spirit_nz Yes, that's correct. There's nothing in your dxdiag that would definitively explain the Sims 4 crashes, or a system crash for that matter, although a component of Killer networking software is crashing. We can put that aside for now though.
Have you only had the one crash, or have there been multiple crashes since the patch? If multiple, is there any pattern to the crashing? For example, it might happen on the same lot every time, or when your sims are traveling, or when they're doing something specific, or even at a particular time of day in the game.
And when you say the game reverted to New Year's Eve after the crash you mentioned, was that the last time you successfully saved, or did you save after that but the progress disappeared?