I also tested upgrading an 19.10 Ubuntu desktop install with chrony installed to 20.04 LTS and chrony remained installed.
bdmurray@clean-eoan-amd64:/tmp/u-r-u-proposed$ apt-cache policy chrony chrony: Installed: 3.5-6ubuntu6 Candidate: 3.5-6ubuntu6 Version table: *** 3.5-6ubuntu6 500 500 http://192.168.10.7/ubuntu focal/main amd64 Packages 100 /var/lib/dpkg/status bdmurray@clean-eoan-amd64:/tmp/u-r-u-proposed$ apt-cache policy systemd-timesyncd systemd-timesyncd: Installed: (none) Candidate: 245.4-4ubuntu3 Version table: 245.4-4ubuntu3 500 500 http://192.168.10.7/ubuntu focal/main amd64 Packages bdmurray@clean-eoan-amd64:/tmp/u-r-u-proposed$ head /var/log/dist-upgrade/main.log 2020-05-06 11:12:55,719 INFO Using config files '['./DistUpgrade.cfg']' 2020-05-06 11:12:55,719 INFO uname information: 'Linux clean-eoan-amd64 5.3.0-51-generic #44-Ubuntu SMP Wed Apr 22 21:09:44 UTC 2020 x86_64' 2020-05-06 11:12:56,050 INFO apt version: '1.9.4' 2020-05-06 11:12:56,051 INFO python version: '3.7.5 (default, Apr 19 2020, 20:18:17) [GCC 9.2.1 20191008]' 2020-05-06 11:12:56,053 INFO release-upgrader version '20.04.19' started 2020-05-06 11:12:56,056 INFO locale: 'en_US' 'UTF-8' 2020-05-06 11:12:56,118 DEBUG Using 'DistUpgradeViewText' view 2020-05-06 11:12:56,151 DEBUG enable dpkg --force-overwrite 2020-05-06 11:12:56,182 DEBUG creating statefile: '/var/log/dist-upgrade/apt-clone_system_state.tar.gz' -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1872902 Title: Upgrade to Focal now removes chrony To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-release-notes/+bug/1872902/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs