diff --git a/misc/pbs3-upgrade.sh b/misc/pbs3-upgrade.sh
new file mode 100644
index 00000000..eb519ab9
--- /dev/null
+++ b/misc/pbs3-upgrade.sh
@@ -0,0 +1,172 @@
+#!/usr/bin/env bash
+
+# Copyright (c) 2021-2023 tteck
+# Author: tteck (tteckster)
+# License: MIT
+# https://github.com/tteck/Proxmox/raw/main/LICENSE
+
+header_info() {
+  clear
+  cat <<"EOF"
+    ____  ____ __________    __  ______  __________  ___    ____  ______
+   / __ \/ __ ) ___/__  /   / / / / __ \/ ____/ __ \/   |  / __ \/ ____/
+  / /_/ / __  \__ \ /_ <   / / / / /_/ / / __/ /_/ / /| | / / / / __/
+ / ____/ /_/ /__/ /__/ /  / /_/ / ____/ /_/ / _, _/ ___ |/ /_/ / /___
+/_/   /_____/____/____/   \____/_/    \____/_/ |_/_/  |_/_____/_____/
+
+EOF
+}
+
+RD=$(echo "\033[01;31m")
+YW=$(echo "\033[33m")
+GN=$(echo "\033[1;92m")
+CL=$(echo "\033[m")
+BFR="\\r\\033[K"
+HOLD="-"
+CM="${GN}✓${CL}"
+CROSS="${RD}✗${CL}"
+
+set -euo pipefail
+shopt -s inherit_errexit nullglob
+
+msg_info() {
+  local msg="$1"
+  echo -ne " ${HOLD} ${YW}${msg}..."
+}
+
+msg_ok() {
+  local msg="$1"
+  echo -e "${BFR} ${CM} ${GN}${msg}${CL}"
+}
+
+msg_error() {
+  local msg="$1"
+  echo -e "${BFR} ${CROSS} ${RD}${msg}${CL}"
+}
+
+
+start_routines() {
+  header_info
+  CHOICE=$(whiptail --title "PBS 2 BACKUP" --menu "\nMake a backup of /etc/proxmox-backup to ensure that in the worst case, any relevant configuration can be recovered?" 11 58 2 \
+    "yes" " " \
+    "no" " " 3>&2 2>&1 1>&3)
+  case $CHOICE in
+  yes)
+    msg_info "Backing up Proxmox Backup Server 2"
+    tar czf "pbs2-etc-backup-$(date -I).tar.gz" -C "/etc" "proxmox-backup"
+    msg_ok "Backed up to Proxmox Backup Server"
+    ;;
+  no)
+    msg_error "Selected no to Backing up Proxmox Backup Server 2"
+    ;;
+  esac
+
+  CHOICE=$(whiptail --title "PBS 3 SOURCES" --menu "This will set the correct sources to update and install Proxmox Backup Server 3.\n \nChange to Proxmox Backup Server 3 sources?" 14 58 2 \
+    "yes" " " \
+    "no" " " 3>&2 2>&1 1>&3)
+  case $CHOICE in
+  yes)
+    msg_info "Changing to Proxmox Backup Server 3 Sources"
+    cat <<EOF >/etc/apt/sources.list
+deb http://deb.debian.org/debian bookworm main contrib
+deb http://deb.debian.org/debian bookworm-updates main contrib
+deb http://security.debian.org/debian-security bookworm-security main contrib
+EOF
+    msg_ok "Changed to Proxmox Backup Server 3 Sources"
+    ;;
+  no)
+    msg_error "Selected no to Correcting Proxmox Backup Server 3 Sources"
+    ;;
+  esac
+
+  CHOICE=$(whiptail --title "PBS3-ENTERPRISE" --menu "The 'pbs-enterprise' repository is only available to users who have purchased a Proxmox VE subscription.\n \nDisable 'pbs-enterprise' repository?" 14 58 2 \
+    "yes" " " \
+    "no" " " 3>&2 2>&1 1>&3)
+  case $CHOICE in
+  yes)
+    msg_info "Disabling 'pbs-enterprise' repository"
+    cat <<EOF >/etc/apt/sources.list.d/pbs-enterprise.list
+# deb https://enterprise.proxmox.com/debian/pbs bookworm pbs-enterprise
+EOF
+    msg_ok "Disabled 'pbs-enterprise' repository"
+    ;;
+  no)
+    msg_error "Selected no to Disabling 'pbs-enterprise' repository"
+    ;;
+  esac
+
+  CHOICE=$(whiptail --title "PBS3-NO-SUBSCRIPTION" --menu "The 'pbs-no-subscription' repository provides access to all of the open-source components of Proxmox Backup Server.\n \nEnable 'pbs-no-subscription' repository?" 14 58 2 \
+    "yes" " " \
+    "no" " " 3>&2 2>&1 1>&3)
+  case $CHOICE in
+  yes)
+    msg_info "Enabling 'pbs-no-subscription' repository"
+    cat <<EOF >/etc/apt/sources.list.d/pbs-install-repo.list
+deb http://download.proxmox.com/debian/pbs bookworm pbs-no-subscription
+EOF
+    msg_ok "Enabled 'pbs-no-subscription' repository"
+    ;;
+  no)
+    msg_error "Selected no to Enabling 'pbs-no-subscription' repository"
+    ;;
+  esac
+
+  CHOICE=$(whiptail --title "PBS3 TEST" --menu "The 'pbstest' repository can give advanced users access to new features and updates before they are officially released.\n \nAdd (Disabled) 'pbstest' repository?" 14 58 2 \
+    "yes" " " \
+    "no" " " 3>&2 2>&1 1>&3)
+  case $CHOICE in
+  yes)
+    msg_info "Adding 'pbstest' repository and set disabled"
+    cat <<EOF >/etc/apt/sources.list.d/pbstest-for-beta.list
+# deb http://download.proxmox.com/debian/pbs bookworm pbstest
+EOF
+    msg_ok "Added 'pbstest' repository"
+    ;;
+  no)
+    msg_error "Selected no to Adding 'pbstest' repository"
+    ;;
+  esac
+
+  CHOICE=$(whiptail --title "PBS 3 UPDATE" --menu "\nUpdate to Proxmox Backup Server 3 now?" 11 58 2 \
+    "yes" " " \
+    "no" " " 3>&2 2>&1 1>&3)
+  case $CHOICE in
+  yes)
+    msg_info "Updating to Proxmox Backup Server 3 (Patience)"
+    apt-get update
+    DEBIAN_FRONTEND=noninteractive apt-get -o Dpkg::Options::="--force-confold" dist-upgrade -y
+    msg_ok "Updated to Proxmox Backup Server 3"
+    ;;
+  no)
+    msg_error "Selected no to Updating to Proxmox Backup Server 3"
+    ;;
+  esac
+
+  CHOICE=$(whiptail --title "REBOOT" --menu "\nReboot Proxmox Backup Server 3 now? (recommended)" 11 58 2 \
+    "yes" " " \
+    "no" " " 3>&2 2>&1 1>&3)
+  case $CHOICE in
+  yes)
+    msg_info "Rebooting Proxmox Backup Server 3"
+    sleep 2
+    msg_ok "Completed Install Routines"
+    reboot
+    ;;
+  no)
+    msg_error "Selected no to Rebooting Proxmox Backup Server 3 (Reboot recommended)"
+    msg_ok "Completed Install Routines"
+    ;;
+  esac
+}
+
+header_info
+while true; do
+  read -p "Start the Update to Proxmox Backup Server 3 Script (y/n)?" yn
+  case $yn in
+  [Yy]*) break ;;
+  [Nn]*) clear; exit ;;
+  *) echo "Please answer yes or no." ;;
+  esac
+done
+
+start_routines