http://docs.elgg.org is the wiki and it has links to the API reference. http://reference.elgg.org supports multiple versions. For example, the 1.8 reference is at http://reference.elgg.org/1.8
@Cash : the 1.8 version's reference is a broken link.
That's weird - the last slash was causing that. Must be a configuration issue with the web server.
info@elgg.org
Security issues should be reported to security@elgg.org!
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