In general you'd report the game's OP with "Game update available" as the reason, and link the update in the "More information" textbox.
It's best if all versions can be linked to, not just the PC one. And if possible, a changelog as well.
In this case though, the most recent update seems to already be available on some sites. It'll get updated here soon as well.
But thank you for wanting to share. It's much appreciated.