GTA:O Version

I recently bought GTA 5 on Steam and wanted to know what you guys mean by version of GTA:O and which one i have.
Can someone tell me which version i have and can i hack some money and what hacks it's compatible with? Thanks

They are refering to the patch version, if you have the game on Steam, then you should have the 1.31 patch, as Steam always install the latest updates. If you want to check it, look at the bottom right of your screen when that Rockstar intro plays, the one before the main menu.