Source code
The ack3 GitHub project is at https://github.com/beyondgrep/ack3.
Issue tracker
Bugs, feature requests and other issues can be submitted to https://github.com/beyondgrep/ack3/issues.
ack community
Slack
beyondgrep.com has a dedicated Slack at https://beyondgrep.slack.com/. There you'll find an #ack channel.
The channel is currently invitation-only, so email andy@petdance.com to get an invitation sent to you. Soon we'll have it set up to the general public.
Mailing lists
There are three mailing lists for keeping up on the world of ack.
ack-users
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.
https://groups.google.com/d/forum/ack-users
ack-announce
Very low volume list for announcements of new ack releases.
https://groups.google.com/d/forum/ack-announce
ack-dev
List for discussion of Ack's development - intended primarily for its developers. This is in addition to the ack2 GitHub project.