diff -Nru gnat-10ubuntu2/debian/changelog gnat-10.1ubuntu1/debian/changelog
--- gnat-10ubuntu2/debian/changelog	2021-08-20 15:53:40.000000000 +0000
+++ gnat-10.1ubuntu1/debian/changelog	2021-10-25 19:19:18.000000000 +0000
@@ -1,3 +1,18 @@
+gnat (10.1ubuntu1) jammy; urgency=low
+
+  * Merge from Debian unstable. Remaining changes:
+    - Build the gnat-doc package.
+    - Build gnat as an architecture dependent package.
+
+ -- Steve Langasek <steve.langasek@ubuntu.com>  Mon, 25 Oct 2021 12:19:18 -0700
+
+gnat (10.1) unstable; urgency=medium
+
+  * Source-only upload in order to force rebuild by buildds.
+  * Standards-Version: 4.5.1.
+
+ -- Nicolas Boulenguez <nicolas@debian.org>  Tue, 22 Dec 2020 11:14:39 +0100
+
 gnat (10ubuntu2) impish; urgency=medium
 
   * gnat-doc should depend on gnat-10-doc, matching gnat.
@@ -250,3 +265,4 @@
     (split out from gcc-defaults).
 
  -- Ludovic Brenta <lbrenta@debian.org>  Sun, 25 Oct 2009 16:30:31 +0100
+
diff -Nru gnat-10ubuntu2/debian/control gnat-10.1ubuntu1/debian/control
--- gnat-10ubuntu2/debian/control	2021-08-20 15:53:37.000000000 +0000
+++ gnat-10.1ubuntu1/debian/control	2021-08-21 01:42:51.000000000 +0000
@@ -6,7 +6,7 @@
 Priority: optional
 Build-Depends: debhelper-compat (= 13)
 Rules-Requires-Root: no
-Standards-Version: 4.5.0
+Standards-Version: 4.5.1
 Vcs-Browser: https://salsa.debian.org/debian/gnat
 Vcs-Git: https://salsa.debian.org/debian/gnat.git