Upgrade Insanity

[Alvin]

On Wednesday 01 April 2015 04:15:46 Bill Vance wrote:
> [...]
> Now there's a window stating, "APPER Distribution
> upgrade available Trusty 14.04.2 LTS the latest
> stable release", with a, "Start upgrade now", link.
> [...]
> Is there any way to permanently turn this crap off?

Check this file:
/etc/update-manager/release-upgrades
I believe setting "Prompt=never" will disable the upgrade messages.