diff --git a/Telegram/Resources/uwp/AppX/AppxManifest.xml b/Telegram/Resources/uwp/AppX/AppxManifest.xml
index 9bc50a2e4..83106557d 100644
--- a/Telegram/Resources/uwp/AppX/AppxManifest.xml
+++ b/Telegram/Resources/uwp/AppX/AppxManifest.xml
@@ -9,7 +9,7 @@
   <Identity Name="TelegramDesktop"
     ProcessorArchitecture="x64"
     Publisher="CN=Telegram Messenger LLP, O=Telegram Messenger LLP, L=London, C=GB"
-    Version="1.0.20.0" />
+    Version="1.0.21.0" />
   <Properties>
     <DisplayName>Telegram Desktop</DisplayName>
     <PublisherDisplayName>Telegram Messenger LLP</PublisherDisplayName>
diff --git a/Telegram/Resources/winrc/Telegram.rc b/Telegram/Resources/winrc/Telegram.rc
index 175b5a983..3791c7818 100644
--- a/Telegram/Resources/winrc/Telegram.rc
+++ b/Telegram/Resources/winrc/Telegram.rc
@@ -34,8 +34,8 @@ IDI_ICON1               ICON                    "..\\art\\icon256.ico"
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 1,0,20,0
- PRODUCTVERSION 1,0,20,0
+ FILEVERSION 1,0,21,0
+ PRODUCTVERSION 1,0,21,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -52,10 +52,10 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "Telegram Messenger LLP"
             VALUE "FileDescription", "Telegram Desktop"
-            VALUE "FileVersion", "1.0.20.0"
+            VALUE "FileVersion", "1.0.21.0"
             VALUE "LegalCopyright", "Copyright (C) 2014-2017"
             VALUE "ProductName", "Telegram Desktop"
-            VALUE "ProductVersion", "1.0.20.0"
+            VALUE "ProductVersion", "1.0.21.0"
         END
     END
     BLOCK "VarFileInfo"
diff --git a/Telegram/Resources/winrc/Updater.rc b/Telegram/Resources/winrc/Updater.rc
index 04b937c36..732ed1381 100644
--- a/Telegram/Resources/winrc/Updater.rc
+++ b/Telegram/Resources/winrc/Updater.rc
@@ -25,8 +25,8 @@ LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 1,0,20,0
- PRODUCTVERSION 1,0,20,0
+ FILEVERSION 1,0,21,0
+ PRODUCTVERSION 1,0,21,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -43,10 +43,10 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "Telegram Messenger LLP"
             VALUE "FileDescription", "Telegram Desktop Updater"
-            VALUE "FileVersion", "1.0.20.0"
+            VALUE "FileVersion", "1.0.21.0"
             VALUE "LegalCopyright", "Copyright (C) 2014-2017"
             VALUE "ProductName", "Telegram Desktop"
-            VALUE "ProductVersion", "1.0.20.0"
+            VALUE "ProductVersion", "1.0.21.0"
         END
     END
     BLOCK "VarFileInfo"
diff --git a/Telegram/SourceFiles/core/version.h b/Telegram/SourceFiles/core/version.h
index c3d344876..f77799e47 100644
--- a/Telegram/SourceFiles/core/version.h
+++ b/Telegram/SourceFiles/core/version.h
@@ -24,7 +24,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 
 #define BETA_VERSION_MACRO (0ULL)
 
-constexpr int AppVersion = 1000020;
-constexpr str_const AppVersionStr = "1.0.20";
+constexpr int AppVersion = 1000021;
+constexpr str_const AppVersionStr = "1.0.21";
 constexpr bool AppAlphaVersion = true;
 constexpr uint64 AppBetaVersion = BETA_VERSION_MACRO;
diff --git a/Telegram/SourceFiles/messenger.cpp b/Telegram/SourceFiles/messenger.cpp
index 3f46a88b6..30a53d9f5 100644
--- a/Telegram/SourceFiles/messenger.cpp
+++ b/Telegram/SourceFiles/messenger.cpp
@@ -637,8 +637,8 @@ void Messenger::checkMapVersion() {
 	if (Local::oldMapVersion() < AppVersion) {
 		if (Local::oldMapVersion()) {
 			QString versionFeatures;
-			if ((cAlphaVersion() || cBetaVersion()) && Local::oldMapVersion() < 1000019) {
-				versionFeatures = QString::fromUtf8("\xE2\x80\x94 Go to date. Click on the date in a chat to jump to a specific day.\n\xE2\x80\x94 Respect macOS 'Do not disturb' settings for sound notifications.\n\xE2\x80\x94 Bug fixes and other minor improvements.");
+			if ((cAlphaVersion() || cBetaVersion()) && Local::oldMapVersion() < 1000021) {
+				versionFeatures = QString::fromUtf8("\xE2\x80\x94 Send MP4/MOV files as videos that will play right inside Telegram.\n\xE2\x80\x94 Bug fixes and other minor improvements.");
 			} else if (!(cAlphaVersion() || cBetaVersion()) && Local::oldMapVersion() < 1000012) {
 				versionFeatures = langNewVersionText();
 			} else {
diff --git a/Telegram/build/version b/Telegram/build/version
index e8eee0bcd..e746e5c54 100644
--- a/Telegram/build/version
+++ b/Telegram/build/version
@@ -1,6 +1,6 @@
-AppVersion         1000020
+AppVersion         1000021
 AppVersionStrMajor 1.0
-AppVersionStrSmall 1.0.20
-AppVersionStr      1.0.20
+AppVersionStrSmall 1.0.21
+AppVersionStr      1.0.21
 AlphaChannel       1
 BetaVersion        0
diff --git a/changelog.txt b/changelog.txt
index 4f38c9aa5..4056f6f3f 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,3 +1,8 @@
+1.0.21 alpha (11.03.17)
+
+- Send MP4/MOV files as videos that will play right inside Telegram.
+- Bug fixes and other minor improvements.
+
 1.0.20 alpha (08.03.17)
 
 - Bug fixes and other minor improvements.