A 150-page report has allegedly slipped out of the office and cites PC-related mishaps. 32-bit, 64-bit and DirectX 11 are all name dropped by known Rockstar devs.
Recently two separate online retailers are said to be expecting GTA V on PC this March, though this of course remains neck-deep in suspicion and disbelief.
The huge bug report came from a leaked XML file back in late September, and had been floating around the GTA community. It recently found a home on Google Drive but was pulled. Highlights definitely include mention of 64-bit and DirectX 11-powered smog. 'PC Only Issues' are strewn throughout, like 'crackly audio'.
So determined are fans to enjoy Grand Theft Auto V on PC that one effort is underway to import the entire GTA V experience into Grand Theft Auto IV's engine - they'retoo.