diff -Nru unattended-upgrades-1.1ubuntu1.18.04.7~16.04.6/data/50unattended-upgrades.md5sum unattended-upgrades-1.1ubuntu1.18.04.7~16.04.7/data/50unattended-upgrades.md5sum
--- unattended-upgrades-1.1ubuntu1.18.04.7~16.04.6/data/50unattended-upgrades.md5sum	1970-01-01 00:00:00.000000000 +0000
+++ unattended-upgrades-1.1ubuntu1.18.04.7~16.04.7/data/50unattended-upgrades.md5sum	2021-03-04 19:08:33.000000000 +0000
@@ -0,0 +1,2 @@
+3ad71443bccc1acc9cf4335668ef024f
+404d67afd60e7b8b11f08b1360da219b
diff -Nru unattended-upgrades-1.1ubuntu1.18.04.7~16.04.6/debian/changelog unattended-upgrades-1.1ubuntu1.18.04.7~16.04.7/debian/changelog
--- unattended-upgrades-1.1ubuntu1.18.04.7~16.04.6/debian/changelog	2020-02-17 11:39:28.000000000 +0000
+++ unattended-upgrades-1.1ubuntu1.18.04.7~16.04.7/debian/changelog	2021-03-04 19:11:41.000000000 +0000
@@ -1,3 +1,14 @@
+unattended-upgrades (1.1ubuntu1.18.04.7~16.04.7) xenial; urgency=medium
+
+  * data: add md5sum history file on the data folder (LP: #1915547)
+    - This file contains the md5sum of the current xenial and trusty
+      version of 50unattended-upgrades. This file will be used to avoid
+      prompting users about unattended-upgrade changes when upgrading
+      from trusty to xenial.
+  * debian/postint: make ucf command reference the md5sum history file
+
+ -- Lucas Moura <lucas.moura@canonical.com>  Wed, 10 Feb 2021 17:37:18 -0300
+
 unattended-upgrades (1.1ubuntu1.18.04.7~16.04.6) xenial; urgency=medium
 
   * data/50unattended-upgrades.Ubuntu: add new ESM repositories (LP: #1857051)
diff -Nru unattended-upgrades-1.1ubuntu1.18.04.7~16.04.6/debian/postinst unattended-upgrades-1.1ubuntu1.18.04.7~16.04.7/debian/postinst
--- unattended-upgrades-1.1ubuntu1.18.04.7~16.04.6/debian/postinst	2020-02-17 11:39:28.000000000 +0000
+++ unattended-upgrades-1.1ubuntu1.18.04.7~16.04.7/debian/postinst	2021-02-24 01:22:03.000000000 +0000
@@ -47,9 +47,10 @@
 
 	CONFIG="/etc/apt/apt.conf.d/50unattended-upgrades"
 	NEWFILE="$CONFIG.ucftmp"
+	MD5SUM_FILE="/usr/share/unattended-upgrades/50unattended-upgrades.md5sum"
 	TEMPLATE="/usr/share/unattended-upgrades/50unattended-upgrades"
 	cp -a -f "$TEMPLATE" "$NEWFILE"
-	ucf --three-way --debconf-ok "$NEWFILE" "$CONFIG"
+	ucf --three-way --debconf-ok --sum-file "$MD5SUM_FILE" "$NEWFILE" "$CONFIG"
 	ucfr unattended-upgrades "$CONFIG"
 	rm -f "$NEWFILE"
 
diff -Nru unattended-upgrades-1.1ubuntu1.18.04.7~16.04.6/setup.py unattended-upgrades-1.1ubuntu1.18.04.7~16.04.7/setup.py
--- unattended-upgrades-1.1ubuntu1.18.04.7~16.04.6/setup.py	2020-02-17 11:39:28.000000000 +0000
+++ unattended-upgrades-1.1ubuntu1.18.04.7~16.04.7/setup.py	2021-02-24 01:22:03.000000000 +0000
@@ -21,6 +21,7 @@
                 ["data/20auto-upgrades",
                  "data/20auto-upgrades-disabled",
                  "data/50unattended-upgrades",
+                 "data/50unattended-upgrades.md5sum",
                  "unattended-upgrade-shutdown",
                  "data/update-motd-unattended-upgrades"]),
             ('../usr/share/man/man8/',