On December 11 my 18.04 LTS systems received an update of pulseaudio
from version 7.2 to version 7.5
However, on December 12, version 7.5 was deleted from the repos in favor of version 7.4.
What was wrong with the version of this software that was distributed on the 11th, and what risk am I incurring by running this version on my LTS machines?
Downgrading to 7.4 does not appear to be a simple process, at least for systems running Lubuntu.
From a question I asked at https://answers.launchpad.net/ubuntu/+source/pulseaudio/+question/687128 looks like 7.5 has problems with snaps
and