A leaked document, containing 150 pages worth of bugs for Grand Theft Auto V has over 170 references to a PC version of the game, going back as far as June 2012.
According to PC Gamer the file had been in circulation in September but has only publicly appeared, and was even on Google Drive for a very short period.
Some of the instances in the file note of PC specific crashes that need ironing out, a "lastgen" toggle, as well as mentions of DX11.
All of the GTA games since III (with the exception of the stories games) have made their way to the PC, it's only a matter of time until Rockstar announce a release date now, surely?
If it's going to be running DX11 then it will definitely be a GPU upgrade for me to one that can handle the massive texture sizes.