For those who are not in the know: where is the complete list of differences between the two versions?

It's in the same place as always: on the heroeswt.net website and in the readme file after installation.

I took the least controversial changes for version 0.5, because the CIS-2012 tournament will be held on this version.
By the way, Mee is actively preparing for this event: he has almost found sponsors, and thanks to his constant urging, I finished the version.
I also want to implement the other changes, but more gradually.

I don't see any logic, to be honest. And it's already been half a year since these changes were discussed.

I was advised to use a script to display the route literally an hour before the release of pHOMM, so I implemented it.

That's what I figured. It's just funny: I just uploaded it, and a couple of days later I see the script in the list of changes. I spent about 4 days in the debugger to find this table.

Is kostya76 your nickname on the forum?

Yes.

Could you send me the script fixes via ICQ or somewhere else?

I can't make it work with the darkening effect so that it works on the other side. I'll make it so that at least the error doesn't pop up, or I can just remove it for now. This code in script 04 is at the beginning; there are comments there.
And removing Mullich: in script 04, in line !!UNy4=144:Ov488/v489/v490, add & to the condition.