Debugged and figured out 4217 (modify occurrence to all-day causes sharing error), which is now really some kind of über-next-of-bugs, with JeffreyHarris.
Met with a bunch of others about 1745 (Use displayName for Item titles?), and helped resolve a course of action.
Met with JohnAnderson to figure the best way for him to fix 6250 (Can't re-subscribe to a calendar after deleting it from the sidebar)
Helped AndiVajda investigate 6266 (Newly created events not showing up on calendar canvas)
Got my new, non-β, release of Parallels running (Thanks, Philippe & Dave!)
Wrote up some issues with implementing stamping as annotations, and implemented pje's suggestions.
Plan
Ongoing work on stamping-as-annotations.
Write up an outline/plan for dealing with indexes and "derived" attributes.