diff --git a/td/generate/scheme/telegram_api.tl b/td/generate/scheme/telegram_api.tl
index 480589de1..c20b6195f 100644
--- a/td/generate/scheme/telegram_api.tl
+++ b/td/generate/scheme/telegram_api.tl
@@ -120,7 +120,7 @@ channel#83259464 flags:# creator:flags.0?true left:flags.2?true broadcast:flags.
 channelForbidden#17d493d5 flags:# broadcast:flags.5?true megagroup:flags.8?true id:long access_hash:long title:string until_date:flags.16?int = Chat;
 
 chatFull#c9d31138 flags:# can_set_username:flags.7?true has_scheduled:flags.8?true id:long about:string participants:ChatParticipants chat_photo:flags.2?Photo notify_settings:PeerNotifySettings exported_invite:flags.13?ExportedChatInvite bot_info:flags.3?Vector<BotInfo> pinned_msg_id:flags.6?int folder_id:flags.11?int call:flags.12?InputGroupCall ttl_period:flags.14?int groupcall_default_join_as:flags.15?Peer theme_emoticon:flags.16?string requests_pending:flags.17?int recent_requesters:flags.17?Vector<long> available_reactions:flags.18?ChatReactions = ChatFull;
-channelFull#f2355507 flags:# can_view_participants:flags.3?true can_set_username:flags.6?true can_set_stickers:flags.7?true hidden_prehistory:flags.10?true can_set_location:flags.16?true has_scheduled:flags.19?true can_view_stats:flags.20?true blocked:flags.22?true flags2:# can_delete_channel:flags2.0?true id:long about:string participants_count:flags.0?int admins_count:flags.1?int kicked_count:flags.2?int banned_count:flags.2?int online_count:flags.13?int read_inbox_max_id:int read_outbox_max_id:int unread_count:int chat_photo:Photo notify_settings:PeerNotifySettings exported_invite:flags.23?ExportedChatInvite bot_info:Vector<BotInfo> migrated_from_chat_id:flags.4?long migrated_from_max_id:flags.4?int pinned_msg_id:flags.5?int stickerset:flags.8?StickerSet available_min_id:flags.9?int folder_id:flags.11?int linked_chat_id:flags.14?long location:flags.15?ChannelLocation slowmode_seconds:flags.17?int slowmode_next_send_date:flags.18?int stats_dc:flags.12?int pts:int call:flags.21?InputGroupCall ttl_period:flags.24?int pending_suggestions:flags.25?Vector<string> groupcall_default_join_as:flags.26?Peer theme_emoticon:flags.27?string requests_pending:flags.28?int recent_requesters:flags.28?Vector<long> default_send_as:flags.29?Peer available_reactions:flags.30?ChatReactions = ChatFull;
+channelFull#f2355507 flags:# can_view_participants:flags.3?true can_set_username:flags.6?true can_set_stickers:flags.7?true hidden_prehistory:flags.10?true can_set_location:flags.16?true has_scheduled:flags.19?true can_view_stats:flags.20?true blocked:flags.22?true flags2:# can_delete_channel:flags2.0?true antispam:flags2.1?true id:long about:string participants_count:flags.0?int admins_count:flags.1?int kicked_count:flags.2?int banned_count:flags.2?int online_count:flags.13?int read_inbox_max_id:int read_outbox_max_id:int unread_count:int chat_photo:Photo notify_settings:PeerNotifySettings exported_invite:flags.23?ExportedChatInvite bot_info:Vector<BotInfo> migrated_from_chat_id:flags.4?long migrated_from_max_id:flags.4?int pinned_msg_id:flags.5?int stickerset:flags.8?StickerSet available_min_id:flags.9?int folder_id:flags.11?int linked_chat_id:flags.14?long location:flags.15?ChannelLocation slowmode_seconds:flags.17?int slowmode_next_send_date:flags.18?int stats_dc:flags.12?int pts:int call:flags.21?InputGroupCall ttl_period:flags.24?int pending_suggestions:flags.25?Vector<string> groupcall_default_join_as:flags.26?Peer theme_emoticon:flags.27?string requests_pending:flags.28?int recent_requesters:flags.28?Vector<long> default_send_as:flags.29?Peer available_reactions:flags.30?ChatReactions = ChatFull;
 
 chatParticipant#c02d4007 user_id:long inviter_id:long date:int = ChatParticipant;
 chatParticipantCreator#e46bcee4 user_id:long = ChatParticipant;
@@ -176,7 +176,7 @@ messageActionContactSignUp#f3f25f76 = MessageAction;
 messageActionGeoProximityReached#98e0d697 from_id:Peer to_id:Peer distance:int = MessageAction;
 messageActionGroupCall#7a0d7f42 flags:# call:InputGroupCall duration:flags.0?int = MessageAction;
 messageActionInviteToGroupCall#502f92f7 call:InputGroupCall users:Vector<long> = MessageAction;
-messageActionSetMessagesTTL#aa1afbfd period:int = MessageAction;
+messageActionSetMessagesTTL#3c134d7b flags:# period:int auto_setting_from:flags.0?long = MessageAction;
 messageActionGroupCallScheduled#b3a07661 call:InputGroupCall schedule_date:int = MessageAction;
 messageActionSetChatTheme#aa786345 emoticon:string = MessageAction;
 messageActionChatJoinedByRequest#ebbca3cb = MessageAction;
@@ -184,9 +184,9 @@ messageActionWebViewDataSentMe#47dd8079 text:string data:string = MessageAction;
 messageActionWebViewDataSent#b4c38cb5 text:string = MessageAction;
 messageActionGiftPremium#aba0f5c6 currency:string amount:long months:int = MessageAction;
 messageActionTopicCreate#d999256 flags:# title:string icon_color:int icon_emoji_id:flags.0?long = MessageAction;
-messageActionTopicEdit#b18a431c flags:# title:flags.0?string icon_emoji_id:flags.1?long closed:flags.2?Bool = MessageAction;
+messageActionTopicEdit#c0944820 flags:# title:flags.0?string icon_emoji_id:flags.1?long closed:flags.2?Bool hidden:flags.3?Bool = MessageAction;
 
-dialog#a8edd0f5 flags:# pinned:flags.2?true unread_mark:flags.3?true peer:Peer top_message:int read_inbox_max_id:int read_outbox_max_id:int unread_count:int unread_mentions_count:int unread_reactions_count:int notify_settings:PeerNotifySettings pts:flags.0?int draft:flags.1?DraftMessage folder_id:flags.4?int = Dialog;
+dialog#d58a08c6 flags:# pinned:flags.2?true unread_mark:flags.3?true peer:Peer top_message:int read_inbox_max_id:int read_outbox_max_id:int unread_count:int unread_mentions_count:int unread_reactions_count:int notify_settings:PeerNotifySettings pts:flags.0?int draft:flags.1?DraftMessage folder_id:flags.4?int ttl_period:flags.5?int = Dialog;
 dialogFolder#71bd134c flags:# pinned:flags.2?true folder:Folder peer:Peer top_message:int unread_muted_peers_count:int unread_unmuted_peers_count:int unread_muted_messages_count:int unread_unmuted_messages_count:int = Dialog;
 
 photoEmpty#2331b22d id:long = Photo;
@@ -715,6 +715,7 @@ auth.codeTypeSms#72a3158c = auth.CodeType;
 auth.codeTypeCall#741cd3e3 = auth.CodeType;
 auth.codeTypeFlashCall#226ccefb = auth.CodeType;
 auth.codeTypeMissedCall#d61ad6ee = auth.CodeType;
+auth.codeTypeFragmentSms#6ed998c = auth.CodeType;
 
 auth.sentCodeTypeApp#3dbb5986 length:int = auth.SentCodeType;
 auth.sentCodeTypeSms#c000bba2 length:int = auth.SentCodeType;
@@ -723,6 +724,7 @@ auth.sentCodeTypeFlashCall#ab03c6d9 pattern:string = auth.SentCodeType;
 auth.sentCodeTypeMissedCall#82006484 prefix:string length:int = auth.SentCodeType;
 auth.sentCodeTypeEmailCode#5a159841 flags:# apple_signin_allowed:flags.0?true google_signin_allowed:flags.1?true email_pattern:string length:int next_phone_login_date:flags.2?int = auth.SentCodeType;
 auth.sentCodeTypeSetUpEmailRequired#a5491dea flags:# apple_signin_allowed:flags.0?true google_signin_allowed:flags.1?true = auth.SentCodeType;
+auth.sentCodeTypeFragmentSms#d9565c39 url:string length:int = auth.SentCodeType;
 
 messages.botCallbackAnswer#36585ea4 flags:# alert:flags.1?true has_url:flags.3?true native_ui:flags.4?true message:flags.0?string url:flags.2?string cache_time:int = messages.BotCallbackAnswer;
 
@@ -956,6 +958,7 @@ channelAdminLogEventActionCreateTopic#58707d28 topic:ForumTopic = ChannelAdminLo
 channelAdminLogEventActionEditTopic#f06fe208 prev_topic:ForumTopic new_topic:ForumTopic = ChannelAdminLogEventAction;
 channelAdminLogEventActionDeleteTopic#ae168909 topic:ForumTopic = ChannelAdminLogEventAction;
 channelAdminLogEventActionPinTopic#5d8d353b flags:# prev_topic:flags.0?ForumTopic new_topic:flags.1?ForumTopic = ChannelAdminLogEventAction;
+channelAdminLogEventActionToggleAntiSpam#64f36dfc new_value:Bool = ChannelAdminLogEventAction;
 
 channelAdminLogEvent#1fad68cd id:long date:int user_id:long action:ChannelAdminLogEventAction = ChannelAdminLogEvent;
 
@@ -1462,6 +1465,10 @@ forumTopic#71701da9 flags:# my:flags.1?true closed:flags.2?true pinned:flags.3?t
 
 messages.forumTopics#367617d3 flags:# order_by_create_date:flags.0?true count:int topics:Vector<ForumTopic> messages:Vector<Message> chats:Vector<Chat> users:Vector<User> pts:int = messages.ForumTopics;
 
+defaultHistoryTTL#43b46b20 period:int = DefaultHistoryTTL;
+
+exportedContactToken#41bf109b url:string expires:int = ExportedContactToken;
+
 ---functions---
 
 invokeAfterMsg#cb9f372d {X:Type} msg_id:long query:!X = X;
@@ -1601,6 +1608,8 @@ contacts.acceptContact#f831a20f id:InputUser = Updates;
 contacts.getLocated#d348bc44 flags:# background:flags.1?true geo_point:InputGeoPoint self_expires:flags.0?int = Updates;
 contacts.blockFromReplies#29a8962c flags:# delete_message:flags.0?true delete_history:flags.1?true report_spam:flags.2?true msg_id:int = Updates;
 contacts.resolvePhone#8af94344 phone:string = contacts.ResolvedPeer;
+contacts.exportContactToken#f8654027 = ExportedContactToken;
+contacts.importContactToken#13005788 token:string = User;
 
 messages.getMessages#63c66506 id:Vector<InputMessage> = messages.Messages;
 messages.getDialogs#a0f4cb4f flags:# exclude_pinned:flags.0?true folder_id:flags.1?int offset_date:int offset_id:int offset_peer:InputPeer limit:int hash:long = messages.Dialogs;
@@ -1623,7 +1632,7 @@ messages.editChatTitle#73783ffd chat_id:long title:string = Updates;
 messages.editChatPhoto#35ddd674 chat_id:long photo:InputChatPhoto = Updates;
 messages.addChatUser#f24753e3 chat_id:long user_id:InputUser fwd_limit:int = Updates;
 messages.deleteChatUser#a2185cab flags:# revoke_history:flags.0?true chat_id:long user_id:InputUser = Updates;
-messages.createChat#9cb126e users:Vector<InputUser> title:string = Updates;
+messages.createChat#34a818 flags:# users:Vector<InputUser> title:string ttl_period:flags.0?int = Updates;
 messages.getDhConfig#26cf8950 version:int random_length:int = messages.DhConfig;
 messages.requestEncryption#f64daf43 user_id:InputUser random_id:int g_a:bytes = EncryptedChat;
 messages.acceptEncryption#3dbc0415 peer:InputEncryptedChat g_b:bytes key_fingerprint:long = EncryptedChat;
@@ -1779,6 +1788,8 @@ messages.getTopReactions#bb8125ba limit:int hash:long = messages.Reactions;
 messages.getRecentReactions#39461db2 limit:int hash:long = messages.Reactions;
 messages.clearRecentReactions#9dfeefb4 = Bool;
 messages.getExtendedMedia#84f80814 peer:InputPeer id:Vector<int> = Updates;
+messages.setDefaultHistoryTTL#9eb51445 period:int = Bool;
+messages.getDefaultHistoryTTL#658b7188 = DefaultHistoryTTL;
 
 updates.getState#edd4882a = updates.State;
 updates.getDifference#25939651 flags:# pts:int pts_total_limit:flags.0?int date:int qts:int = updates.Difference;
@@ -1830,7 +1841,7 @@ channels.getParticipants#77ced9d0 channel:InputChannel filter:ChannelParticipant
 channels.getParticipant#a0ab6cc6 channel:InputChannel participant:InputPeer = channels.ChannelParticipant;
 channels.getChannels#a7f6bbb id:Vector<InputChannel> = messages.Chats;
 channels.getFullChannel#8736a09 channel:InputChannel = messages.ChatFull;
-channels.createChannel#3d5fb10f flags:# broadcast:flags.0?true megagroup:flags.1?true for_import:flags.3?true title:string about:string geo_point:flags.2?InputGeoPoint address:flags.2?string = Updates;
+channels.createChannel#91006707 flags:# broadcast:flags.0?true megagroup:flags.1?true for_import:flags.3?true title:string about:string geo_point:flags.2?InputGeoPoint address:flags.2?string ttl_period:flags.4?int = Updates;
 channels.editAdmin#d33c8902 channel:InputChannel user_id:InputUser admin_rights:ChatAdminRights rank:string = Updates;
 channels.editTitle#566decd0 channel:InputChannel title:string = Updates;
 channels.editPhoto#f12e57c9 channel:InputChannel photo:InputChatPhoto = Updates;
@@ -1870,10 +1881,12 @@ channels.toggleForum#a4298b29 channel:InputChannel enabled:Bool = Updates;
 channels.createForumTopic#f40c0224 flags:# channel:InputChannel title:string icon_color:flags.0?int icon_emoji_id:flags.3?long random_id:long send_as:flags.2?InputPeer = Updates;
 channels.getForumTopics#de560d1 flags:# channel:InputChannel q:flags.0?string offset_date:int offset_id:int offset_topic:int limit:int = messages.ForumTopics;
 channels.getForumTopicsByID#b0831eb9 channel:InputChannel topics:Vector<int> = messages.ForumTopics;
-channels.editForumTopic#6c883e2d flags:# channel:InputChannel topic_id:int title:flags.0?string icon_emoji_id:flags.1?long closed:flags.2?Bool = Updates;
+channels.editForumTopic#f4dfa185 flags:# channel:InputChannel topic_id:int title:flags.0?string icon_emoji_id:flags.1?long closed:flags.2?Bool hidden:flags.3?Bool = Updates;
 channels.updatePinnedForumTopic#6c2d9026 channel:InputChannel topic_id:int pinned:Bool = Updates;
 channels.deleteTopicHistory#34435f2d channel:InputChannel top_msg_id:int = messages.AffectedHistory;
 channels.reorderPinnedForumTopics#2950a18f flags:# force:flags.0?true channel:InputChannel order:Vector<int> = Updates;
+channels.toggleAntiSpam#68f3e4eb channel:InputChannel enabled:Bool = Updates;
+channels.reportAntiSpamFalsePositive#a850a693 channel:InputChannel msg_id:int = Bool;
 
 bots.sendCustomRequest#aa2769ed custom_method:string params:DataJSON = DataJSON;
 bots.answerWebhookJSONQuery#e6213f4d query_id:long data:DataJSON = Bool;
diff --git a/td/telegram/DialogEventLog.cpp b/td/telegram/DialogEventLog.cpp
index 69b771a54..7f53f2650 100644
--- a/td/telegram/DialogEventLog.cpp
+++ b/td/telegram/DialogEventLog.cpp
@@ -411,6 +411,9 @@ static td_api::object_ptr<td_api::ChatEventAction> get_chat_event_action_object(
       return td_api::make_object<td_api::chatEventForumTopicPinned>(old_topic_info.get_forum_topic_info_object(td),
                                                                     new_topic_info.get_forum_topic_info_object(td));
     }
+    case telegram_api::channelAdminLogEventActionToggleAntiSpam::ID: {
+      return nullptr;
+    }
     default:
       UNREACHABLE();
       return nullptr;
diff --git a/td/telegram/ForumTopicManager.cpp b/td/telegram/ForumTopicManager.cpp
index 04e87440c..9011223c4 100644
--- a/td/telegram/ForumTopicManager.cpp
+++ b/td/telegram/ForumTopicManager.cpp
@@ -134,7 +134,7 @@ class EditForumTopicQuery final : public Td::ResultHandler {
     send_query(G()->net_query_creator().create(
         telegram_api::channels_editForumTopic(flags, std::move(input_channel),
                                               top_thread_message_id.get_server_message_id().get(), title,
-                                              icon_custom_emoji_id.get(), false),
+                                              icon_custom_emoji_id.get(), false, false),
         {{channel_id}}));
   }
 
@@ -149,7 +149,7 @@ class EditForumTopicQuery final : public Td::ResultHandler {
     send_query(G()->net_query_creator().create(
         telegram_api::channels_editForumTopic(flags, std::move(input_channel),
                                               top_thread_message_id.get_server_message_id().get(), string(), 0,
-                                              is_closed),
+                                              is_closed, false),
         {{channel_id}}));
   }
 
diff --git a/td/telegram/MessagesManager.cpp b/td/telegram/MessagesManager.cpp
index be0e933c7..49b72eabd 100644
--- a/td/telegram/MessagesManager.cpp
+++ b/td/telegram/MessagesManager.cpp
@@ -1015,7 +1015,9 @@ class CreateChatQuery final : public Td::ResultHandler {
 
   void send(vector<tl_object_ptr<telegram_api::InputUser>> &&input_users, const string &title, int64 random_id) {
     random_id_ = random_id;
-    send_query(G()->net_query_creator().create(telegram_api::messages_createChat(std::move(input_users), title)));
+    int32 flags = 0;
+    send_query(
+        G()->net_query_creator().create(telegram_api::messages_createChat(flags, std::move(input_users), title, 0)));
   }
 
   void on_result(BufferSlice packet) final {
@@ -1061,7 +1063,7 @@ class CreateChannelQuery final : public Td::ResultHandler {
     random_id_ = random_id;
     send_query(G()->net_query_creator().create(
         telegram_api::channels_createChannel(flags, false /*ignored*/, false /*ignored*/, false /*ignored*/, title,
-                                             about, location.get_input_geo_point(), location.get_address())));
+                                             about, location.get_input_geo_point(), location.get_address(), 0)));
   }
 
   void on_result(BufferSlice packet) final {
diff --git a/td/telegram/SendCodeHelper.cpp b/td/telegram/SendCodeHelper.cpp
index 179e3ddbd..020f6287f 100644
--- a/td/telegram/SendCodeHelper.cpp
+++ b/td/telegram/SendCodeHelper.cpp
@@ -120,6 +120,8 @@ SendCodeHelper::AuthenticationCodeInfo SendCodeHelper::get_authentication_code_i
       return {AuthenticationCodeInfo::Type::FlashCall, 0, string()};
     case telegram_api::auth_codeTypeMissedCall::ID:
       return {AuthenticationCodeInfo::Type::MissedCall, 0, string()};
+    case telegram_api::auth_codeTypeFragmentSms::ID:
+      return {AuthenticationCodeInfo::Type::MissedCall, 0, string()};
     default:
       UNREACHABLE();
       return AuthenticationCodeInfo();
@@ -151,6 +153,11 @@ SendCodeHelper::AuthenticationCodeInfo SendCodeHelper::get_sent_authentication_c
       return AuthenticationCodeInfo{AuthenticationCodeInfo::Type::MissedCall, code_type->length_,
                                     std::move(code_type->prefix_)};
     }
+    case telegram_api::auth_sentCodeTypeFragmentSms::ID: {
+      auto code_type = move_tl_object_as<telegram_api::auth_sentCodeTypeFragmentSms>(sent_code_type_ptr);
+      return AuthenticationCodeInfo{AuthenticationCodeInfo::Type::MissedCall, code_type->length_,
+                                    std::move(code_type->url_)};
+    }
     case telegram_api::auth_sentCodeTypeEmailCode::ID:
     case telegram_api::auth_sentCodeTypeSetUpEmailRequired::ID:
     default:
diff --git a/td/telegram/Version.h b/td/telegram/Version.h
index f2e7fa4dc..284b0adb7 100644
--- a/td/telegram/Version.h
+++ b/td/telegram/Version.h
@@ -10,7 +10,7 @@
 
 namespace td {
 
-constexpr int32 MTPROTO_LAYER = 149;
+constexpr int32 MTPROTO_LAYER = 150;
 
 enum class Version : int32 {
   Initial,  // 0