Prophetess and Enchantress unique skills now reduce upkeep for Grail Reliquae and Battle Pilgrim units by -5% and -10% respectively

All Tavern chain buildings now give a small amount of income (25/50/75) and the Brothel now gives 150 income up from 80

Improved Smelters gives Foot Squires -10% upkeep

Blessed Blades no longer buffs Foot Squires
Foot Squires benefit from Wardens, Expert Blacksmiths and Banner Carriers (+1 Recruit Rank, +4 Melee attack and +4 Leadership respectively)

Royarch's command now reduces Men-at-Arms upkeep by -10% up from -5%
Wardens reduces upkeep for all Yeomen units by -10%

Farms cost 250/500/750 to build up from 200/400/600

The Fay Enchantress faction trait now gives +10% income from farms instead of -5% upkeep to sword infantry

Slightly improved the replenishment from the Improved Mills and Empathy techs

Vows now give a -10% upkeep reduction for their corresponding knight units
Industry income reduced from 200/300/400 to 200/250/300
Industry techs give slightly more income to compensate

Developer thoughts:
Vows are still purely beneficial, rather than preventing a massive upkeep toll, but this should keep them useful at gatekeeping late-game knights to some small degree. To ensure this is the case, industry is weaker in the early game (but still better much better than farms, especially if you are deep enough into your campaign that you have all the techs for industry)

Changed the building chain icon for Royal Chapter Barracks, they now feature a Tower shield on each of the tiers.