diff -Nru apt-cacher-ng-0.7.2/debian/changelog apt-cacher-ng-0.7.2/debian/changelog
--- apt-cacher-ng-0.7.2/debian/changelog	2013-04-16 14:27:55.000000000 +0200
+++ apt-cacher-ng-0.7.2/debian/changelog	2016-03-04 10:06:33.000000000 +0100
@@ -1,3 +1,9 @@
+apt-cacher-ng (0.7.2-1ubuntu2.2) precise; urgency=low
+
+  * Backport changes needed to support AppStream / DEP-11 (LP: #1547431).
+
+ -- Stefan Bader <stefan.bader@canonical.com>  Fri, 04 Mar 2016 10:03:37 +0100
+
 apt-cacher-ng (0.7.2-1ubuntu2.1) precise-proposed; urgency=low
 
   [ Eduard Bloch ]
diff -Nru apt-cacher-ng-0.7.2/debian/patches/series apt-cacher-ng-0.7.2/debian/patches/series
--- apt-cacher-ng-0.7.2/debian/patches/series	2013-04-16 14:27:36.000000000 +0200
+++ apt-cacher-ng-0.7.2/debian/patches/series	2016-03-04 09:51:55.000000000 +0100
@@ -1,2 +1,3 @@
 fix-storage-of-http-header-data.patch
 stop-looping.patch
+ubuntu-backport-appstream-support.patch
diff -Nru apt-cacher-ng-0.7.2/debian/patches/ubuntu-backport-appstream-support.patch apt-cacher-ng-0.7.2/debian/patches/ubuntu-backport-appstream-support.patch
--- apt-cacher-ng-0.7.2/debian/patches/ubuntu-backport-appstream-support.patch	1970-01-01 01:00:00.000000000 +0100
+++ apt-cacher-ng-0.7.2/debian/patches/ubuntu-backport-appstream-support.patch	2016-03-04 10:03:31.000000000 +0100
@@ -0,0 +1,19 @@
+Description: Backport of changes required to support AppStream
+ To allow apt-cacher-ng running on older releases servicing clients
+ with AppStream enabled.
+Origin: https://alioth.debian.org/plugins/scmgit/cgi-bin/gitweb.cgi?p=apt-cacher-ng/apt-cacher-ng.git;a=commitdiff;h=c54b88bb28781b13a35c7bbc227066c7c141af9c
+Bug-Ubuntu: https://bugs.launchpad.net/ubuntu/+source/apt-cacher-ng/+bug/1547431
+
+Index: apt-cacher-ng-0.7.2/source/acfg_defaults.cc
+===================================================================
+--- apt-cacher-ng-0.7.2.orig/source/acfg_defaults.cc	2016-03-04 09:49:39.000000000 +0100
++++ apt-cacher-ng-0.7.2/source/acfg_defaults.cc	2016-03-04 09:58:53.418886402 +0100
+@@ -48,6 +48,8 @@ string vfilepat( INFOLDER
+ 		"|packages\\.[a-zA-Z][a-zA-Z]\\.gz|info\\.txt|license\\.tar\\.gz|license\\.zip" //opensuse
+ 		"|"ALXPATTERN // Arch Linux
+ 		"|metalink\\?repo|.*prestodelta\\.xml\\.gz" // fedora core, maybe... never worked reliably
++		"|Components-.*yml" COMPOPT // DEP-11 aka AppStream
++		"|icons-[x0-9]+\\.tar" COMPOPT
+ 		")$" // end of filename paterns. Any other some specific URLs?
+ 		"|/dists/.*/installer-[^/]+/[^0-9][^/]+/images/.*"); // d-i stuff but not containing a number (year) in the revision directory (like "current", "beta", ...)
+