DoctorGOGgles: Made a support request for that today.
...and another support request for the outdated Linux version of Broforce...
...and another support request for the outdated Linux version of Victor Vran...
...and another support request for the outdated Win and Mac and even more outdated Linux version of Don't Starve.
Four open tickets. Let's see how long GOG support will take to react...
edit: Make that five open tickets. Not Linux related, but I've filed another one for the missing updates and missing price drop for POLLEN (price for the game was permanently dropped from 25$ to 10$ on Steam two years ago, but it's still 25$ on GOG)
Ganni1987: Thanks for taking the time to do that. I've emailed Haemimont regarding Victor Vran myself a month ago, didn't receive any reply at all and they're usually very supportive of GOG.
I've received answers to 4 of my support tickets today (Haven't received an answer about Door Kickers yet).
The problem of the missing Victor Vran and Broforce updates for LInux was forwarded to the product team, which will contact the developers.
For Don't Starve the problem of the Linux version being behind compared to the Win and Mac version on GOG has also been forwarded to the appropriate team (probably the Linux guys at GOG).
The problem that Don't Starve is generally many updates behind compared to Steam seems to be because some updates are tied to the Hamlet DLC, which is not on GOG. They're looking into getting the base game and DLC available on GOG to the latest version possible.
The problem with missing price drop and missing updates for POLLEN was also forwarded to the appropriate team.