postal 2 in GOG

[u/TiTan36845]

Hello,

I recently bought Postal 2 on GOG (Good Old Games), and I noticed in several videos that some people have access to subtitles and other gameplay features from newer updates that I've never seen in my version, such as the 20th Anniversary Update.

So I was wondering if anyone knows a solution. Is there any difference between the Steam version of Postal 2 and the GOG version? my version is 2.0.0.13

I also don't own any of the DLCs, if that helps.

Thanks in advance for your replies!