Hi @ChelleJo and welcome back. ??
You may want to check out the patch notes forum for the latest patches and free game updates.
https://forums.thesims.com/en_US/categories/latest-patch-notes
ETA: We also have a new category of updates. Sims Delivery Express (SDX).
https://forums.thesims.com/en_US/discussion/994945/sdx-new-delivery-march-24-tattoos-and-more/p1
Also, the My First Pet stuff pack is free to download now through January 9.
https://forums.thesims.com/en_US/discussion/1011829/my-first-pet-stuff-now-free-on-pc-and-mac-offer-ends-january-9/p1