Version confusions

[MoonKid]

I am confused about the versions of openxcom.

I used the nightly from here
https://openxcom.org/git-builds/

But I also heard about OpenXcom extended in the forum. But it is not up to date anymore because they are fusioned.
https://openxcom.org/forum/index.php/topic,6586.0.html

But because of a problem with XcomFiles Mod somebody told me that I need "extended".
https://openxcom.org/forum/index.php/topic,7721.0.html

OXCE is mentioned nowhere outside of the forum. Not in the download section of openxcom.org not on Wikipedia (where all main mods are described very well but now OXCE).

And technical what is OXCE? Is it a mod or a fork of OXC?

[Meridian]

Full description of what is OXCE: https://openxcom.org/forum/index.php/topic,5251.0.html

Yes, OXCE is a fork of OXC.

OXCE is not mentioned on openxcom.org simply because I don't have access to openxcom.org.