+* Transient tags that don't match any pages aren't deleted: I'm not sure
+ that that's a good idea anyway, though. Similarly, transient autoindexes
+ of directories that become empty aren't deleted.
+
+* In my `untested/transient` branch, new aggregated files go in the
+ transient underlay too (they'll naturally migrate over time). I haven't
+ tested this yet, it's just a proof-of-concept.
+
+> I can confirm that the behavior of autoindex, at least, is excellent.
+> Haven't tried tag. Joey, can you merge transient and autoindex? --JoeRayhawk