Ubuntu 16.04 is a LTS release with (IIRC) five years of support. So it
is not unreasonable for someone to use it. However, we (Frescobaldi)
seem to have been hit by this five-year term since we're dealing with a
change in the Qt framework that has phased out support for a module over
(again, IIRC) 2-3 years. So all *current* Linux distributions ship with
a Qt version that only includes QtWebEngine and not QtWebKit anymore.
There has been a range of Qt versions including both.
The question is whether a project like Frescobaldi can reasonably be
expected to actively support such an old OS, even if it's LTS. I'd
assume that lTS guarantees you security patches but not that every new
software will run.
Before upgrading to a newer OS it might be an option to use a current
Qt/PyQt downloaded or compiled from somewhere. @Simon you could do us a
huge favor by exploring that possibility and providing information about
it for the Wiki.
In addition it would be good to have a list of distributions that
include the "new" module, both modules, or only the "old" modules (i.e.
won't work with Frescobaldi 3.1).
Urs
As I've said before, I'm a novice at command line Linux, but I'm attaching a screenshot of my command line search (locate) for QtWebEngine and QtWebKit. I'm running Ubuntu 18.04.3 LTS.
Hope this helps,
Ralph
WebKit.png