There is an inconsistency between the contents of the queue package when installed via Emacs - from the default "https://elpa.gnu.org/packages/" location - and GNU Savannah - git.savannah.gnu.org - for the package "queue".
If I download queue in Emacs, the version of the file installed has a copyright is 2017. I assume it comes from https://elpa.gnu.org/packages/queue-0.2.el - it matches the version served by https://elpa.gnu.org packages/queue.html under the Latest header.