December 31, 2015 -- You may add or rearrange objects on community lots and add club hangouts. You may not bulldoze community lots except for the ones permitted.
February 8, 2016 -- Changed "must be good friends with 3 townies" to "must have 3 other good friends."
February 10, 2016 -- Using the Wishing Well to ask for Youthful Vigor is banned for heirs and founders. Other than that, you may use the well at your own risk.
April 14, 2016 -- Sims may be added to a household only by being born, adopted, married, or asked to move in.
June 3, 2016 -- If you want to customize the gender of any of your sims, you may do that once, as teen or YA. Gender changes are irreversible, however. And keep in mind that your heirs need to be able to reproduce.
June 9, 2016 -- If you have Dine Out, you may substitute a restaurant for a retail store in the Retail Option. The requirements to complete the option are that the restaurant must be able to sell for $100,000 or more and have a 5-star rating for 3 days (need not be consecutive).
June 11, 2016 -- You may alter menus only in restaurants that you own.
July 18, 2016 -- Until the bug that causes Sims to become ageless if they meet a Nanny is fixed, hiring a Nanny is banned.
July 27, 2016 -- Since the bug that affected the Nanny has been fixed, Sims can now hire nannies.
November 8, 2016 -- You may play in San Myshuno, as there are 19 lots with deposits less than $20,000. You may not bulldoze apartments, though, and you will not be able to use the Mansion Baron option.
November 9, 2016 -- You may add one skill-boosting lot trait (See list) and two other lot traits to each house.
Your Sims may form a family club, but they may have only the Networked perk or one skill-boosting perk, not both. Your Sims may join other clubs, but not found them.
January 15, 2017 -- A nanny must be hired if there's a baby or toddler on the lot when the last teen or adult leaves. In heir requirements: As a toddler, the heir must max potty training (3 levels) and two skills (5 levels).
January 17, 2017 -- Babies may not be aged up early. Toddlers, children, and teens may be aged up as soon as they've completed their requirements. In the teen's case, this consists of all the requirements for moving out.
January 29, 2017 -- Vampire option and Vampire hunter option added. Restrictions for vampires added.
February 3, 2017 -- Added lots from EAaccount MaxisCreator_01 to the list of buildings that can be downloaded.
November 8, 2017 -- Added Vet Clinic to Retail option
November 11, 2017 -- Made changes to the section on Culling.
November 12, 2017 -- Added Pet Lovers Option.
July 2, 2018 -- Added Guidelines for Seasons
August 23, 2018 -- Added the rule that holidays may not be changed once they've been added.
December 6, 2018 -- You may opt out of the fame system and choose it for individual Sims only. You're allowed a one-time use of the quirk removal potion.
August 14, 2019 -- You may use CAS Stories for your founders, but if you use it for one, you have to use it for all three.
September 7, 2019 -- Teens may complete level 5 of Scouting or the Drama Club instead of reaching level 3 of a part-time job.
November 29, 2019 -- 2 new bloodlines added: The Spellcaster Bloodline and the Well-Educated Bloodline.
January 21, 2020 -- Note added to the Well-Educated Bloodline: You may switch over to a household in this bloodline at 4 pm on the Saturday before you're due to play that household long enough to enroll in University.
Jaunary 21, 2020 -- The Tiny Lot residential lot counts as a skill-boosting lot trait.
July 21, 2021 -- The heir must achieve a unique aspiration in addition to any required by his or her bloodline. He or she may not switch aspirations until that aspiration has been achieved. No heir in any other bloodline may achieve this aspiration. Depending on what bloodlines you're playing, these could include Mansion Baron, Animal Lover, the Vampire aspirations, the Spellcaster aspirations, or the Academic aspiration.
September 18, 2021 -- Update Money Offer "You look Low On Funds" - You Must Decline Offer
April 1, 2022 -- For a new or existing dynasty, you are allowed to select your global Neighborhood Stories System (NSS) settings for both "My Households" and "Other Households" one time only, after which they must not be changed. Changing NSS settings for individual households is not allowed.
July 9, 2022 -- Neighborhood Stories System settings are player's choice.
July 8, 2024 -- Werewolves Bloodline option added.