According to https://github.com/atom/atom-languageclient/pull/250#issuecomment-449451398 damieng is
[…] no longer involved with GitHub or Atom
Looking at the commits he was the only committer from atom/github for a long time.
My question: who is responsible for it now?
There are several open issues and pull requests. In my opinion this is an integral part of many IDE packages.