diff --git a/.github/dev.yml b/.github/dev.yml
index 542e9d0..7893558 100644
--- a/.github/dev.yml
+++ b/.github/dev.yml
@@ -1,7 +1,7 @@
 pr: none
 trigger: [ master ]
 
-name: 4.1.5-dev.$(Rev:r)
+name: 4.1.6-dev.$(Rev:r)
 
 pool:
   vmImage: ubuntu-latest
diff --git a/EXAMPLES.md b/EXAMPLES.md
index 290879e..ff86a4d 100644
--- a/EXAMPLES.md
+++ b/EXAMPLES.md
@@ -210,6 +210,8 @@ that simplifies the download of a photo/document/file once you get a reference t
 
 See [Examples/Program_DownloadSavedMedia.cs](https://github.com/wiz0u/WTelegramClient/blob/master/Examples/Program_DownloadSavedMedia.cs?ts=4#L28) that download all media files you forward to yourself (Saved Messages)
 
+_Note: To abort an ongoing download, you can throw an exception via the `progress` callback argument._
+
 <a name="upload"></a>
 ## Upload a media file and post it with caption to a chat
 ```csharp
diff --git a/src/UpdateManager.cs b/src/UpdateManager.cs
index b9ee9db..cfd8053 100644
--- a/src/UpdateManager.cs
+++ b/src/UpdateManager.cs
@@ -80,6 +80,7 @@ namespace WTelegram
 					goto newSession;
 				case NewSessionCreated when _client.User != null:
 				newSession:
+					await Task.Delay(HalfSec); // let the opportunity to call DropPendingUpdates/StopResync before a big resync
 					if (_local[L_PTS].pts != 0) await ResyncState();
 					else await ResyncState(await _client.Updates_GetState());
 					break;
@@ -282,6 +283,18 @@ namespace WTelegram
 			finally { _sem.Release(); }
 		}
 
+		public async Task StopResync()
+		{
+			await _sem.WaitAsync();
+			try
+			{
+				foreach (var local in _local.Values)
+					local.pts = 0;
+				_pending.Clear();
+			}
+			finally { _sem.Release(); }
+		}
+
 		private async Task<InputChannel> GetInputChannel(long channel_id, MBoxState local)
 		{
 			if (channel_id <= 0) return null;