Sarah, Mac users who purchased the game directly from LDW will need to submit our customer support form in order to obtain the latest version. Once we verify the purchase, we will reactivate the download link.

Windows users can just download the update from here. It should install right over your existing game. Note that the download and the installer will not show the last two digits, and will appear as 1.00 and 1.0, respectively.

If you're at all concerned about your game progress, you can always back up your savegame files first, using the procedures in this post.