Witcher 3 - Retail PC Version FAQ

CD Projekt published a FAQ for the retail PC version of their highly ambitious soon to be relased The Witcher 3: Wild Hunt. Here a sample:

Q: Do I need Internet access to install the retail PC version of The Witcher 3: Wild Hunt?
A: The initial, pre-premiere retail PC batch of The Witcher 3: Wild Hunt needs to download a file from our servers to allow play. This file will either be downloaded automatically during installation process or you can choose to download it manually from a dedicated website. Since we have no DRM in the game, this is a security measure we needed to incorporate so the game doesn’t leak during the production process. No worries, the file will not be big. Copies of The Witcher 3: Wild Hunt produced after launch will not contain this security feature.

[...]

Q: Can I install and play the game without the GOG.com game code?
 A: Yes you can install and play the game without the [included GOG key for a digital backup - ed.] game code. 

Q: Will I be able to install updates and the free DLCs without using the GOG.com game code?
We decided to offer software support, DLCs, and extra goodies only to gamers who confirm their purchase with the provided game code on GOG.com. This is the only way for us to differentiate between you, honest gamers who bought our game, and pirates who snatched it from the Internet.

Some of this will probably provoke discussions.

Sources:
PCGames.de
Gamestar.de