This new version does require the use of some upgrade scripts, and as far as I know they have not been tested really thoroughly (but "should work"). However, there are some nice improvements in here, and this is the first time in over a year there's been a repository for ACS 3.4.x code.
Malte, THANK YOU for setting all this up!
I'm really looking forward to getting some feedback on the Intranet code. There are some more improvements I should upload eventually...