diff -pruN 4.33-3/debian/changelog 4.33-3ubuntu2/debian/changelog
--- 4.33-3/debian/changelog	2019-08-19 22:20:00.000000000 +0000
+++ 4.33-3ubuntu2/debian/changelog	2021-02-09 09:57:54.000000000 +0000
@@ -1,3 +1,25 @@
+pollinate (4.33-3ubuntu2) hirsute; urgency=medium
+
+  * d/pollinate.service: ensure cache directory is recreated (LP: #1848923)
+
+ -- Christian Ehrhardt <christian.ehrhardt@canonical.com>  Tue, 09 Feb 2021 10:57:54 +0100
+
+pollinate (4.33-3ubuntu1) focal; urgency=medium
+
+  * Merge with Debian unstable. Remaining changes:
+    - d/p/replace-lsb-release.patch: removed as it's Debian specific
+    - Use the Ubuntu entropy server and certificate:
+      + d/pollinate.default: use entropy.ubuntu.com and its certificate
+      + d/pollinate.install: install the ubuntu.entropy.com certificate
+    - d/control: add breaks/replaces on pollen 4.21-1 which is when the
+      check_pollen script moved out of pollen. Case #9 of package transition.
+      [Can be dropped after 20.04]
+  * Dropped:
+    - d/watch: add watch file pointing at launchpad
+      [Fixed upstream]
+
+ -- Lucas Kanashiro <lucas.kanashiro@canonical.com>  Tue, 19 Nov 2019 18:34:55 -0300
+
 pollinate (4.33-3) unstable; urgency=medium
 
   * upload source package
@@ -5,6 +27,19 @@ pollinate (4.33-3) unstable; urgency=med
 
  -- Thorsten Alteholz <debian@alteholz.de>  Mon, 19 Aug 2019 22:20:00 +0000
 
+pollinate (4.33-2ubuntu1) eoan; urgency=medium
+
+  * d/p/replace-lsb-release.patch: removed as it's Debian specific
+  * Use the Ubuntu entropy server and certificate:
+    - d/pollinate.default: use entropy.ubuntu.com and its certificate
+    - d/pollinate.install: install the ubuntu.entropy.com certificate
+  * d/watch: add watch file pointing at launchpad
+  * d/control: add breaks/replaces on pollen 4.21-1 which is when the
+    check_pollen script moved out of pollen. Case #9 of package transition.
+    [Can be dropped after 20.04]
+
+ -- Andreas Hasenack <andreas@canonical.com>  Tue, 21 May 2019 10:42:07 -0300
+
 pollinate (4.33-2) unstable; urgency=medium
 
   * debian/control: add salsa VCS URLs
diff -pruN 4.33-3/debian/control 4.33-3ubuntu2/debian/control
--- 4.33-3/debian/control	2019-02-28 18:15:14.000000000 +0000
+++ 4.33-3ubuntu2/debian/control	2021-02-09 09:57:54.000000000 +0000
@@ -1,7 +1,8 @@
 Source: pollinate
 Section: admin
 Priority: optional
-Maintainer: Thorsten Alteholz <debian@alteholz.de>
+Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
+XSBC-Original-Maintainer: Thorsten Alteholz <debian@alteholz.de>
 Build-Depends: debhelper (>= 11)
 Standards-Version: 4.3.0
 Homepage: http://launchpad.net/pollinate
@@ -11,6 +12,8 @@ Vcs-Git: https://salsa.debian.org/alteho
 Package: pollinate
 Architecture: all
 Depends: ${misc:Depends}, curl, adduser, xxd | vim-common
+Breaks: pollen (<< 4.21-1)
+Replaces: pollen (<< 4.21-1)
 Description: seed the pseudo random number generator
  This client will connect to one or more Pollen (entropy-as-a-service)
  servers over an (optionally) encrypted connection and retrieve a random
diff -pruN 4.33-3/debian/patches/replace-lsb-release.patch 4.33-3ubuntu2/debian/patches/replace-lsb-release.patch
--- 4.33-3/debian/patches/replace-lsb-release.patch	2019-02-04 18:15:14.000000000 +0000
+++ 4.33-3ubuntu2/debian/patches/replace-lsb-release.patch	1970-01-01 00:00:00.000000000 +0000
@@ -1,15 +0,0 @@
-Description: in Debian there is no /etc/lsb-release
-Author: Thorsten Alteholz <debian@alteholz.de>
-Index: pollinate-4.33/pollinate
-===================================================================
---- pollinate-4.33.orig/pollinate	2018-05-29 22:13:20.000000000 +0200
-+++ pollinate-4.33/pollinate	2019-02-06 16:12:12.298990019 +0100
-@@ -187,7 +187,7 @@
- 	# Construct a user agent, with useful debug information
- 	# Very similar to Firefox and Chrome
- 	
--	. /etc/lsb-release
-+	DISTRIB_DESCRIPTION="Debian `cat /etc/debian_version`"
- 
- 	local pkg_info="" lsb="" platform="" cpu="" up="NA" idle="NA" uptime
- 	read_package_versions && pkg_info="$_RET"
diff -pruN 4.33-3/debian/patches/series 4.33-3ubuntu2/debian/patches/series
--- 4.33-3/debian/patches/series	2019-02-04 18:15:14.000000000 +0000
+++ 4.33-3ubuntu2/debian/patches/series	2021-02-09 09:57:54.000000000 +0000
@@ -1,2 +1 @@
 check-pollen-to-pollinate.patch
-replace-lsb-release.patch
diff -pruN 4.33-3/debian/pollinate.default 4.33-3ubuntu2/debian/pollinate.default
--- 4.33-3/debian/pollinate.default	2019-02-04 18:15:14.000000000 +0000
+++ 4.33-3ubuntu2/debian/pollinate.default	2021-02-09 09:57:54.000000000 +0000
@@ -5,9 +5,6 @@ BINARY=1
 QUIET=0
 WAIT=10
 DEVICE="/dev/urandom"
-#
-# plese use this SERVER only for testing 
-#SERVER="https://pollen.debian.alteholz.net/"
-SERVER="https://pollen.example.com/"
+SERVER="https://entropy.ubuntu.com/"
 POOL=""
-CURL_OPTS=""
+CURL_OPTS="--cacert /etc/pollinate/entropy.ubuntu.com.pem --capath /dev/null"
diff -pruN 4.33-3/debian/pollinate.install 4.33-3ubuntu2/debian/pollinate.install
--- 4.33-3/debian/pollinate.install	2019-02-04 18:15:14.000000000 +0000
+++ 4.33-3ubuntu2/debian/pollinate.install	2021-02-09 09:57:54.000000000 +0000
@@ -1,2 +1,3 @@
 pollinate /usr/bin/
+entropy.ubuntu.com.pem /etc/pollinate/
 check_pollen /usr/lib/nagios/plugins/
diff -pruN 4.33-3/debian/pollinate.service 4.33-3ubuntu2/debian/pollinate.service
--- 4.33-3/debian/pollinate.service	2019-02-28 18:15:14.000000000 +0000
+++ 4.33-3ubuntu2/debian/pollinate.service	2021-02-09 09:57:54.000000000 +0000
@@ -9,6 +9,8 @@ Documentation=https://launchpad.net/poll
 [Service]
 User=pollinate
 ExecStart=/usr/bin/pollinate
+CacheDirectory=pollinate
+CacheDirectoryMode=0750
 Type=oneshot
 
 [Install]
