I dont think this is necessary with most files. But when you start changing template files and style sheets, it would only be a basic courtesy to let people know what the changes were, since these are the files that most people would have changed when moving away from the look of the "out of the box" template. If you had some kind of basic documentation, this upgrade would take an hour. Without it, it will take me over a week to (unnecessarily) remodify all my template files, and I suspect it would be all for nothing since I've already fixed most of the errors you had in those files.
To everyone who is voicing the same complaint...... Simple solution: accept the program as it is, or just don't do the upgrade.

OR do what I am doing, and don't make extreme mods until the features are fleshed out.

I'm surprised how demanding people get on a $10 program. You should go buy one of the $250 scripts out there and work with that. This way, you never have to worry about new features being added, and instead of getting radically upgraded versions for free, you can just take the annual $100 upgrades.

I keep buying more copies of this script, because I can see that the programmer has vision, and listens to people. I know I'd never be able to moderate this board without ONCE in awhile bitch-smacking someone. I notice Admin never loses his cool.

Much much more than $10 would ever buy from me.... just my 2-cents.