diff -pruN 1.7.2-3/debian/changelog 1.7.2-3ubuntu6/debian/changelog
--- 1.7.2-3/debian/changelog	2019-10-31 08:51:05.000000000 +0000
+++ 1.7.2-3ubuntu6/debian/changelog	2022-03-17 17:51:12.000000000 +0000
@@ -1,3 +1,87 @@
+rrdtool (1.7.2-3ubuntu6) jammy; urgency=medium
+
+  * No-change rebuild with Python 3.10 only.
+
+ -- Matthias Klose <doko@ubuntu.com>  Thu, 17 Mar 2022 18:51:12 +0100
+
+rrdtool (1.7.2-3ubuntu5) jammy; urgency=medium
+
+  * No-change rebuild for the perl update.
+
+ -- Matthias Klose <doko@ubuntu.com>  Sun, 06 Feb 2022 13:52:26 +0100
+
+rrdtool (1.7.2-3ubuntu4) jammy; urgency=medium
+
+  * d/patches/0001-clear-LC_ALL-when-setting-LC_TIME-in-rpn2-test.patch:
+    backport patch from upstream to fix ftbfs with glibc 2.35.
+
+ -- Michael Hudson-Doyle <michael.hudson@ubuntu.com>  Thu, 27 Jan 2022 10:14:12 +1300
+
+rrdtool (1.7.2-3ubuntu3) jammy; urgency=medium
+
+  * No-change upload due to ruby3.0 transition, remove ruby2.7 support.
+
+ -- Lucas Kanashiro <kanashiro@ubuntu.com>  Tue, 07 Dec 2021 19:06:55 -0300
+
+rrdtool (1.7.2-3ubuntu2) jammy; urgency=medium
+
+  * No-change upload due to ruby3.0 transition.
+
+ -- Lucas Kanashiro <kanashiro@ubuntu.com>  Wed, 17 Nov 2021 16:54:06 -0300
+
+rrdtool (1.7.2-3ubuntu1) jammy; urgency=medium
+
+  * Stop building the python3-rrdtool-dbg package.
+  * Fix installation of the python3.10 extension.
+
+ -- Matthias Klose <doko@ubuntu.com>  Sun, 17 Oct 2021 10:40:11 +0200
+
+rrdtool (1.7.2-3build7) jammy; urgency=medium
+
+  * No-change rebuild to add python3.10.
+
+ -- Matthias Klose <doko@ubuntu.com>  Sat, 16 Oct 2021 22:00:48 +0200
+
+rrdtool (1.7.2-3build6) impish; urgency=medium
+
+  * No-change rebuild to build packages with zstd compression.
+
+ -- Matthias Klose <doko@ubuntu.com>  Thu, 07 Oct 2021 12:23:57 +0200
+
+rrdtool (1.7.2-3build5) hirsute; urgency=medium
+
+  * No-change rebuild to drop python3.8 extensions.
+
+ -- Matthias Klose <doko@ubuntu.com>  Mon, 07 Dec 2020 18:45:34 +0100
+
+rrdtool (1.7.2-3build4) hirsute; urgency=medium
+
+  * No-change rebuild for the perl update.
+
+ -- Matthias Klose <doko@ubuntu.com>  Mon, 09 Nov 2020 12:47:03 +0100
+
+rrdtool (1.7.2-3build3) hirsute; urgency=medium
+
+  * No-change rebuild to build with python3.9 as supported.
+
+ -- Matthias Klose <doko@ubuntu.com>  Sat, 24 Oct 2020 10:55:43 +0200
+
+rrdtool (1.7.2-3build2) focal; urgency=medium
+
+  [ Rafael David Tinoco ]
+  * Sponsoring ruby2.7 transitions
+
+  [ Lucas Kanashiro ]
+  * No-change rebuild for ruby2.7
+
+ -- Rafael David Tinoco <rafaeldtinoco@ubuntu.com>  Wed, 26 Feb 2020 17:10:48 +0000
+
+rrdtool (1.7.2-3build1) focal; urgency=medium
+
+  * No-change rebuild to drop python3.7.
+
+ -- Matthias Klose <doko@ubuntu.com>  Tue, 18 Feb 2020 10:25:40 +0100
+
 rrdtool (1.7.2-3) unstable; urgency=medium
 
   * Added Breaks+Replaces for debug symbols migration. (Closes: #943840)
diff -pruN 1.7.2-3/debian/control 1.7.2-3ubuntu6/debian/control
--- 1.7.2-3/debian/control	2019-10-31 08:50:36.000000000 +0000
+++ 1.7.2-3ubuntu6/debian/control	2022-01-25 02:41:38.000000000 +0000
@@ -1,7 +1,8 @@
 Source: rrdtool
 Section: utils
 Priority: optional
-Maintainer: Debian RRDtool Team <pkg-rrdtool-maint@lists.alioth.debian.org>
+Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
+XSBC-Original-Maintainer: Debian RRDtool Team <pkg-rrdtool-maint@lists.alioth.debian.org>
 Uploaders: Alexander Wirt <formorer@debian.org>,
            Jean-Michel Vourgère <nirgal@debian.org>
 Standards-Version: 4.4.1
@@ -16,7 +17,6 @@ Build-Depends: dc,
                libpng-dev,
                libxml2-dev,
                perl (>= 5.8.0),
-               python3-all-dbg,
                python3-all-dev,
                python3-setuptools,
                tcl-dev (<= 9),
@@ -155,29 +155,6 @@ Description: time-series data storage an
  .
  This package contains a Python3 interface to RRDs.
 
-Package: python3-rrdtool-dbg
-Architecture: any
-Multi-Arch: same
-Section: debug
-Pre-Depends: ${misc:Pre-Depends}
-Depends: python3-rrdtool (= ${binary:Version}),
-         ${misc:Depends},
-         ${python3:Depends},
-         ${shlibs:Depends}
-Provides: ${python3:Provides}
-Breaks: rrdtool-dbg
-Replaces: rrdtool-dbg
-Description: time-series data storage and display system (Python3 debug interface)
- The Round Robin Database Tool (RRDtool) is a system to store and display
- time-series data (e.g. network bandwidth, machine-room temperature,
- server load average). It stores the data in Round Robin Databases (RRDs),
- a very compact way that will not expand over time. RRDtool processes the
- extracted data to enforce a certain data density, allowing for useful
- graphical representation of data values.
- .
- This package contains the Python3 debug interface to RRDs, and the debugging
- symbols for both the non-debug and the debug python3 interfaces.
-
 Package: ruby-rrd
 Architecture: any
 Multi-Arch: same
diff -pruN 1.7.2-3/debian/patches/0001-clear-LC_ALL-when-setting-LC_TIME-in-rpn2-test.patch 1.7.2-3ubuntu6/debian/patches/0001-clear-LC_ALL-when-setting-LC_TIME-in-rpn2-test.patch
--- 1.7.2-3/debian/patches/0001-clear-LC_ALL-when-setting-LC_TIME-in-rpn2-test.patch	1970-01-01 00:00:00.000000000 +0000
+++ 1.7.2-3ubuntu6/debian/patches/0001-clear-LC_ALL-when-setting-LC_TIME-in-rpn2-test.patch	2022-01-26 21:13:40.000000000 +0000
@@ -0,0 +1,26 @@
+From bbfd34724e11bbb1f17c5598fa6202335e619674 Mon Sep 17 00:00:00 2001
+From: Michael Hudson-Doyle <michael.hudson@canonical.com>
+Date: Wed, 26 Jan 2022 15:50:18 +1300
+Subject: [PATCH] clear LC_ALL when setting LC_TIME in rpn2 test
+
+This test was failing when LC_ALL was set to C.UTF-8 and using the C.UTF-8 locale which is part of glibc 2.35, which differs in a very minor way to that that has been used by Debian/Ubuntu for years. The tests sets LC_TIME to C, presumably to try to isolate itself from such things, but that does not have any effect if LC_ALL is set in the build environment.
+---
+ tests/rpn2 | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/tests/rpn2 b/tests/rpn2
+index 9f9852f5..b64491d2 100755
+--- a/tests/rpn2
++++ b/tests/rpn2
+@@ -16,7 +16,7 @@ report "create"
+ $RRDTOOL update $RRD 1167487200:0 1167494400:720 1167501600:1440 1167508800:2160 1167516000:2880 1167523200:3600 1167530400:4320 1167537600:5040 1167544800:5760 1167552000:6480 1167559200:7200 1167566400:7920 1167573600:8640 1167580800:9360 1167588000:10080 1167595200:10800 1167602400:11520 1167609600:12240 1167616800:12960
+ 
+ report "update"
+-LC_TIME=C TZ=Europe/Zurich $RRDTOOL xport \
++LC_ALL= LC_TIME=C TZ=Europe/Zurich $RRDTOOL xport \
+       --json \
+       --start  1167487200 --end 1167616800       \
+       DEF:myspeed=$RRD:speed:AVERAGE              \
+-- 
+2.32.0
+
diff -pruN 1.7.2-3/debian/patches/series 1.7.2-3ubuntu6/debian/patches/series
--- 1.7.2-3/debian/patches/series	2019-09-01 13:55:56.000000000 +0000
+++ 1.7.2-3ubuntu6/debian/patches/series	2022-01-26 21:13:40.000000000 +0000
@@ -1,2 +1,3 @@
 no-rpath-for-ruby
 breaks-long-man-lines
+0001-clear-LC_ALL-when-setting-LC_TIME-in-rpn2-test.patch
diff -pruN 1.7.2-3/debian/python3-rrdtool-dbg.install 1.7.2-3ubuntu6/debian/python3-rrdtool-dbg.install
--- 1.7.2-3/debian/python3-rrdtool-dbg.install	2019-10-19 17:49:10.000000000 +0000
+++ 1.7.2-3ubuntu6/debian/python3-rrdtool-dbg.install	1970-01-01 00:00:00.000000000 +0000
@@ -1 +0,0 @@
-usr/lib/python3*/dist-packages/rrdtool*-[0-9][0-9]d[m-]*.so
diff -pruN 1.7.2-3/debian/python3-rrdtool-dbg.lintian-overrides 1.7.2-3ubuntu6/debian/python3-rrdtool-dbg.lintian-overrides
--- 1.7.2-3/debian/python3-rrdtool-dbg.lintian-overrides	2019-10-19 20:59:30.000000000 +0000
+++ 1.7.2-3ubuntu6/debian/python3-rrdtool-dbg.lintian-overrides	1970-01-01 00:00:00.000000000 +0000
@@ -1,3 +0,0 @@
-# This is a false positive:
-# Logs show the gcc is properly invoked with -D_FORTIFY_SOURCE=2 and -O2
-hardening-no-fortify-functions
diff -pruN 1.7.2-3/debian/python3-rrdtool.install 1.7.2-3ubuntu6/debian/python3-rrdtool.install
--- 1.7.2-3/debian/python3-rrdtool.install	2019-10-19 17:49:24.000000000 +0000
+++ 1.7.2-3ubuntu6/debian/python3-rrdtool.install	2022-01-25 02:41:38.000000000 +0000
@@ -1,3 +1,3 @@
 usr/lib/python3*/dist-packages/rrdtool-*.egg-info
-usr/lib/python3*/dist-packages/rrdtool*-[0-9][0-9][m-]*.so
+usr/lib/python3*/dist-packages/rrdtool*.so
 usr/share/rrdtool/examples/stripes.py /usr/share/doc/python3-rrdtool/examples/
diff -pruN 1.7.2-3/debian/rules 1.7.2-3ubuntu6/debian/rules
--- 1.7.2-3/debian/rules	2019-10-19 22:44:12.000000000 +0000
+++ 1.7.2-3ubuntu6/debian/rules	2022-01-25 02:41:38.000000000 +0000
@@ -96,7 +96,6 @@ override_dh_missing:
 	dh_missing -X.la -X.txt -X.pod -Xsystemd --fail-missing
 
 override_dh_strip:
-	dh_strip --package=python3-rrdtool --dbg-package=python3-rrdtool-dbg
 	dh_strip --no-package=python3-rrdtool --dbgsym-migration='rrdtool-dbg (<< 1.7.2-2~)'
 
 override_dh_gencontrol:
