would be nice if game installers had a versioning system.
for example, Arcanum setup GOG r3.exe
and tell us what is the latest GOG release, and maybe notify us if it is updated.
It would ensure we always use the latest version and don't suffer from problems that have been fixed without our knowledge. Currently there is no way to tell if it has been updated (unless you follow the forums quite closely) and it is just safer to always redownload before installing.

If you right-click the executables and hit properties and go to the details tab there is a version, but GOG isn't really publicizing whether or not they're using that version number. I think they are, but I could be wrong.

EDIT: But you're entirely right, we do need some way to know if there has been a game update.

+1

If I'd missed the news post about Myst and Arcanum I'd never have known. The update fixed my Myst issues so I'm really happy.

I must admit it would be nice to have a "Last Updated On" on each game page.

Why settle for that? An actual version history with the changes to each version specified would be much better. If it's a game of a couple of GB, and the only change made is "Fixed an issue with NVidia 8800 GTS cards" and you happen to have an ATi card, then there's no need to redownload the game.

100%. It would make a huge difference if each game had a page (say http://www.gog.com/en/changelog/) which lists every version released from a certain point, containing the version number, release date, checksum, and a short summary of the changes.

Couldn't agree more with the OP. I have all GoG games on an external harddrive but I always re-download a game when I want to play "just in case" something has been updated. It would be nice if I didn't need to do that if I knew nothing had been changed and the best way to this would be a version number or a change-log.

That I totally agree with. There must be a way of informing us if the game has been updated since the last time we downloaded it.

This would be enough.

it would be really nice.

I'm waiting for them to fix Disciples II for Win7 64.... :)

I'm bumping this in total agreement.

+1 to the OP
This is the most useful suggestion in a long while

+1 for this.

+1 for this as well. Even a simple stickied forum topic with exenames/gog version that is updated by staff once every month or so would work if site changes are harder to implement.

But ideally a changlog is best.