diff --git a/scripts/_common.sh b/scripts/_common.sh
index aff7007..8556a88 100755
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -247,144 +247,6 @@ ynh_maintenance_mode_OFF () {
 	systemctl reload nginx
 }
 
-#=================================================
-
-# Create a changelog for an app after an upgrade from the file CHANGELOG.md.
-#
-# usage: ynh_app_changelog [--format=markdown/html/plain] [--output=changelog_file] --changelog=changelog_source]
-# | arg: -f --format= - Format in which the changelog will be printed
-#	   markdown: Default format.
-#	   html:	 Turn urls into html format.
-#	   plain:	Plain text changelog
-# | arg: -o --output= - Output file for the changelog file (Default ./changelog)
-# | arg: -c --changelog= - CHANGELOG.md source (Default ../CHANGELOG.md)
-#
-# The changelog is printed into the file ./changelog and ./changelog_lite
-ynh_app_changelog () {
-	# Declare an array to define the options of this helper.
-	local legacy_args=foc
-	declare -Ar args_array=( [f]=format= [o]=output= [c]=changelog= )
-	local format
-	local output
-	local changelog
-	# Manage arguments with getopts
-	ynh_handle_getopts_args "$@"
-	format=${format:-markdown}
-	output=${output:-changelog}
-	changelog=${changelog:-../CHANGELOG.md}
-
-	local original_changelog="$changelog"
-	local temp_changelog="changelog_temp"
-	local final_changelog="$output"
-
-	if [ ! -n "$original_changelog" ]
-	then
-		echo "No changelog available..." > "$final_changelog"
-		echo "No changelog available..." > "${final_changelog}_lite"
-		return 0
-	fi
-
-	local current_version=$(ynh_read_manifest --manifest="/etc/yunohost/apps/$YNH_APP_INSTANCE_NAME/manifest.json" --manifest_key="version")
-	local update_version=$(ynh_read_manifest --manifest="../manifest.json" --manifest_key="version")
-
-	# Get the line of the version to update to into the changelog
-	local update_version_line=$(grep --max-count=1 --line-number "^## \[$update_version" "$original_changelog" | cut -d':' -f1)
-	# If there's no entry for this version yet into the changelog
-	# Get the first available version
-	if [ -z "$update_version_line" ]
-	then
-		update_version_line=$(grep --max-count=1 --line-number "^##" "$original_changelog" | cut -d':' -f1)
-	fi
-
-	# Get the length of the complete changelog.
-	local changelog_length=$(wc --lines "$original_changelog" | awk '{print $1}')
-	# Cut the file before the version to update to.
-	tail --lines=$(( $changelog_length - $update_version_line + 1 )) "$original_changelog" > "$temp_changelog"
-
-	# Get the length of the troncated changelog.
-	changelog_length=$(wc --lines "$temp_changelog" | awk '{print $1}')
-	# Get the line of the current version into the changelog
-	# Keep only the last line found
-	local current_version_line=$(grep --line-number "^## \[$current_version" "$temp_changelog" | cut -d':' -f1 | tail --lines=1)
-	# If there's no entry for this version into the changelog
-	# Get the last available version
-	if [ -z "$current_version_line" ]
-	then
-		current_version_line=$(grep --line-number "^##" "$original_changelog" | cut -d':' -f1 | tail --lines=1)
-	fi
-	# Cut the file before the current version.
-	# Then grep the previous version into the changelog to get the line number of the previous version
-	local previous_version_line=$(tail --lines=$(( $changelog_length - $current_version_line )) \
-		"$temp_changelog" | grep --max-count=1 --line-number "^## " | cut -d':' -f1)
-	# If there's no previous version into the changelog
-	# Go until the end of the changelog
-	if [ -z "$previous_version_line" ]
-	then
-		previous_version_line=$changelog_length
-	fi
-
-	# Cut the file after the previous version to keep only the changelog between the current version and the version to update to.
-	head --lines=$(( $current_version_line + $previous_version_line - 1 )) "$temp_changelog" | tee "$final_changelog"
-
-	if [ "$format" = "html" ]
-	then
-		# Replace markdown links by html links
-		ynh_replace_string --match_string="\[\(.*\)\](\(.*\)))" --replace_string="<a href=\"\2\">\1</a>)" --target_file="$final_changelog"
-		ynh_replace_string --match_string="\[\(.*\)\](\(.*\))" --replace_string="<a href=\"\2\">\1</a>" --target_file="$final_changelog"
-	elif [ "$format" = "plain" ]
-	then
-		# Change title format.
-		ynh_replace_string --match_string="^##.*\[\(.*\)\](\(.*\)) - \(.*\)$" --replace_string="## \1 (\3) - \2" --target_file="$final_changelog"
-		# Change modifications lines format.
-		ynh_replace_string --match_string="^\([-*]\).*\[\(.*\)\]\(.*\)" --replace_string="\1 \2 \3" --target_file="$final_changelog"
-	fi
-	# else markdown. As the file is already in markdown, nothing to do.
-
-	# Keep only important changes into the changelog
-	# Remove all minor changes
-	sed '/^-/d' "$final_changelog" > "${final_changelog}_lite"
-	# Remove all blank lines (to keep a clear workspace)
-	sed --in-place '/^$/d' "${final_changelog}_lite"
-	# Add a blank line at the end
-	echo "" >> "${final_changelog}_lite"
-
-	# Clean titles if there's no significative changes
-	local line
-	local previous_line=""
-	while read line <&3
-	do
-		if [ -n "$previous_line" ]
-		then
-			# Remove the line if it's a title or a blank line, and the previous one was a title as well.
-			if ( [ "${line:0:1}" = "#" ] || [ ${#line} -eq 0 ] ) && [ "${previous_line:0:1}" = "#" ]
-			then
-				ynh_replace_special_string --match_string="${previous_line//[/.}" --replace_string="" --target_file="${final_changelog}_lite"
-			fi
-		fi
-		previous_line="$line"
-	done 3< "${final_changelog}_lite"
-
-	# Remove all blank lines again
-	sed --in-place '/^$/d' "${final_changelog}_lite"
-
-	# Restore changelog format with blank lines
-	ynh_replace_string --match_string="^##.*" --replace_string="\n\n&\n" --target_file="${final_changelog}_lite"
-	# Remove the 2 first blank lines
-	sed --in-place '1,2d' "${final_changelog}_lite"
-	# Add a blank line at the end
-	echo "" >> "${final_changelog}_lite"
-
-	# If changelog are empty, add an info
-	if [ $(wc --words "$final_changelog" | awk '{print $1}') -eq 0 ]
-	then
-		echo "No changes from the changelog..." > "$final_changelog"
-	fi
-	if [ $(wc --words "${final_changelog}_lite" | awk '{print $1}') -eq 0 ]
-	then
-		echo "No significative changes from the changelog..." > "${final_changelog}_lite"
-	fi
-}
-
 #=================================================
 # FUTURE OFFICIAL HELPERS
 #=================================================
diff --git a/scripts/install b/scripts/install
index c1a968c..f70634a 100644
--- a/scripts/install
+++ b/scripts/install
@@ -57,7 +57,6 @@ ynh_app_setting_set --app=$app --key=overwrite_setupvars --value=1
 ynh_app_setting_set --app=$app --key=overwrite_ftl --value=1
 ynh_app_setting_set --app=$app --key=overwrite_nginx --value=1
 ynh_app_setting_set --app=$app --key=overwrite_phpfpm --value=1
-ynh_app_setting_set --app=$app --key=admin_mail_html --value=1
 
 #=================================================
 # STANDARD MODIFICATIONS
diff --git a/scripts/upgrade b/scripts/upgrade
index adbed2c..ec42e59 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -29,7 +29,6 @@ overwrite_setupvars=$(ynh_app_setting_get --app=$app --key=overwrite_setupvars)
 overwrite_ftl=$(ynh_app_setting_get --app=$app --key=overwrite_ftl)
 overwrite_nginx=$(ynh_app_setting_get --app=$app --key=overwrite_nginx)
 overwrite_phpfpm=$(ynh_app_setting_get --app=$app --key=overwrite_phpfpm)
-admin_mail_html=$(ynh_app_setting_get --app=$app --key=admin_mail_html)
 fpm_footprint=$(ynh_app_setting_get --app=$app --key=fpm_footprint)
 fpm_usage=$(ynh_app_setting_get --app=$app --key=fpm_usage)
 
@@ -418,14 +417,6 @@ ynh_maintenance_mode_OFF
 # Get main domain and buid the url of the admin panel of the app.
 admin_panel="https://$(grep portal_domain /etc/ssowat/conf.json | cut -d'"' -f4)/yunohost/admin/#/apps/$app"
 
-# If a HTML email is required. Apply HTML to the changelog.
-if [ "$admin_mail_html" -eq 1 ]; then
-	format=html
-else
-	format=plain
-fi
-ynh_app_changelog --format=$format
-
 if [ $enable_dhcp -eq 1 ]
 then
 	dhcp_alert="You asked to use the internal DHCP server of dnsmasq with Pi-hole.