diff --git a/src/components/appMediaViewer.ts b/src/components/appMediaViewer.ts
index 8de25c45..e72ea384 100644
--- a/src/components/appMediaViewer.ts
+++ b/src/components/appMediaViewer.ts
@@ -133,7 +133,7 @@ class AppMediaViewerBase<ContentAdditionType extends string, ButtonsAdditionType
     buttonsDiv.classList.add(MEDIA_VIEWER_CLASSNAME + '-buttons');
 
     topButtons.concat(['download', 'close']).forEach(name => {
-      const button = ButtonIcon(name);
+      const button = ButtonIcon(name, {noRipple: name === 'close' || undefined});
       this.buttons[name] = button;
       buttonsDiv.append(button);
     });
diff --git a/src/components/chat/bubbles.ts b/src/components/chat/bubbles.ts
index f9be0d5c..7ebb8a82 100644
--- a/src/components/chat/bubbles.ts
+++ b/src/components/chat/bubbles.ts
@@ -42,7 +42,7 @@ import { AppChatsManager } from "../../lib/appManagers/appChatsManager";
 import ListenerSetter from "../../helpers/listenerSetter";
 import PollElement from "../poll";
 import AudioElement from "../audio";
-import { Message, MessageEntity,  MessageReplyHeader } from "../../layer";
+import { Message, MessageEntity,  MessageReplyHeader, Update } from "../../layer";
 import { REPLIES_PEER_ID } from "../../lib/mtproto/mtproto_config";
 import { FocusDirection } from "../../helpers/fastSmoothScroll";
 import useHeavyAnimationCheck, { getHeavyAnimationPromise, dispatchHeavyAnimationEvent, interruptHeavyAnimation } from "../../hooks/useHeavyAnimationCheck";
@@ -408,7 +408,7 @@ export default class ChatBubbles {
     }
 
     this.listenerSetter.add(this.bubblesContainer, 'dblclick', (e) => {
-      if(this.chat.selection.isSelecting || !this.appMessagesManager.canWriteToPeer(this.peerId)) {
+      if(this.chat.selection.isSelecting || !this.appMessagesManager.canWriteToPeer(this.peerId, this.chat.threadId)) {
         return;
       }
       
@@ -502,6 +502,19 @@ export default class ChatBubbles {
       }
     });
 
+    this.listenerSetter.add(rootScope, 'chat_update', (e) => {
+      const chatId: number = e;
+      if(this.peerId === -chatId) {
+        const hadRights = this.chatInner.classList.contains('has-rights');
+        const hasRights = this.appMessagesManager.canWriteToPeer(this.peerId, this.chat.threadId);
+
+        if(hadRights !== hasRights) {
+          this.finishPeerChange();
+          this.chat.input.updateMessageInput();
+        }
+      }
+    });
+
     this.unreadedObserver = new IntersectionObserver((entries) => {
       entries.forEach(entry => {
         if(entry.isIntersecting) {
@@ -1748,7 +1761,7 @@ export default class ChatBubbles {
   public finishPeerChange() {
     const peerId = this.peerId;
     const isChannel = this.appPeersManager.isChannel(peerId);
-    const canWrite = this.appMessagesManager.canWriteToPeer(peerId);
+    const canWrite = this.appMessagesManager.canWriteToPeer(peerId, this.chat.threadId);
     
     this.chatInner.classList.toggle('has-rights', canWrite);
     this.bubblesContainer.classList.toggle('is-chat-input-hidden', !canWrite);
diff --git a/src/components/chat/contextMenu.ts b/src/components/chat/contextMenu.ts
index 600115ff..6f3ff16a 100644
--- a/src/components/chat/contextMenu.ts
+++ b/src/components/chat/contextMenu.ts
@@ -35,9 +35,9 @@ export default class ChatContextMenu {
   private isTargetAGroupedItem: boolean;
   private isTextSelected: boolean;
   private isAnchorTarget: boolean;
-  public peerId: number;
-  public mid: number;
-  public message: any;
+  private peerId: number;
+  private mid: number;
+  private message: any;
 
   constructor(private attachTo: HTMLElement, private chat: Chat, private appMessagesManager: AppMessagesManager, private appChatsManager: AppChatsManager, private appPeersManager: AppPeersManager, private appPollsManager: AppPollsManager) {
     const onContextMenu = (e: MouseEvent | Touch | TouchEvent) => {
@@ -190,7 +190,7 @@ export default class ChatContextMenu {
       icon: 'reply',
       text: 'Reply',
       onClick: this.onReplyClick,
-      verify: () => this.appMessagesManager.canWriteToPeer(this.peerId) && 
+      verify: () => this.appMessagesManager.canWriteToPeer(this.peerId, this.chat.threadId) && 
         !this.message.pFlags.is_outgoing && 
         !!this.chat.input.messageInput && 
         this.chat.type !== 'scheduled'/* ,
diff --git a/src/components/chat/input.ts b/src/components/chat/input.ts
index 5f61a6d0..f6bcaa2e 100644
--- a/src/components/chat/input.ts
+++ b/src/components/chat/input.ts
@@ -692,31 +692,7 @@ export default class ChatInput {
     }
 
     if(this.messageInput) {
-      const canWrite = this.appMessagesManager.canWriteToPeer(peerId);
-      this.chatInput.classList.add('no-transition');
-      this.chatInput.classList.toggle('is-hidden', !canWrite);
-      void this.chatInput.offsetLeft; // reflow
-      this.chatInput.classList.remove('no-transition');
-
-      const visible = this.attachMenuButtons.filter(button => {
-        const good = button.verify(peerId);
-        button.element.classList.toggle('hide', !good);
-        return good;
-      });
-  
-      if(!canWrite) {
-        this.messageInput.removeAttribute('contenteditable');
-      } else {
-        this.messageInput.setAttribute('contenteditable', 'true');
-        this.setDraft(undefined, false);
-
-        if(!this.messageInput.innerHTML) {
-          this.messageInputField.onFakeInput();
-        }
-      }
-      
-      this.attachMenu.toggleAttribute('disabled', !visible.length);
-      this.updateSendBtn();
+      this.updateMessageInput();
     } else if(this.pinnedControlBtn) {
       if(this.appPeersManager.canPinMessage(this.chat.peerId)) {
         this.pinnedControlBtn.append(i18n('Chat.Input.UnpinAll'));
@@ -728,6 +704,34 @@ export default class ChatInput {
     }
   }
 
+  public updateMessageInput() {
+    const canWrite = this.appMessagesManager.canWriteToPeer(this.chat.peerId, this.chat.threadId);
+    this.chatInput.classList.add('no-transition');
+    this.chatInput.classList.toggle('is-hidden', !canWrite);
+    void this.chatInput.offsetLeft; // reflow
+    this.chatInput.classList.remove('no-transition');
+
+    const visible = this.attachMenuButtons.filter(button => {
+      const good = button.verify(this.chat.peerId);
+      button.element.classList.toggle('hide', !good);
+      return good;
+    });
+
+    if(!canWrite) {
+      this.messageInput.removeAttribute('contenteditable');
+    } else {
+      this.messageInput.setAttribute('contenteditable', 'true');
+      this.setDraft(undefined, false);
+
+      if(!this.messageInput.innerHTML) {
+        this.messageInputField.onFakeInput();
+      }
+    }
+    
+    this.attachMenu.toggleAttribute('disabled', !visible.length);
+    this.updateSendBtn();
+  }
+
   private attachMessageInputField() {
     const oldInputField = this.messageInputField;
     this.messageInputField = new InputField({
diff --git a/src/components/chat/topbar.ts b/src/components/chat/topbar.ts
index ab10707c..45a117e3 100644
--- a/src/components/chat/topbar.ts
+++ b/src/components/chat/topbar.ts
@@ -289,9 +289,9 @@ export default class ChatTopbar {
     }, {listenerSetter: this.listenerSetter});
 
     this.listenerSetter.add(rootScope, 'chat_update', (e) => {
-      const peerId: number = e;
-      if(this.peerId === -peerId) {
-        const chat = this.appChatsManager.getChat(peerId) as Channel/*  | Chat */;
+      const chatId: number = e;
+      if(this.peerId === -chatId) {
+        const chat = this.appChatsManager.getChat(chatId) as Channel/*  | Chat */;
         
         this.btnJoin.classList.toggle('hide', !(chat as Channel)?.pFlags?.left);
         this.setUtilsWidth();
diff --git a/src/components/popups/deleteDialog.ts b/src/components/popups/deleteDialog.ts
index 6a17c5f5..ee3bce4a 100644
--- a/src/components/popups/deleteDialog.ts
+++ b/src/components/popups/deleteDialog.ts
@@ -24,9 +24,13 @@ export default class PopupDeleteDialog {
     }; */
 
     const callbackLeave = (checked: PopupPeerButtonCallbackCheckboxes) => {
-      const promise = appChatsManager.leave(-peerId).then(() => {
-        return appMessagesManager.flushHistory(-peerId);
-      });
+      let promise = appChatsManager.leave(-peerId);
+      
+      if(checkboxes && checked[checkboxes[0].text]) {
+        promise = promise.then(() => {
+          return appMessagesManager.flushHistory(peerId);
+        }) as any;
+      }
       
       onSelect && onSelect(promise);
     };
diff --git a/src/config/app.ts b/src/config/app.ts
index 31ee2203..294f120f 100644
--- a/src/config/app.ts
+++ b/src/config/app.ts
@@ -13,7 +13,7 @@ const App = {
   id: 1025907,
   hash: '452b0359b988148995f22ff0f4229750',
   version: '0.5.3',
-  langPackVersion: '0.1.6',
+  langPackVersion: '0.1.7',
   langPack: 'macos',
   langPackCode: 'en',
   domains: [] as string[],
diff --git a/src/lang.ts b/src/lang.ts
index c81d710c..c802696b 100644
--- a/src/lang.ts
+++ b/src/lang.ts
@@ -417,6 +417,7 @@ const lang = {
   "Online": "online",
   "MessageScheduleSend": "Send Now",
   "MessageScheduleEditTime": "Reschedule",
+  "YouLeft": "You left this group",
 
   // * macos
   "AccountSettings.Filters": "Chat Folders",
diff --git a/src/lib/appManagers/appChatsManager.ts b/src/lib/appManagers/appChatsManager.ts
index c180d8b3..e1a8a76f 100644
--- a/src/lib/appManagers/appChatsManager.ts
+++ b/src/lib/appManagers/appChatsManager.ts
@@ -44,11 +44,11 @@ export class AppChatsManager {
 
   constructor() {
     rootScope.addMultipleEventsListeners({
-      updateChannel: (update) => {
+      /* updateChannel: (update) => {
         const channelId = update.channel_id;
         //console.log('updateChannel:', update);
         rootScope.broadcast('channel_settings', {channelId});
-      },
+      }, */
 
       updateChannelParticipant: (update) => {
         apiManagerProxy.clearCache('channels.getParticipants', (params) => {
@@ -268,7 +268,7 @@ export class AppChatsManager {
     return rights;
   }
 
-  public hasRights(id: number, action: ChatRights, rights?: ChatAdminRights | ChatBannedRights) {
+  public hasRights(id: number, action: ChatRights, rights?: ChatAdminRights | ChatBannedRights, isThread?: boolean) {
     const chat: Chat = this.getChat(id);
     if(chat._ === 'chatEmpty') return false;
 
@@ -285,14 +285,16 @@ export class AppChatsManager {
 
     if(!rights) {
       rights = chat.admin_rights || (chat as Chat.channel).banned_rights || chat.default_banned_rights;
-    }
-    
-    if(!rights) {
-      return false;
+
+      if(!rights) {
+        return false;
+      }
     }
 
     let myFlags: Partial<{[flag in keyof ChatBannedRights['pFlags'] | keyof ChatAdminRights['pFlags']]: true}> = {};
-    if(rights) myFlags = rights.pFlags as any;
+    if(rights) {
+      myFlags = rights.pFlags as any;
+    }
 
     switch(action) {
       case 'embed_links':
@@ -303,12 +305,16 @@ export class AppChatsManager {
       case 'send_messages':
       case 'send_polls':
       case 'send_stickers': {
+        if(!isThread && chat.pFlags.left) {
+          return false;
+        }
+
         if(rights._ === 'chatBannedRights' && myFlags[action]) {
           return false;
         }
 
         if(chat._ === 'channel') {
-          if((!chat.pFlags.megagroup && !myFlags.post_messages)) {
+          if(!chat.pFlags.megagroup && !myFlags.post_messages) {
             return false;
           }
         }
@@ -375,7 +381,6 @@ export class AppChatsManager {
   } */
 
   public isChannel(id: number) {
-    if(id < 0) id = -id;
     const chat = this.chats[id];
     return chat && (chat._ === 'channel' || chat._ === 'channelForbidden')/*  || this.channelAccess[id] */;
   }
@@ -409,7 +414,6 @@ export class AppChatsManager {
   }
 
   public getChannelInput(id: number): InputChannel {
-    if(id < 0) id = -id;
     const chat: Chat = this.getChat(id);
     if(chat._ === 'chatEmpty' || !(chat as Chat.channel).access_hash) {
       return {
diff --git a/src/lib/appManagers/appMessagesManager.ts b/src/lib/appManagers/appMessagesManager.ts
index 121e1b0d..dbb1e995 100644
--- a/src/lib/appManagers/appMessagesManager.ts
+++ b/src/lib/appManagers/appMessagesManager.ts
@@ -183,7 +183,7 @@ export class AppMessagesManager {
   }} = {};
 
   private reloadConversationsPromise: Promise<void>;
-  private reloadConversationsPeers: number[] = [];
+  private reloadConversationsPeers: Set<number> = new Set();
 
   public log = logger('MESSAGES', LogTypes.Error | LogTypes.Debug | LogTypes.Log | LogTypes.Warn);
 
@@ -1883,8 +1883,8 @@ export class AppMessagesManager {
 
   public reloadConversation(peerId: number | number[]) {
     [].concat(peerId).forEach(peerId => {
-      if(!this.reloadConversationsPeers.includes(peerId)) {
-        this.reloadConversationsPeers.push(peerId);
+      if(!this.reloadConversationsPeers.has(peerId)) {
+        this.reloadConversationsPeers.add(peerId);
         //this.log('will reloadConversation', peerId);
       }
     });
@@ -1892,8 +1892,8 @@ export class AppMessagesManager {
     if(this.reloadConversationsPromise) return this.reloadConversationsPromise;
     return this.reloadConversationsPromise = new Promise((resolve, reject) => {
       setTimeout(() => {
-        const peers = this.reloadConversationsPeers.map(peerId => appPeersManager.getInputDialogPeerById(peerId));
-        this.reloadConversationsPeers.length = 0;
+        const peers = Array.from(this.reloadConversationsPeers).map(peerId => appPeersManager.getInputDialogPeerById(peerId));
+        this.reloadConversationsPeers.clear();
 
         apiManager.invokeApi('messages.getPeerDialogs', {peers}).then((result) => {
           this.dialogsStorage.applyDialogs(result);
@@ -1947,7 +1947,7 @@ export class AppMessagesManager {
             _: 'updateChannelAvailableMessages',
             channel_id: channelId,
             available_min_id: maxId
-          }
+          } as Update.updateChannelAvailableMessages
         });
 
         return true;
@@ -2297,6 +2297,7 @@ export class AppMessagesManager {
       if(message.action) {
         let migrateFrom: number;
         let migrateTo: number;
+        const suffix = message.fromId === appUsersManager.getSelf().id ? 'You' : '';
         switch(message.action._) {
           //case 'messageActionChannelEditPhoto':
           case 'messageActionChatEditPhoto':
@@ -2332,7 +2333,6 @@ export class AppMessagesManager {
             if(message.action.users.length === 1) {
               message.action.user_id = message.action.users[0];
               if(message.fromId === message.action.user_id) {
-                let suffix = message.fromId === appUsersManager.getSelf().id ? 'You' : '';
                 if(isChannel) {
                   message.action._ = 'messageActionChatJoined' + suffix;
                 } else {
@@ -2346,7 +2346,7 @@ export class AppMessagesManager {
 
           case 'messageActionChatDeleteUser':
             if(message.fromId === message.action.user_id) {
-              message.action._ = 'messageActionChatLeave';
+              message.action._ = 'messageActionChatLeave' + suffix;
             }
             break;
 
@@ -4029,19 +4029,19 @@ export class AppMessagesManager {
   private onUpdateChannel = (update: Update.updateChannel) => {
     const channelId: number = update.channel_id;
     const peerId = -channelId;
-    const channel = appChatsManager.getChat(channelId);
-
-    const needDialog = channel._ === 'channel' && appChatsManager.isInChat(channelId);
-    const dialog = this.getDialogOnly(peerId);
+    const channel: Chat.channel = appChatsManager.getChat(channelId);
 
-    const canViewHistory = channel._ === 'channel' && (channel.username || !channel.pFlags.left && !channel.pFlags.kicked);
+    const needDialog = appChatsManager.isInChat(channelId);
+    
+    const canViewHistory = !!channel.username || !channel.pFlags.left;
     const hasHistory = this.historiesStorage[peerId] !== undefined;
-
+    
     if(canViewHistory !== hasHistory) {
       delete this.historiesStorage[peerId];
       rootScope.broadcast('history_forbidden', peerId);
     }
-
+    
+    const dialog = this.getDialogOnly(peerId);
     if(!!dialog !== needDialog) {
       if(needDialog) {
         this.reloadConversation(-channelId);
@@ -4299,10 +4299,10 @@ export class AppMessagesManager {
     }, settings);
   }
 
-  public canWriteToPeer(peerId: number) {
+  public canWriteToPeer(peerId: number, threadId?: number) {
     if(peerId < 0) {
       const isChannel = appPeersManager.isChannel(peerId);
-      const hasRights = isChannel && appChatsManager.hasRights(-peerId, 'send_messages'); 
+      const hasRights = isChannel && appChatsManager.hasRights(-peerId, 'send_messages', undefined, !!threadId); 
       return !isChannel || hasRights;
     } else {
       return appUsersManager.canSendToUser(peerId);
diff --git a/src/lib/appManagers/appStateManager.ts b/src/lib/appManagers/appStateManager.ts
index 5b0614ed..10f4f5c8 100644
--- a/src/lib/appManagers/appStateManager.ts
+++ b/src/lib/appManagers/appStateManager.ts
@@ -369,7 +369,7 @@ export class AppStateManager extends EventListenerBase<{
 
   public keepPeerSingle(peerId: number, type: string) {
     const existsPeerId = this.singlePeerMap.get(type);
-    if(existsPeerId && existsPeerId !== peerId) {
+    if(existsPeerId && existsPeerId !== peerId && this.neededPeers.has(existsPeerId)) {
       const set = this.neededPeers.get(existsPeerId);
       set.delete(type);
 
diff --git a/src/lib/langPack.ts b/src/lib/langPack.ts
index 546c8e7e..a71e5037 100644
--- a/src/lib/langPack.ts
+++ b/src/lib/langPack.ts
@@ -28,6 +28,7 @@ export const langPack: {[actionType: string]: LangPackKey} = {
   "messageActionChatAddUser": "ActionAddUser",
   "messageActionChatAddUsers": "ActionAddUser",
 	"messageActionChatLeave": "ActionLeftUser",
+	"messageActionChatLeaveYou": "YouLeft",
 	"messageActionChatDeleteUser": "ActionKickUser",
 	"messageActionChatJoinedByLink": "ActionInviteUser",
   "messageActionPinMessage": "ActionPinnedNoText",
diff --git a/src/lib/rootScope.ts b/src/lib/rootScope.ts
index 751ac112..81d6816f 100644
--- a/src/lib/rootScope.ts
+++ b/src/lib/rootScope.ts
@@ -83,7 +83,7 @@ export type BroadcastEvents = {
   'chat_full_update': number,
   'poll_update': {poll: Poll, results: PollResults},
   'chat_update': number,
-  'channel_settings': {channelId: number},
+  //'channel_settings': {channelId: number},
   'webpage_updated': {id: string, msgs: number[]},
 
   'download_progress': any,
diff --git a/src/scss/partials/_sidebar.scss b/src/scss/partials/_sidebar.scss
index 87d724e4..38fe506f 100644
--- a/src/scss/partials/_sidebar.scss
+++ b/src/scss/partials/_sidebar.scss
@@ -11,13 +11,13 @@
     align-items: center;
     justify-content: space-between;
     padding: 0 1rem;
-    min-height: 56px;
+    min-height: 3.5rem;
     flex: 0 0 auto;
     user-select: none;
     cursor: default;
 
     @include respond-to(handhelds) {
-      padding: 7.5px 8px;
+      padding: 0 .5rem;
     }
 
     /* //position: sticky !important;
@@ -28,8 +28,8 @@
     &__title {
       flex: 1;
       font-weight: 500;
-      padding-left: 24px;
-      font-size: 20px;
+      padding-left: 1.5rem;
+      font-size: 1.25rem;
       color: var(--primary-text-color);
     }
 
@@ -40,8 +40,8 @@
 
   &-close-button {
     overflow: inherit !important;
-    width: 40px;
-    height: 40px;
+    width: 2.5rem;
+    height: 2.5rem;
   }
 
   &-content {
diff --git a/src/scss/partials/popups/_popup.scss b/src/scss/partials/popups/_popup.scss
index 7957566d..7522a0bf 100644
--- a/src/scss/partials/popups/_popup.scss
+++ b/src/scss/partials/popups/_popup.scss
@@ -14,7 +14,7 @@
   z-index: 3;
   background-color: rgba(0, 0, 0, .3);
   margin: 0;
-  padding: 2.5rem;
+  padding: 1.875rem;
   box-shadow: none;
   opacity: 0;
   visibility: hidden;
@@ -70,21 +70,9 @@
   }
 
   &-close {
-    cursor: pointer;
-    color: var(--secondary-text-color);
     z-index: 3;
-    text-align: center;
     justify-self: center;
-    line-height: 1;
-    //transition: color .2s;
-
-    body.animation-level-0 & {
-      transition: none;
-    }
-    
-    /* @include hover() {
-      color: #000;
-    } */
+    flex: 0 0 auto;
   }
 
   &-header {