Updated mod for the various patches since the last update.
Further reduced some military bonuses
Increased levy toughness from 10 to 11 to make them somewhat more relevant

Slightly less legitimacy is inherited (24% instead of 25%)
Province opinion modifier for cultural acceptance now tops out at -20 instead of -15
First legacy perk will cost less, 2nd the same as before, 3rd and on will cost more
Artifacts will decay a bit more
Theocratic leaders can use legends and have legitimacy
Reduced opinion bonuses for way of the nomad
Irritable offers less prowess
Both tracks of traveler trait give wanderer lifestyle xp (only slightly more total though)
About half as much prowess for children from one more hill lifestyle perk, but somewhat more traveler xp
Events that give prowess generally offer half as much, or are half as likely to give prowess

Organizer commander trait tops out at +30% movespeed instead of 40%
Many bonuses from yurt buildings adjusted down
Yurt buildings about 10% slower to build
Nerf raiding movement speed and hostile county attrition reduction from organize raiders kurultai task
Difficulty now affects herd gain, max herd size and county fertility
Lowered prowess from wolves of the deep steppe cultural tradition
Prepare raids court position task offers less raiding movement speed
Fixed some missing bonuses for king, emperor, prestige, and basic skills that got added in 1.16
Thoughtful lifestyle perk gives +50% opinion for herd gift now just like regular gifts
Demand obedience costs much more prestige and gives much less opinion bonus to all belligerent vassals
Accommodating tributary (foreign emissaries court position task) now gives half as much cultural acceptance

Updated for 1.16
Only new change is the new MaA added for the steppe were nerfed in line with the other MaA nerfs I already did (just so they wouldnt be abnormally powerful)
I will look into fixes for the Steppe next, some ridiculous stuff there

Less gold for killing peasants in battle from the various perks that apply to that
Recently looted province modifier affects control, development, and travel safety a lot more
Lifestyle xp from camp buildings brought down to more reasonable levels
Children gain less influence
Several terrain based cultural traditions now offer a minor provisions cost reduction for that terrain

The khans will also be conquerors now. removed some overlap of the khan trait & modifier with conqueror, but it should still be a buff to the khans
cultural traditions desert ribats and sorceress metallurgy prowess brought in line with other traditions
Lifestyle perk Veteran Explorers loses some supply duration but gains some travel safety and speed to fit the name better
Reduced the opinion gained from *not* fabricating a hook on somebody via your spymaster. They're grateful, but not that grateful. (30 down to 10)
Dedicating artifacts will offer half the opinion bonus
Knight Errant trait nerfed
The Skills, army toughness, and knight effectiveness gained from camp temperament reduced
Slightly fewer knights from title tier, prestige, and martial skill. The AI doesn't benefit from it as much as the player does because they struggle to recruit that many knights
The MaA camp positions for specific MaA types now offer less bonus MaA damage
Camp stooge now has the same tasks as the court jester
Bodyguards should always have their tasks available (terrify your followers if you feel like it)
Camp Priest can use the attend poor court task that's also available to Court Almoner
Camp Cook can use the brew poisons task from the court food taster
Head Groom can use the tasks from master of the horse court position
Camp Armorer can use the martial focused task of court artificer
The dynasty opinion bonuses from artifacts, dynasty perks, and estate buildings were partially shifted to house opinion
Being a crusader gives some extra glory hound and zealot vassal opinion but comes with negative parochial vassal opinion

Recruit guest is no longer greyed out if you cant afford the gold cost, but you can afford the influence cost
Cabinet of Curiosities estate building offers less learning and stewardship because it was insane
Diseases affect county supply significantly more
Couple of minor artifact mods were adjusted
No quarter dynasty perk changed from siege progress to heavy infantry pursuit, hostile county attrition
Being a Marshal provides 1 prowess instead of 1 prowess scaling with the title tier of the liege
Train for tournament now takes some gold as well as prestige
English and Norse cultures more likely to use train for tournament as well (it had a bonus for various cultural traditions that now includes hirds and coastal warriors)
People will be willing to join holy order or become monk if they are eunuchs, disinherited, or bastards
Can no longer retire governors you have truce with. Just like you can't revoke their titles

Updated Martial affecting number of knights and amount of knights per title tier to be more in line with the unmodded version of the game. (still 1 more for kings, and 2 more for emperors though)
Difficulty now affects knight limit
Reaver commander trait doesnt offer as much hostile county attrition reduction
Lowered knights damage per prowess from 100 to 80
Lowered the base damage and toughness of all MaAs by about 20%. So the location bonuses for MaA will be relatively more valuable, as will levies
Brought Varangian Veterans more in line with other heavy infantry (they're still better, and still more expensive than the amount they are better. Just less extreme on both fronts)
Legendary Buildings offer smaller bonuses
Opinion bonuses for family are slightly lower
Further nerfed prowess and attraction opinion from artifacts
Reduced witch same opinion mod from 20 to 16 so its just slightly more than the crime opinion (-15). This way it's less overpowered
Education traits now come with 1 negative skill as a very small push towards people specializing
Personality traits give more positive and negative skills also to push towards specializing
Herbalist and Gardener were nerfed
Court position aptitude thresholds raised slightly. It should be somewhat harder to get excellent in everything
The bonus to demand conversion for state faith has been halved
More temporary modifiers brought in line with the rest of the changes
Winter correctly affects provisions usage now (I had changed it before provisions were a thing)
Reduced prowess from cultural traditions Warrior Priests and Warriors by Merit. Added some knight effectiveness as a replacement

Updated for 1.15. Haven't looked into any changes just yet

Just updated for the new ck3 version so you're not missing any of their great new changes