I am interested in exploring and using Crossbar, I came across this page: https://crossbar.io/docs/Setup-on-Amazon-EC2/
But, before I hit launch on my AMI, I decided to check the version.
It appears the AMI was built on November 1, 2015.
It would seem likely this is version 0.11.1 from that year.
I take it this is an outdated AMI?
I am guessing a docker image is how I should proceed?
Maybe it would help new users if you remove the page and the AMI? (or update them)
Hope this is helpful.