This open source s/w approach really works surprisingly well.
I have a collapsing archives plug-in the side-bar that failed as the date went from 2010 to 2011, despite having ten years of successfully linked archives. At first – yesterday – I thought maybe there was a “decade” level of hierarchy, but whatever the design intent the years and months got screwed up in the display. I was about to troll for a fix this morning, and in fact as a logged into WordPress the Robert Felty “Collapsing Archives” plug-in had an update waiting to go … it auto-updated … and it seems to behave correctly. Result.
Oh, and of course that means I noticed this is my 10th year of blogging ! Wow.