diff --git a/Telegram/Resources/lang.strings b/Telegram/Resources/lang.strings
index 67aaae7389..8476efef96 100644
--- a/Telegram/Resources/lang.strings
+++ b/Telegram/Resources/lang.strings
@@ -121,7 +121,7 @@ Copyright (c) 2014 John Preston, https://desktop.telegram.org
 "lng_bad_name" = "Please enter your first and last name.";
 "lng_bad_photo" = "Bad image selected.";
 
-"lng_bad_image_for_photo" = "This image can't be sent that way.\nWould you like to send it as a document?";
+"lng_bad_image_for_photo" = "This image can't be sent that way.\nWould you like to send it as a file?";
 
 "lng_signup_title" = "Information and photo";
 "lng_signup_desc" = "Please enter your name and\nupload a photo.";
@@ -153,8 +153,7 @@ Copyright (c) 2014 John Preston, https://desktop.telegram.org
 "lng_settings_section_contact_info" = "Contact info";
 "lng_settings_phone_number" = "Phone number:";
 "lng_settings_username" = "Username:";
-"lng_settings_choose_username" = "choose username";
-"lng_settings_change_username" = "Change";
+"lng_settings_choose_username" = "Choose username";
 
 "lng_settings_section_notify" = "Notifications";
 "lng_settings_desktop_notify" = "Desktop notifications";
@@ -278,8 +277,8 @@ Copyright (c) 2014 John Preston, https://desktop.telegram.org
 "lng_profile_photos_header" = "Photos overview";
 "lng_profile_videos" = "{count:_not_used_|# video file|# video files} »";
 "lng_profile_videos_header" = "Video files overview";
-"lng_profile_documents" = "{count:_not_used_|# document|# documents} »";
-"lng_profile_documents_header" = "Documents overview";
+"lng_profile_files" = "{count:_not_used_|# file|# files} »";
+"lng_profile_files_header" = "Files overview";
 "lng_profile_audios" = "{count:_not_used_|# voice message|# voice messages} »";
 "lng_profile_audios_header" = "Voice messages overview";
 "lng_profile_show_all_types" = "Show all types";
@@ -313,13 +312,13 @@ Copyright (c) 2014 John Preston, https://desktop.telegram.org
 "lng_forwarded_from" = "Forwarded from";
 
 "lng_attach_failed" = "Failed";
-"lng_attach_file" = "Document";
+"lng_attach_file" = "File";
 "lng_attach_photo" = "Photo";
 
 "lng_media_type" = "Media type";
 "lng_media_type_photos" = "Photos";
 "lng_media_type_videos" = "Video files";
-"lng_media_type_documents" = "Documents";
+"lng_media_type_files" = "Files";
 "lng_media_type_audios" = "Voice messages";
 
 "lng_media_open_with" = "Open With";
@@ -332,7 +331,7 @@ Copyright (c) 2014 John Preston, https://desktop.telegram.org
 "lng_in_dlg_video" = "Video";
 "lng_in_dlg_contact" = "Contact";
 "lng_in_dlg_audio" = "Audio";
-"lng_in_dlg_document" = "Document";
+"lng_in_dlg_file" = "File";
 "lng_in_dlg_sticker" = "Sticker";
 "lng_in_dlg_sticker_emoji" = "{emoji} (sticker)";
 
@@ -353,7 +352,7 @@ Copyright (c) 2014 John Preston, https://desktop.telegram.org
 "lng_save_photo" = "Save image";
 "lng_save_video" = "Save video";
 "lng_save_audio" = "Save audio";
-"lng_save_document" = "Save document";
+"lng_save_file" = "Save file";
 "lng_save_downloaded" = "{ready} / {total} {mb}";
 "lng_duration_and_size" = "{duration}, {size}";
 "lng_choose_images" = "Choose images";
@@ -377,8 +376,8 @@ Copyright (c) 2014 John Preston, https://desktop.telegram.org
 "lng_context_save_video" = "Save Video As..";
 "lng_context_open_audio" = "Open Audio";
 "lng_context_save_audio" = "Save Audio As..";
-"lng_context_open_document" = "Open File";
-"lng_context_save_document" = "Save File As..";
+"lng_context_open_file" = "Open File";
+"lng_context_save_file" = "Save File As..";
 "lng_context_forward_file" = "Forward File";
 "lng_context_delete_file" = "Delete File";
 "lng_context_close_file" = "Close File";
@@ -424,7 +423,7 @@ Copyright (c) 2014 John Preston, https://desktop.telegram.org
 
 "lng_drag_to_send_quick" = "to send them in a quick way";
 "lng_drag_to_send_no_compression" = "to send them without compression";
-"lng_drag_to_send_documents" = "to send them as documents";
+"lng_drag_to_send_files" = "to send them as files";
 
 "lng_selected_clear" = "Cancel";
 "lng_selected_delete" = "Delete";
@@ -449,7 +448,7 @@ Copyright (c) 2014 John Preston, https://desktop.telegram.org
 "lng_mediaview_group_photo" = "Group Photo";
 "lng_mediaview_profile_photo" = "Profile Photo";
 "lng_mediaview_n_of_count" = "Photo {n} of {count}";
-"lng_mediaview_doc_image" = "Document";
+"lng_mediaview_doc_image" = "File";
 "lng_mediaview_today" = "today at {time}";
 "lng_mediaview_yesterday" = "yesterday at {time}";
 "lng_mediaview_date_time" = "{date} at {time}";
@@ -458,9 +457,9 @@ Copyright (c) 2014 John Preston, https://desktop.telegram.org
 
 "lng_new_authorization" = "{name},\nWe detected a login into your account from a new device on {day}, {date} at {time}\n\nDevice: {device}\nLocation: {location}\n\nIf this wasn't you, you can go to Settings — Terminate other sessions.\n\nThanks,\nThe Telegram Team";
 
-"lng_new_version_minor" = "Telegram Desktop was updated to version {version}\n\n — Bug fixes and other minor improvements\n\nFull version history is available here:\n{link}";
-
-"lng_new_version7009" = "Telegram Desktop was updated to version {version}\n\n — Added Korean language\n — Quick «open with» menu on Windows and OS X\n\nFull version history is available here:\n{link}";
+"lng_new_version_wrap" = "Telegram Desktop was updated to version {version}\n\n{changes}\n\nFull version history is available here:\n{link}";
+"lng_new_version_minor" = "— Bug fixes and other minor improvements";
+"lng_new_version7013" = "— You can now change the chat background";
 "lng_new_version7006_appstore" = "Telegram Desktop was updated to version {version}\n\n — Stickers support\n — Local caching for voice messages\n — Added new languages\n\nFull version history is available here:\n{link}";
 
 // Wnd specific
diff --git a/Telegram/Resources/style.txt b/Telegram/Resources/style.txt
index 03ed38905c..476048bd2a 100644
--- a/Telegram/Resources/style.txt
+++ b/Telegram/Resources/style.txt
@@ -497,19 +497,20 @@ introErrLabel: flatLabel(labelDefFlat) {
 setWidth: 356px;
 setTop: 26px;
 setNameLeft: 3px;
-setNameTop: 1px;
-setNameFont: font(22px);
-setStatusTop: 39px;
-setStatusLeft: 1px;
-setStatusFont: font(16px);
+setNameTop: 5px;
+setNameFont: font(18px);
+setStatusTop: 35px;
+setStatusLeft: 3px;
+setStatusFont: font(14px);
 setPhotoSize: 120px;
-setHeaderFont: font(20px);
+setHeaderFont: font(17px);
 setHeaderColor: black;
-setHeaderSkip: 59px;
+setHeaderSkip: 60px;
 setHeaderLeft: -1px;
-setHeaderTop: 22px;
+setHeaderTop: 26px;
 setLittleSkip: 9px;
 setSectionSkip: 25px;
+setContactInfoLeft: 150px;
 setVersionHeight: 41px;
 setVersionLeft: 36px;
 setVersionTop: 3px;
diff --git a/Telegram/SourceFiles/application.cpp b/Telegram/SourceFiles/application.cpp
index 2c8d8c1180..0adc0915cb 100644
--- a/Telegram/SourceFiles/application.cpp
+++ b/Telegram/SourceFiles/application.cpp
@@ -511,8 +511,8 @@ void Application::startUpdateCheck(bool forceWait) {
 	updateCheckTimer.stop();
 	if (updateRequestId || updateThread || updateReply || !cAutoUpdate()) return;
 	
-	int32 updateInSecs = cLastUpdateCheck() + 3600 + (rand() % 3600) - unixtime();
-	bool sendRequest = (updateInSecs <= 0 || updateInSecs > 7200);
+	int32 updateInSecs = cLastUpdateCheck() + UpdateDelayConstPart + (rand() % UpdateDelayRandPart) - unixtime();
+	bool sendRequest = (updateInSecs <= 0 || updateInSecs > (UpdateDelayConstPart + UpdateDelayRandPart));
 	if (!sendRequest && !forceWait) {
 		QDir updates(cWorkingDir() + "tupdates");
 		if (updates.exists()) {
@@ -689,7 +689,6 @@ void Application::startApp() {
 	App::initMedia();
 
 	DEBUG_LOG(("Application Info: showing."));
-
 	if (MTP::authedId()) {
 		window->setupMain(false);
 	} else {
@@ -706,17 +705,15 @@ void Application::startApp() {
 	if (Local::oldMapVersion() < AppVersion) {
 		psRegisterCustomScheme();
 		if (Local::oldMapVersion()) {
+			QString versionFeatures;
 			if (DevChannel && Local::oldMapVersion() < 7012) {
-				QString versionFeatures(qsl("Telegram Desktop was updated to version {version}\n\n{changes}\n\nFull version history is available here:\n{link}"));
-				versionFeatures = versionFeatures.replace(qsl("{changes}"), QString::fromUtf8(" \xe2\x80\x94 Chat background settings translated"));
-				versionFeatures = versionFeatures.replace(qsl("{version}"), QString::fromStdWString(AppVersionStr) + qsl(" dev"));
-				versionFeatures = versionFeatures.replace(qsl("{link}"), qsl("https://desktop.telegram.org/#changelog"));
+				versionFeatures = QString::fromUtf8("\xe2\x80\x94 Chat background settings translated");
+			} else if (!DevChannel && Local::oldMapVersion() < 7013) {
+				versionFeatures = lang(lng_new_version7013).trimmed();
+			}
+			if (!versionFeatures.isEmpty()) {
+				versionFeatures = lng_new_version_wrap(lt_version, QString::fromStdWString(AppVersionStr), lt_changes, versionFeatures, lt_link, qsl("https://desktop.telegram.org/#changelog"));
 				window->serviceNotification(versionFeatures);
-			} else if (!DevChannel && Local::oldMapVersion() < 7010) {
-				QString versionFeatures(lng_new_version_minor(lt_version, QString::fromStdWString(AppVersionStr), lt_link, qsl("https://desktop.telegram.org/#changelog")));
-				if (!versionFeatures.isEmpty()) {
-					window->serviceNotification(versionFeatures);
-				}
 			}
 		}
 	}
diff --git a/Telegram/SourceFiles/config.h b/Telegram/SourceFiles/config.h
index ece2255cc0..9095934f4c 100644
--- a/Telegram/SourceFiles/config.h
+++ b/Telegram/SourceFiles/config.h
@@ -120,6 +120,9 @@ enum {
 
 	CacheBackgroundTimeout = 3000, // cache background scaled image after 3s
 	BackgroundsInRow = 3,
+
+	UpdateDelayConstPart = 8 * 3600, // 8 hour min time between update check requests
+	UpdateDelayRandPart = 8 * 3600, // 8 hour max - min time between update check requests
 };
 
 inline bool isServiceUser(uint64 id) {
diff --git a/Telegram/SourceFiles/dropdown.cpp b/Telegram/SourceFiles/dropdown.cpp
index 5ca90f168f..d5cc525f0c 100644
--- a/Telegram/SourceFiles/dropdown.cpp
+++ b/Telegram/SourceFiles/dropdown.cpp
@@ -23,12 +23,24 @@ Copyright (c) 2014 John Preston, https://desktop.telegram.org
 #include "localstorage.h"
 #include "lang.h"
 
+#include "window.h"
+
 Dropdown::Dropdown(QWidget *parent) : TWidget(parent),
 	_hiding(false), a_opacity(0), _shadow(st::dropdownShadow) {
 	resetButtons();
 
 	_hideTimer.setSingleShot(true);
 	connect(&_hideTimer, SIGNAL(timeout()), this, SLOT(hideStart()));
+
+	if (cPlatform() == dbipMac) {
+		connect(App::wnd()->windowHandle(), SIGNAL(activeChanged()), this, SLOT(onWndActiveChanged()));
+	}
+}
+
+void Dropdown::onWndActiveChanged() {
+	if (!App::wnd()->windowHandle()->isActive() && !isHidden()) {
+		leaveEvent(0);
+	}
 }
 
 IconedButton *Dropdown::addButton(IconedButton *button) {
@@ -684,6 +696,16 @@ _scroll(this, st::emojiScroll), _inner() {
 
 	connect(&_inner, SIGNAL(emojiSelected(EmojiPtr)), this, SIGNAL(emojiSelected(EmojiPtr)));
 	connect(&_inner, SIGNAL(stickerSelected(DocumentData*)), this, SIGNAL(stickerSelected(DocumentData*)));
+
+	if (cPlatform() == dbipMac) {
+		connect(App::wnd()->windowHandle(), SIGNAL(activeChanged()), this, SLOT(onWndActiveChanged()));
+	}
+}
+
+void EmojiPan::onWndActiveChanged() {
+	if (!App::wnd()->windowHandle()->isActive() && !isHidden()) {
+		leaveEvent(0);
+	}
 }
 
 void EmojiPan::paintEvent(QPaintEvent *e) {
diff --git a/Telegram/SourceFiles/dropdown.h b/Telegram/SourceFiles/dropdown.h
index 0c4e67d537..e490b2c23c 100644
--- a/Telegram/SourceFiles/dropdown.h
+++ b/Telegram/SourceFiles/dropdown.h
@@ -50,6 +50,7 @@ public slots:
 	void hideFinish();
 
 	void showStart();
+	void onWndActiveChanged();
 
 private:
 
@@ -193,6 +194,7 @@ public slots:
 	void hideFinish();
 
 	void showStart();
+	void onWndActiveChanged();
 
 	void onTabChange();
 
diff --git a/Telegram/SourceFiles/history.cpp b/Telegram/SourceFiles/history.cpp
index 9ac117437f..db1bc3d7f4 100644
--- a/Telegram/SourceFiles/history.cpp
+++ b/Telegram/SourceFiles/history.cpp
@@ -673,7 +673,7 @@ void DocumentOpenLink::onClick(Qt::MouseButton button) const {
 		filter = mimeType.filterString() + qsl(";;All files (*.*)");
 	}
 
-	QString filename = saveFileName(lang(lng_save_document), filter, qsl("doc"), name, false);
+	QString filename = saveFileName(lang(lng_save_file), filter, qsl("doc"), name, false);
 	if (!filename.isEmpty()) {
 		data->openOnSave = 1;
 		data->openOnSaveMsgId = App::hoveredLinkItem() ? App::hoveredLinkItem()->id : 0;
@@ -707,7 +707,7 @@ void DocumentSaveLink::doSave(bool forceSavingAs) const {
 			filter = mimeType.filterString() + qsl(";;All files (*.*)");
 		}
 
-		QString filename = saveFileName(lang(lng_save_document), filter, qsl("doc"), name, forceSavingAs, alreadyDir);
+		QString filename = saveFileName(lang(lng_save_file), filter, qsl("doc"), name, forceSavingAs, alreadyDir);
 		if (!filename.isEmpty()) {
 			if (forceSavingAs) {
 				data->cancel();
@@ -2985,11 +2985,11 @@ int32 HistoryDocument::resize(int32 width, bool dontRecountText, const HistoryIt
 }
 
 const QString HistoryDocument::inDialogsText() const {
-	return data->name.isEmpty() ? lang(lng_in_dlg_document) : data->name;
+	return data->name.isEmpty() ? lang(lng_in_dlg_file) : data->name;
 }
 
 const QString HistoryDocument::inHistoryText() const {
-	return qsl("[ ") + lang(lng_in_dlg_document) + (data->name.isEmpty() ? QString() : (qsl(" : ") + data->name)) + qsl(" ]");
+	return qsl("[ ") + lang(lng_in_dlg_file) + (data->name.isEmpty() ? QString() : (qsl(" : ") + data->name)) + qsl(" ]");
 }
 
 bool HistoryDocument::hasPoint(int32 x, int32 y, const HistoryItem *parent, int32 width) const {
diff --git a/Telegram/SourceFiles/historywidget.cpp b/Telegram/SourceFiles/historywidget.cpp
index 607f2fef24..c0055639c0 100644
--- a/Telegram/SourceFiles/historywidget.cpp
+++ b/Telegram/SourceFiles/historywidget.cpp
@@ -657,8 +657,8 @@ void HistoryList::showContextMenu(QContextMenuEvent *e, bool showFromTouch) {
 				if ((lnkVideo && !lnkVideo->video()->already(true).isEmpty()) || (lnkAudio && !lnkAudio->audio()->already(true).isEmpty()) || (lnkDocument && !lnkDocument->document()->already(true).isEmpty())) {
 					_menu->addAction(lang(cPlatform() == dbipMac ? lng_context_show_in_finder : lng_context_show_in_folder), this, SLOT(showContextInFolder()))->setEnabled(true);
 				}
-				_menu->addAction(lang(lnkVideo ? lng_context_open_video : (lnkAudio ? lng_context_open_audio : lng_context_open_document)), this, SLOT(openContextFile()))->setEnabled(true);
-				_menu->addAction(lang(lnkVideo ? lng_context_save_video : (lnkAudio ? lng_context_save_audio : lng_context_save_document)), this, SLOT(saveContextFile()))->setEnabled(true);
+				_menu->addAction(lang(lnkVideo ? lng_context_open_video : (lnkAudio ? lng_context_open_audio : lng_context_open_file)), this, SLOT(openContextFile()))->setEnabled(true);
+				_menu->addAction(lang(lnkVideo ? lng_context_save_video : (lnkAudio ? lng_context_save_audio : lng_context_save_file)), this, SLOT(saveContextFile()))->setEnabled(true);
 			}
 		}
 		if (isUponSelected > 1) {
@@ -2788,7 +2788,7 @@ void HistoryWidget::updateDragAreas() {
 	break;
 	case DragStateFiles:
 		_attachDragDocument.otherEnter();
-		_attachDragDocument.setText(lang(lng_drag_files_here), lang(lng_drag_to_send_documents));
+		_attachDragDocument.setText(lang(lng_drag_files_here), lang(lng_drag_to_send_files));
 		_attachDragPhoto.fastHide();
 	break;
 	case DragStatePhotoFiles:
diff --git a/Telegram/SourceFiles/langs/lang_de.strings b/Telegram/SourceFiles/langs/lang_de.strings
index a312b98851..a4cccd72f1 100644
--- a/Telegram/SourceFiles/langs/lang_de.strings
+++ b/Telegram/SourceFiles/langs/lang_de.strings
@@ -458,9 +458,9 @@ Copyright (c) 2014 John Preston, https://desktop.telegram.org
 
 "lng_new_authorization" = "{name},\n\nwir haben eine Anmeldung von einem neuen Gerät am {day}, {date} um {time} festgestellt. \n\nGerät: {device}\nStandort: {location}\n\nWarst du das selbst? Wenn du das nicht selbst gewesen bist, melde alle anderen Sitzungen in den Telegram Einstellungen unverzüglich ab. \n\nDanke,\nDein Telegram Team";
 
-"lng_new_version_minor" = "Telegram Desktop wurde auf Version {version} aktualisiert\n\n— Fehlerbehebungen und Softwareoptimierungen\n\nKompletter Versionsverlauf:\n{link}";
-
-"lng_new_version7009" = "Telegram Desktop wurde auf Version {version} aktualisiert\n\n— Koreanische Sprache hinzugefügt\n— Neues \"Öffnen mit\" Menü bei Windows und OS X\n\nKompletter Versionsverlauf:\n{link}";
+"lng_new_version_wrap" = "Telegram Desktop wurde aktualisiert auf Version {version}\n\n{changes}\n\nGesamter Versionsverlauf:\n{link}";
+"lng_new_version_minor" = "— Fehlerbehebungen und Softwareoptimierungen";
+"lng_new_version7013" = "— Chat-Hintergrundbild kann in den Einstellungen geändert werden";
 "lng_new_version7006_appstore" = "Telegram Desktop wurde auf Version {version} aktualisiert\n\n— Sticker werden unterstützt\n— Sprachnachrichten werden temporär lokal gespeichert\n— Neue Sprachen hinzugefügt\n\nKompletter Versionsverlauf ist hier zu finden:\n{link}";
 
 // Wnd specific
diff --git a/Telegram/SourceFiles/langs/lang_es.strings b/Telegram/SourceFiles/langs/lang_es.strings
index 40397b5516..3f5474aa66 100644
--- a/Telegram/SourceFiles/langs/lang_es.strings
+++ b/Telegram/SourceFiles/langs/lang_es.strings
@@ -458,9 +458,9 @@ Copyright (c) 2014 John Preston, https://desktop.telegram.org
 
 "lng_new_authorization" = "{name},\nDetectamos un inicio de sesión en tu cuenta desde un nuevo dispositivo el {day}, {date} a las {time}\n\nDispositivo: {device}\nUbicación: {location}\n\nSi no eras tú, puedes ir a Ajustes — Cerrar todas las otras sesiones.\n\nGracias.\nEl equipo de Telegram";
 
-"lng_new_version_minor" = "Telegram Desktop fue actualizada a la versión {version}\n\n — Arreglo de bugs y otras mejoras menores\n\nEl historial completo está disponible aquí:\n{link}";
-
-"lng_new_version7009" = "Telegram Desktop fue actualizada a la versión {version}\n\n– Se añadió el idioma coreano\n– Menú rápido para «abrir con» en Windows y OS X\n\nEl historial completo está disponible aquí:\n{link}";
+"lng_new_version_wrap" = "Telegram Desktop fue actualizada a la versión {version}\n\n{changes}\n\nEl historial completo está disponible aquí:\n{link}";
+"lng_new_version_minor" = "— Corrección de errores y otras mejoras menores";
+"lng_new_version7013" = "— Ahora puedes cambiar el fondo del chat";
 "lng_new_version7006_appstore" = "Telegram Desktop fue actualizada a la versión {version}\n\n– Soporte para stickers\n– Caché local para mensajes de voz\n– Nuevos idiomas añadidos\n\nLa versión completa del historial está disponible aquí:\n{link} ";
 
 // Wnd specific
diff --git a/Telegram/SourceFiles/langs/lang_it.strings b/Telegram/SourceFiles/langs/lang_it.strings
index 362ea5e9a8..e51ead59a4 100644
--- a/Telegram/SourceFiles/langs/lang_it.strings
+++ b/Telegram/SourceFiles/langs/lang_it.strings
@@ -458,9 +458,9 @@ Copyright (c) 2014 John Preston, https://desktop.telegram.org
 
 "lng_new_authorization" = "{name},\nAbbiamo rilevato un accesso al tuo account da un nuovo dispositivo il {day}, {date} alle {time}\n\nDispositivo: {device}\nPosizione: {location}\n\nSe non sei tu, puoi andare su Impostazioni – Termina tutte le sessioni. \n\nGrazie, \nIl Team di Telegram";
 
-"lng_new_version_minor" = "Telegram Desktop è stato aggiornato alla versione {version}\n\n— Bug fix e altri miglioramenti\n\nLa cronologia degli update è disponibile qui:\n{link}";
-
-"lng_new_version7009" = "Telegram Desktop è stato aggiornato alla versione {version}\n\n— Aggiunto il Coreano\n— Menu rapido \"Apri con\" su Windows e OS X\n\nLa cronologia degli update è disponibile qui:\n{link}";
+"lng_new_version_wrap" = "Telegram Desktop si è aggiornato alla versione {version}\n\n{changes}\n\nLa cronologia degli update è disponibile qui:\n{link}";
+"lng_new_version_minor" = "— Bug fix e altri miglioramenti minori";
+"lng_new_version7013" = "— Puoi ora cambiare lo sfondo delle chat";
 "lng_new_version7006_appstore" = "Telegram Desktop è stato aggiornato alla versione {version}\n\n— Aggiunto il supporto agli sticker\n— Cache locale per i messaggi vocali\n— Aggiunte nuove lingue\n\nLa cronologia degli update è disponibile qui:\n{link}";
 
 // Wnd specific
diff --git a/Telegram/SourceFiles/langs/lang_ko.strings b/Telegram/SourceFiles/langs/lang_ko.strings
index 222913bd42..aeebfc2120 100644
--- a/Telegram/SourceFiles/langs/lang_ko.strings
+++ b/Telegram/SourceFiles/langs/lang_ko.strings
@@ -458,9 +458,9 @@ Copyright (c) 2014 John Preston, https://desktop.telegram.org
 
 "lng_new_authorization" = "{name}님,\n{day}, {date} {time}에 새 기기에서 회원님의 계정에 로그인하였습니다.\n\n기기: {device}\n위치: {location}\n\n본인의 접속이 아니라면 '설정'으로 가서 '다른 모든 세션 종료'를 실행하세요.\n\n감사합니다.\n텔레그램 팀 드림";
 
-"lng_new_version_minor" = "텔레그램 데스크탑은 {version} 버전으로 업데이트 되었습니다. \n\n— 버그 수정 및 일부 기능 향상\n\n 전체 버전 히스토리는 아래에서 확인 가능합니다:\n{link}";
-
-"lng_new_version7009" = "텔레그램 데스크탑은 {version} 버전으로 업데이트 되었습니다. \n\n— 한국어 추가\n— 윈도우와 윈도우와 맥에 «다음으로 실행» 퀵메뉴 추가\n\n 전체 버전 히스토리는 아래에서 확인 가능합니다: {link}";
+"lng_new_version_wrap" = "텔레그램 데스크탑은  {version} 버전으로 업데이트 되었습니다.\n\n{changes}\n\n전체 버전 히스토리는 아래에서 확인 가능합니다:\n{link}";
+"lng_new_version_minor" = "— 버그 수정 및 일부 기능 향상";
+"lng_new_version7013" = "— 대화방 배경 변경 가능";
 "lng_new_version7006_appstore" = "텔레그램 데스크탑은  {version} 버전으로 업데이트 되었습니다.\n\n— 스티커 지원\n— 음성 메시지 로컬 캐싱\n— 언어 추가\n\n전체 버전 히스토리는 아래에서 확인 가능합니다:\n{link}";
 
 // Wnd specific
diff --git a/Telegram/SourceFiles/langs/lang_nl.strings b/Telegram/SourceFiles/langs/lang_nl.strings
index ebdaa96abb..1e94815b83 100644
--- a/Telegram/SourceFiles/langs/lang_nl.strings
+++ b/Telegram/SourceFiles/langs/lang_nl.strings
@@ -458,9 +458,9 @@ Copyright (c) 2014 John Preston, https://desktop.telegram.org
 
 "lng_new_authorization" = "{name},\nEr is op je account ingelogd vanaf een nieuw apparaat op {day}, {date} om {time}\n\nApparaat: {device}\nLocatie: {location}\n\nAls jij dit niet was, kun je alle sessies beëindigen via Instellingen – Beëindig alle andere sessies.\n\nBedankt,\nHet Telegram-Team";
 
-"lng_new_version_minor" = "Telegram is bijgewerkt naar versie {version}\n\n— Probleemoplossing en andere kleine verbeteringen\n\nVolledige versiegeschiedenis is hier te vinden:\n{link}";
-
-"lng_new_version7009" = "Telegram is bijgewerkt naar versie {version}\n\n— Koreaans toegevoegd.\n— Snel «openen met» menu voor Windows en OS X\n\nVolledige versiegeschiedenis is hier te vinden:\n{link}";
+"lng_new_version_wrap" = "Telegram is bijgewerkt naar versie {version}\n\n{changes} \n\nVolledige versiegeschiedenis is hier te vinden:\n{link}";
+"lng_new_version_minor" = "— Probleemoplossing en andere kleine verbeteringen";
+"lng_new_version7013" = "— Je kunt nu een chatachtergrond instellen";
 "lng_new_version7006_appstore" = "Telegram is bijgewerkt naar versie {version}\n\n— Ondersteuning voor Stickers\n— Lokale cache voor spraakberichten\n— Nieuwe talen toegevoegd\n\nVolledige versiegeschiedenis is hier te vinden:\n{link}";
 
 // Wnd specific
diff --git a/Telegram/SourceFiles/langs/lang_pt_BR.strings b/Telegram/SourceFiles/langs/lang_pt_BR.strings
index 345a154b66..508cf99bf2 100644
--- a/Telegram/SourceFiles/langs/lang_pt_BR.strings
+++ b/Telegram/SourceFiles/langs/lang_pt_BR.strings
@@ -194,7 +194,7 @@ Copyright (c) 2014 John Preston, https://desktop.telegram.org
 "lng_settings_send_cmdenter" = "Enviar com Cmd+Enter";
 
 "lng_settings_section_background" = "Papel de Parede";
-"lng_settings_bg_from_gallery" = "Escolher da  galeria";
+"lng_settings_bg_from_gallery" = "Escolher da galeria";
 "lng_settings_bg_from_file" = "Escolher dos arquivos";
 "lng_settings_bg_tile" = "Lado-a-lado";
 
@@ -458,9 +458,9 @@ Copyright (c) 2014 John Preston, https://desktop.telegram.org
 
 "lng_new_authorization" = "{name},\nDetectamos um acesso à sua conta de um novo dispositivo em {day}, {date} às {time}\n\nDispositivo: {device}\nLocalização: {location}\n\nCaso não tenha sido você, vá em Configurações – Terminar todas as outras sessões.\n\nObrigado,\nEquipe Telegram";
 
-"lng_new_version_minor" = "Telegram Desktop foi atualizado para a versão {version}\n\n — Resolução de bugs e pequenas melhorias\n\nHistórico completo da atualização disponível aqui:\n{link}";
-
-"lng_new_version7009" = "Telegram Desktop foi atualizado para a versão {version}\n\n — Adicionado o idioma Coreano\n — Menu rápido «abrir com» no Windows e OS X\n\nHistórico completo da atualização disponível aqui:\n{link}";
+"lng_new_version_wrap" = "Telegram Desktop foi atualizado para a versão {version}\n\n{changes}\n\nVersão completa do histórico disponível aqui:\n{link}";
+"lng_new_version_minor" = "— Resolução de bugs e outras menores melhorias";
+"lng_new_version7013" = "— Agora você pode alterar o papel de parede do chat";
 "lng_new_version7006_appstore" = "Telegram Desktop foi atualizado para a versão {version}\n\n — Suporte à stickers\n — Cache local para mensagens de voz\n — Adicionadas novas linguagens\n\nHistórico completo da versão disponível aqui:\n{link}";
 
 // Wnd specific
diff --git a/Telegram/SourceFiles/mainwidget.cpp b/Telegram/SourceFiles/mainwidget.cpp
index 019d05b80f..23ae621852 100644
--- a/Telegram/SourceFiles/mainwidget.cpp
+++ b/Telegram/SourceFiles/mainwidget.cpp
@@ -913,7 +913,7 @@ void MainWidget::mediaOverviewUpdated(PeerData *peer) {
 					switch (i) {
 					case OverviewPhotos: connect(_mediaType.addButton(new IconedButton(this, st::dropdownMediaPhotos, lang(lng_media_type_photos))), SIGNAL(clicked()), this, SLOT(onPhotosSelect())); break;
 					case OverviewVideos: connect(_mediaType.addButton(new IconedButton(this, st::dropdownMediaVideos, lang(lng_media_type_videos))), SIGNAL(clicked()), this, SLOT(onVideosSelect())); break;
-					case OverviewDocuments: connect(_mediaType.addButton(new IconedButton(this, st::dropdownMediaDocuments, lang(lng_media_type_documents))), SIGNAL(clicked()), this, SLOT(onDocumentsSelect())); break;
+					case OverviewDocuments: connect(_mediaType.addButton(new IconedButton(this, st::dropdownMediaDocuments, lang(lng_media_type_files))), SIGNAL(clicked()), this, SLOT(onDocumentsSelect())); break;
 					case OverviewAudios: connect(_mediaType.addButton(new IconedButton(this, st::dropdownMediaAudios, lang(lng_media_type_audios))), SIGNAL(clicked()), this, SLOT(onAudiosSelect())); break;
 					}
 				}
diff --git a/Telegram/SourceFiles/mediaview.cpp b/Telegram/SourceFiles/mediaview.cpp
index 42ef3e6056..646c31c1bd 100644
--- a/Telegram/SourceFiles/mediaview.cpp
+++ b/Telegram/SourceFiles/mediaview.cpp
@@ -1125,7 +1125,7 @@ void MediaView::contextMenuEvent(QContextMenuEvent *e) {
 		if (!_doc->already(true).isEmpty()) {
 			_menu->addAction(lang(cPlatform() == dbipMac ? lng_context_show_in_finder : lng_context_show_in_folder), this, SLOT(onShowInFolder()))->setEnabled(true);
 		}
-		_menu->addAction(lang(lng_context_save_document), this, SLOT(onSave()))->setEnabled(true);
+		_menu->addAction(lang(lng_context_save_file), this, SLOT(onSave()))->setEnabled(true);
 		_menu->addAction(lang(lng_context_close_file), this, SLOT(onClose()))->setEnabled(true);
 		if (_msgid) {
 			_menu->addAction(lang(lng_context_forward_file), this, SLOT(onForward()))->setEnabled(true);
diff --git a/Telegram/SourceFiles/mtproto/mtpDC.cpp b/Telegram/SourceFiles/mtproto/mtpDC.cpp
index 7474e98c64..e698c3b5e3 100644
--- a/Telegram/SourceFiles/mtproto/mtpDC.cpp
+++ b/Telegram/SourceFiles/mtproto/mtpDC.cpp
@@ -201,13 +201,14 @@ namespace {
 		if (keysFile.open(QIODevice::ReadOnly)) {
 			DEBUG_LOG(("MTP Info: keys file opened for reading"));
 			int32 oldFound = readAuthKeys(keysFile);
-
-			if (gDCOptions.isEmpty() || (mainDC && gDCOptions.find(mainDC) == gDCOptions.cend())) { // load first dc info
+			if (gDCOptions.isEmpty()) {
 				const BuiltInDc *bdcs = builtInDcs();
 				for (int i = 0, l = builtInDcsCount(); i < l; ++i) {
 					gDCOptions.insert(bdcs[i].id, mtpDcOption(bdcs[i].id, "", bdcs[i].ip, bdcs[i].port));
 					DEBUG_LOG(("MTP Info: adding built in DC %1 connect option: %2:%3").arg(bdcs[i].id).arg(bdcs[i].ip).arg(bdcs[i].port));
 				}
+			}
+			if (mainDC && gDCOptions.find(mainDC) == gDCOptions.cend()) { // load first dc info
 				userId = 0;
 				mainDC = (gDCOptions.constFind(2) == gDCOptions.cend()) ? gDCOptions.begin().key() : 2;
 			} else {
@@ -515,12 +516,10 @@ void mtpWriteConfig(QDataStream &stream) {
 	if (userId) {
 		stream << quint32(dbiUser) << qint32(userId) << quint32(mainDC);
 	}
-	if (configLoadedOnce) {
-		for (mtpDcOptions::const_iterator i = gDCOptions.cbegin(), e = gDCOptions.cend(); i != e; ++i) {
-			stream << quint32(dbiDcOption) << i->id << QString(i->host.c_str()) << QString(i->ip.c_str()) << i->port;
-		}
-		stream << quint32(dbiConfig1) << qint32(cMaxGroupCount());
+	for (mtpDcOptions::const_iterator i = gDCOptions.cbegin(), e = gDCOptions.cend(); i != e; ++i) {
+		stream << quint32(dbiDcOption) << i->id << QString(i->host.c_str()) << QString(i->ip.c_str()) << i->port;
 	}
+	stream << quint32(dbiConfig1) << qint32(cMaxGroupCount());
 }
 
 bool mtpReadConfigElem(int32 blockId, QDataStream &stream) {
diff --git a/Telegram/SourceFiles/overviewwidget.cpp b/Telegram/SourceFiles/overviewwidget.cpp
index 44cd4664ed..a42d7d9c59 100644
--- a/Telegram/SourceFiles/overviewwidget.cpp
+++ b/Telegram/SourceFiles/overviewwidget.cpp
@@ -1073,8 +1073,8 @@ void OverviewInner::showContextMenu(QContextMenuEvent *e, bool showFromTouch) {
 				if ((lnkVideo && !lnkVideo->video()->already(true).isEmpty()) || (lnkAudio && !lnkAudio->audio()->already(true).isEmpty()) || (lnkDocument && !lnkDocument->document()->already(true).isEmpty())) {
 					_menu->addAction(lang(cPlatform() == dbipMac ? lng_context_show_in_finder : lng_context_show_in_folder), this, SLOT(showContextInFolder()))->setEnabled(true);
 				}
-				_menu->addAction(lang(lnkVideo ? lng_context_open_video : (lnkAudio ? lng_context_open_audio : lng_context_open_document)), this, SLOT(openContextFile()))->setEnabled(true);
-				_menu->addAction(lang(lnkVideo ? lng_context_save_video : (lnkAudio ? lng_context_save_audio : lng_context_save_document)), this, SLOT(saveContextFile()))->setEnabled(true);
+				_menu->addAction(lang(lnkVideo ? lng_context_open_video : (lnkAudio ? lng_context_open_audio : lng_context_open_file)), this, SLOT(openContextFile()))->setEnabled(true);
+				_menu->addAction(lang(lnkVideo ? lng_context_save_video : (lnkAudio ? lng_context_save_audio : lng_context_save_file)), this, SLOT(saveContextFile()))->setEnabled(true);
 			}
 		}
 		if (isUponSelected > 1) {
@@ -1669,7 +1669,7 @@ void OverviewWidget::switchType(MediaOverviewType type) {
 	switch (type) {
 	case OverviewPhotos: _header = lang(lng_profile_photos_header); break;
 	case OverviewVideos: _header = lang(lng_profile_videos_header); break;
-	case OverviewDocuments: _header = lang(lng_profile_documents_header); break;
+	case OverviewDocuments: _header = lang(lng_profile_files_header); break;
 	case OverviewAudios: _header = lang(lng_profile_audios_header); break;
 	}
 	noSelectingScroll();
diff --git a/Telegram/SourceFiles/profilewidget.cpp b/Telegram/SourceFiles/profilewidget.cpp
index ed77911716..e3d7539614 100644
--- a/Telegram/SourceFiles/profilewidget.cpp
+++ b/Telegram/SourceFiles/profilewidget.cpp
@@ -876,7 +876,7 @@ QString ProfileInner::overviewLinkText(int32 type, int32 count) {
 	switch (type) {
 	case OverviewPhotos: return lng_profile_photos(lt_count, count);
 	case OverviewVideos: return lng_profile_videos(lt_count, count);
-	case OverviewDocuments: return lng_profile_documents(lt_count, count);
+	case OverviewDocuments: return lng_profile_files(lt_count, count);
 	case OverviewAudios: return lng_profile_audios(lt_count, count);
 	}
 	return QString();
diff --git a/Telegram/SourceFiles/settingswidget.cpp b/Telegram/SourceFiles/settingswidget.cpp
index 359605070b..6b65139dd7 100644
--- a/Telegram/SourceFiles/settingswidget.cpp
+++ b/Telegram/SourceFiles/settingswidget.cpp
@@ -111,11 +111,7 @@ SettingsInner::SettingsInner(SettingsWidget *parent) : QWidget(parent),
 
 	// contact info
 	_phoneText(self() ? App::formatPhone(self()->phone) : QString()),
-	_usernameText((self() && !self()->username.isEmpty()) ? ('@' + self()->username) : QString()),
-	_phoneLeft(st::linkFont->m.width(lang(lng_settings_phone_number)) + st::linkFont->spacew),
-	_usernameLeft(st::linkFont->m.width(lang(lng_settings_username)) + st::linkFont->spacew),
-	_chooseUsername(this, lang(lng_settings_choose_username)),
-	_changeUsername(this, lang(lng_settings_change_username)),
+	_chooseUsername(this, (self() && !self()->username.isEmpty()) ? ('@' + self()->username) : lang(lng_settings_choose_username)),
 
 	// notifications
 	_desktopNotify(this, lang(lng_settings_desktop_notify), cDesktopNotify()),
@@ -197,7 +193,6 @@ SettingsInner::SettingsInner(SettingsWidget *parent) : QWidget(parent),
 
 	// contact info
 	connect(&_chooseUsername, SIGNAL(clicked()), this, SLOT(onUsername()));
-	connect(&_changeUsername, SIGNAL(clicked()), this, SLOT(onUsername()));
 
 	// notifications
 	_senderName.setDisabled(!_desktopNotify.checked());
@@ -382,13 +377,10 @@ void SettingsInner::paintEvent(QPaintEvent *e) {
 		p.setFont(st::linkFont->f);
 		p.setPen(st::black->p);
 		p.drawText(_left, top + st::linkFont->ascent, lang(lng_settings_phone_number));
-		p.drawText(_left + _phoneLeft, top + st::linkFont->ascent, _phoneText);
+		p.drawText(_left + st::setContactInfoLeft, top + st::linkFont->ascent, _phoneText);
 		top += st::linkFont->height + st::setLittleSkip;
 
 		p.drawText(_left, top + st::linkFont->ascent, lang(lng_settings_username));
-		if (!_usernameText.isEmpty()) {
-			p.drawText(_left + _usernameLeft, top + st::linkFont->ascent, _usernameText);
-		}
 		top += st::linkFont->height;
 
 		// notifications
@@ -613,8 +605,7 @@ void SettingsInner::resizeEvent(QResizeEvent *e) {
 		// contact info
 		top += st::setHeaderSkip;
 		top += st::linkFont->height + st::setLittleSkip;
-		_chooseUsername.move(_left + _usernameLeft, top);
-		_changeUsername.move(_left + st::setWidth - _changeUsername.width(), top); top += st::linkFont->height;
+		_chooseUsername.move(_left + st::setContactInfoLeft, top); top += st::linkFont->height;
 
 		// notifications
 		top += st::setHeaderSkip;
@@ -801,7 +792,7 @@ void SettingsInner::gotFullSelf(const MTPUserFull &selfFull) {
 }
 
 void SettingsInner::usernameChanged() {
-	_usernameText = (self() && !self()->username.isEmpty()) ? ('@' + self()->username) : QString();
+	_chooseUsername.setText((self() && !self()->username.isEmpty()) ? ('@' + self()->username) : lang(lng_settings_choose_username));
 	showAll();
 	update();
 }
@@ -823,16 +814,9 @@ void SettingsInner::showAll() {
 
 	// contact info
 	if (self()) {
-		if (self()->username.isEmpty()) {
-			_chooseUsername.show();
-			_changeUsername.hide();
-		} else {
-			_chooseUsername.hide();
-			_changeUsername.show();
-		}
+		_chooseUsername.show();
 	} else {
 		_chooseUsername.hide();
-		_changeUsername.hide();
 	}
 
 	// notifications
diff --git a/Telegram/SourceFiles/settingswidget.h b/Telegram/SourceFiles/settingswidget.h
index 11d99b77a5..d05afbbb53 100644
--- a/Telegram/SourceFiles/settingswidget.h
+++ b/Telegram/SourceFiles/settingswidget.h
@@ -181,9 +181,8 @@ private:
 	QString _errorText;
 
 	// contact info
-	QString _phoneText, _usernameText;
-	int32 _phoneLeft, _usernameLeft;
-	LinkButton _chooseUsername, _changeUsername;
+	QString _phoneText;
+	LinkButton _chooseUsername;
 
 	// notifications
 	FlatCheckbox _desktopNotify, _senderName, _messagePreview, _soundNotify;
diff --git a/Telegram/SourceFiles/title.cpp b/Telegram/SourceFiles/title.cpp
index 09f845d4c7..7ec146d1e5 100644
--- a/Telegram/SourceFiles/title.cpp
+++ b/Telegram/SourceFiles/title.cpp
@@ -79,7 +79,7 @@ TitleWidget::TitleWidget(Window *window)
 	connect(&_about, SIGNAL(clicked()), this, SLOT(onAbout()));
 	connect(wnd->windowHandle(), SIGNAL(windowStateChanged(Qt::WindowState)), this, SLOT(stateChanged(Qt::WindowState)));
 	connect(App::app(), SIGNAL(updateReady()), this, SLOT(showUpdateBtn()));
-        
+	
     if (cPlatform() != dbipWindows) {
         _minimize.hide();
         _maximize.hide();