As of that commit, Emacs now contains threading primitives. It doesn't change anything visibly for a normal user, but it should now be much easier to build exte

As of that commit, Emacs now contains threading primitives. It doesn't change anything visibly for a normal user, but it should now be much easier to build extensions that don't hang the entire editor while performing certain long-running operations. One of the features a lot of people are hoping for is to have Gnus no longer block everything while fetching emails from the server. Of course, Gnus needs to be updated to support this.