If you're still looking for an answer, no, nothing's been fixed. For crashing issues on Macs with integrated graphics chips (Intel HD or Iris Graphics), it can help to play in windowed mode and/or to turn the graphics settings down to the minimum. The game also apparently crashes a lot when people try to place a household that contains a pet, again just with Macs that have integrated graphics chips. So far I don't know of any fix other than to not create households with pets.
If you do find a way to play without crashing, whether it's some combination of settings or something else, it would be great if you could share it either here or on AHQ. A number of people have said that playing on the lowest graphics settings helped, but they haven't posted back to say whether raising any particular setting causes more crashing, so I have no idea which settings are responsible.
It would also make a potential fix more likely (how much more likely, I have no idea) if EA knew which setting or settings were causing crashes on which hardware. Right now, there are a lot of deviceconfigs and a lot of error reports, but nothing definitive enough to pinpoint the cause.