This page provides information on how to contact the Klipper developers.
Issue reporting
It is very important to attach the Klipper log file to all reports. The log file has been engineered to answer common questions the Klipper developers have about the software and its environment (software version, hardware type, configuration, event timing, and hundreds of other questions). The developers need the Klipper log file to provide any meaningful assistance; only this log file provides the necessary information.
On a problem report the first step is to issue an M112 command in the OctoPrint terminal window immediately after the undesirable event occurs. This causes Klipper to go into a “shutdown state” and it will cause additional debugging information to be written to the log file.
Issue requests are submitted through Github. All Github issues must include the full /tmp/klippy.log log file from the session that produced the event being reported. An “scp” and/or “sftp” utility is needed to acquire this log file. The “scp” utility comes standard with Linux and MacOS desktops. There are freely available scp utilities for other desktops (eg, WinSCP).
Use the scp utility to copy the /tmp/klippy.log file from the
Raspberry Pi to your desktop. It is a good idea to compress the
klippy.log file before posting it (eg, using zip or gzip). Open a new
issue at https://github.com/KevinOConnor/klipper/issues , provide a
description of the problem, and attach the klippy.log file to the
issue: 
Mailing list
There is a mailing list for general discussions on Klipper. In order
to send am email to the list, one must first subscribe:
https://www.freelists.org/list/klipper . Once subscribed, emails may
be sent to klipper@freelists.org.
Archives of the mailing list are available at: https://www.freelists.org/archive/klipper/
IRC
One may join the #klipper channel on freenode.net ( irc://chat.freenode.net:6667 ).
To communicate in this IRC channel one will need an IRC
client. Configure it to connect to chat.freenode.net on port 6667 and
join the #klipper channel (/join #klipper).
If asking a question on IRC, be sure to ask the question and then stay connected to the channel to receive responses. Due to timezone differences, it may take several hours before receiving a response.