Version 3.0 Update 4
Overhaul: The War Declaration UI has been completely reworked. It now displays the total strength of the vassal participants on each side, the reasons for why a vassal joins the war or declines their call to arms, and the vassal's primary title.

New Game Rule: Title Holders - When a vassal would lose any of their titles as a result of a war, they will be called to arms.

New Decision: Enable/Disable Call to Arms - You can now disable your vassals from being called into your wars temporarily by using a decision, which can help you avoid War Exhaustion penalties.

Adjustment: Capturing direct vassals of a war leader will now grant 2% war score for each vassal captured by the opposing side.

Adjustment: Each time a civil war happens in a realm, vassals will receive an "Internal Turmoil" opinion penalty to represent the recent instability. There is a new game rule added to disable this.

Adjustment: War Exhaustion penalties now vary based on why a vassal was called to arms (i.e if they are just bordering the enemy realm or if they have a vested interest in it).

Mod Support: Added a global variable for More Interactive Vassals that other mods can check using "has_global_variable = miv_is_loaded", which should make compatibility patches easier.

Version 3.0 Update 3
New Game Rule: Defiant Vassals - Vassals can refuse to join a war based on their relations with their liege, and can also block their own vassals from joining.

New Game Rule: Treacherous Vassals - When allied with the opposing side, vassals can be called to war against their own liege and vice versa.

Adjustment: The war declaration UI will now indicate which vassals decline their call to arms, rather than not showing them in the list at all.

Adjustment: Civil War Rebalance - More vassals will remain neutral during civil wars.

Adjustment: Off-by-default game rules now indicate the default value for clarity.

Version 3.0 Update 2
New Game Rule: Garrison Size - The size of all garrisons can be reduced by 25%/50%/75%/100%, shortening the time it takes for an army to siege a holding.

New Game Rule: War Participants (Off by Default) - War participants who join a war after it starts can call their own vassals to arms, though with much weaker obligation.

Adjustment: Opinion Modifiers can now stack, calling vassals into too many wars will greatly decrease their willingness to join you.

Fix: Peasant uprisings and similar levy-based rebellions will now scale based on the Levy Reduction setting.

Fix: Cleaned up a lot of the mod's code. Error and debug logs should now be a lot cleaner, and game performance should be smoother as a result!

Version 3.0 Update 1
New Game Rule: Levy Size - Levies from all sources can be reduced by 25%, 50%, 75%, or 100% to place more emphasis on the Men-at-Arms counter system and reduce overall army sizes.

New Game Rule: Levy Reinforcement - The rate of levy replenishment can be reduced by 25%, 50%, 75%, or 100%, making losses from combat more impactful.

New Game Rule: Bannermen (Off by Default) - All direct vassals are eligible to be called to arms, but with a much higher chance of declining based on several factors.

New Game Rule: Indirect Vassals (Off by Default) - In a civil war, a vassal may call on their own vassals to support their commitments to the loyalist or rebel factions, who will accept or decline based on several factors.

New Game Rule: Levy Contribution - The amount of levies that vassals provide to their liege is reduced by a multiplier of 25%/50%/75%/100%.

Adjustment: Updated the descriptions for the custom game rules in this mod.

Adjustment: Added a new game rule category to organize the custom game rules in this mod, making it easier to find and configure them in the settings menu.

Fix: Removed the custom Casus Belli from this mod, which should greatly improve mod compatibility with all total conversion mods (AI declaring war on the wilderness, ruins, wastelands, etc).

Fix: Realm Stability Game Rule not able to be changed from "Default Stability".

Fix: Removed an invalid modifier from the Call Ally Interaction.

Fix: Max war score from battles is now set back to 50% for attackers, rather than 100%.

Adjustment: The AI will underestimate the enemy less when considering war declaration to account for vassals joining.

Fix: Improved mod compatibility with Lord of the Rings: Realms in Exile, added checks to prevent the AI from declaring war on the wilderness (uninhabited settlements that can be colonized).