Repeat one activity too much and a tolerance builds up, so it's ideal to provide a "variety of joy sources." I think perhaps describing something as your 'joy source' doesn't happen nearly enough, daily.
There's a new outfit system too, and we can now enforce a seasonal dress code. Colonists will seek out better apparel to wear and replace damaged gear if better is available. Manually appointing the stuff however means those colonists will wait until they're given permission.
Timetables can also help manage what our fledgling community does each day, or let them go figure it out themselves. This might be a great way to keep certain troublemakers 'out-of-rotation' from the others. Also, beer can now be "wielded as a weapon" - just like brewers intended.
"Also note that this build will not load old savegames or old worlds, so please don’t try to load these in the new version. They’ll probably just crash the game," warned creator Tynan Sylvester.
Check out the RimWorldfor more changes.