diff --git a/Telegram/Resources/uwp/AppX/AppxManifest.xml b/Telegram/Resources/uwp/AppX/AppxManifest.xml
index c51c16bef..05919fb20 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="1.8.15.2" />
+    Version="1.9.0.0" />
   <Properties>
     <DisplayName>Telegram Desktop</DisplayName>
     <PublisherDisplayName>Telegram FZ-LLC</PublisherDisplayName>
diff --git a/Telegram/Resources/winrc/Telegram.rc b/Telegram/Resources/winrc/Telegram.rc
index 0eb931289..e2b65f2a7 100644
--- a/Telegram/Resources/winrc/Telegram.rc
+++ b/Telegram/Resources/winrc/Telegram.rc
@@ -33,8 +33,8 @@ IDI_ICON1               ICON                    "..\\art\\icon256.ico"
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 1,8,15,2
- PRODUCTVERSION 1,8,15,2
+ FILEVERSION 1,9,0,0
+ PRODUCTVERSION 1,9,0,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -51,10 +51,10 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "Telegram FZ-LLC"
             VALUE "FileDescription", "Telegram Desktop"
-            VALUE "FileVersion", "1.8.15.2"
+            VALUE "FileVersion", "1.9.0.0"
             VALUE "LegalCopyright", "Copyright (C) 2014-2019"
             VALUE "ProductName", "Telegram Desktop"
-            VALUE "ProductVersion", "1.8.15.2"
+            VALUE "ProductVersion", "1.9.0.0"
         END
     END
     BLOCK "VarFileInfo"
diff --git a/Telegram/Resources/winrc/Updater.rc b/Telegram/Resources/winrc/Updater.rc
index 5d251e924..966e11b01 100644
--- a/Telegram/Resources/winrc/Updater.rc
+++ b/Telegram/Resources/winrc/Updater.rc
@@ -24,8 +24,8 @@ LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 1,8,15,2
- PRODUCTVERSION 1,8,15,2
+ FILEVERSION 1,9,0,0
+ PRODUCTVERSION 1,9,0,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -42,10 +42,10 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "Telegram FZ-LLC"
             VALUE "FileDescription", "Telegram Desktop Updater"
-            VALUE "FileVersion", "1.8.15.2"
+            VALUE "FileVersion", "1.9.0.0"
             VALUE "LegalCopyright", "Copyright (C) 2014-2019"
             VALUE "ProductName", "Telegram Desktop"
-            VALUE "ProductVersion", "1.8.15.2"
+            VALUE "ProductVersion", "1.9.0.0"
         END
     END
     BLOCK "VarFileInfo"
diff --git a/Telegram/SourceFiles/core/changelogs.cpp b/Telegram/SourceFiles/core/changelogs.cpp
index dc92ebcae..d7022a7f9 100644
--- a/Telegram/SourceFiles/core/changelogs.cpp
+++ b/Telegram/SourceFiles/core/changelogs.cpp
@@ -60,6 +60,10 @@ std::map<int, const char*> BetaLogs() {
 
 		"\xE2\x80\xA2 Update your theme for all its users when you change something.\n"
 	},
+	{
+		1009000,
+		"\xE2\x80\xA2 System spellchecker on Windows 8+ and macOS 10.12+.\n"
+	},
 	};
 };
 
diff --git a/Telegram/SourceFiles/core/version.h b/Telegram/SourceFiles/core/version.h
index 2f0f29290..16231e875 100644
--- a/Telegram/SourceFiles/core/version.h
+++ b/Telegram/SourceFiles/core/version.h
@@ -7,7 +7,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #pragma once
 
-#define TDESKTOP_REQUESTED_ALPHA_VERSION (1008015002ULL)
+#define TDESKTOP_REQUESTED_ALPHA_VERSION (0ULL)
 
 #ifdef TDESKTOP_OFFICIAL_TARGET
 #define TDESKTOP_ALPHA_VERSION TDESKTOP_REQUESTED_ALPHA_VERSION
@@ -15,7 +15,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #define TDESKTOP_ALPHA_VERSION (0ULL)
 #endif // TDESKTOP_OFFICIAL_TARGET
 
-constexpr auto AppVersion = 1008015;
-constexpr auto AppVersionStr = "1.8.15";
-constexpr auto AppBetaVersion = false;
+constexpr auto AppVersion = 1009000;
+constexpr auto AppVersionStr = "1.9";
+constexpr auto AppBetaVersion = true;
 constexpr auto AppAlphaVersion = TDESKTOP_ALPHA_VERSION;
diff --git a/Telegram/build/version b/Telegram/build/version
index f833b5b80..b3f93e6c0 100644
--- a/Telegram/build/version
+++ b/Telegram/build/version
@@ -1,6 +1,6 @@
-AppVersion         1008015
-AppVersionStrMajor 1.8
-AppVersionStrSmall 1.8.15
-AppVersionStr      1.8.15
-BetaChannel        0
-AlphaVersion       1008015002
+AppVersion         1009000
+AppVersionStrMajor 1.9
+AppVersionStrSmall 1.9
+AppVersionStr      1.9.0
+BetaChannel        1
+AlphaVersion       0
diff --git a/changelog.txt b/changelog.txt
index b67b9206a..0f0834000 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,3 +1,7 @@
+1.9 beta (05.11.19)
+
+- System spellchecker on Windows 8+ and macOS 10.12+.
+
 1.8.15 (07.10.19)
 
 - Bug fixes and other minor improvements.