Source code

The ack3 GitHub project is at

Issue tracker

Bugs, feature requests and other issues can be submitted to

ack community

Code of Conduct

Please follow the Code of Conduct in all your interactions with our project.

Slack has a dedicated Slack at There you'll find an #ack channel.

The channel is currently invitation-only, so email to get an invitation sent to you.

Mailing lists

There are three mailing lists for keeping up on the world of ack.


Main list for discussion of ack for both ack's users and those looking to help contribute. New fans of ack may want to browse the archive for cool tricks.


Very low volume list for announcements of new ack releases.


List for discussion of Ack's development - intended primarily for its developers. This is in addition to the ack2 GitHub project.