Contributing to libinput 
  Contributions to libinput are always welcome.
Any patches should be sent to the wayland-devel email list with a subject prefix of [PATCH libinput]. The easiest way to achieve that is to run the following command in the libinput repository: 
git config --add format.subjectprefix "PATCH libinput"
Likewise, any new features should also be discussed publicly on the wayland-devel list.
 1.8.13
 1.8.13