Curious. This did not happen on my main bare metal install, or the several VM upgrades I tested.

In my 17.10 VM with Backports Landing, Konsole and Kate have the regular menu (File Edit, View, etc.) Discover does not, but I do not think it ever did.

https://imgur.com/a/kovch

Won't Fix: https://bugs.kde.org/show_bug.cgi?id=389318#c1

In T7905#126842, @mparillo wrote:

In my 17.10 VM with Backports Landing, Konsole and Kate have the regular menu (File Edit, View, etc.) Discover does not, but I do not think it ever did.

https://imgur.com/a/kovch

Right, Discover doesn't have a menu.

In T7905#126844, @mparillo wrote:

Won't Fix: https://bugs.kde.org/show_bug.cgi?id=389318#c1

That's not related to this.

3 machines upgraded here without issue (just in case we are taking a poll) :)

I'm happy to hear it was just me!

I take that back, one system had a slight issue as I mentioned in Kubuntu:

On one of 3 systems upgrade to 5.12 (all 3 have hidden panels on the left edge of screen) my panel unhides twice when mouse is moved to left screen edge. The other 2 systems behave normally.

If I move the panel to any other edge, no double bounce. If add a new panel to the left edge, double bounce.

I bet it will have nomally if I stomp on /home/darin/.config/plasma-org.kde.plasma.desktop-appletsrc or /home/darin/.config/plasmarc

/me loves the "Set Sail for Adventure" button.

Just saw another report of this in the wild: https://www.reddit.com/r/kde/comments/7vpwb5/plasma_512_bug_thread/dtv3t4y/

If the reporter isn't using Kubuntu, I'll report upstream.