Ancient-Red-Dragon: And, is this game on GOG still missing the Steam Workshop-exclusive mod that the devs made and published which shows the "chance to hit" percentage?
It's available on
Nexusmod since more than two months now, for all game versions, uploaded by a third party however. In July a updated version was added.
There's a bunch of
other mods as well
Ancient-Red-Dragon: There is no reason for game versions to be numbered differently on GOG
unless their files are majorly different too, and the only reason for that to be so is if the GOG version is missing content and/or features.
So that's not merely a "usual discrepancy" as in the different numbers are a benign thing that makes no difference; rather, they are indications that the GOG version is missing something, or many things, and therefore worse.
You're jumping to conclusions again without knowing all the facts.
What we see here (in the gog upload log) is the number given to the GOG galaxy framework, not the real version number that is used in the game internally. "1.1.1a'" displayed on Galaxy / offline downloads was never the real game version number displayed when playing the game, the real version was "1.1.1.340446". There is no such thing as "a" in standardized version numbers, the number "1.1.1a" was given by the person who managed the upload.
The current version after the patch displayed in the game is "1.2.0.343131", the game's changelog lists it as "1.2" (see attachment).
But even if the ingame version number was different: Version is nothing but a sequence of numbers, doesn't mean much. Any speculation about the reasons is just that: speculation. The version number of Alan Wake differed for quite a while on all platforms. It was complete chaos.
Prejustice never did any good. Once in a while try to evaluate facts without being angry or disappointed or whatever state you chose for yourself.
edit: added links to the mods.