The official version of AutoHotkey (AHK). Formerly AutoHotkey_L (AHK_L), it is now simply referred to as "AutoHotkey 1.1".
The original creator of AHK, Chris Mallett, released his last version - version 1.0.48.05 - in mid 2009, having lost interest. Lexikos (also known as Steve Gray) had already begun developing a fork that was at the time named AHK_L. AHK_L quickly became the de-facto official version of AutoHotkey. Much long-desired functionality such as Unicode, COM, arrays/objects and more was implemented; some of which was implemented by fellow community members.
After consultation with the community, AutoHotkey_L became the official branch and now has been renamed to "AutoHotkey" or AHK 1.1 to be specific. Lexikos officially became the AHK maintainer.
Main Links
Lexikos · Currently the main author of AHK
Documentation & Tutorials
Documentation (de - 帮助)
Community tutorials · ahkscript.org
Community tutorials · autohotkey.com
Book · Work in progress
日本語 AutoHotkey Wiki · Japanese
Communities
Русскоязычный форум · Russian forum, script-coding.com
한국어/조선말 · Korean, autohotkey.co.kr
Source Code (at Github)
AutoHotkey v2 · Alpha stage
Forks
AutoHotkey.dll + AHK_N + AHK_H
Pocket PCs · WinCE
IronAHK · .NET rewrite (cross-platform, alpha stage / abandoned)
Other
AutoHotkey_Basic · The original version by Chris Mallett which is no longer maintained