how do i update this?

Newer deja dup versions have some newer dependencies that you'd have to install too, like new gtk. I wouldn't advise it on a machine you care about until the next version of Ubuntu is released.

Hi,
Thanks for the response. But does that mean it will be added to long term support update or not? That's why I took long term support version. the simple fact thatit is called long term support. The clue is in the name

I am surprised that an LTS is released where an installed as standard package does not work. I can understand problems like this if I start to customize, but I expect everything in LTS to be pretty solid.

I am also surprised that a some dependencies are changed for what looks like a basic requirement of backup software. I don't mean to be critical but for me this is a basic requirement of a system. The world seems to have lost beckward compatibility in the name of "progress"
regards

wjam

The new release will not be added to an LTS release. Stable releases have a policy determining which updates are appropriate:
https://wiki.ubuntu.com/StableReleaseUpdates

And whole new releases usually aren't. It's possible that a patch backporting that one fix could happen. But even then, it's not clear it's "important enough" to risk accidental regressions.

As for dependencies changing... Yeah I jumped pretty aggressively in using a new GTK release. But it had been a while since I updated and I wanted to modernize a bit.

Ok, I see.

I installed sbackup, which works without issue. Sorry, but for me a backup software is a critical part of the install, and I think it should be lightweight and as backwards compatible as possible. And, if on LTS release, should work as intended. I have no idea if that is Canonical fault or whoever, but deja dup is simply not fully tested on 16.04 prior to release
regards
wjam