I have a fairly basic doc management scenario involving categories, I'm trying a fresh install of community edition, but when I go to category manager instead of the predefined categories in the manual it's empty.
It was the binary installer on linux (ubuntu server) latest version community edition 4.0.d
I wiped it out and installed again - and it is indeed fixed. Just suprised that there were no install errors from the first attempt and everything appeared to work except categories.