Comment 34 for bug 1448164

>I don't understand why it says "Fix released" because nothing has changed since 2015.

The Fix Released status refers to Ubuntu in general. If a bug is fixed in the latest version (like this is), then the bug is considered fixed. (See https://wiki.ubuntu.com/Bugs/Bug%20statuses for more details and description on bug statuses)

However, as you mention this still affect some releases, like 16.04 (code named Xenial). The Xenial task which is currently marked as Triaged is tracking this. So it says that the bug is fixed in newer releases, but 16.04 is still missing a patch. Unfortunately, making a patch for this issue isn't neccessarily trivial, see also the discussion in comments #25-#30. Though someone changed their mind and marked it as Triaged for 16.04, so something might happen...