diff --git a/AppendCMS.sh b/AppendCMS.sh
index b9385f9..15d203c 100644
--- a/AppendCMS.sh
+++ b/AppendCMS.sh
@@ -6,6 +6,7 @@
 ###############################
 
 itype=AddCMS
+ScriptCompat=2
 
 ##-----------------##
 #   Fetching Vars   #
@@ -15,6 +16,8 @@ if [ ! -f "/etc/ICTM/selopts.list" ] || [ ! -f "/etc/ICTM/mainvar.list" ] ; then
 
 source /etc/ICTM/selopts.list
 source /etc/ICTM/mainvar.list
+if [ "$CompatVer" -lt "$ScriptCompat" ]; then   echo "Web-V2 is outdated, Please run the Compat-V*.sh updater from the repo, Current version= $CompatVer" && exit ; fi
+
 if [ -z $shortdist ] ; then source <(curl --retry 7 --retry-delay 5 -s "$repo"/raw/"$branchtype"/"$branch"/Scripts/MicroOSDetect.sh) ; fi
 if [ $webserv != nginx_nonphp ]; then
     if [ ! -f "/etc/ICTM/phpvar.list" ] ; then bash <(curl --retry 7 --retry-delay 5 -s "$repo"/raw/"$branchtype"/"$branch"/Scripts/GeneratePhplist.sh) ; fi
diff --git a/AppendModule.sh b/AppendModule.sh
index af2b03f..48a8acf 100644
--- a/AppendModule.sh
+++ b/AppendModule.sh
@@ -6,6 +6,7 @@
 ###############################
 
 itype=AddMod
+ScriptCompat=2
 
 ##-----------------##
 #   Fetching Vars   #
@@ -15,6 +16,8 @@ if [ ! -f "/etc/ICTM/selopts.list" ] || [ ! -f "/etc/ICTM/mainvar.list" ] ; then
 
 source /etc/ICTM/selopts.list
 source /etc/ICTM/mainvar.list
+if [ "$CompatVer" -lt "$ScriptCompat" ]; then   echo "Web-V2 is outdated, Please run the Compat-V*.sh updater from the repo, Current version= $CompatVer" && exit ; fi
+
 if [ -z $shortdist ] ; then source <(curl --retry 7 --retry-delay 5 -s "$repo"/raw/"$branchtype"/"$branch"/Scripts/MicroOSDetect.sh) ; fi
 if [ $webserv != nginx_nonphp ]; then
     if [ ! -f "/etc/ICTM/phpvar.list" ] ; then bash <(curl --retry 7 --retry-delay 5 -s "$repo"/raw/"$branchtype"/"$branch"/Scripts/GeneratePhplist.sh) ; fi
diff --git a/Scripts/Compat/Compat-V2.sh b/Scripts/Compat/Compat-V2.sh
new file mode 100644
index 0000000..f1bc84a
--- /dev/null
+++ b/Scripts/Compat/Compat-V2.sh
@@ -0,0 +1,20 @@
+if [ ! -f "/etc/ICTM/selopts.list" ] || [ ! -f "/etc/ICTM/mainvar.list" ] ; then echo 'This system is not yet setup, please run the main installer first' && exit ; fi
+
+source /etc/ICTM/selopts.list
+source /etc/ICTM/mainvar.list
+
+source <(curl --retry 7 --retry-delay 5 -s "$repo"/raw/"$branchtype"/"$branch"/ModulesMenu.list)
+
+#Setting Menulist to webserver
+declare -n CMSL="$webserv"CMSL
+declare -n options="$webserv"Options
+
+#Updating mod lists
+option=$(whiptail --nocancel --title "Additional modules" --checklist "Please select enabled features" 11 74 5 "${options[@]}" 3>&1 1>&2 2>&3)
+aonoption="/MySQL/"
+aonoption="$aonoption /Unattended-Security-Updates/"
+aonoption="$aonoption /Backup-Util/"
+aonoption="$aonoption /AcmeSH/"
+echo 'SelectedOptions=('$option')' > /etc/ICTM/selopts.list
+echo 'EnabledAons=('$aonoption')' >> /etc/ICTM/selopts.list
+declare -p CompatVer | cut -d ' ' -f 3- >> /etc/ICTM/mainvar.list
\ No newline at end of file
diff --git a/installer.sh b/installer.sh
index ad2fc3b..aca61b5 100644
--- a/installer.sh
+++ b/installer.sh
@@ -32,6 +32,7 @@ fi
 repo=https://git.ictmaatwerk.com/VPS-scripts/Web-V2
 branch=PostfixTesting
 branchtype=branch #=branch for branch and =tag for release
+CompatVer=2
 #Installer-config
 phpver=7.4
 PHPMyadmin=1 #Overwriten by cms's without php
@@ -374,7 +375,7 @@ fi
 mkdir -p /etc/ICTM/sites
 echo "InstDate=$(date "+%d-%B-%Y")" >> /etc/ICTM/mainvar.list
 
-for storeme in PKGM PKGI PKGUC PKGUP PKGLIST OUTPUT IMODE shortdist repo branch branchtype webserv email shortdist hostname; do
+for storeme in PKGM PKGI PKGUC PKGUP PKGLIST OUTPUT IMODE shortdist repo branch branchtype webserv email shortdist hostname CompatVer; do
     declare -p $storeme | cut -d ' ' -f 3- >> /etc/ICTM/mainvar.list
 done