Current version of
Sims 4 is
1.69.59.1020. Last update they did was that skintones update in early December 2020.
Best way to keep updated without doing a full download is always Anadius's updates. He has torrent setup so you can either download everything or just the specific update you need.
You must be registered to see the links
You can download the updates from that torrent, which are usually a few gigs... or he has his own auto updater he made that is able to download them a bit smaller... but I prefer just to get them in the torrent and run his setup installer.
His forum post about how to use his updater.
You must be registered to see the links