diff --git a/Telegram/SourceFiles/window/main_window.cpp b/Telegram/SourceFiles/window/main_window.cpp
index b6f2d0096c..9a808233a4 100644
--- a/Telegram/SourceFiles/window/main_window.cpp
+++ b/Telegram/SourceFiles/window/main_window.cpp
@@ -357,9 +357,11 @@ void MainWindow::updateShadowSize() {
 }
 
 void MainWindow::recountGeometryConstraints() {
+#ifdef Q_OS_LINUX
 	const auto hasShadow = this->hasShadow();
 	setWindowFlag(Qt::NoDropShadowWindowHint, hasShadow);
 	setAttribute(Qt::WA_OpaquePaintEvent, !hasShadow);
+#endif // Q_OS_LINUX
 
 	updateShadowSize();
 	updateMinimumSize();
diff --git a/Telegram/lib_ui b/Telegram/lib_ui
index a1dbca8578..b5d6851c97 160000
--- a/Telegram/lib_ui
+++ b/Telegram/lib_ui
@@ -1 +1 @@
-Subproject commit a1dbca85783289d737ce0368f5ec3659b5745458
+Subproject commit b5d6851c976ef87a9f662a8aaae3db45d6141cef
diff --git a/cmake b/cmake
index 4c8956027d..9b1ed3965b 160000
--- a/cmake
+++ b/cmake
@@ -1 +1 @@
-Subproject commit 4c8956027de8e8e8b984c5daa643aacb14a89123
+Subproject commit 9b1ed3965b836131fe08b1090a8b5788a04066b8
diff --git a/docs/building-cmake.md b/docs/building-cmake.md
index 6d5b08d8d9..fcab9f775f 100644
--- a/docs/building-cmake.md
+++ b/docs/building-cmake.md
@@ -273,19 +273,18 @@ Go to ***BuildPath*** and run
     sudo make install
     cd ..
 
-    LibrariesPath=`pwd`
     git clone https://github.com/desktop-app/tg_owt.git
     cd tg_owt
     mkdir out
     cd out
     mkdir Debug
     cd Debug
-    cmake -G Ninja -DCMAKE_BUILD_TYPE=Debug -DTG_OWT_SPECIAL_TARGET=linux -DTG_OWT_LIBJPEG_INCLUDE_PATH=$LibrariesPath/qt_5_12_8/qtbase/src/3rdparty/libjpeg -DTG_OWT_OPENSSL_INCLUDE_PATH=/usr/local/desktop-app/openssl-1.1.1/include -DTG_OWT_OPUS_INCLUDE_PATH=/usr/local/include/opus -DTG_OWT_FFMPEG_INCLUDE_PATH=/usr/local/include ../..
+    cmake -G Ninja -DCMAKE_BUILD_TYPE=Debug -DTG_OWT_SPECIAL_TARGET=linux -DTG_OWT_LIBJPEG_INCLUDE_PATH=`pwd`/../../../qt_5_12_8/qtbase/src/3rdparty/libjpeg -DTG_OWT_OPENSSL_INCLUDE_PATH=/usr/local/desktop-app/openssl-1.1.1/include -DTG_OWT_OPUS_INCLUDE_PATH=/usr/local/include/opus -DTG_OWT_FFMPEG_INCLUDE_PATH=/usr/local/include ../..
     ninja
     cd ..
     mkdir Release
     cd Release
-    cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -DTG_OWT_SPECIAL_TARGET=mac -DTG_OWT_LIBJPEG_INCLUDE_PATH=$LibrariesPath/qt_5_12_8/qtbase/src/3rdparty/libjpeg -DTG_OWT_OPENSSL_INCLUDE_PATH=$LibrariesPath/openssl_1_1_1/include -DTG_OWT_OPUS_INCLUDE_PATH=/usr/local/macos/include/opus -DTG_OWT_FFMPEG_INCLUDE_PATH=/usr/local/macos/include ../..
+    cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -DTG_OWT_SPECIAL_TARGET=mac -DTG_OWT_LIBJPEG_INCLUDE_PATH=`pwd`/../../../qt_5_12_8/qtbase/src/3rdparty/libjpeg -DTG_OWT_OPENSSL_INCLUDE_PATH=$LibrariesPath/openssl_1_1_1/include -DTG_OWT_OPUS_INCLUDE_PATH=/usr/local/macos/include/opus -DTG_OWT_FFMPEG_INCLUDE_PATH=/usr/local/macos/include ../..
     ninja
     cd ..\..
 
diff --git a/docs/building-msvc.md b/docs/building-msvc.md
index 9df32aff24..0ce31ba21f 100644
--- a/docs/building-msvc.md
+++ b/docs/building-msvc.md
@@ -165,19 +165,18 @@ Open **x86 Native Tools Command Prompt for VS 2019.bat**, go to ***BuildPath***
     jom -j4 install
     cd ..
 
-    set LibrariesPath=%cd%
     git clone https://github.com/desktop-app/tg_owt.git
     cd tg_owt
     mkdir out
     cd out
     mkdir Debug
     cd Debug
-    cmake -G Ninja -DCMAKE_BUILD_TYPE=Debug -DTG_OWT_SPECIAL_TARGET=win -DTG_OWT_LIBJPEG_INCLUDE_PATH=%LibrariesPath%/qt_5_12_8/qtbase/src/3rdparty/libjpeg -DTG_OWT_OPENSSL_INCLUDE_PATH=%LibrariesPath%/openssl_1_1_1/include -DTG_OWT_OPUS_INCLUDE_PATH=%LibrariesPath%/opus/include -DTG_OWT_FFMPEG_INCLUDE_PATH=%LibrariesPath%/ffmpeg ../..
+    cmake -G Ninja -DCMAKE_BUILD_TYPE=Debug -DTG_OWT_SPECIAL_TARGET=win -DTG_OWT_LIBJPEG_INCLUDE_PATH=%cd%/../../../qt_5_12_8/qtbase/src/3rdparty/libjpeg -DTG_OWT_OPENSSL_INCLUDE_PATH=%%cd%/../../../openssl_1_1_1/include -DTG_OWT_OPUS_INCLUDE_PATH=%cd%/../../../opus/include -DTG_OWT_FFMPEG_INCLUDE_PATH=%cd%/../../..ffmpeg ../..
     ninja
     cd ..
     mkdir Release
     cd Release
-    cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -DTG_OWT_SPECIAL_TARGET=win -DTG_OWT_LIBJPEG_INCLUDE_PATH=%LibrariesPath%/qt_5_12_8/qtbase/src/3rdparty/libjpeg -DTG_OWT_OPENSSL_INCLUDE_PATH=%LibrariesPath%/openssl_1_1_1/include -DTG_OWT_OPUS_INCLUDE_PATH=%LibrariesPath%/opus/include -DTG_OWT_FFMPEG_INCLUDE_PATH=%LibrariesPath%/ffmpeg ../..
+    cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -DTG_OWT_SPECIAL_TARGET=win -DTG_OWT_LIBJPEG_INCLUDE_PATH=%cd%/../../../qt_5_12_8/qtbase/src/3rdparty/libjpeg -DTG_OWT_OPENSSL_INCLUDE_PATH=%cd%/../../../openssl_1_1_1/include -DTG_OWT_OPUS_INCLUDE_PATH=%cd%/../../../opus/include -DTG_OWT_FFMPEG_INCLUDE_PATH=%cd%/../../../ffmpeg ../..
     ninja
     cd ..\..
 
diff --git a/docs/building-osx.md b/docs/building-osx.md
index f47c7de91d..4ed10d78c1 100644
--- a/docs/building-osx.md
+++ b/docs/building-osx.md
@@ -46,7 +46,6 @@ Go to ***BuildPath*** and run
     cd ../..
 
     cd Libraries
-    LibrariesPath=`pwd`
 
     git clone https://github.com/desktop-app/patches.git
     cd patches
@@ -69,10 +68,10 @@ Go to ***BuildPath*** and run
     sudo make install
     cd ..
 
-    git clone https://github.com/openssl/openssl
-    cd openssl
-    git checkout OpenSSL_1_0_1-stable
-    ./Configure darwin64-x86_64-cc -static -mmacosx-version-min=10.10
+    git clone https://github.com/openssl/openssl openssl_1_1_1
+    cd openssl_1_1_1
+    git checkout OpenSSL_1_1_1-stable
+    ./Configure --prefix=/usr/local/macos no-tests darwin64-x86_64-cc -static $MIN_VER
     make build_libs $MAKE_THREADS_CNT
     cd ..
 
@@ -246,6 +245,21 @@ Go to ***BuildPath*** and run
     sudo make install
     cd ..
 
+    git clone https://github.com/desktop-app/tg_owt.git
+    cd tg_owt
+    mkdir out
+    cd out
+    mkdir Debug
+    cd Debug
+    cmake -G Ninja -DCMAKE_BUILD_TYPE=Debug -DTG_OWT_SPECIAL_TARGET=osx -DTG_OWT_LIBJPEG_INCLUDE_PATH=`pwd`/../../../qt5_6_2/qtbase/src/3rdparty/libjpeg -DTG_OWT_OPENSSL_INCLUDE_PATH=`pwd`/../../../openssl_1_1_1/include -DTG_OWT_OPUS_INCLUDE_PATH=/usr/local/include/opus -DTG_OWT_FFMPEG_INCLUDE_PATH=`pwd`/../../../ffmpeg ../..
+    ninja
+    cd ..
+    mkdir Release
+    cd Release
+    cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -DTG_OWT_SPECIAL_TARGET=osx -DTG_OWT_LIBJPEG_INCLUDE_PATH=`pwd`/../../../qt5_6_2/qtbase/src/3rdparty/libjpeg -DTG_OWT_OPENSSL_INCLUDE_PATH=`pwd`/../../../openssl_1_1_1/include -DTG_OWT_OPUS_INCLUDE_PATH=/usr/local/include/opus -DTG_OWT_FFMPEG_INCLUDE_PATH=`pwd`/../../../ffmpeg ../..
+    ninja
+    cd ..\..
+
 ### Building the project
 
 Go to ***BuildPath*/tdesktop/Telegram** and run (using [your **api_id** and **api_hash**](#obtain-your-api-credentials))
diff --git a/docs/building-xcode.md b/docs/building-xcode.md
index c63093e5a6..1d4f1c2818 100644
--- a/docs/building-xcode.md
+++ b/docs/building-xcode.md
@@ -43,7 +43,6 @@ Go to ***BuildPath*** and run
 
     mkdir -p Libraries/macos
     cd Libraries/macos
-    LibrariesPath=`pwd`
 
     git clone https://github.com/desktop-app/patches.git
     cd patches
@@ -252,22 +251,6 @@ Go to ***BuildPath*** and run
     find ../../patches/qtbase_5_12_8 -type f -print0 | sort -z | xargs -0 git apply
     cd ..
 
-    LibrariesPath=`pwd`
-    git clone https://github.com/desktop-app/tg_owt.git
-    cd tg_owt
-    mkdir out
-    cd out
-    mkdir Debug
-    cd Debug
-    cmake -G Ninja -DCMAKE_BUILD_TYPE=Debug -DTG_OWT_SPECIAL_TARGET=mac -DTG_OWT_LIBJPEG_INCLUDE_PATH=$LibrariesPath/qt_5_12_8/qtbase/src/3rdparty/libjpeg -DTG_OWT_OPENSSL_INCLUDE_PATH=$LibrariesPath/openssl_1_1_1/include -DTG_OWT_OPUS_INCLUDE_PATH=/usr/local/macos/include/opus -DTG_OWT_FFMPEG_INCLUDE_PATH=/usr/local/macos/include ../..
-    ninja
-    cd ..
-    mkdir Release
-    cd Release
-    cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -DTG_OWT_SPECIAL_TARGET=mac -DTG_OWT_LIBJPEG_INCLUDE_PATH=$LibrariesPath/qt_5_12_8/qtbase/src/3rdparty/libjpeg -DTG_OWT_OPENSSL_INCLUDE_PATH=$LibrariesPath/openssl_1_1_1/include -DTG_OWT_OPUS_INCLUDE_PATH=/usr/local/macos/include/opus -DTG_OWT_FFMPEG_INCLUDE_PATH=/usr/local/macos/include ../..
-    ninja
-    cd ..\..
-
     ./configure -prefix "/usr/local/desktop-app/Qt-5.12.8" \
     -debug-and-release \
     -force-debug-info \
@@ -285,27 +268,20 @@ Go to ***BuildPath*** and run
     sudo make install
     cd ..
 
-    git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git
-    export PATH=`pwd`/depot_tools:$PATH
-
-    mkdir webrtc
-    cd webrtc
-    cp ../patches/webrtc/.gclient ./
-    git clone https://github.com/open-webrtc-toolkit/owt-deps-webrtc src
-    gclient sync --no-history
-    cd src
-    git apply ../../patches/webrtc/src.diff
-    cd build
-    git apply ../../../patches/webrtc/build.diff
-    cd ../third_party
-    git apply ../../../patches/webrtc/third_party.diff
-    cd libsrtp
-    git apply ../../../../patches/webrtc/libsrtp.diff
-    cd ../..
-    ../../patches/webrtc/configure.sh
-    ninja -C out/Debug webrtc
-    ninja -C out/Release webrtc
-    cd ../..
+    git clone https://github.com/desktop-app/tg_owt.git
+    cd tg_owt
+    mkdir out
+    cd out
+    mkdir Debug
+    cd Debug
+    cmake -G Ninja -DCMAKE_BUILD_TYPE=Debug -DTG_OWT_SPECIAL_TARGET=mac -DTG_OWT_LIBJPEG_INCLUDE_PATH=`pwd`/../../../qt_5_12_8/qtbase/src/3rdparty/libjpeg -DTG_OWT_OPENSSL_INCLUDE_PATH=`pwd`/../../../openssl_1_1_1/include -DTG_OWT_OPUS_INCLUDE_PATH=/usr/local/macos/include/opus -DTG_OWT_FFMPEG_INCLUDE_PATH=/usr/local/macos/include ../..
+    ninja
+    cd ..
+    mkdir Release
+    cd Release
+    cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -DTG_OWT_SPECIAL_TARGET=mac -DTG_OWT_LIBJPEG_INCLUDE_PATH=`pwd`/../../../qt_5_12_8/qtbase/src/3rdparty/libjpeg -DTG_OWT_OPENSSL_INCLUDE_PATH=`pwd`/../../../openssl_1_1_1/include -DTG_OWT_OPUS_INCLUDE_PATH=/usr/local/macos/include/opus -DTG_OWT_FFMPEG_INCLUDE_PATH=/usr/local/macos/include ../..
+    ninja
+    cd ..\..
 
 ### Building the project