diff --git a/debian/changelog b/debian/changelog
index ad6a1cba..ab5ac978 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,15 @@
+livecd-rootfs (2.765.55) jammy; urgency=medium
+
+  [ Carlos Nihelton ]
+  [ Didier Roche-Tolomelli ]
+  * Adapt to new Microsoft package format: (LP: #2091293)
+    - Follows the same recipe already applied to Noble and later.
+    - Keep a single wsl rootfs upgrade policy
+    - Create livecd-roots tarball as a .wsl extension
+    - Create wsl-distribution.conf for WSL images
+
+ -- Carlos Nihelton <cnihelton@ubuntu.com>  Tue, 29 Apr 2025 17:33:15 -0300
+
 livecd-rootfs (2.765.54) jammy; urgency=medium
 
   * Add support for arm64+tegra-jetson flavor. (LP: #2091392)
diff --git a/live-build/ubuntu-wsl/hooks/01-distribution-conf.chroot b/live-build/ubuntu-wsl/hooks/01-distribution-conf.chroot
new file mode 100644
index 00000000..764867f7
--- /dev/null
+++ b/live-build/ubuntu-wsl/hooks/01-distribution-conf.chroot
@@ -0,0 +1,20 @@
+#!/bin/bash -eu
+# vi: ts=4 expandtab
+#
+#	Create wsl-distribution.conf for WSL setup
+#
+
+source /etc/os-release
+
+cat <<EOF >/etc/wsl-distribution.conf
+[oobe]
+command = /usr/lib/wsl/wsl-setup
+defaultUid = 1000
+defaultName = ${NAME}-${VERSION_ID}
+
+[shortcut]
+icon = /usr/share/wsl/ubuntu.ico
+
+[windowsterminal]
+ProfileTemplate = /usr/share/wsl/terminal-profile.json
+EOF
diff --git a/live-build/ubuntu-wsl/hooks/99-tar.binary b/live-build/ubuntu-wsl/hooks/99-tar.binary
index 56a39246..58c50efc 100755
--- a/live-build/ubuntu-wsl/hooks/99-tar.binary
+++ b/live-build/ubuntu-wsl/hooks/99-tar.binary
@@ -16,102 +16,10 @@ esac
 setfattr -x system.posix_acl_access chroot/var/log/journal
 setfattr -x system.posix_acl_default chroot/var/log/journal
 
-# is_lts returns true if the given release is a LTS.
-is_lts() {
-    release_version="$1"
-    year=$(echo "${release_version}" | cut -d'.' -f1)
-    month=$(echo "${release_version}" | cut -d'.' -f2)
-
-    if [ "${month}" != "04" ]; then
-        echo "false"
-        return
-    fi
-
-    last_year_digit="${year: -1}"
-    if [ $((last_year_digit % 2)) -ne 0 ]; then
-        echo "false"
-        return
-    fi
-
-    echo "true"
-}
-
-# is_current_lts_release returns for a given lts release is we are in the year preceeding or 2 years succeeding a release.
-# Note that it will mark as "current" a lts release zeven if there is a next one released until the end of the +2 year.
-is_current_lts_release() {
-    release_version="$1"
-    current_year="$2"
-    year=$(echo "$release_version" | cut -d'.' -f1)
-
-    if [ $(is_lts "${version}") != "true" ]; then
-        echo "false"
-        return
-    fi
-
-    if [ "$((year - 1))" -le "${current_year}" ] && [ "${current_year}" -le "$((year + 2))" ]; then
-        echo "true"
-        return
-    fi
-
-    echo "false"
-}
-
-# Function to check if a version is a development release
-is_development_release() {
-    local version=$1
-    local current_year=$2
-    local current_month=$3
-    local year=$(echo $version | cut -d. -f1)
-    local month=$(echo $version | cut -d. -f2)
-
-    if [ "${year}" -gt "${current_year}" ] || ([ "${year}" -eq "${current_year}" ] && [ "${month}" -gt "${current_month}" ]); then
-        echo "true"
-        return
-    fi
-
-    echo "false"
-}
-
-# create_archive_with_upgrade_policy modifies the prompting upgrade policy
-# and create a separate rootfs for this upgrade policy, named after app_id.
-# The reason not using just tar .. -C chroot . is that using '.' was found
-# not working once and checking if using the simpler command is safe needs
-# verification of the app installation on all Windows 10 builds we support
-# with WSL.
-create_archive_with_upgrade_policy() {
-    upgrade_policy=$1
-    app_id=$2
-
-    cd chroot
-    sed -i "s#Prompt=.*#Prompt=${upgrade_policy}#" ./etc/update-manager/release-upgrades
-    tar --xattrs --sort=name -czf ../livecd.ubuntu-wsl.${app_id}.rootfs.tar.gz *
-    cd ..
-}
-
-# release-upgrader configuration, 3 cases:
-# Ubuntu-Version: never
-# ubuntu (latest LTS): lts
-# preview (current dev): normal
-
-# We produce the following tar with this policy:
-# Any XY.04, where Y is pair: upgrade-never
-# Any XY.04, where Y is pair and current year is between XY-1 to XY+2 (included): upgrade-lts
-# Any releases, where XY.04, where current date is comprised within 6 months.
-
-version=$(chroot chroot lsb_release --release --short)
-
-if [ $(is_lts "${version}") = "true" ]; then
-    create_archive_with_upgrade_policy "never" "ubuntu${version}lts"
-fi
-
-if [ $(is_current_lts_release "${version}" $(date +"%y")) = "true" ]; then
-    create_archive_with_upgrade_policy "lts" "ubuntu"
-fi
-
-if [ $(is_development_release "${version}" $(date +"%y") $(date +"%m")) = "true" ]; then
-    create_archive_with_upgrade_policy "normal" "ubuntupreview"
-fi
-
+# Create the rootfs as a .wsl extension
+cd chroot
+tar --xattrs --sort=name -czf ../livecd.$PROJECT${SUBARCH:+-$SUBARCH}.wsl *
+cd ..
 
 # Remove initial ext4-formatted fs
 rm -f binary/boot/filesystem.ext4