I tried to send you a save file via email-contact, but my save files have like 60 mb each. So, i did sent it to you via some extern provider. And i forgot the log files, as i was not aware, that you need them.

Can we please get retroactively 1.08C on GOG download so we can update to 1.09 without downloading the whole game again? Right now there is only 1.08B available. When trying to update to 1.09 the update package says the current version is wrong. Presumably because it is 1.08b and not 1.08c. Since that is not available...

i always do it via galaxy. i had this problem on some other game before, that when trying to install a game manually and then putting in the patches, the game was broken.
Since them, galaxy does everything without my doing for me. and it works better.

If I wanted to use always-online game management system, I had bought the game from Steam.

you do not need galaxy to play it. Just for the installing. I often turn off galaxy during the game, as it needs some resources, which i needed the game to run more smootly.

Oh, thank you!
We've got a 1.0.9c full download. If gog team could provide patches too, that'll be a victory!
Also, if you have some contact there, could you please ask for a pre-order bonus too. We still don't have it available(yes, a bunch of tickets from different users were sent to gog support).

Oh, no, sorry for misleading you, it's not a missing DLC in-game.
It's a GOG.com um... feature. You can download pre-order bonus for mac and windows, but not for linux.
GOG simply offers a windows version of a DLC or say unavailable for linux.
So I believe it should be fixed on GOG.com side.
If you still think it should be sent to technical@owlcatgames.com, I surely will do. just don't want to steal your time from developing.
I've attached 2 screenshots showing different ways this missing is displayed.
p.s.: there are couple of threads on this forum, and it seems som other DLC's are unavailable on GOG.com for linux. I can't say for sure, as I have(should have) pre-order bonus only

Nope, sorry. There is a link to download "Pre-order Bonus" for version 1.0.9c+ with Linux os selected(as on screenshot), but it offers to download windows version:
Let's just check:
$ file setup_pathfinder_kingmaker_-_pre-order_bonus_1.0.9c_\(24476\).exe
setup_pathfinder_kingmaker_-_pre-order_bonus_1.0.9c_(24476).exe: PE32 executable (GUI) Intel 80386, for MS Windows