Balance changes and polishing, too many minor tweaks to mention.

Easy is now a little bit more difficult. Hell is now rather less impossible.

Multi coloured barcharts...

The initiative queue is now less random each turn, so less double turns (guy at end of queue sometimes gets to go first next turn)

If you have been ambushed, you no longer get set as a moving target. (ranged to hit malus)

Enemy leadership improved, bigger penalty to morale if one dies (same goes for your team)

Healing Touch gets a new icon

Lots of work on AI for ranged fire. If threatened they will now run away, but also try and get a good shooting position.

Enemy ranged fire made a bit better.

Jabberwork combat improved greatly (can't regenerate so much, screams less)

Demo updated too, and is now live! You can play the whole first act, but only on Easy mode.

Lots of balance changes - main change is that difficulty now scales not just on numbers of enemies faced. Playing on Hell level could leave you fighting 100s of enemies - you will now fight a more reasonable number, but their stats will improve.
The same is true at easier levels. If the fight is against a single enemy, and the fight is judged too difficult, the enemies stats will be reduced somewhat.

Unlocking should now be fixed - hopefully, anyway, as I can only test this live in Steam!
(expect another fix in very short order if it is not)
The more you play, more artefacts and heroes will be unlocked. There is a screen showing your progress after every victory or defeat.