• The option for your father to be murdered has been updated so that the murderer makes sense (they're an adult who is the type of personality capable of performing such an act, or who has a good reason) and the option only appears in the first place if there's a valid murderer available.

Updated for the 1.12.4 patch.

Updated for the 1.12.3 patch.

Updated for the 1.12.2.1 patch.

Updated for patch 1.12.1.

• If you link yourself to an existing dynasty, and have the ability to create your missing parent, they are no longer restricted from themselves being linked to an existing dynasty.
  
• Characters that are from outside your culture group (such as how you can do with created in-laws) now may be linked to existing dynasties of their own culture, instead of solely to those within your own culture group.
  
• Fixed the tooltip on in-law creation which incorrectly showed the upper age range of your spouse.
  
• Fixed a spouse created after making the in-laws showing culture/religion selection in the GUI.

• Changed default game rule to be decision only - the Create Family character interactions are only available to the player if they specifically change the game rule to allow it.
  
• Characters that are given illegal flaws will be immediately forgiven by their current liege.
  
• Added some logic so that you can't give both a secret and the associated trait at the same time, and that the flaw traits only show as available when appropriate.
  
• Added a quick fix so that using the "Special" category for trait modification while having the AGOT mod loaded caused the game to crash. It now works fine, and as an added bonus also offers the AGOT-specific lifestyle traits.
  
• Fixed some minor loc bugs.

• The once-per-dynasty limitation on the Reflect on Your Family decision is now once-per-house instead.
  
• There are now two character interactions (you'll find them in the Uncommon, or right window, under the Personal category) called 'Create Family' and 'Create Random Family'. This first allows you to use the regular event chain to add parents and siblings to any courtier or landed ruler, so long as they or age 50 or below and have a dynasty. The second interaction has the characters created randomly, without your need to make selections, with 0 to 3 siblings created. Both of these are subject to the once-per-house limitation.
  
• Added a game rule to either restrict players to solely using the decision, using that decision only within the first year, or even loosening restrictions and getting rid of the once-per-house limitation. There's also a game rule to completely disable ANSF, for multiplayer games where ANSF is included with other mods.

• Added a label to the new parameter button, so it's more noticeable.
  
• Added the new parameter system to the "other parent" when creating a half-sibling.
  
• Fixed a couple of minor bugs.

Just fixing a couple of minor bugs I noticed too late.