The patch is on GOG but the hotfix isn't. For some reason it doesn't show an update notification, but if you go to Pillars of Eternity in your library, the patch is there.
Although this isn't mentioned in the patch notes I have a feeling the maximum zoom in amount has been increased. I actually like it that way.
Ah yes thank you I see it now. It doesn't show on the icon for Pillars that there is an update, but after clicking on it I see the patch (but as you said, not the hotfix). What issues exactly does the hotfix correct so I can avoid those until it comes out for GoG.com?