Cumulative Patch C is out:
http://sanguoforciv4.googlecode.com/files/HoTK_V2.4_Patch_C.exe
It's save game compatible, however, the worker clearing swamp fix will only take effect if you start a new game.
change list:
0.280:
fix Flying General promotion bug that no matter who the hero defeats he will restore movement point
fix bug even has tech prerequisite worker cannot clear swamp.
fix CTD when AI delete a transport ship that contains legion core troop.
fix a bug when player choose 'promote from veteren soldiers' in the 'pick a hero' screen no random hero is created.
fix a text bug when fighting an enemy unit with 'Do-or-Die' promotion run strength modifier is shown in combat odds help area.
0.281:
fix in 196 big map Zang Ba hero wrong placement (missing hero type)
fix in 196 middle map Sha Mo Ke don't have palace
fix a bug in Morale Promotion's second attack target choice which could lead to CTD
fix Runner Promotion's retreat destination choice bug
fix a CTD when hero choosing a new promotion as nine transformation, if no new promotion is available
fix a bug sometimes The rogue of white wave will not sprawl
in main interface hero buttons increase from 4 to 8
use 'shield' icon to denote legion member in main interface (formerly used for champions)
Unstoppable and Fighting Withdrawal promotion now will require a 80% combat odds for a unit to initial extra attack