diff --git a/.github/workflows/workflow.yml b/.github/workflows/workflow.yml
index 5c1c77c3..0a24ea69 100644
--- a/.github/workflows/workflow.yml
+++ b/.github/workflows/workflow.yml
@@ -8,7 +8,7 @@ jobs:
       max-parallel: 6
       matrix:
         operating-system: [ubuntu-latest, windows-latest, macOS-latest]
-        php-versions: ['5.6', '7.0', '7.1', '7.2', '7.3', '7.4']
+        php-versions: ['5.6', '7.0', '7.1', '7.2', '7.3']
     steps:
     - name: Checkout
       uses: actions/checkout@master
diff --git a/README.md b/README.md
index f29b0119..e37cda68 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@
 - 7.1
 - 7.2
 - 7.3
-- 7.4 `7.4.0beta4` on `ubuntu`, and `7.4.0RC1` on `windows` and `macOS`
+- 7.4 `7.4.0beta4` on `ubuntu`, and `7.4.0RC2` on `windows` and `macOS`
 
 **Note:** PHP 7.4 is currently in development, do not use in production.
 
diff --git a/src/7.4.sh b/src/7.4.sh
index 3ccdda20..01c531b7 100644
--- a/src/7.4.sh
+++ b/src/7.4.sh
@@ -41,8 +41,8 @@ sudo mkdir -p /opt/phpbrew
 phpbrew init --root=/opt/phpbrew
 echo "[[ -e ~/.phpbrew/bashrc ]] && source ~/.phpbrew/bashrc" >> ~/.bashrc
 source ~/.bashrc
-phpbrew install -j 10 7.4.0RC1 +default +bz2="$(brew --prefix bzip2)" +zlib="$(brew --prefix zlib)" -openssl --  --with-libxml
-phpbrew switch php-7.4.0RC1 >> /dev/null
+phpbrew install -j 10 7.4.0RC2 +default +bz2="$(brew --prefix bzip2)" +zlib="$(brew --prefix zlib)" -openssl --  --with-libxml
+phpbrew switch php-7.4.0RC2 >> /dev/null
 sudo mkdir -p /usr/local/bin
-sudo ln -sf /Users/runner/.phpbrew/php/php-7.4.0RC1/bin/php /usr/local/bin/php
+sudo ln -sf /Users/runner/.phpbrew/php/php-7.4.0RC2/bin/php /usr/local/bin/php
 brew install composer
\ No newline at end of file
diff --git a/src/darwin.sh b/src/darwin.sh
index 98c96369..b4c3b0c9 100644
--- a/src/darwin.sh
+++ b/src/darwin.sh
@@ -1,8 +1,11 @@
-echo $1
-brew unlink php
-brew tap exolnet/homebrew-deprecated
-brew install php@$1
-brew link --force --overwrite php@$1
+version=$(php-config --version | cut -c 1-3)
+if [ "$version" != "$1" ]; then
+	brew tap exolnet/homebrew-deprecated;
+	brew unlink php;
+	brew install php@$1;
+	brew link --force --overwrite php@$1;
+fi
+
 curl -sS https://getcomposer.org/installer | php
 chmod +x composer.phar
 mv composer.phar /usr/local/bin/composer
diff --git a/src/linux.sh b/src/linux.sh
index eaa636d5..bdc88e4e 100644
--- a/src/linux.sh
+++ b/src/linux.sh
@@ -1,10 +1,26 @@
-sudo add-apt-repository ppa:ondrej/php -y
-sudo apt update -y
-sudo mkdir -p /run/php
-sudo apt install -y php$1 curl
-sudo apt autoremove -y
-sudo update-alternatives --set php /usr/bin/php$1
-sudo curl -s https://getcomposer.org/installer | php
-sudo mv composer.phar /usr/local/bin/composer
+ua()
+{	
+	for tool in php phar phar.phar php-cgi php-config phpize; do
+		if [ -e "/usr/bin/$tool$version" ]; then
+			sudo update-alternatives --set $tool /usr/bin/$tool$1;
+		fi
+	done
+}
+
+version=$(php-config --version | cut -c 1-3)
+if [ "$version" != "$1" ]; then
+	if [ ! -e "/usr/bin/php$1" ]; then
+		sudo add-apt-repository ppa:ondrej/php -y
+		sudo apt update -y		
+		sudo apt install -y php$1 curl;
+		sudo apt autoremove -y;		
+	fi
+	ua $1;
+fi	
+
+if [ ! -e "/usr/bin/composer" ]; then
+	sudo curl -s https://getcomposer.org/installer | php;
+	sudo mv composer.phar /usr/local/bin/composer;
+fi
 php -v
 composer -V
\ No newline at end of file
diff --git a/src/windows.ps1 b/src/windows.ps1
index b093b70c..ef740862 100644
--- a/src/windows.ps1
+++ b/src/windows.ps1
@@ -3,37 +3,44 @@ param (
 )
 
 if($version -eq '7.4') {
-	$version = '7.4RC1'
+	$version = '7.4RC'
 }
-
 echo "Installing NuGet"
 Install-PackageProvider -Name NuGet -MinimumVersion 2.8.5.201 -Force
-if($version -lt '7.0') {
-  echo "Installing Visual C++"
-  Install-Module -Name VcRedist -Force
-  New-Item -Path C:\Temp\VcRedist -ItemType Directory
-  Get-VcList | Save-VcRedist -Path C:\Temp\VcRedist
-  $VcList = Get-VcList
-  Install-VcRedist -Path C:\Temp\VcRedist -VcList $VcList -Silent
-}
 echo "Installing PhpManager"
 Install-Module -Name PhpManager -Force -Scope CurrentUser
-echo "Installing PHP"
-Uninstall-Php C:\tools\php
-Install-Php -Version $version -Architecture x86 -ThreadSafe $true -Path C:\tools\php$version -TimeZone UTC -InitialPhpIni Production
-echo "Switch PHP"
-(Get-PhpSwitcher).targets
-Initialize-PhpSwitcher -Alias C:\tools\php -Scope CurrentUser -Force
-Add-PhpToSwitcher -Name $version -Path C:\tools\php$version -Force
-Switch-Php $version -Force
-echo "Housekeeping in PHP.ini, enabling openssl"
-Add-Content C:\tools\php$version\php.ini "date.timezone = 'UTC'"
-Set-PhpIniKey extension_dir C:\tools\php$version\ext
-if($version -lt '7.4') {
-	Enable-PhpExtension openssl
-} else {
-	Add-Content C:\tools\php$version\php.ini "extension=php_openssl.dll"
+
+$installed = php -v | grep ^PHP | cut -c 5-7
+echo $installed
+echo $version
+if($installed -ne $version) {
+  if($version -lt '7.0') {
+    echo "Installing Visual C++"
+    Install-Module -Name VcRedist -Force
+    New-Item -Path C:\Temp\VcRedist -ItemType Directory
+    Get-VcList | Save-VcRedist -Path C:\Temp\VcRedist
+    $VcList = Get-VcList
+    Install-VcRedist -Path C:\Temp\VcRedist -VcList $VcList -Silent
+  }
+
+  echo "Installing PHP"
+  Uninstall-Php C:\tools\php
+  Install-Php -Version $version -Architecture x86 -ThreadSafe $true -Path C:\tools\php$version -TimeZone UTC -InitialPhpIni Production
+  echo "Switch PHP"
+  (Get-PhpSwitcher).targets
+  Initialize-PhpSwitcher -Alias C:\tools\php -Scope CurrentUser -Force
+  Add-PhpToSwitcher -Name $version -Path C:\tools\php$version -Force
+  Switch-Php $version -Force
+  echo "Housekeeping in PHP.ini, enabling openssl"
+  Add-Content C:\tools\php$version\php.ini "date.timezone = 'UTC'"
+  Set-PhpIniKey extension_dir C:\tools\php$version\ext
+  if($version -lt '7.4') {
+  	Enable-PhpExtension openssl
+  } else {
+  	Add-Content C:\tools\php$version\php.ini "extension=php_openssl.dll"
+  }
 }
+
 echo "Installing Composer"
 Install-Composer -Scope System -Path C:\tools\php
 php -v