diff -pruN 3.3/apt-file 3.3ubuntu2/apt-file
--- 3.3/apt-file	2022-09-10 10:29:46.000000000 +0000
+++ 3.3ubuntu2/apt-file	2026-01-05 02:15:46.000000000 +0000
@@ -707,8 +707,12 @@ sub main {
         debug(1, "Dir::Etc::apt-file-main was not set");
     }
     get_options();
-    @arch_res = split(m/\s*,\s*/,
-                      $Conf->{arch} || $_config->{'APT::Architecture'});
+    @arch_res = grep { $_ ne '' } split(m/\s*,\s*/,
+                      $Conf->{arch} ||
+                      ("$_config->{'APT::Architecture'}," .
+                       (defined $_config->{'APT::Architecture-Variants'} ?
+                        $_config->{'APT::Architecture-Variants'} : '')));
+
     @suites = split(m/\s*,\s*/, $_config->get(CONFIG_SEARCH_FILTER_SUITES) // '');
     @origins = split(m/\s*,\s*/, $_config->get(CONFIG_SEARCH_FILTER_ORIGINS) // '');
     if (none { $_ eq 'all' } @arch_res) {
diff -pruN 3.3/debian/changelog 3.3ubuntu2/debian/changelog
--- 3.3/debian/changelog	2022-09-10 10:35:07.000000000 +0000
+++ 3.3ubuntu2/debian/changelog	2026-01-05 02:16:20.000000000 +0000
@@ -1,3 +1,15 @@
+apt-file (3.3ubuntu2) resolute; urgency=medium
+
+  * Handle missing APT::Architecture-Variants (LP: #2130385)
+
+ -- Heinrich Schuchardt <heinrich.schuchardt@canonical.com>  Mon, 05 Jan 2026 15:16:20 +1300
+
+apt-file (3.3ubuntu1) resolute; urgency=medium
+
+  * Support architecture variants (LP: #2130385)
+
+ -- Heinrich Schuchardt <heinrich.schuchardt@canonical.com>  Fri, 31 Oct 2025 00:36:36 +0100
+
 apt-file (3.3) unstable; urgency=medium
 
   [ Debian Janitor ]
diff -pruN 3.3/debian/control 3.3ubuntu2/debian/control
--- 3.3/debian/control	2022-09-10 10:29:46.000000000 +0000
+++ 3.3ubuntu2/debian/control	2026-01-05 02:15:32.000000000 +0000
@@ -1,7 +1,8 @@
 Source: apt-file
 Section: admin
 Priority: optional
-Maintainer: APT Development Team <deity@lists.debian.org>
+Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
+XSBC-Original-Maintainer: APT Development Team <deity@lists.debian.org>
 Uploaders: Niels Thykier <niels@thykier.net>
 Build-Depends:
  apt,