-Sims will no longer have the option to call vacation service NPCs after acquiring the business perk "Head for Numbers" which was causing a crash.
Avoidable, don't call tour guides and chefs. Why you would try to in the first place is beyond me.
-Sims will no longer have the option to "Call Taxi" using their cell phones if they have driven to the community lot with an own-able vehicle which was causing a crash.
Avoidable. You know how you got there...the car's at the curb. Why bring out the cellphone?
-If the Sim misses the shuttle, it will no longer return to a vacation lot without the Sim at the end of the vacation. Sometimes, this caused the vacation lot to become unusable.
For me, the shuttle-related annoyance is that, if you end vacation early, it will try to pick your sims up again after dropping them at their home. Either way, a fix would be appreciated.
-Periodic Events Controller will no longer loop twice per hour through each neighbor which was causing extreme lag on certain machines.
Ditto the above. I still wonder if it's doing playable neighbors or all character files.
-Autonomous water-balloon and snowball fights have been tuned so the interaction will occur less frequently.
There are many no-autonomous hacks for this. TwoJeffs may have them (he does some similar), Monique...look around.