Otevřít soubor",
   "gallery.opening": "Otvírání...",
   "gallery.preparing": "Připravuje se...",
@@ -440,7 +445,7 @@
   "invite.summary.sent": "Vaše {sentCount, plural, one {pozvánka byla} other {pozvánky byly}} odeslána",
   "invite.summary.smtp_failure": "SMTP není nakonfigurován v systémové konzoli",
   "invite.summary.some_not_sent": "{notSentCount, plural, one {Pozvání nebylo} other {Některá pozvání nebyla}} odeslána",
-  "invite.summary.try_again": "Zkusit znovu",
+  "invite.summary.try_again": "Zkuste znovu",
   "invite.title": "Pozvat",
   "invite.title.summary": "Souhrn pozvánek",
   "invite_people_to_team.message": "Zde je odkaz pro spolupráci a komunikaci s námi na Mattermostu.",
@@ -464,6 +469,7 @@
   "load_channels_error.title": "Nepodařilo se načíst {teamDisplayName}",
   "load_teams_error.message": "Došlo k problému při načítání obsahu pro tento server.",
   "load_teams_error.title": "Nepodařilo se načíst {serverName}",
+  "loading_error.retry": "Opakovat",
   "login.email": "E-mail",
   "login.forgot": "Zapomněli jste heslo?",
   "login.invalid_credentials": "Kombinace e-mailu a hesla je nesprávná",
@@ -492,6 +498,7 @@
   "mobile.account.settings.save": "Uložit",
   "mobile.acknowledgements.header": "Potvrzení přijetí",
   "mobile.action_menu.select": "Vyberte možnost",
+  "mobile.action_menu.select_multiple": "Zvolte jednu nebo více možností",
   "mobile.add_team.create_team": "Vytvořit nový tým",
   "mobile.add_team.join_team": "Připojit se k jinému týmu",
   "mobile.android.back_handler_exit": "Opětovným stiskem zpět ukončit",
@@ -648,6 +655,8 @@
   "mobile.display_settings.timezone": "Časové pásmo",
   "mobile.document_preview.failed_description": "Nastala chyba při otvírání dokumentu. Prosím, ujistěte se, že máte nainstalován prohlížeč pro {fileType} a zkuste to znovu.\n",
   "mobile.document_preview.failed_title": "Otevření dokumentu se nezdařilo",
+  "mobile.document_preview.only_pdf_description": "Lze zobrazit pouze soubory ve formátu PDF. Stahování není na tomto serveru povoleno.\n",
+  "mobile.document_preview.only_pdf_title": "Náhled není podporován",
   "mobile.downloader.disabled_description": "Stahování souborů je na tomto serveru zakázáno. Pro více informací kontaktujte svého systémového administrátora.\n",
   "mobile.downloader.disabled_title": "Stahování zakázáno",
   "mobile.downloader.failed_description": "Došlo k chybě při stahování souboru. Prosím zkontrolujte vaše internetové připojení a zkuste to znovu.\n",
@@ -756,13 +765,22 @@
   "mobile.open_dm.error": "Nepodařilo se otevřít přímou zprávu s {displayName}. Prosím zkontrolujte vaše připojení a zkuste to znovu.",
   "mobile.open_gm.error": "Nemohli jsme otevřít skupinovou zprávu s těmito uživateli. Prosím zkontrolujte vaše připojení a zkuste to znovu.",
   "mobile.participants.header": "Účastníci Vlákna",
+  "mobile.pdf_viewer.enter_password": "Zadejte prosím heslo pro jeho odemknutí.",
+  "mobile.pdf_viewer.link_disabled_detail": "Otevírání odkazů v tomto PDF není povoleno podle bezpečnostního nastavení vaší organizace.",
+  "mobile.pdf_viewer.link_disabled_title": "Odkaz deaktivován",
+  "mobile.pdf_viewer.load_failed": "Soubor PDF nelze otevřít.",
+  "mobile.pdf_viewer.password": "Heslo",
+  "mobile.pdf_viewer.password_failed": "Nesprávné heslo. Zbývá vám {count} {count, plural, one {pokus} other {pokusů}}.",
+  "mobile.pdf_viewer.password_limit_reached": "Zadali jste nesprávné heslo příliš mnohokrát.",
+  "mobile.pdf_viewer.password_required": "Tento dokument je chráněn heslem.",
+  "mobile.pdf_viewer.unlock": "Odemknout",
   "mobile.permission_denied_dismiss": "Nepovolit",
   "mobile.permission_denied_retry": "Nastavení",
   "mobile.post.cancel": "Zrušit",
   "mobile.post.delete_question": "Opravdu chcete smazat tento příspěvek?",
   "mobile.post.delete_title": "Smazat příspěvek",
   "mobile.post.failed_delete": "Smazat zprávu",
-  "mobile.post.failed_retry": "Zkusit znovu",
+  "mobile.post.failed_retry": "Znovu zkusit",
   "mobile.post_info.add_reaction": "Přidat Reakci",
   "mobile.post_info.copy_text": "Kopírovat Text",
   "mobile.post_info.mark_unread": "Označit jako Nepřečtené",
@@ -1107,6 +1125,7 @@
   "screens.channel_info.gm": "Informace o skupinové zprávě",
   "search_bar.search": "Vyhledat",
   "search_bar.search.placeholder": "Vyhledat časové pásmo",
+  "select_field.optional": "{labelName} (volitelné)",
   "select_team.description": "Ještě nejste členem žádného týmu. Vyberte jeden z níže uvedených, abyste mohli začít.",
   "select_team.no_team.description": "Chcete-li se připojit k týmu, požádejte správce týmu o pozvání nebo si vytvořte vlastní tým. Také se můžete podívat do své e-mailové schránky na pozvání.",
   "select_team.no_team.title": "Žádné týmy, ke kterým byste se mohli připojit, nejsou k dispozici",
@@ -1281,7 +1300,10 @@
   "user.settings.general.username": "Uživatelské jméno",
   "user.settings.notifications.email_threads.description": "Upozornit mě na všechny odpovědi na vlákna, která sleduji",
   "user.tutorial.long_press": "Dlouze stiskněte položku, abyste zobrazili profil uživatele",
+  "user_profile.channel_admin": "Správce kanálu",
   "user_profile.custom_status": "Vlastní Status",
+  "user_profile.system_admin": "Systémový administrátor",
+  "user_profile.team_admin": "Správce týmu",
   "user_settings.notifications.test_notification.body": "Neobdržíte upozornění? Začněte odesláním testovacího upozornění na všechna vaše zařízení, abyste zkontrolovali, zda fungují podle očekávání. Pokud problémy přetrvávají, prozkoumejte možnosti jejich řešení pomocí kroků pro odstraňování problémů.",
   "user_settings.notifications.test_notification.go_to_docs": "Dokumentace pro odstraňování problémů",
   "user_settings.notifications.test_notification.send_button.error": "Chyba při zasílání zkušebního upozornění",
diff --git a/assets/base/i18n/de.json b/assets/base/i18n/de.json
index e4114a5e9..62fc73d0c 100644
--- a/assets/base/i18n/de.json
+++ b/assets/base/i18n/de.json
@@ -328,6 +328,10 @@
   "drafts.empty.title": "Aktuell keine Entwürfe",
   "drafts_tab.title.drafts": "Entwürfe",
   "drafts_tab.title.scheduled": "Geplant",
+  "edit_post.delete_file.cancel": "Abbrechen",
+  "edit_post.delete_file.confirm": "Löschen",
+  "edit_post.delete_file.confirmation": "Bist du sicher, dass du {filename} löschen möchtest?",
+  "edit_post.delete_file.title": "Anhang löschen",
   "edit_post.editPost": "Nachricht bearbeiten...",
   "edit_post.save": "Speichern",
   "edit_server.description": "Gib einen Anzeigenamen für diesen Server an",
diff --git a/assets/base/i18n/en_AU.json b/assets/base/i18n/en_AU.json
index a7b80aabf..c4db06031 100644
--- a/assets/base/i18n/en_AU.json
+++ b/assets/base/i18n/en_AU.json
@@ -98,6 +98,8 @@
   "camera_type.photo.option": "Capture Photo",
   "camera_type.video.option": "Record Video",
   "center_panel.archived.closeChannel": "Close Channel",
+  "channel.abac_policy_enforced.description": "Only people who match the specified access rules can be selected and added to this channel.",
+  "channel.abac_policy_enforced.title": "Channel access is restricted by user attributes",
   "channel.banner.bottom_sheet.title": "Channel Banner",
   "channel_add_members.add_members.button": "Add Members",
   "channel_bookmark.add.detail_title": "Title",
@@ -326,6 +328,10 @@
   "drafts.empty.title": "No drafts at the moment",
   "drafts_tab.title.drafts": "Drafts",
   "drafts_tab.title.scheduled": "Scheduled",
+  "edit_post.delete_file.cancel": "Cancel",
+  "edit_post.delete_file.confirm": "Delete",
+  "edit_post.delete_file.confirmation": "Are you sure you want to remove {filename}?",
+  "edit_post.delete_file.title": "Delete attachment",
   "edit_post.editPost": "Edit the post...",
   "edit_post.save": "Save",
   "edit_server.description": "Specify a display name for this server",
@@ -371,6 +377,7 @@
   "gallery.downloading": "Downloading...",
   "gallery.footer.channel_name": "Shared in {channelName}",
   "gallery.image_saved": "Image saved",
+  "gallery.only_pdf": "Only PDF files are supported for secure file preview.",
   "gallery.open_file": "Open file",
   "gallery.opening": "Opening...",
   "gallery.preparing": "Preparing...",
@@ -462,6 +469,7 @@
   "load_channels_error.title": "Couldn't load {teamDisplayName}",
   "load_teams_error.message": "There was a problem loading content for this server.",
   "load_teams_error.title": "Couldn't load {serverName}",
+  "loading_error.retry": "Retry",
   "login.email": "Email",
   "login.forgot": "Forgot your password?",
   "login.invalid_credentials": "The email and password combination is incorrect",
@@ -490,6 +498,7 @@
   "mobile.account.settings.save": "Save",
   "mobile.acknowledgements.header": "Acknowledgements",
   "mobile.action_menu.select": "Select an option",
+  "mobile.action_menu.select_multiple": "Select one or more options",
   "mobile.add_team.create_team": "Create a new team",
   "mobile.add_team.join_team": "Join another team",
   "mobile.android.back_handler_exit": "Press back again to exit",
@@ -646,6 +655,8 @@
   "mobile.display_settings.timezone": "Timezone",
   "mobile.document_preview.failed_description": "An error occurred while opening the document. Please make sure you have a {fileType} viewer installed and try again.\n",
   "mobile.document_preview.failed_title": "Open Document failed",
+  "mobile.document_preview.only_pdf_description": "Only PDF files can be previewed. Downloads are not allowed on this server.\n",
+  "mobile.document_preview.only_pdf_title": "Preview not supported",
   "mobile.downloader.disabled_description": "File downloads are disabled on this server. Please contact your System Admin for more details.\n",
   "mobile.downloader.disabled_title": "Download disabled",
   "mobile.downloader.failed_description": "An error occurred while downloading the file. Please check your internet connection and try again.\n",
@@ -728,6 +739,7 @@
   "mobile.markdown.code.plusMoreLines": "+{count, number} more {count, plural, one {line} other {lines}}",
   "mobile.markdown.copy_header": "Copy header text",
   "mobile.markdown.image.too_large": "Image exceeds max dimensions of {maxWidth} by {maxHeight}:",
+  "mobile.markdown.link.copy_email": "Copy Email Address",
   "mobile.markdown.link.copy_url": "Copy URL",
   "mobile.mention.copy_mention": "Copy Mention",
   "mobile.message_length.message": "Your current message is too long. Current character count: {count}/{max}",
@@ -753,6 +765,15 @@
   "mobile.open_dm.error": "A direct message with {displayName} couldn't be opened. Please check your connection and try again.",
   "mobile.open_gm.error": "A group message with those users could not be opened. Please check your connection and try again.",
   "mobile.participants.header": "Thread Participants",
+  "mobile.pdf_viewer.enter_password": "Please enter the password to unlock it.",
+  "mobile.pdf_viewer.link_disabled_detail": "Opening links inside this PDF is not allowed by your organisation's security settings.",
+  "mobile.pdf_viewer.link_disabled_title": "Link Disabled",
+  "mobile.pdf_viewer.load_failed": "Unable to open the PDF file.",
+  "mobile.pdf_viewer.password": "Password",
+  "mobile.pdf_viewer.password_failed": "Incorrect password. You have {count} {count, plural, one {attempt} other {attempts}} remaining.",
+  "mobile.pdf_viewer.password_limit_reached": "You’ve entered the wrong password too many times.",
+  "mobile.pdf_viewer.password_required": "This document is password protected.",
+  "mobile.pdf_viewer.unlock": "Unlock",
   "mobile.permission_denied_dismiss": "Don't Allow",
   "mobile.permission_denied_retry": "Settings",
   "mobile.post.cancel": "Cancel",
@@ -1104,6 +1125,7 @@
   "screens.channel_info.gm": "Group message info",
   "search_bar.search": "Search",
   "search_bar.search.placeholder": "Search timezone",
+  "select_field.optional": "{labelName} (optional)",
   "select_team.description": "You are not yet a member of any teams. Select one below to get started.",
   "select_team.no_team.description": "To join a team, ask a team admin for an invitation, or create your own team. You may also want to check your email inbox for an invitation.",
   "select_team.no_team.title": "No teams are available to join",
@@ -1278,7 +1300,10 @@
   "user.settings.general.username": "Username",
   "user.settings.notifications.email_threads.description": "Notify me about all replies to threads I'm following",
   "user.tutorial.long_press": "Long-press on an item to view a user's profile",
+  "user_profile.channel_admin": "Channel Admin",
   "user_profile.custom_status": "Custom Status",
+  "user_profile.system_admin": "System Admin",
+  "user_profile.team_admin": "Team Admin",
   "user_settings.notifications.test_notification.body": "Not receiving notifications? Start by sending a test notification to all your devices to check if they’re working as expected. If issues persist, explore ways to solve them with troubleshooting steps.",
   "user_settings.notifications.test_notification.go_to_docs": "Troubleshooting docs",
   "user_settings.notifications.test_notification.send_button.error": "Error sending test notification",
diff --git a/assets/base/i18n/nb_NO.json b/assets/base/i18n/nb_NO.json
index 135d39650..195351013 100644
--- a/assets/base/i18n/nb_NO.json
+++ b/assets/base/i18n/nb_NO.json
@@ -1006,7 +1006,7 @@
   "post_info.edit": "Rediger",
   "post_info.guest": "Gjest",
   "post_info.system": "System",
-  "post_message_view.edited": "(redigert)",
+  "post_message_view.edited": "Redigert",
   "post_priority.button.acknowledge": "Anerkjenne",
   "post_priority.label.important": "VIKTIG",
   "post_priority.label.urgent": "HASTER",
diff --git a/assets/base/i18n/sr.json b/assets/base/i18n/sr.json
index dcb28bee7..6f735baff 100644
--- a/assets/base/i18n/sr.json
+++ b/assets/base/i18n/sr.json
@@ -1,40 +1,40 @@
 {
-    "posts_view.newMsg": "Нове поруке",
-    "post_message_view.edited": "(измењено)",
-    "mobile.post_pre_header.pinned": "Закачено",
-    "post_body.deleted": "(порука обрисана)",
-    "msg_typing.isTyping": "{user} пише...",
-    "suggestion.search.direct": "Директне поруке",
-    "mobile.server_url.invalid_format": "УРЛ мора почињати са http:// или https://",
-    "mobile.post.failed_delete": "Обриши поруку",
-    "mobile.post.delete_title": "Обриши објаву",
-    "mobile.post.delete_question": "Да ли сте сигурни да желите да обришете ову објаву?",
-    "mobile.open_gm.error": "Нисмо могли да покренемо групну поруку са овим саговорницима. Проверите вашу везу и пробајте поново.",
-    "mobile.open_dm.error": "Нисмо могли да покренемо директну поруку са саговорником {displayName}. Проверите вашу везу и пробајте поново.",
-    "mobile.managed.exit": "Изађи",
-    "mobile.join_channel.error": "Нисмо могли да приступимо каналу {displayName}. Проверите вашу везу и пробајте поново.",
-    "mobile.edit_post.title": "Уређујем поруку",
-    "edit_post.editPost": "Уреди објаву...",
-    "search_bar.search": "Претрага",
-    "suggestion.search.private": "Приватни канали",
-    "channel_modal.name": "Име",
-    "about.teamEditiont0": "Тимско издање",
-    "about.teamEditionSt": "Сва тимска комуникација на једном, приступачном месту које се може лако претраживати.",
-    "about.teamEditionLearn": "Придружи се Матермост заједници на ",
-    "about.hashee": "Хеш Пр. градње:",
-    "about.hash": "Хеш градње:",
-    "about.enterpriseEditionSt": "Савремени вид комуникације иза вашег заштитног зида.",
-    "about.enterpriseEditionLearn": "Више о предузетничком издању на ",
-    "about.date": "Датум градње:",
-    "mobile.post_info.pin": "Закачи на канал",
-    "apps.error.form.refresh": "Дошло је до грешке приликом прикупљања података из одабраних поља. Контактирајте развојни тим. Детаљи: {details}",
-    "apps.error.form.no_form": "`form` није дефинисана.",
-    "apps.error.command.unknown_user": "Непознат корисник за поље `{fieldName}`: `{option}`.",
-    "apps.error.command.unknown_option": "Непозната опција за поље `{fieldName}`: `{option}`.",
-    "apps.error.command.unknown_channel": "Непознат канал за поље `{fieldName}`: `{option}`.",
-    "apps.error.command.field_missing": "Недостају тражена поља: `{fieldName}`.",
-    "apps.error": "Грешка: {error}",
-    "api.channel.add_member.added": "(addedUsername) додат на канал од стране {username}.",
-    "about.teamEditiont1": "ентерпрајз издање",
-    "about.enterpriseEditione1": "Ентерпрајз издање"
+  "about.date": "Датум градње:",
+  "about.enterpriseEditionLearn": "Више о предузетничком издању на ",
+  "about.enterpriseEditionSt": "Савремени вид комуникације иза вашег заштитног зида.",
+  "about.enterpriseEditione1": "Ентерпрајз издање",
+  "about.hash": "Хеш градње:",
+  "about.hashee": "Хеш Пр. градње:",
+  "about.teamEditionLearn": "Придружи се Матермост заједници на ",
+  "about.teamEditionSt": "Сва тимска комуникација на једном, приступачном месту које се може лако претраживати.",
+  "about.teamEditiont0": "Тимско издање",
+  "about.teamEditiont1": "ентерпрајз издање",
+  "api.channel.add_member.added": "(addedUsername) додат на канал од стране {username}.",
+  "apps.error": "Грешка: {error}",
+  "apps.error.command.field_missing": "Недостају тражена поља: `{fieldName}`.",
+  "apps.error.command.unknown_channel": "Непознат канал за поље `{fieldName}`: `{option}`.",
+  "apps.error.command.unknown_option": "Непозната опција за поље `{fieldName}`: `{option}`.",
+  "apps.error.command.unknown_user": "Непознат корисник за поље `{fieldName}`: `{option}`.",
+  "apps.error.form.no_form": "`form` није дефинисана.",
+  "apps.error.form.refresh": "Дошло је до грешке приликом прикупљања података из одабраних поља. Контактирајте развојни тим. Детаљи: {details}",
+  "channel_modal.name": "Име",
+  "edit_post.editPost": "Уреди објаву...",
+  "mobile.edit_post.title": "Уређујем поруку",
+  "mobile.join_channel.error": "Нисмо могли да приступимо каналу {displayName}. Проверите вашу везу и пробајте поново.",
+  "mobile.managed.exit": "Изађи",
+  "mobile.open_dm.error": "Нисмо могли да покренемо директну поруку са саговорником {displayName}. Проверите вашу везу и пробајте поново.",
+  "mobile.open_gm.error": "Нисмо могли да покренемо групну поруку са овим саговорницима. Проверите вашу везу и пробајте поново.",
+  "mobile.post.delete_question": "Да ли сте сигурни да желите да обришете ову објаву?",
+  "mobile.post.delete_title": "Обриши објаву",
+  "mobile.post.failed_delete": "Обриши поруку",
+  "mobile.post_info.pin": "Закачи на канал",
+  "mobile.post_pre_header.pinned": "Закачено",
+  "mobile.server_url.invalid_format": "УРЛ мора почињати са http:// или https://",
+  "msg_typing.isTyping": "{user} пише...",
+  "post_body.deleted": "(порука обрисана)",
+  "post_message_view.edited": "(измењено)",
+  "posts_view.newMsg": "Нове поруке",
+  "search_bar.search": "Претрага",
+  "suggestion.search.direct": "Директне поруке",
+  "suggestion.search.private": "Приватни канали"
 }
diff --git a/assets/base/i18n/zh-CN.json b/assets/base/i18n/zh-CN.json
index 3715e33ce..c452e8a99 100644
--- a/assets/base/i18n/zh-CN.json
+++ b/assets/base/i18n/zh-CN.json
@@ -328,6 +328,10 @@
   "drafts.empty.title": "目前没有草稿",
   "drafts_tab.title.drafts": "草稿",
   "drafts_tab.title.scheduled": "已安排",
+  "edit_post.delete_file.cancel": "取消",
+  "edit_post.delete_file.confirm": "删除",
+  "edit_post.delete_file.confirmation": "你确定要移除 {filename} 吗？",
+  "edit_post.delete_file.title": "删除附件",
   "edit_post.editPost": "编辑信息…",
   "edit_post.save": "保存",
   "edit_server.description": "为此服务器指定一个显示名称",
@@ -373,6 +377,7 @@
   "gallery.downloading": "下载中…",
   "gallery.footer.channel_name": "在 {channelName} 中共享",
   "gallery.image_saved": "图片已保存",
+  "gallery.only_pdf": "仅支持预览 PDF 格式的安全文件。",
   "gallery.open_file": "打开文件",
   "gallery.opening": "打开中…",
   "gallery.preparing": "准备中…",
@@ -464,6 +469,7 @@
   "load_channels_error.title": "无法载入{teamDisplayName}",
   "load_teams_error.message": "在这个服务上有内容载入错误。",
   "load_teams_error.title": "无法载入{serverName}",
+  "loading_error.retry": "重试",
   "login.email": "邮箱",
   "login.forgot": "忘记密码？",
   "login.invalid_credentials": "邮件和密码的组合不正确",
@@ -492,6 +498,7 @@
   "mobile.account.settings.save": "保存",
   "mobile.acknowledgements.header": "感谢",
   "mobile.action_menu.select": "选择选项",
+  "mobile.action_menu.select_multiple": "选择一个或多个选项",
   "mobile.add_team.create_team": "创建一个新团队",
   "mobile.add_team.join_team": "加入另外的团队",
   "mobile.android.back_handler_exit": "再次点击返回以退出",
@@ -648,6 +655,8 @@
   "mobile.display_settings.timezone": "时区",
   "mobile.document_preview.failed_description": "打开文档时遇到错误。请确定您已安装 {fileType} 查看器后再重试。\n",
   "mobile.document_preview.failed_title": "打开文档失败",
+  "mobile.document_preview.only_pdf_description": "仅支持预览 PDF 文件。此服务器不允许下载。\n",
+  "mobile.document_preview.only_pdf_title": "不支持预览",
   "mobile.downloader.disabled_description": "文件下载在本服务器已停用。详情请联系您的系统管理员。\n",
   "mobile.downloader.disabled_title": "下载已停用",
   "mobile.downloader.failed_description": "下载文件时遇到错误。请检查您的网络连接后重试。\n",
@@ -756,6 +765,15 @@
   "mobile.open_dm.error": "我们无法打开私信 {displayName}。请检查您的网络连接再尝试。",
   "mobile.open_gm.error": "我们无法打开和这些用户的团体消息。请检查您的网络连接再尝试。",
   "mobile.participants.header": "话题参与者",
+  "mobile.pdf_viewer.enter_password": "请输入密码以解锁。",
+  "mobile.pdf_viewer.link_disabled_detail": "根据您组织的安全设置，不允许打开此 PDF 中的链接。",
+  "mobile.pdf_viewer.link_disabled_title": "链接已禁用",
+  "mobile.pdf_viewer.load_failed": "无法打开 PDF 文件。",
+  "mobile.pdf_viewer.password": "密码",
+  "mobile.pdf_viewer.password_failed": "密码错误。您还剩 {count} {count, plural, one {次} other {次}}尝试机会。",
+  "mobile.pdf_viewer.password_limit_reached": "您输入错误密码的次数过多。",
+  "mobile.pdf_viewer.password_required": "此文档受密码保护。",
+  "mobile.pdf_viewer.unlock": "解锁",
   "mobile.permission_denied_dismiss": "不允许",
   "mobile.permission_denied_retry": "设定",
   "mobile.post.cancel": "取消",
@@ -1107,6 +1125,7 @@
   "screens.channel_info.gm": "群聊信息",
   "search_bar.search": "搜索",
   "search_bar.search.placeholder": "搜索时区",
+  "select_field.optional": "{labelName}（可选）",
   "select_team.description": "您不是任何团队的成员。从下面选择一个团队继续。",
   "select_team.no_team.description": "要加入一个团队，联系团队管理员发出邀请或者创建您自己的团队。您可能需要检查您的邮件收件箱是否收到邀请。",
   "select_team.no_team.title": "没有可用来加入的团队",
@@ -1281,7 +1300,10 @@
   "user.settings.general.username": "用户名",
   "user.settings.notifications.email_threads.description": "通知我有关我关注的主题的所有回复",
   "user.tutorial.long_press": "长按项目查看用户的介绍",
+  "user_profile.channel_admin": "频道管理员",
   "user_profile.custom_status": "自定义状态",
+  "user_profile.system_admin": "系统管理员",
+  "user_profile.team_admin": "团队管理员",
   "user_settings.notifications.test_notification.body": "无法收到通知？先向您的所有设备发送一条测试通知，以检查是否符合预期。如果仍有问题，通过故障排除步骤寻找解决的方法。",
   "user_settings.notifications.test_notification.go_to_docs": "故障排除文档",
   "user_settings.notifications.test_notification.send_button.error": "发送测试通知时出错",