diff --git a/Telegram/Resources/uwp/AppX/AppxManifest.xml b/Telegram/Resources/uwp/AppX/AppxManifest.xml
index b76d8c341..8d315018c 100644
--- a/Telegram/Resources/uwp/AppX/AppxManifest.xml
+++ b/Telegram/Resources/uwp/AppX/AppxManifest.xml
@@ -10,7 +10,7 @@
   <Identity Name="TelegramMessengerLLP.TelegramDesktop"
     ProcessorArchitecture="ARCHITECTURE"
     Publisher="CN=536BC709-8EE1-4478-AF22-F0F0F26FF64A"
-    Version="4.5.8.0" />
+    Version="4.5.9.0" />
   <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 824c001b1..c9c655751 100644
--- a/Telegram/Resources/winrc/Telegram.rc
+++ b/Telegram/Resources/winrc/Telegram.rc
@@ -44,8 +44,8 @@ IDI_ICON1               ICON                    "..\\art\\icon256.ico"
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 4,5,8,0
- PRODUCTVERSION 4,5,8,0
+ FILEVERSION 4,5,9,0
+ PRODUCTVERSION 4,5,9,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -62,10 +62,10 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "Telegram FZ-LLC"
             VALUE "FileDescription", "Telegram Desktop"
-            VALUE "FileVersion", "4.5.8.0"
+            VALUE "FileVersion", "4.5.9.0"
             VALUE "LegalCopyright", "Copyright (C) 2014-2023"
             VALUE "ProductName", "Telegram Desktop"
-            VALUE "ProductVersion", "4.5.8.0"
+            VALUE "ProductVersion", "4.5.9.0"
         END
     END
     BLOCK "VarFileInfo"
diff --git a/Telegram/Resources/winrc/Updater.rc b/Telegram/Resources/winrc/Updater.rc
index 212a4b520..79a7a2367 100644
--- a/Telegram/Resources/winrc/Updater.rc
+++ b/Telegram/Resources/winrc/Updater.rc
@@ -35,8 +35,8 @@ LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 4,5,8,0
- PRODUCTVERSION 4,5,8,0
+ FILEVERSION 4,5,9,0
+ PRODUCTVERSION 4,5,9,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -53,10 +53,10 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "Telegram FZ-LLC"
             VALUE "FileDescription", "Telegram Desktop Updater"
-            VALUE "FileVersion", "4.5.8.0"
+            VALUE "FileVersion", "4.5.9.0"
             VALUE "LegalCopyright", "Copyright (C) 2014-2023"
             VALUE "ProductName", "Telegram Desktop"
-            VALUE "ProductVersion", "4.5.8.0"
+            VALUE "ProductVersion", "4.5.9.0"
         END
     END
     BLOCK "VarFileInfo"
diff --git a/Telegram/SourceFiles/core/version.h b/Telegram/SourceFiles/core/version.h
index a3582a2ad..eedaeb6b7 100644
--- a/Telegram/SourceFiles/core/version.h
+++ b/Telegram/SourceFiles/core/version.h
@@ -22,7 +22,7 @@ constexpr auto AppId = "{53F49750-6209-4FBF-9CA8-7A333C87D1ED}"_cs;
 constexpr auto AppNameOld = "Telegram Win (Unofficial)"_cs;
 constexpr auto AppName = "Telegram Desktop"_cs;
 constexpr auto AppFile = "Telegram"_cs;
-constexpr auto AppVersion = 4005008;
-constexpr auto AppVersionStr = "4.5.8";
+constexpr auto AppVersion = 4005009;
+constexpr auto AppVersionStr = "4.5.9";
 constexpr auto AppBetaVersion = true;
 constexpr auto AppAlphaVersion = TDESKTOP_ALPHA_VERSION;
diff --git a/Telegram/build/version b/Telegram/build/version
index eeeb1717e..df89d3957 100644
--- a/Telegram/build/version
+++ b/Telegram/build/version
@@ -1,7 +1,7 @@
-AppVersion         4005008
+AppVersion         4005009
 AppVersionStrMajor 4.5
-AppVersionStrSmall 4.5.8
-AppVersionStr      4.5.8
+AppVersionStrSmall 4.5.9
+AppVersionStr      4.5.9
 BetaChannel        1
 AlphaVersion       0
-AppVersionOriginal 4.5.8.beta
+AppVersionOriginal 4.5.9.beta
diff --git a/changelog.txt b/changelog.txt
index 343408f64..e64328338 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,3 +1,9 @@
+4.5.9 beta (02.02.23)
+
+- Hide taskbar window preview when Telegram is locked by a passcode (Windows only).
+- More improvements for working with multiple windows.
+- Bug fixes and other minor improvements.
+
 4.5.8 beta (21.01.23)
 
 - Allow opening another account in a new window (see Settings > Advanced > Experimental Settings).