Neverwinter Nights released by Atari / Bioware in 2002, with expansions in 2003 and premium modules up to 2006 and patches up to 2008 (1.69).
Neverwinter NIghts: Enhanced Edition was release 27th March, 2018.
Here you can find information primarily for modders - module creators, custom content creators, scripters. Particuarly items that are new in EE are highlighted along with their usage.
There will be player-related information but a large amount of this can be found on the Fandom wiki.
For more detailed scripting information see the NWN Lexicon which will be linked to frequently.
This space is for Neverwinter Nights: EE (and also NWN 1.69, where applicable).