Here's a list of things that have been done so far:
Many changes to spell animations.
Spell screen flickering in combat has been greatly reduced.
The jewels now scale in usefulness. The later ones give higher stats.
Searching for items after a battle has a 2/3rds chance to give you a random item ( like a chest ) and a 1/3 chance to give you an item equipped by an enemy. This makes searching for items a more attractive choice.
The bonus to counter while defending was changed. Now the base chance to counter of your weapon is increased by 50% if you're defending. so for a sword with 20% chance to counter it's 30% chance to counter if you're defending.
Items have a reduced chance of disappearing from shop inventories every battle. It's 2% now, was 5%.
There is now an option to turn on enemy respawns and I'm thinking of totally removing respawns since it wasn't in line with the game design.
Archers now can learn Wizardry at level 6 instead of sorcery at level 8.
The game will now spawn books of sorcery, invocation and wizardry.
Wisdom now gives 0.3% extra experience per point instead of 0.2%, also everyone has at least average gains per level with wisdom.
Wealth is learned earlier for all classes and now everyone has at least average gains per level with wealth.
Dwarves now get average magic growth per level.
Various tweaks to the unit classes in terms of when they learn skills.
Poison strength was reduced and no longer bypasses wall.
Clarified some skill descriptions.
Fixed some minor AI problems.
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Things I'm still working on:
Weapons must be range 3 or greater to move screen. This is to reduce the screen jerking around so much.
Strength opens locks at 2x lock power. You don't always need someone with lockpick to open locks, someone with very high strength will do.
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Things that I'm still considering:
*Maybe* autosaves
*Maybe* traps, would be disarmed by rogue skill ( probably change lockpick to rogue skill )
*Maybe* autobattle option, there would be some kind of penalty like less gold or something
*Maybe* stealing from shops
*Maybe* movement cost for terrain
Here's the forum post and you can comment there if you want: Patch 1.5 post