diff -Nru cohomcalg-0.32+ds/debian/changelog cohomcalg-0.32+ds/debian/changelog
--- cohomcalg-0.32+ds/debian/changelog	2020-07-11 13:31:35.000000000 +0000
+++ cohomcalg-0.32+ds/debian/changelog	2020-12-12 13:40:10.000000000 +0000
@@ -1,3 +1,28 @@
+cohomcalg (0.32+ds-3ppa2~ubuntu18.04.1) bionic; urgency=low
+
+  * Auto build.
+
+ -- Doug Torrance <dtorrance@piedmont.edu>  Sat, 12 Dec 2020 13:40:10 +0000
+
+cohomcalg (0.32+ds-3ppa2) bionic; urgency=medium
+
+  * Drop to debhelper compatibility level 11 for bionic.
+
+ -- Doug Torrance <dtorrance@piedmont.edu>  Fri, 11 Dec 2020 23:39:17 -0500
+
+cohomcalg (0.32+ds-3ppa1) bionic; urgency=medium
+
+  * debian/control
+    - Drop to debhelper compatibility level 12 for bionic.
+  * debian/patches/manual-uuid.patch
+    - Remove patch; version of hyperxmp in bionic is too old to have
+      support for pdfinstanceid, so let's not worry about reproducible
+      builds in the PPA.
+  * debian/salsa-ci.yml
+    - Remove Salsa pipelines config file for PPA builds.
+
+ -- Doug Torrance <dtorrance@piedmont.edu>  Sat, 25 Jul 2020 08:17:25 -0400
+
 cohomcalg (0.32+ds-3) unstable; urgency=medium
 
   * debian/compat
diff -Nru cohomcalg-0.32+ds/debian/compat cohomcalg-0.32+ds/debian/compat
--- cohomcalg-0.32+ds/debian/compat	1970-01-01 00:00:00.000000000 +0000
+++ cohomcalg-0.32+ds/debian/compat	2020-12-12 13:40:10.000000000 +0000
@@ -0,0 +1 @@
+11
diff -Nru cohomcalg-0.32+ds/debian/control cohomcalg-0.32+ds/debian/control
--- cohomcalg-0.32+ds/debian/control	2020-07-11 13:31:35.000000000 +0000
+++ cohomcalg-0.32+ds/debian/control	2020-12-12 13:40:10.000000000 +0000
@@ -3,7 +3,7 @@
 Priority: optional
 Maintainer: Debian Science Maintainers <debian-science-maintainers@lists.alioth.debian.org>
 Uploaders: Doug Torrance <dtorrance@piedmont.edu>
-Build-Depends: debhelper-compat (= 13), libpolylib64-dev
+Build-Depends: debhelper (>= 11), libpolylib64-dev
 Build-Depends-Indep: texlive-fonts-recommended,
                      texlive-latex-base,
                      texlive-latex-extra,
diff -Nru cohomcalg-0.32+ds/debian/git-build-recipe.manifest cohomcalg-0.32+ds/debian/git-build-recipe.manifest
--- cohomcalg-0.32+ds/debian/git-build-recipe.manifest	1970-01-01 00:00:00.000000000 +0000
+++ cohomcalg-0.32+ds/debian/git-build-recipe.manifest	2020-12-12 13:40:10.000000000 +0000
@@ -0,0 +1,2 @@
+# git-build-recipe format 0.4 deb-version {debversion}
+lp:~profzoom/macaulay2/+git/cohomcalg git-commit:25a9e89e5009abcc67655e5e89d1dd3319c94e91
diff -Nru cohomcalg-0.32+ds/debian/patches/manual-uuid.patch cohomcalg-0.32+ds/debian/patches/manual-uuid.patch
--- cohomcalg-0.32+ds/debian/patches/manual-uuid.patch	2020-07-11 13:31:35.000000000 +0000
+++ cohomcalg-0.32+ds/debian/patches/manual-uuid.patch	1970-01-01 00:00:00.000000000 +0000
@@ -1,19 +0,0 @@
-Description: Fix manual InstanceID XMP tag for reproducibility.
- Using uuid from generated manual in upstream git repository
- (https://github.com/BenjaminJurke/cohomCalg/blob/1402326/manual.pdf)
-Author: Doug Torrance <dtorrance@piedmont.edu>
-Last-Update: 2020-07-11
-
---- a/manual/latex_source/manual.tex
-+++ b/manual/latex_source/manual.tex
-@@ -42,8 +42,8 @@
-       bookmarksopen, bookmarksnumbered, bookmarksopenlevel=2,
- 		  breaklinks=true, 
- 	    colorlinks=true,
--			linkcolor=darkred, citecolor=darkgreen, filecolor=dullmagenta, urlcolor=darkblue}
--			
-+			linkcolor=darkred, citecolor=darkgreen, filecolor=dullmagenta, urlcolor=darkblue,
-+      pdfinstanceid={uuid:a3e4c905-9546-4cef-b5fd-c418d75f7541}}
- \usepackage{xcolor}
- 	% existing: black, white, blue, red, green, yellow
- 	\definecolor{darkgrey}{rgb}{0.3,0.3,0.3}
diff -Nru cohomcalg-0.32+ds/debian/patches/series cohomcalg-0.32+ds/debian/patches/series
--- cohomcalg-0.32+ds/debian/patches/series	2020-07-11 13:31:35.000000000 +0000
+++ cohomcalg-0.32+ds/debian/patches/series	2020-12-12 13:40:10.000000000 +0000
@@ -1,3 +1,2 @@
 link_polylib.patch
 remove_non-dfsg_logo.patch
-manual-uuid.patch
diff -Nru cohomcalg-0.32+ds/debian/salsa-ci.yml cohomcalg-0.32+ds/debian/salsa-ci.yml
--- cohomcalg-0.32+ds/debian/salsa-ci.yml	2020-07-11 13:31:35.000000000 +0000
+++ cohomcalg-0.32+ds/debian/salsa-ci.yml	1970-01-01 00:00:00.000000000 +0000
@@ -1,4 +0,0 @@
----
-include:
-  - https://salsa.debian.org/salsa-ci-team/pipeline/raw/master/salsa-ci.yml
-  - https://salsa.debian.org/salsa-ci-team/pipeline/raw/master/pipeline-jobs.yml