RunUO 2.4 changelog:
Fixes to bola. Bola mount fix. Rider null check (bola). Fixed bola target cancel on mount.
Keg to treasureChestLevel4.
Range check mobiles, return home. On OSI they just delete and respawn. We will try to be a little more graceful, and see if we can walk back.
Fixes to miasma special moves.
Fixed NameChangeDeed so it doesn't allow invalid names.
Should not animate mobiles if mounted.
Paragon stam regen fix, return mobiles to spawners.
ML quest system (many changes, but not 100%).
Some fixes to DragEffects.
Animation fixes.
Updates to spawner, added area which works with range, comments reflect such. Added accessor for basecreature spawner, since home may no longer find the spawner.
Discard Spawner setter. various fixes to dismount, pets, bolas, specials,
spells...
Added Holliday stuff, Valentine's 2007, 2010, 2011 and 2012.
Verified some drop rates (Kirin, Unicorn and Pixie).
Pixie legs are edible.
Renamed ML regions to match EA.
Tweaks to champs. Adjustable spawn count, added proper special to interred grizzle, bumped miasma's skill.
The bag of sending will now reject nontransferable items.
Added HS boat movement.
Fixes and improvements to parallelization.
Client 7.0.33.1 support
Tons of small bugfixes and small improvements.
CONCLUSION:
The 2 BIG changes in RunUO 2.4 against RunUO 2.3 are ML quests and Client 7.0.33.1. of course, many small bugfixes that are always welcome.