Startpos changes:
Norman Sicily now Playable
Overhauled southern Italy Starting Positions to reflect time period
Added Benevento to Southern Italy (at war with Sicily)
Byzantines at peace with Sicily
Hungary peace with Poland, war with Croatia
Lisbon is now controlled by the Almohads (historically accurate)
Portugal at war with Almohads
Zaragoza is at war with Aragon
Changed Firenze to Republic of Pisa, they lose Spoleto region
Denmark military access/non-aggression with Norway (in Scotland)
Denmark peace with HRE
Welsh factions are now defensive allies
England is at war with Brittany (historically accurate)
New faction Maine (Client of England in France)
Bugs and balancing changes:
Increased unit upkeeps all round (Knights now have especially expensive upkeep)
Removed fatigues due to winter (as winter happens every other turn)
Obotrites are now Lithuania
Removed missions (as they were just the ones from Charlemagne)
Increase tech time so high tier units aren't available till ~1140 AD. This still isn't quite historically accurate, but it wouldn't be fun if you had to wait longer.
Fixed Poland and Obotrite armies not recruiting
Removed tech requirement for religious order troops
Fixed some text errors
Added new custom faction maps to selection screen
Religion Changes
Fixed certain christian cultures being barbarian
Changed religion of Hungary, Denmark, Flanders, Poland, and some minor factions from pagan/tengrism to Christian
Changed starting region religions to match faction, so no more ridiculous religious unrest
Garrison Changes
Added barracks to certain factions at the start so they can recruit better units
Added better garrison units at higher levels of buildings
Added unique garrisons for each faction
Slightly buffed starting garrisons
Added Medieval Army Models to campaign map