kudos on the latest TikiWiki version!
However, if I could figure out how to report a bug, I would post one to the effect that now when an event is saved to the calendar and then re-opened, the time the event is scheduled for moves to the previous hour.
Prior to this version, the time had advanced to one hour later. I'm not sure moving to the previous hour is an improvement.
And I apologize that my first comment on the new Wiki is a bug report. I do appreciate all the time and effort that has gone into 1.9.8!!