Problem
When updating to UCS 4.4-6 the update will fail.
Environment
Checking the file /var/log/univention/updater.log you will see messages like this:
Update to = 4.4-6
**** Downloading scripts at Mon Oct 12 09:20:03 2020
Error: Update aborted due to verification error:
Verification error: Signature download failed
This can and should only be disabled temporarily using the UCR
variable 'repository/online/verify'.
exitcode of univention-updater: 1
Solution
Install this fix and your update should run without issues.