zeromq/zyre — pull request #251 by twhittock (2014-10-04 23:07:00+00:00)
Title: zyre_peers - return a zlist, not a zhash, for safety

Specifically, if the user is tempted to access the elements in the returned hash (as I was) then they will open themselves to unpleasant race conditions with the node actor. Simply returning the peer ids in a list makes it impossible for this to occur.