diff --git a/Telegram/SourceFiles/core/changelogs.cpp b/Telegram/SourceFiles/core/changelogs.cpp
index cc68604b3..7bf982d01 100644
--- a/Telegram/SourceFiles/core/changelogs.cpp
+++ b/Telegram/SourceFiles/core/changelogs.cpp
@@ -21,60 +21,6 @@ namespace {
 
 std::map<int, const char*> BetaLogs() {
 	return {
-	{
-		2001008,
-		"- Add support for full group message history export.\n"
-
-		"- Allow export of a single chat message history in JSON format."
-	},
-	{
-		2001014,
-		"- Support for multiple accounts."
-	},
-	{
-		2001017,
-		"- Fix messages editing in a non-active account.\n"
-
-		"- Fix large animated emoji messages editing.\n"
-
-		"- Fix high definition GIF animations opening in media viewer.\n"
-
-		"- Multiple crash fixes."
-	},
-	{
-		2001018,
-		"- Fix a possible crash in Picture-in-Picture video player.\n"
-
-		"- Fix copying links from message texts.\n"
-
-		"- Raise file size limit to 2000 MB.\n"
-
-		"- Allow using system window frame in Windows and Linux."
-	},
-	{
-		2001019,
-		"- File uploading in an inactive account correctly finishes.\n"
-
-		"- Stickers panel works correctly after switching between accounts.\n"
-
-		"- Large .webp files are not shown as stickers.\n"
-
-		"- MacBook TouchBar support was fully rewritten with fixes for multiple accounts.\n"
-
-		"- Custom window title bar works in all Linux versions.\n"
-
-		"- Passcode doesn't auto-lock while you're active in other apps on Linux X11."
-	},
-	{
-		2001021,
-		"- Edit your scheduled messages.\n"
-
-		"- See the unread messages indicator for your additional accounts on the main menu button.\n"
-
-		"- Use Auto-Night Mode to make Telegram night mode match the system Dark Mode settings.\n"
-
-		"- Enjoy dark native window frame for Telegram night mode on Windows.\n"
-	},
 	{
 		2004006,
 		"- Fix image compression option when sending files with drag-n-drop.\n"
@@ -119,6 +65,16 @@ std::map<int, const char*> BetaLogs() {
 		
 		"- Fix group members display.\n"
 	},
+	{
+		2004015,
+		"- Improve design of voice chats.\n"
+
+		"- Fix sending of voice messages as replies.\n"
+
+		"- Fix 'Open With' menu position in macOS.\n"
+
+		"- Fix freeze on secondary screen disconnect.\n"
+	},
 	};
 };
 
diff --git a/Telegram/lib_ui b/Telegram/lib_ui
index abb615a7c..a29e93ca5 160000
--- a/Telegram/lib_ui
+++ b/Telegram/lib_ui
@@ -1 +1 @@
-Subproject commit abb615a7c9cb3a3992f67637592b481ccc50f17a
+Subproject commit a29e93ca55d40c3b50d654fd2a9a153ab0227b6c
diff --git a/changelog.txt b/changelog.txt
index ecd27ca4e..cce23c41f 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,3 +1,10 @@
+2.4.15 beta (19.12.20)
+
+- Improve design of voice chats.
+- Fix sending of voice messages as replies.
+- Fix 'Open With' menu position in macOS.
+- Fix freeze on secondary screen disconnect.
+
 2.4.14 beta (14.12.20)
 
 - Create voice chats in legacy groups.