diff --git a/.travis/build.sh b/.travis/build.sh
index 161301b35..31ff9a4e7 100755
--- a/.travis/build.sh
+++ b/.travis/build.sh
@@ -585,7 +585,7 @@ buildCustomQt() {
   info_msg "Downloading and building patched qt"
 
   if [ -d "$EXTERNAL/qt${QT_VERSION}" ]; then
-    rm -rf "$EXTERNAL/qt${QT_VERSION}"
+    sudo rm -rf "$EXTERNAL/qt${QT_VERSION}"
   fi
   cd $QT_PATH
   rm -rf *
diff --git a/Telegram/Resources/uwp/AppX/AppxManifest.xml b/Telegram/Resources/uwp/AppX/AppxManifest.xml
index 385b6b037..feb71b48c 100644
--- a/Telegram/Resources/uwp/AppX/AppxManifest.xml
+++ b/Telegram/Resources/uwp/AppX/AppxManifest.xml
@@ -9,7 +9,7 @@
   <Identity Name="TelegramMessengerLLP.TelegramDesktop"
     ProcessorArchitecture="ARCHITECTURE"
     Publisher="CN=536BC709-8EE1-4478-AF22-F0F0F26FF64A"
-    Version="1.2.20.0" />
+    Version="1.2.21.0" />
   <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 07c617a00..7931693f9 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 1,2,20,0
- PRODUCTVERSION 1,2,20,0
+ FILEVERSION 1,2,21,0
+ PRODUCTVERSION 1,2,21,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -52,10 +52,10 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "Telegram Messenger LLP"
             VALUE "FileDescription", "Telegram Desktop"
-            VALUE "FileVersion", "1.2.20.0"
+            VALUE "FileVersion", "1.2.21.0"
             VALUE "LegalCopyright", "Copyright (C) 2014-2018"
             VALUE "ProductName", "Telegram Desktop"
-            VALUE "ProductVersion", "1.2.20.0"
+            VALUE "ProductVersion", "1.2.21.0"
         END
     END
     BLOCK "VarFileInfo"
diff --git a/Telegram/Resources/winrc/Updater.rc b/Telegram/Resources/winrc/Updater.rc
index a1fc40fc3..ca702bfeb 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 1,2,20,0
- PRODUCTVERSION 1,2,20,0
+ FILEVERSION 1,2,21,0
+ PRODUCTVERSION 1,2,21,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -43,10 +43,10 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "Telegram Messenger LLP"
             VALUE "FileDescription", "Telegram Desktop Updater"
-            VALUE "FileVersion", "1.2.20.0"
+            VALUE "FileVersion", "1.2.21.0"
             VALUE "LegalCopyright", "Copyright (C) 2014-2018"
             VALUE "ProductName", "Telegram Desktop"
-            VALUE "ProductVersion", "1.2.20.0"
+            VALUE "ProductVersion", "1.2.21.0"
         END
     END
     BLOCK "VarFileInfo"
diff --git a/Telegram/SourceFiles/core/version.h b/Telegram/SourceFiles/core/version.h
index 006f16c36..7e20db771 100644
--- a/Telegram/SourceFiles/core/version.h
+++ b/Telegram/SourceFiles/core/version.h
@@ -11,7 +11,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 #define BETA_VERSION_MACRO (0ULL)
 
-constexpr int AppVersion = 1002020;
-constexpr str_const AppVersionStr = "1.2.20";
+constexpr int AppVersion = 1002021;
+constexpr str_const AppVersionStr = "1.2.21";
 constexpr bool AppAlphaVersion = true;
 constexpr uint64 AppBetaVersion = BETA_VERSION_MACRO;
diff --git a/Telegram/build/version b/Telegram/build/version
index e50620c24..b443a905c 100644
--- a/Telegram/build/version
+++ b/Telegram/build/version
@@ -1,6 +1,6 @@
-AppVersion         1002020
+AppVersion         1002021
 AppVersionStrMajor 1.2
-AppVersionStrSmall 1.2.20
-AppVersionStr      1.2.20
+AppVersionStrSmall 1.2.21
+AppVersionStr      1.2.21
 AlphaChannel       1
 BetaVersion        0
diff --git a/changelog.txt b/changelog.txt
index 699b5fa8c..e0783e7ce 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,3 +1,8 @@
+1.2.21 alpha (18.05.18)
+
+- Support domain names in mtproto proxy.
+- Bug fixes and other minor improvements.
+
 1.2.20 alpha (13.05.18)
 
 - Emoji and text replacements are done while you type the message.