diff --git a/.spelling b/.spelling
index ee4262fbdd5..4df10c3fb88 100644
--- a/.spelling
+++ b/.spelling
@@ -1115,3 +1115,8 @@ NTLM
 NumberBytes
 ResponseHeaders
 #endregion
+includeide
+interactivetesting
+allowprerelease
+prereleases
+url
diff --git a/tools/install-powershell-readme.md b/tools/install-powershell-readme.md
index 08c7bddfdac..73109c151f1 100644
--- a/tools/install-powershell-readme.md
+++ b/tools/install-powershell-readme.md
@@ -19,6 +19,13 @@
 * native package manager available
 * `curl` (auto-installed if missing)
 
+## Parameters
+
+* -includeide - installs vscode and vscode powershell extension (only relevant to machines with desktop environment)
+* -interactivetesting - do a quick launch test of vscode - only relevant when used with -includeide
+* -skip-sudo-check - use sudo without verifying it's availability (hard to accurately do on some distros)
+* -allowprerelease - includes prereleases of powershell core when selection allows this.  Repository based installs take the latest on the repo url regardless of this switch.
+
 ## Usage
 
 ### Direct from Github
@@ -55,12 +62,6 @@ bash <(wget -O - https://raw.githubusercontent.com/PowerShell/PowerShell/master/
 bash <(wget -O - https://raw.githubusercontent.com/PowerShell/PowerShell/master/tools/install-powershell.sh) -includeide -interactivetesting
 ```
 
-### Install AppImage
-
-```bash
-bash <(wget -O - https://raw.githubusercontent.com/PowerShell/PowerShell/master/tools/install-powershell.sh) -appimage
-```
-
 ### Installation To do list
 
-* Detect and wait when package manager is busy/locked? - at least Ubuntu (CentOS does this internally)
\ No newline at end of file
+* Detect and wait when package manager is busy/locked? - at least Ubuntu (CentOS does this internally)
diff --git a/tools/install-powershell.sh b/tools/install-powershell.sh
index 26114ee5f65..2e6991417c4 100755
--- a/tools/install-powershell.sh
+++ b/tools/install-powershell.sh
@@ -22,7 +22,7 @@ install(){
 
     #gitrepo paths are overrideable to run from your own fork or branch for testing or private distribution
 
-    local VERSION="1.1.1"
+    local VERSION="1.2.0"
     local gitreposubpath="PowerShell/PowerShell/master"
     local gitreposcriptroot="https://raw.githubusercontent.com/$gitreposubpath/tools"
     local gitscriptname="install-powershell.psh"
diff --git a/tools/installpsh-amazonlinux.sh b/tools/installpsh-amazonlinux.sh
index aa7066643fd..8aa3d69b2a9 100644
--- a/tools/installpsh-amazonlinux.sh
+++ b/tools/installpsh-amazonlinux.sh
@@ -18,7 +18,7 @@
 #gitrepo paths are overrideable to run from your own fork or branch for testing or private distribution
 
 
-VERSION="1.1.2"
+VERSION="1.2.0"
 gitreposubpath="PowerShell/PowerShell/master"
 gitreposcriptroot="https://raw.githubusercontent.com/$gitreposubpath/tools"
 thisinstallerdistro=amazonlinux
@@ -120,19 +120,20 @@ fi
 
 ## Check requirements and prerequisites
 
-#Only do SUDO if we are not root
-SUDO=''
-if (( $EUID != 0 )); then
-    SUDO='sudo'
+#Check for sudo if not root
+if [[ "${CI}" == "true" ]]; then
+    echo "Running on CI (as determined by env var CI set to true), skipping SUDO check."
+    set -- "$@" '-skip-sudo-check'
 fi
 
-#Check that sudo is available
-if [[ "$SUDO" -eq "sudo" ]]; then
-
-    $SUDO -v
-    if [ $? -ne 0 ]; then
-      echo "ERROR: You must either be root or be able to use sudo" >&2
-      exit 5
+SUDO=''
+if (( $EUID != 0 )); then
+    #Check that sudo is available
+    if [[ ("'$*'" =~ skip-sudo-check) && ("$(whereis sudo)" == *'/'* && "$(sudo -nv 2>&1)" != 'Sorry, user'*) ]]; then
+        SUDO='sudo'
+    else
+        echo "ERROR: You must either be root or be able to use sudo" >&2
+        #exit 5
     fi
 fi
 
@@ -155,7 +156,17 @@ $SUDO yum install -y \
 
 echo
 echo "*** Installing PowerShell Core for $DistroBasedOn..."
-release=`curl https://api.github.com/repos/powershell/powershell/releases/latest | sed '/tag_name/!d' | sed s/\"tag_name\"://g | sed s/\"//g | sed s/v// | sed s/,//g | sed s/\ //g`
+
+echo "ATTENTION: As of version 1.2.0 this script no longer uses pre-releases unless the '-allowprereleases' switch is used"
+
+if [[ "'$*'" =~ allowprerelease ]] ; then
+    echo
+    echo "-allowprerelease was used, prereleases will be included in the retrieval of the latest version"
+    release=`curl https://api.github.com/repos/powershell/powershell/releases/latest | sed '/tag_name/!d' | sed s/\"tag_name\"://g | sed s/\"//g | sed s/v// | sed s/,//g | sed s/\ //g`
+else
+    echo "Finding the latest release production release"
+    release=$(curl https://api.github.com/repos/PowerShell/PowerShell/releases | grep -Po '"tag_name":(\d*?,|.*?[^\\]",)' | grep -Po '\d+.\d+.\d+[\da-z.-]*' | grep -v '[a-z]' | sort | tail -n1)
+if
 
 #DIRECT DOWNLOAD
 pwshlink=/usr/bin/pwsh
@@ -210,7 +221,7 @@ fi
 
 if [[ "'$*'" =~ -interactivetesting ]] ; then
     echo
-    echo "Amazon Linux does not have a desktop manager to support vscode, ignoring -includeide"
+    echo "Amazon Linux does not have a desktop manager to support vscode, ignoring -interactivetesting"
 fi
 
 if [[ "$repobased" == true ]] ; then
diff --git a/tools/installpsh-debian.sh b/tools/installpsh-debian.sh
index 857bb9f64d9..b763e45b0d8 100755
--- a/tools/installpsh-debian.sh
+++ b/tools/installpsh-debian.sh
@@ -18,7 +18,7 @@
 
 #gitrepo paths are overrideable to run from your own fork or branch for testing or private distribution
 
-VERSION="1.1.2"
+VERSION="1.2.0"
 gitreposubpath="PowerShell/PowerShell/master"
 gitreposcriptroot="https://raw.githubusercontent.com/$gitreposubpath/tools"
 thisinstallerdistro=debian
@@ -87,19 +87,20 @@ fi
 
 ## Check requirements and prerequisites
 
-#Only do SUDO if we are not root
-SUDO=''
-if (( $EUID != 0 )); then
-    SUDO='sudo'
+#Check for sudo if not root
+if [[ "${CI}" == "true" ]]; then
+    echo "Running on CI (as determined by env var CI set to true), skipping SUDO check."
+    set -- "$@" '-skip-sudo-check'
 fi
 
-#Check that sudo is available
-if [[ "$SUDO" == "sudo" && ! ("'$*'" =~ skip-sudo-check) ]]; then
-
-    $SUDO -v
-    if [ $? -ne 0 ]; then
-      echo "ERROR: You must either be root or be able to use sudo" >&2
-      exit 5
+SUDO=''
+if (( $EUID != 0 )); then
+    #Check that sudo is available
+    if [[ ("'$*'" =~ skip-sudo-check) && ("$(whereis sudo)" == *'/'* && "$(sudo -nv 2>&1)" != 'Sorry, user'*) ]]; then
+        SUDO='sudo'
+    else
+        echo "ERROR: You must either be root or be able to use sudo" >&2
+        #exit 5
     fi
 fi
 
@@ -120,6 +121,12 @@ if ! hash curl 2>/dev/null; then
     echo "curl not found, installing..."
     $SUDO apt-get install -y curl
 fi
+
+if [[ "'$*'" =~ allowprerelease ]] ; then
+    echo
+    echo "-allowprerelease was used, but since $DistroBasedOn uses repositories - selection of releases will depend on the repository contents."
+fi
+
 release=`curl https://api.github.com/repos/powershell/powershell/releases/latest | sed '/tag_name/!d' | sed s/\"tag_name\"://g | sed s/\"//g | sed s/v// | sed s/,//g | sed s/\ //g`
 
 echo "*** Current version on git is: $currentversion, repo version may differ slightly..."
@@ -188,12 +195,11 @@ if [[ "'$*'" =~ includeide ]] ; then
     echo
     echo "*** Installing VS Code PowerShell Extension"
     code --install-extension ms-vscode.PowerShell
-fi
-
-if [[ "'$*'" =~ -interactivetesting ]] ; then
-    echo "*** Loading test code in VS Code"
-    curl -O ./testpowershell.ps1 https://raw.githubusercontent.com/DarwinJS/CloudyWindowsAutomationCode/master/pshcoredevenv/testpowershell.ps1
-    code ./testpowershell.ps1
+    if [[ "'$*'" =~ -interactivetesting ]] ; then
+        echo "*** Loading test code in VS Code"
+        curl -O ./testpowershell.ps1 https://raw.githubusercontent.com/DarwinJS/CloudyWindowsAutomationCode/master/pshcoredevenv/testpowershell.ps1
+        code ./testpowershell.ps1
+    fi
 fi
 
 if [[ "$repobased" == true ]] ; then
diff --git a/tools/installpsh-osx.sh b/tools/installpsh-osx.sh
index 9bdc6035d5e..88f20086082 100755
--- a/tools/installpsh-osx.sh
+++ b/tools/installpsh-osx.sh
@@ -86,32 +86,12 @@ fi
 
 ## Check requirements and prerequisites
 
-#Only do SUDO if we are not root
-SUDO=''
-if (( $EUID != 0 )); then
-    SUDO='sudo'
-fi
-
-#Check that sudo is available
-#if [[ "$SUDO" -eq "sudo" ]]; then
-#    $SUDO -v
-#    if [ $? -ne 0 ]; then
-#      echo "ERROR: You must either be root or be able to use sudo" >&2
-#      exit 5
-#    fi
-#fi
-
-#END Collect any variation details if required for this distro
-
-#If there are known incompatible versions of this distro, put the test, message and script exit here:
-
-#END Verify The Installer Choice
-
-##END Check requirements and prerequisites
-
 echo "*** Installing PowerShell Core for $DistroBasedOn..."
 
-#release=`curl https://api.github.com/repos/powershell/powershell/releases/latest | sed '/tag_name/!d' | sed s/\"tag_name\"://g | sed s/\"//g | sed s/v// | sed s/,//g | sed s/\ //g`
+if [[ "'$*'" =~ allowprerelease ]] ; then
+    echo
+    echo "-allowprerelease was used, but since $DistroBasedOn uses repositories - selection of releases will depend on the repository contents."
+fi
 
 if ! hash brew 2>/dev/null; then
     echo "Homebrew is not found, installing..."
@@ -176,8 +156,14 @@ if [[ "'$*'" =~ includeide ]] ; then
 
     echo "*** Installing VS Code PowerShell Extension"
     code --install-extension ms-vscode.PowerShell
+    if [[ "'$*'" =~ -interactivetesting ]] ; then
+        echo "*** Loading test code in VS Code"
+        curl -O ./testpowershell.ps1 https://raw.githubusercontent.com/DarwinJS/CloudyWindowsAutomationCode/master/pshcoredevenv/testpowershell.ps1
+        code ./testpowershell.ps1
+    fi
 fi
 
+
 pwsh -noprofile -c '"Congratulations! PowerShell is installed at $PSHOME.
 Run `"pwsh`" to start a PowerShell session."'
 
@@ -188,12 +174,6 @@ if [[ "$success" != 0 ]]; then
     exit "$success"
 fi
 
-if [[ "'$*'" =~ -interactivetesting ]] ; then
-    echo "*** Loading test code in VS Code"
-    $SUDO curl -O ./testpowershell.ps1 https://raw.githubusercontent.com/DarwinJS/CloudyWindowsAutomationCode/master/pshcoredevenv/testpowershell.ps1
-    code ./testpowershell.ps1        
-fi
-
 if [[ "$repobased" == true ]] ; then
   echo "*** NOTE: Run your regular package manager update cycle to update PowerShell Core"
 fi
diff --git a/tools/installpsh-redhat.sh b/tools/installpsh-redhat.sh
index e581593a2c3..6449ffab639 100755
--- a/tools/installpsh-redhat.sh
+++ b/tools/installpsh-redhat.sh
@@ -19,7 +19,7 @@
 #gitrepo paths are overrideable to run from your own fork or branch for testing or private distribution
 
 
-VERSION="1.1.2"
+VERSION="1.2.0"
 gitreposubpath="PowerShell/PowerShell/master"
 gitreposcriptroot="https://raw.githubusercontent.com/$gitreposubpath/tools"
 thisinstallerdistro=redhat
@@ -90,33 +90,29 @@ fi
 
 ## Check requirements and prerequisites
 
-#Only do SUDO if we are not root
-SUDO=''
-if (( $EUID != 0 )); then
-    SUDO='sudo'
+#Check for sudo if not root
+if [[ "${CI}" == "true" ]]; then
+    echo "Running on CI (as determined by env var CI set to true), skipping SUDO check."
+    set -- "$@" '-skip-sudo-check'
 fi
 
-#Check that sudo is available
-if [[ "$SUDO" == "sudo" && ! ("'$*'" =~ skip-sudo-check) ]]; then
-
-    $SUDO -v
-    if [ $? -ne 0 ]; then
-      echo "ERROR: You must either be root or be able to use sudo" >&2
-      exit 5
+SUDO=''
+if (( $EUID != 0 )); then
+    #Check that sudo is available
+    if [[ ("'$*'" =~ skip-sudo-check) && ("$(whereis sudo)" == *'/'* && "$(sudo -nv 2>&1)" != 'Sorry, user'*) ]]; then
+        SUDO='sudo'
+    else
+        echo "ERROR: You must either be root or be able to use sudo" >&2
+        #exit 5
     fi
 fi
 
-#Collect any variation details if required for this distro
-
-#END Collect any variation details if required for this distro
-
-#If there are known incompatible versions of this distro, put the test, message and script exit here:
-
-#END Verify The Installer Choice
-
-##END Check requirements and prerequisites
+if [[ "'$*'" =~ allowprerelease ]] ; then
+    echo
+    echo "-allowprerelease was used, but since $DistroBasedOn uses repositories - selection of releases will depend on the repository contents."
+fi
 
-echo
+release=`curl https://api.github.com/repos/powershell/powershell/releases/latest | sed '/tag_name/!d' | sed s/\"tag_name\"://g | sed s/\"//g | sed s/v// | sed s/,//g | sed s/\ //g`echo
 echo "*** Installing PowerShell Core for $DistroBasedOn..."
 if ! hash curl 2>/dev/null; then
     echo "curl not found, installing..."
@@ -152,12 +148,11 @@ if [[ "'$*'" =~ includeide ]] ; then
     echo
     echo "*** Installing VS Code PowerShell Extension"
     code --install-extension ms-vscode.PowerShell
-fi
-
-if [[ "'$*'" =~ -interactivetesting ]] ; then
-    echo "*** Loading test code in VS Code"
-    curl -O ./testpowershell.ps1 https://raw.githubusercontent.com/DarwinJS/CloudyWindowsAutomationCode/master/pshcoredevenv/testpowershell.ps1
-    code ./testpowershell.ps1        
+    if [[ "'$*'" =~ -interactivetesting ]] ; then
+        echo "*** Loading test code in VS Code"
+        curl -O ./testpowershell.ps1 https://raw.githubusercontent.com/DarwinJS/CloudyWindowsAutomationCode/master/pshcoredevenv/testpowershell.ps1
+        code ./testpowershell.ps1
+    fi
 fi
 
 if [[ "$repobased" == true ]] ; then
diff --git a/tools/installpsh-suse.sh b/tools/installpsh-suse.sh
index b5bf82c9d33..0867cb6afc0 100755
--- a/tools/installpsh-suse.sh
+++ b/tools/installpsh-suse.sh
@@ -19,7 +19,7 @@
 #gitrepo paths are overrideable to run from your own fork or branch for testing or private distribution
 
 
-VERSION="1.1.2"
+VERSION="1.2.0"
 gitreposubpath="PowerShell/PowerShell/master"
 gitreposcriptroot="https://raw.githubusercontent.com/$gitreposubpath/tools"
 thisinstallerdistro=suse
@@ -88,19 +88,20 @@ fi
 
 ## Check requirements and prerequisites
 
-#Only do SUDO if we are not root
-SUDO=''
-if (( $EUID != 0 )); then
-    SUDO='sudo'
+#Check for sudo if not root
+if [[ "${CI}" == "true" ]]; then
+    echo "Running on CI (as determined by env var CI set to true), skipping SUDO check."
+    set -- "$@" '-skip-sudo-check'
 fi
 
-#Check that sudo is available
-if [[ "$SUDO" == "sudo" && ! ("'$*'" =~ skip-sudo-check) ]]; then
-
-    $SUDO -v
-    if [ $? -ne 0 ]; then
-      echo "ERROR: You must either be root or be able to use sudo" >&2
-      exit 5
+SUDO=''
+if (( $EUID != 0 )); then
+    #Check that sudo is available
+    if [[ ("'$*'" =~ skip-sudo-check) && ("$(whereis sudo)" == *'/'* && "$(sudo -nv 2>&1)" != 'Sorry, user'*) ]]; then
+        SUDO='sudo'
+    else
+        echo "ERROR: You must either be root or be able to use sudo" >&2
+        #exit 5
     fi
 fi
 
@@ -137,8 +138,17 @@ $SUDO zypper --non-interactive install \
 
 echo
 echo "*** Installing PowerShell Core for $DistroBasedOn..."
-release=`curl https://api.github.com/repos/powershell/powershell/releases/latest | sed '/tag_name/!d' | sed s/\"tag_name\"://g | sed s/\"//g | sed s/v// | sed s/,//g | sed s/\ //g`
 
+echo "ATTENTION: As of version 1.2.0 this script no longer uses pre-releases unless the '-allowprereleases' switch is used"
+
+if [[ "'$*'" =~ allowprerelease ]] ; then
+    echo
+    echo "-allowprerelease was used, prereleases will be included in the retrieval of the latest version"
+    release=`curl https://api.github.com/repos/powershell/powershell/releases/latest | sed '/tag_name/!d' | sed s/\"tag_name\"://g | sed s/\"//g | sed s/v// | sed s/,//g | sed s/\ //g`
+else
+    echo "Finding the latest release production release"
+    release=$(curl https://api.github.com/repos/PowerShell/PowerShell/releases | grep -Po '"tag_name":(\d*?,|.*?[^\\]",)' | grep -Po '\d+.\d+.\d+[\da-z.-]*' | grep -v '[a-z]' | sort | tail -n1)
+if
 #REPO BASED (Not ready yet)
 #echo "*** Setting up PowerShell Core repo..."
 #echo "*** Current version on git is: $release, repo version may differ slightly..."
@@ -208,13 +218,11 @@ if [[ "'$*'" =~ includeide ]] ; then
     echo
     echo "*** Installing VS Code PowerShell Extension"
     code --install-extension ms-vscode.PowerShell
-fi
-
-
-if [[ "'$*'" =~ -interactivetesting ]] ; then
-    echo "*** Loading test code in VS Code"
-    curl -O ./testpowershell.ps1 https://raw.githubusercontent.com/DarwinJS/CloudyWindowsAutomationCode/master/pshcoredevenv/testpowershell.ps1
-    code ./testpowershell.ps1        
+    if [[ "'$*'" =~ -interactivetesting ]] ; then
+        echo "*** Loading test code in VS Code"
+        curl -O ./testpowershell.ps1 https://raw.githubusercontent.com/DarwinJS/CloudyWindowsAutomationCode/master/pshcoredevenv/testpowershell.ps1
+        code ./testpowershell.ps1
+    fi
 fi
 
 if [[ "$repobased" == true ]] ; then