Mavericks GM/Upgrade?

[SOV]

How does Apple re-charge if you have downloaded Mavericks GM? If you have a developer account and download the GM for free when and how, or if, will Apple charge you for the upgrade?

 

[bamf-hacker]

In the past if you have a valid developer account then in your downloads in Dev center is the release candidate for the OS.

 

[jsntrenkler]

Once you download the GM as a developer Mavericks will always show up in your downloads. With your $99 fee you also purchased a copy of Mavericks, I just picked up a new Macbook Pro w/Retina and when I went to my purchased software tab there was a Mavericks logo that said "Upgrade To Mavericks" ... I clicked it and it is downloading in the background as I type this.