router, pubsub Aborted core dumped during testing.

[snz2]

router, pubsub Aborted core dumped during testing.
There is no problem if you drop to 4.6.0. Not related to libzmq version

[rolftimmermans]

Recently we have released 6.0 beta. It features a new API that addresses some fundamental issues with the previous API and also addresses a number of stability bugs. To make upgrading easier it includes a compatibility layer with versions 4.x/5.x. It would be great if you could give the latest version a spin to see if this solves this particular issue. If you run into any problems with it, feel free to report it here or in a new issue.

[aminya]

v6 was released. Please try again with the latest version, and report back if the issue still persists.
https://github.com/zeromq/zeromq.js/releases/tag/v6.0.0