Re: The Sims 4 - Mac: Game Won't Update

There are two things to try.

1) Try resetting Origin. 

2) Try moving the entire Sims 4 folder to your Desktop. Since you didn't tell us if you use Mods or CC, outdated Mods and CC will cause the game not to start or update. Do NOT delete this folder as it contains all your saved games. If the game updates then before adding back your saves and other content, start the game and create a new Sim. Play for about an hour to make sure no other issues are present. You'll need to check with the websites, blogs, sites that you downloaded your Mods and CC from to make sure they are compatible with the latest update. 

Please report back.