Well, a bunch of the URLs for old stuff in my site has changed because of the move to the new server. I decided to go ahead and install a more strict installation of the IISlockdown tool. Since IISLockdown doesn’t like periods in directories (unless you explicitly enable them, which I didn’t want to do) I had to change my templates so that they didn’t use periods in the path names. I changed the periods to commas.
I know you are supposed to maintain "evergreen" URLs … but this should be the last major change for a while.